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User:Jdlrobson/Page issues analysis

From mediawiki.org

In https://phabricator.wikimedia.org/T204143#4650771 we noted that we are seeing situation where PageIssues events are not matched with ReadingDepth.

This is my analysis.

Note Android doesn't show by default on caniuse - you have to turn it on by clicking "settings" and adding it explicitly.

Method

[edit]

Table of browser user agents mapping to event logging events we were seeing was generated via the following hive query:

hive (event)> SET hive.mapred.mode=nonstrict;
hive (event)> SELECT 
            > browser, major, minor, os, os_major, os_minor,
            > ROUND(100*SUM(IF((pipageToken IS NOT NULL) AND (rdpageToken IS NOT NULL),1,0))/SUM(1),2) AS both, 
            > ROUND(100*SUM(IF((pipageToken IS NOT NULL) AND (rdpageToken IS NULL),1,0))/SUM(1),2) AS only_pi, 
            > ROUND(100*SUM(IF((pipageToken IS NULL) AND (rdpageToken IS NOT NULL),1,0))/SUM(1),2) AS only_rd, 
            > SUM(1) AS all_pageloads
            > FROM (
            >   SELECT 
            >   IF(pi.pageToken IS NOT NULL, pi.browser, rd.browser) AS browser,
            >   IF(pi.pageToken IS NOT NULL, pi.major, rd.major) AS major,
            >   IF(pi.pageToken IS NOT NULL, pi.minor, rd.minor) AS minor,
            >   IF(pi.pageToken IS NOT NULL, pi.os, rd.os) AS os,
            >   IF(pi.pageToken IS NOT NULL, pi.os_major, rd.os_major) AS os_major,
            >   IF(pi.pageToken IS NOT NULL, pi.os_minor, rd.os_minor) AS os_minor,
            >   pi.pageToken AS pipageToken, rd.pageToken AS rdpageToken
            >   FROM (
            >     SELECT useragent.browser_family AS browser,
            >     useragent.browser_major AS major,
            >     useragent.browser_minor AS minor,
            >     useragent.os_family AS os,
            >     useragent.os_major AS os_major,
            >     useragent.os_minor AS os_minor,
            >     event.pageToken AS pageToken
            >     FROM event.pageissues 
            >     WHERE year = 2018 AND month = 10 AND day <=7
            >     AND event.action = 'pageLoaded') AS pi
            >   FULL OUTER JOIN (
            >     SELECT useragent.browser_family AS browser,
            >     useragent.browser_major AS major,
            >     useragent.browser_minor AS minor,
            >     useragent.os_family AS os,
            >     useragent.os_major AS os_major,
            >     useragent.os_minor AS os_minor,
            >     event.pageToken AS pageToken
            >     FROM event.readingdepth
            >     WHERE year = 2018 AND month = 10 AND day <=7
            >     AND event.action = 'pageLoaded'
            >     AND ( event.page_issues_a_sample OR event.page_issues_b_sample )) AS rd
            >   ON pi.pageToken = rd.PageToken) AS alltokens
            > WHERE browser IN ('Chrome Mobile iOS', 'Chrome', 'Android')
            > GROUP BY os, os_major, os_minor, browser, major, minor
            > HAVING all_pageloads >= 100
            > ORDER BY os, os_major, os_minor, browser, major, minor;

With the generated table, For each combination, I considered RL, sendBeacon support and NavigationTimingSupport.

For the same period, I looked at the amount of EventError's that were logged which had pageLoaded in the event.

select
    event.schema as schema,
    count(*) as n
from
    event.eventerror
where
    year = 2018 and
    month = 10 and
    day <= 7 and
    event.rawEvent LIKE "%pageLoaded%"
group by
    event.schema
;

Results

[edit]

The following errors were dropped during the time period

PageIssues	5972
ReadingDepth	2616

This was the table it outputted - I went through each browser/os combination and documented what was expected.

MOSTLY = within 5% discrepancy in results
browser major minor os os_major os_minor both only_pi only_rd all_pageloads supports RL[1] sendBeacon support NavigationTiming[2] Expected Matches expectations
Android 0 5 Android 0 5 94.66 3.91 1.42 281 ? ? ? ? ?
Android 2 0 Android 2 0 10.63 89.37 0.0 207 NO NO NO no events NO
Android 2 3 Android 2 3 38.57 60.95 0.48 210 NO NO NO no events NO
Android 4 0 Android 4 0 9.78 90.11 0.1 34531 NO NO NO no events NO
Chrome 18 0 Android 4 0 0.0 100.0 0.0 248 YES NO NO only_pi YES
Chrome 26 0 Android 4 0 0.0 100.0 0.0 383 YES NO YES only_pi YES
Chrome 42 0 Android 4 0 98.58 0.38 1.04 2112 YES YES YES both MOSTLY
Android 4 1 Android 4 1 0.03 99.97 0.0 87482 YES NO NO only_pi MOSTLY
Chrome 18 0 Android 4 1 22.55 77.31 0.14 1419 YES NO NO only_pi NO
Chrome 26 0 Android 4 1 2.38 97.62 0.0 126 YES NO YES only_pi MOSTLY
Chrome 28 0 Android 4 1 0.0 100.0 0.0 420 YES NO YES only_pi YES
Chrome 47 0 Android 4 1 99.09 0.0 0.91 110 YES YES YES both MOSTLY
Chrome 50 0 Android 4 1 98.15 0.0 1.85 162 YES YES YES both MOSTLY
Chrome 51 0 Android 4 1 99.28 0.0 0.72 277 YES YES YES both MOSTLY
Chrome 53 0 Android 4 1 97.35 0.0 2.65 113 YES YES YES both MOSTLY
Chrome 54 0 Android 4 1 98.64 0.68 0.68 147 YES YES YES both MOSTLY
Chrome 55 0 Android 4 1 94.15 0.53 5.32 188 YES YES YES both NO
Chrome 56 0 Android 4 1 96.17 1.44 2.39 209 YES YES YES both MOSTLY
Chrome 58 0 Android 4 1 97.37 0.88 1.75 114 YES YES YES both MOSTLY
Chrome 59 0 Android 4 1 98.28 0.0 1.72 116 YES YES YES both MOSTLY
Chrome 60 0 Android 4 1 95.56 0.0 4.44 135 YES YES YES both MOSTLY
Chrome 63 0 Android 4 1 98.66 0.0 1.34 149 YES YES YES both MOSTLY
Chrome 64 0 Android 4 1 98.48 0.0 1.52 197 YES YES YES both MOSTLY
Chrome 65 0 Android 4 1 98.54 0.24 1.22 410 YES YES YES both MOSTLY
Chrome 66 0 Android 4 1 98.02 0.74 1.23 405 YES YES YES both MOSTLY
Chrome 67 0 Android 4 1 96.89 0.12 3.0 867 YES YES YES both MOSTLY
Chrome 68 0 Android 4 1 96.76 0.47 2.76 1267 YES YES YES both MOSTLY
Chrome 69 0 Android 4 1 98.19 0.16 1.66 8816 YES YES YES both MOSTLY
Android 4 2 Android 4 2 0.21 99.78 0.0 202719 YES NO YES only_pi MOSTLY
Chrome 18 0 Android 4 2 0.0 100.0 0.0 468 YES NO NO only_pi YES
Chrome 25 0 Android 4 2 0.0 100.0 0.0 186 YES NO YES only_pi YES
Chrome 26 0 Android 4 2 0.0 100.0 0.0 1378 YES NO YES only_pi YES
Chrome 28 0 Android 4 2 0.0 100.0 0.0 926 YES NO YES only_pi YES
Chrome 31 0 Android 4 2 0.0 100.0 0.0 739 YES NO YES only_pi YES
Chrome 33 0 Android 4 2 0.82 99.18 0.0 364 YES NO YES only_pi MOSTLY
Chrome 34 0 Android 4 2 0.0 100.0 0.0 929 YES NO YES only_pi YES
Chrome 46 0 Android 4 2 98.67 1.33 0.0 150 YES YES YES both MOSTLY
Chrome 47 0 Android 4 2 98.22 0.59 1.19 505 YES YES YES both MOSTLY
Chrome 49 0 Android 4 2 97.61 0.6 1.79 335 YES YES YES both MOSTLY
Chrome 50 0 Android 4 2 99.21 0.0 0.79 378 YES YES YES both MOSTLY
Chrome 51 0 Android 4 2 98.59 0.25 1.16 1208 YES YES YES both MOSTLY
Chrome 52 0 Android 4 2 99.18 0.0 0.82 366 YES YES YES both MOSTLY
Chrome 53 0 Android 4 2 97.71 0.86 1.43 350 YES YES YES both MOSTLY
Chrome 54 0 Android 4 2 97.69 0.46 1.85 432 YES YES YES both MOSTLY
Chrome 55 0 Android 4 2 98.3 0.17 1.53 587 YES YES YES both MOSTLY
Chrome 56 0 Android 4 2 97.5 0.45 2.05 1120 YES YES YES both MOSTLY
Chrome 57 0 Android 4 2 95.89 0.46 3.65 219 YES YES YES both MOSTLY
Chrome 58 0 Android 4 2 98.34 0.48 1.19 421 YES YES YES both MOSTLY
Chrome 59 0 Android 4 2 97.76 0.14 2.1 714 YES YES YES both MOSTLY
Chrome 60 0 Android 4 2 98.51 0.0 1.49 335 YES YES YES both MOSTLY
Chrome 61 0 Android 4 2 99.23 0.0 0.77 391 YES YES YES both MOSTLY
Chrome 62 0 Android 4 2 97.38 0.98 1.64 305 YES YES YES both MOSTLY
Chrome 63 0 Android 4 2 98.16 0.55 1.29 543 YES YES YES both MOSTLY
Chrome 64 0 Android 4 2 98.54 0.16 1.3 615 YES YES YES both MOSTLY
Chrome 65 0 Android 4 2 98.09 0.32 1.59 1254 YES YES YES both MOSTLY
Chrome 66 0 Android 4 2 98.01 0.17 1.82 1209 YES YES YES both MOSTLY
Chrome 67 0 Android 4 2 97.63 0.36 2.01 1945 YES YES YES both MOSTLY
Chrome 68 0 Android 4 2 97.77 0.24 1.99 3366 YES YES YES both MOSTLY
Chrome 69 0 Android 4 2 98.22 0.12 1.66 37003 YES YES YES both MOSTLY
Android 4 3 Android 4 3 0.94 99.05 0.02 24806 YES NO NO only_pi MOSTLY
Chrome 28 0 Android 4 3 0.0 100.0 0.0 305 YES NO YES only_pi YES
Chrome 30 0 Android 4 3 0.0 99.02 0.98 102 YES NO YES only_pi MOSTLY
Chrome 34 0 Android 4 3 0.0 100.0 0.0 172 YES NO YES only_pi YES
Chrome 35 0 Android 4 3 0.0 100.0 0.0 125 YES NO YES only_pi YES
Chrome 51 0 Android 4 3 97.98 0.0 2.02 198 YES YES YES both MOSTLY
Chrome 56 0 Android 4 3 98.39 0.0 1.61 124 YES YES YES both MOSTLY
Chrome 59 0 Android 4 3 97.2 0.93 1.87 107 YES YES YES both MOSTLY
Chrome 63 0 Android 4 3 100.0 0.0 0.0 124 YES YES YES both YES
Chrome 64 0 Android 4 3 97.66 0.78 1.56 128 YES YES YES both MOSTLY
Chrome 65 0 Android 4 3 98.04 0.0 1.96 204 YES YES YES both MOSTLY
Chrome 66 0 Android 4 3 97.95 0.0 2.05 195 YES YES YES both MOSTLY
Chrome 67 0 Android 4 3 98.44 0.0 1.56 321 YES YES YES both MOSTLY
Chrome 68 0 Android 4 3 97.83 0.47 1.71 644 YES YES YES both MOSTLY
Chrome 69 0 Android 4 3 98.5 0.2 1.3 4533 YES YES YES both MOSTLY
Android 4 4 Android 4 4 0.91 99.06 0.03 102051 YES NO YES only_pi MOSTLY
Chrome 28 0 Android 4 4 0.0 100.0 0.0 10830 YES NO YES only_pi YES
Chrome 30 0 Android 4 4 0.22 99.78 0.0 158843 YES NO YES only_pi MOSTLY
Chrome 33 0 Android 4 4 0.0 100.0 0.0 122803 YES NO YES only_pi YES
Chrome 34 0 Android 4 4 0.0 100.0 0.0 2515 YES NO YES only_pi YES
Chrome 35 0 Android 4 4 0.0 100.0 0.0 2033 YES NO YES only_pi YES
Chrome 36 0 Android 4 4 0.05 99.95 0.0 4165 YES NO YES only_pi MOSTLY
Chrome 37 0 Android 4 4 0.0 100.0 0.0 541 YES NO YES only_pi YES
Chrome 38 0 Android 4 4 0.48 99.52 0.0 413 YES NO YES only_pi MOSTLY
Chrome 39 0 Android 4 4 100.0 0.0 0.0 129 YES YES YES both YES
Chrome 40 0 Android 4 4 98.26 0.76 0.98 8456 YES YES YES both MOSTLY
Chrome 42 0 Android 4 4 99.55 0.0 0.45 220 YES YES YES both MOSTLY
Chrome 43 0 Android 4 4 98.49 0.0 1.51 332 YES YES YES both MOSTLY
Chrome 44 0 Android 4 4 98.7 0.43 0.87 230 YES YES YES both MOSTLY
Chrome 45 0 Android 4 4 99.67 0.0 0.33 607 YES YES YES both MOSTLY
Chrome 46 0 Android 4 4 98.02 0.0 1.98 303 YES YES YES both MOSTLY
Chrome 47 0 Android 4 4 98.27 0.26 1.47 1565 YES YES YES both MOSTLY
Chrome 48 0 Android 4 4 98.87 0.38 0.75 265 YES YES YES both MOSTLY
Chrome 49 0 Android 4 4 98.21 0.15 1.64 670 YES YES YES both MOSTLY
Chrome 50 0 Android 4 4 98.99 0.07 0.94 1482 YES YES YES both MOSTLY
Chrome 51 0 Android 4 4 98.4 0.19 1.41 3699 YES YES YES both MOSTLY
Chrome 52 0 Android 4 4 98.78 0.09 1.12 1068 YES YES YES both MOSTLY
Chrome 53 0 Android 4 4 97.72 0.38 1.9 1053 YES YES YES both MOSTLY
Chrome 537 306 Android 4 4 0.0 100.0 0.0 1793 ? ? ? ? ?
Chrome 54 0 Android 4 4 96.91 0.49 2.6 1424 YES YES YES both MOSTLY
Chrome 55 0 Android 4 4 97.74 0.29 1.97 2078 YES YES YES both MOSTLY
Chrome 56 0 Android 4 4 97.36 0.31 2.33 2874 YES YES YES both MOSTLY
Chrome 57 0 Android 4 4 97.28 0.35 2.36 847 YES YES YES both MOSTLY
Chrome 58 0 Android 4 4 96.96 0.47 2.57 1905 YES YES YES both MOSTLY
Chrome 59 0 Android 4 4 96.87 0.85 2.28 1885 YES YES YES both MOSTLY
Chrome 60 0 Android 4 4 97.92 0.4 1.68 1489 YES YES YES both MOSTLY
Chrome 61 0 Android 4 4 98.63 0.46 0.91 1749 YES YES YES both MOSTLY
Chrome 62 0 Android 4 4 97.77 0.34 1.89 1483 YES YES YES both MOSTLY
Chrome 63 0 Android 4 4 97.74 0.32 1.94 3098 YES YES YES both MOSTLY
Chrome 64 0 Android 4 4 97.46 0.25 2.29 2755 YES YES YES both MOSTLY
Chrome 65 0 Android 4 4 97.49 0.64 1.88 5652 YES YES YES both MOSTLY
Chrome 66 0 Android 4 4 97.75 0.3 1.95 6396 YES YES YES both MOSTLY
Chrome 67 0 Android 4 4 97.52 0.35 2.13 10020 YES YES YES both MOSTLY
Chrome 68 0 Android 4 4 97.69 0.32 2.0 15338 YES YES YES both MOSTLY
Chrome 69 0 Android 4 4 98.34 0.19 1.46 154054 YES YES YES both MOSTLY
Chrome 70 0 Android 4 4 98.07 0.0 1.93 311 YES YES YES both MOSTLY
Chrome 71 0 Android 4 4 97.44 0.64 1.92 156 YES YES YES both MOSTLY
Android 5 0 Android 5 0 61.26 37.67 1.08 1115 YES YES YES both NO
Chrome 34 0 Android 5 0 0.0 100.0 0.0 917 YES NO YES only_pi YES
Chrome 37 0 Android 5 0 0.05 99.95 0.0 36448 YES NO YES only_pi MOSTLY
Chrome 38 0 Android 5 0 7.86 91.98 0.16 611 YES NO YES only_pi NO
Chrome 39 0 Android 5 0 97.81 0.73 1.46 3423 YES YES YES both MOSTLY
Chrome 40 0 Android 5 0 98.77 0.18 1.05 10331 YES YES YES both MOSTLY
Chrome 41 0 Android 5 0 97.68 0.66 1.66 302 YES YES YES both MOSTLY
Chrome 42 0 Android 5 0 98.49 0.65 0.86 463 YES YES YES both MOSTLY
Chrome 43 0 Android 5 0 98.14 0.64 1.21 2636 YES YES YES both MOSTLY
Chrome 46 0 Android 5 0 99.26 0.09 0.64 1087 YES YES YES both MOSTLY
Chrome 47 0 Android 5 0 97.64 0.0 2.36 381 YES YES YES both MOSTLY
Chrome 49 0 Android 5 0 99.26 0.37 0.37 269 YES YES YES both MOSTLY
Chrome 50 0 Android 5 0 99.42 0.0 0.58 686 YES YES YES both MOSTLY
Chrome 51 0 Android 5 0 98.11 0.35 1.53 847 YES YES YES both MOSTLY
Chrome 52 0 Android 5 0 98.38 0.0 1.62 554 YES YES YES both MOSTLY
Chrome 53 0 Android 5 0 97.8 0.79 1.42 635 YES YES YES both MOSTLY
Chrome 54 0 Android 5 0 97.01 0.75 2.24 670 YES YES YES both MOSTLY
Chrome 55 0 Android 5 0 97.99 0.09 1.91 1097 YES YES YES both MOSTLY
Chrome 56 0 Android 5 0 96.85 0.55 2.6 1271 YES YES YES both MOSTLY
Chrome 57 0 Android 5 0 94.63 0.23 5.14 428 YES YES YES both MOSTLY
Chrome 58 0 Android 5 0 97.53 0.34 2.13 1176 YES YES YES both MOSTLY
Chrome 59 0 Android 5 0 97.56 0.47 1.97 1066 YES YES YES both MOSTLY
Chrome 60 0 Android 5 0 98.28 0.12 1.6 814 YES YES YES both MOSTLY
Chrome 61 0 Android 5 0 97.78 0.51 1.72 989 YES YES YES both MOSTLY
Chrome 62 0 Android 5 0 98.86 0.34 0.8 879 YES YES YES both MOSTLY
Chrome 63 0 Android 5 0 97.36 0.18 2.45 1630 YES YES YES both MOSTLY
Chrome 64 0 Android 5 0 97.75 0.29 1.96 1731 YES YES YES both MOSTLY
Chrome 65 0 Android 5 0 96.97 0.16 2.87 3032 YES YES YES both MOSTLY
Chrome 66 0 Android 5 0 98.24 0.18 1.58 3913 YES YES YES both MOSTLY
Chrome 67 0 Android 5 0 97.52 0.2 2.28 7338 YES YES YES both MOSTLY
Chrome 68 0 Android 5 0 97.38 0.25 2.37 10364 YES YES YES both MOSTLY
Chrome 69 0 Android 5 0 98.45 0.18 1.37 88155 YES YES YES both MOSTLY
Android 5 1 Android 5 1 56.08 42.58 1.34 5824 YES YES YES both NO
Chrome 30 0 Android 5 1 1.92 98.08 0.0 313 YES NO YES only_pi MOSTLY
Chrome 33 0 Android 5 1 0.0 100.0 0.0 253 YES NO YES only_pi YES
Chrome 38 0 Android 5 1 1.66 98.34 0.0 301 YES NO YES only_pi MOSTLY
Chrome 39 0 Android 5 1 98.36 0.5 1.14 5367 YES YES YES both MOSTLY
Chrome 40 0 Android 5 1 94.94 2.78 2.28 395 YES YES YES both NO
Chrome 42 0 Android 5 1 95.53 3.63 0.84 1431 YES YES YES both MOSTLY
Chrome 43 0 Android 5 1 98.3 0.94 0.76 19859 YES YES YES both MOSTLY
Chrome 46 0 Android 5 1 98.7 0.58 0.72 2760 YES YES YES both MOSTLY
Chrome 47 0 Android 5 1 96.17 0.85 2.98 235 YES YES YES both MOSTLY
Chrome 49 0 Android 5 1 98.61 0.17 1.22 576 YES YES YES both MOSTLY
Chrome 50 0 Android 5 1 98.49 0.48 1.03 2707 YES YES YES both MOSTLY
Chrome 51 0 Android 5 1 98.95 0.23 0.81 859 YES YES YES both MOSTLY
Chrome 52 0 Android 5 1 98.05 0.65 1.3 615 YES YES YES both MOSTLY
Chrome 53 0 Android 5 1 96.22 0.66 3.12 609 YES YES YES both MOSTLY
Chrome 54 0 Android 5 1 98.0 0.13 1.88 800 YES YES YES both MOSTLY
Chrome 55 0 Android 5 1 97.86 0.73 1.41 1774 YES YES YES both MOSTLY
Chrome 56 0 Android 5 1 97.22 0.43 2.35 1403 YES YES YES both MOSTLY
Chrome 57 0 Android 5 1 95.11 3.71 1.18 14629 YES YES YES both MOSTLY
Chrome 58 0 Android 5 1 97.43 0.68 1.89 2064 YES YES YES both MOSTLY
Chrome 59 0 Android 5 1 98.39 0.25 1.36 1989 YES YES YES both MOSTLY
Chrome 60 0 Android 5 1 96.51 1.14 2.35 1405 YES YES YES both MOSTLY
Chrome 61 0 Android 5 1 97.96 0.37 1.66 1867 YES YES YES both MOSTLY
Chrome 62 0 Android 5 1 97.38 0.77 1.85 2217 YES YES YES both MOSTLY
Chrome 63 0 Android 5 1 98.0 0.21 1.79 2843 YES YES YES both MOSTLY
Chrome 64 0 Android 5 1 97.8 0.78 1.42 2816 YES YES YES both MOSTLY
Chrome 65 0 Android 5 1 98.11 0.21 1.68 6143 YES YES YES both MOSTLY
Chrome 66 0 Android 5 1 97.71 0.47 1.82 6331 YES YES YES both MOSTLY
Chrome 67 0 Android 5 1 97.7 0.36 1.94 11862 YES YES YES both MOSTLY
Chrome 68 0 Android 5 1 97.52 0.43 2.05 18612 YES YES YES both MOSTLY
Chrome 69 0 Android 5 1 98.44 0.21 1.35 162916 YES YES YES both MOSTLY
Chrome 70 0 Android 5 1 96.43 0.6 2.98 168 YES YES YES both MOSTLY
Android 6 0 Android 6 0 82.85 14.55 2.6 5039 YES YES YES both NO
Chrome 30 0 Android 6 0 17.38 82.0 0.62 650 YES NO YES only_pi NO
Chrome 38 0 Android 6 0 99.3 0.0 0.7 287 YES NO YES only_pi MOSTLY
Chrome 40 0 Android 6 0 96.11 3.16 0.73 10726 YES YES YES both MOSTLY
Chrome 44 0 Android 6 0 95.96 0.45 3.59 223 YES YES YES both MOSTLY
Chrome 46 0 Android 6 0 98.71 0.41 0.88 2712 YES YES YES both MOSTLY
Chrome 49 0 Android 6 0 97.9 0.39 1.71 2337 YES YES YES both MOSTLY
Chrome 50 0 Android 6 0 98.41 0.55 1.04 5778 YES YES YES both MOSTLY
Chrome 51 0 Android 6 0 97.98 0.43 1.59 692 YES YES YES both MOSTLY
Chrome 52 0 Android 6 0 97.23 1.54 1.23 3830 YES YES YES both MOSTLY
Chrome 53 0 Android 6 0 97.08 1.5 1.43 3010 YES YES YES both MOSTLY
Chrome 54 0 Android 6 0 96.68 0.66 2.66 1505 YES YES YES both MOSTLY
Chrome 55 0 Android 6 0 97.63 0.61 1.77 5097 YES YES YES both MOSTLY
Chrome 56 0 Android 6 0 98.59 0.52 0.9 16974 YES YES YES both MOSTLY
Chrome 57 0 Android 6 0 95.0 3.74 1.26 11691 YES YES YES both MOSTLY
Chrome 58 0 Android 6 0 97.51 0.43 2.06 1165 YES YES YES both MOSTLY
Chrome 59 0 Android 6 0 98.32 0.38 1.3 1310 YES YES YES both MOSTLY
Chrome 60 0 Android 6 0 98.03 1.43 0.54 1115 YES YES YES both MOSTLY
Chrome 61 0 Android 6 0 98.23 0.41 1.36 1469 YES YES YES both MOSTLY
Chrome 62 0 Android 6 0 98.61 0.31 1.08 1298 YES YES YES both MOSTLY
Chrome 63 0 Android 6 0 98.08 0.59 1.33 2549 YES YES YES both MOSTLY
Chrome 64 0 Android 6 0 97.9 0.31 1.8 2946 YES YES YES both MOSTLY
Chrome 65 0 Android 6 0 98.31 0.32 1.37 5680 YES YES YES both NO
Chrome 66 0 Android 6 0 97.55 0.46 1.99 6570 YES YES YES both MOSTLY
Chrome 67 0 Android 6 0 98.25 0.39 1.36 11510 YES YES YES both MOSTLY
Chrome 68 0 Android 6 0 97.77 0.34 1.9 19069 YES YES YES both MOSTLY
Chrome 69 0 Android 6 0 98.43 0.25 1.32 217506 YES YES YES both MOSTLY
Chrome 70 0 Android 6 0 96.58 0.0 3.42 146 YES YES YES both MOSTLY
Chrome 71 0 Android 6 0 98.66 0.67 0.67 149 YES YES YES both MOSTLY
Android 7 0 Android 7 0 85.65 12.96 1.38 2962 YES YES YES both NO
Chrome 30 0 Android 7 0 14.05 85.29 0.65 306 YES NO YES only_pi NO
Chrome 40 0 Android 7 0 97.25 0.92 1.83 109 YES YES YES both MOSTLY
Chrome 52 0 Android 7 0 98.25 0.6 1.16 2850 YES YES YES both MOSTLY
Chrome 55 0 Android 7 0 98.3 0.32 1.38 1236 YES YES YES both MOSTLY
Chrome 56 0 Android 7 0 96.94 1.38 1.68 4641 YES YES YES both MOSTLY
Chrome 57 0 Android 7 0 94.32 4.09 1.59 2325 YES YES YES both NO
Chrome 58 0 Android 7 0 97.97 0.28 1.74 2465 YES YES YES both MOSTLY
Chrome 59 0 Android 7 0 96.96 0.95 2.09 1054 YES YES YES both MOSTLY
Chrome 60 0 Android 7 0 98.46 0.39 1.16 1814 YES YES YES both MOSTLY
Chrome 61 0 Android 7 0 98.2 0.55 1.25 2553 YES YES YES both MOSTLY
Chrome 62 0 Android 7 0 94.59 4.3 1.11 3067 YES YES YES both MOSTLY
Chrome 63 0 Android 7 0 97.49 0.59 1.92 2033 YES YES YES both MOSTLY
Chrome 64 0 Android 7 0 98.58 0.46 0.96 7529 YES YES YES both MOSTLY
Chrome 65 0 Android 7 0 98.64 0.34 1.02 3241 YES YES YES both MOSTLY
Chrome 66 0 Android 7 0 98.21 0.41 1.38 4130 YES YES YES both MOSTLY
Chrome 67 0 Android 7 0 97.92 0.32 1.75 8383 YES YES YES both MOSTLY
Chrome 68 0 Android 7 0 98.17 0.37 1.47 15817 YES YES YES both MOSTLY
Chrome 69 0 Android 7 0 98.85 0.27 0.88 241138 YES YES YES both MOSTLY
Chrome 70 0 Android 7 0 100.0 0.0 0.0 237 YES YES YES both YES
Android 7 1 Android 7 1 97.05 1.34 1.61 746 YES YES YES both MOSTLY
Chrome 55 0 Android 7 1 97.81 0.27 1.92 365 YES YES YES both MOSTLY
Chrome 56 0 Android 7 1 97.77 0.76 1.47 2104 YES YES YES both MOSTLY
Chrome 57 0 Android 7 1 94.35 4.27 1.38 1733 YES YES YES both MOSTLY
Chrome 58 0 Android 7 1 98.42 0.29 1.29 696 YES YES YES both MOSTLY
Chrome 59 0 Android 7 1 97.75 0.66 1.59 755 YES YES YES both MOSTLY
Chrome 60 0 Android 7 1 98.22 0.32 1.46 2816 YES YES YES both MOSTLY
Chrome 61 0 Android 7 1 97.31 1.83 0.85 819 YES YES YES both MOSTLY
Chrome 62 0 Android 7 1 97.11 0.87 2.02 1486 YES YES YES both MOSTLY
Chrome 63 0 Android 7 1 97.42 0.74 1.84 1085 YES YES YES both MOSTLY
Chrome 64 0 Android 7 1 97.7 0.35 1.95 2262 YES YES YES both MOSTLY
Chrome 65 0 Android 7 1 97.81 0.27 1.92 1875 YES YES YES both MOSTLY
Chrome 66 0 Android 7 1 98.41 0.14 1.44 2080 YES YES YES both MOSTLY
Chrome 67 0 Android 7 1 98.13 0.34 1.53 3800 YES YES YES both MOSTLY
Chrome 68 0 Android 7 1 97.93 0.38 1.69 7347 YES YES YES both MOSTLY
Chrome 69 0 Android 7 1 98.67 0.21 1.12 96124 YES YES YES both MOSTLY
Android 8 0 Android 8 0 96.07 2.66 1.26 4432 YES YES YES both MOSTLY
Chrome 57 0 Android 8 0 94.55 4.81 0.64 312 YES YES YES both NO
Chrome 64 0 Android 8 0 98.68 0.66 0.66 152 YES YES YES both MOSTLY
Chrome 65 0 Android 8 0 97.95 0.17 1.88 584 YES YES YES both MOSTLY
Chrome 66 0 Android 8 0 98.66 0.3 1.04 2974 YES YES YES both MOSTLY
Chrome 67 0 Android 8 0 98.95 0.35 0.7 285 YES YES YES both MOSTLY
Chrome 68 0 Android 8 0 96.07 0.38 3.55 788 YES YES YES both MOSTLY
Chrome 69 0 Android 8 0 98.92 0.26 0.82 15848 YES YES YES both MOSTLY
Android 8 1 Android 8 1 94.96 3.5 1.54 2143 YES YES YES both NO
Chrome 57 0 Android 8 1 90.52 7.76 1.72 232 YES YES YES both NO
Chrome 66 0 Android 8 1 98.95 0.52 0.52 572 YES YES YES both MOSTLY
Chrome 67 0 Android 8 1 100.0 0.0 0.0 262 YES YES YES both YES
Chrome 68 0 Android 8 1 99.32 0.34 0.34 294 YES YES YES both MOSTLY
Chrome 69 0 Android 8 1 99.08 0.25 0.68 7253 YES YES YES both MOSTLY
Chrome 69 0 Chrome OS 10895 56 96.92 0.22 2.86 454 YES YES YES both MOSTLY
Chrome 11 0 Linux NULL NULL 31.97 67.81 0.22 1370 YES NO NO only_pi NO
Chrome 33 0 Linux NULL NULL 0.0 100.0 0.0 292 YES NO YES only_pi YES
Chrome 38 0 Linux NULL NULL 6.69 93.31 0.0 239 YES NO YES only_pi NO
Chrome 61 0 Linux NULL NULL 98.51 0.9 0.6 335 YES YES YES both MOSTLY
Chrome 64 0 Linux NULL NULL 96.13 0.55 3.31 181 YES YES YES both MOSTLY
Chrome 65 0 Linux NULL NULL 98.56 0.96 0.48 208 YES YES YES both MOSTLY
Chrome 66 0 Linux NULL NULL 98.76 0.31 0.93 322 YES YES YES both MOSTLY
Chrome 67 0 Linux NULL NULL 97.52 0.41 2.07 484 YES YES YES both MOSTLY
Chrome 68 0 Linux NULL NULL 97.16 0.43 2.41 704 YES YES YES both MOSTLY
Chrome 69 0 Linux NULL NULL 98.77 0.29 0.94 5874 YES YES YES both MOSTLY
Chrome 69 0 Mac OS X 10 10 100.0 0.0 0.0 170 YES YES YES both YES
Chrome 69 0 Mac OS X 10 11 99.41 0.0 0.59 338 YES YES YES both MOSTLY
Chrome 69 0 Mac OS X 10 12 96.29 0.37 3.34 539 YES YES YES both MOSTLY
Chrome 68 0 Mac OS X 10 13 99.47 0.0 0.53 189 YES YES YES both MOSTLY
Chrome 69 0 Mac OS X 10 13 96.86 0.13 3.01 1497 YES YES YES both MOSTLY
Chrome 69 0 Mac OS X 10 14 93.93 0.0 6.07 247 YES YES YES both NO
Chrome 45 0 Windows 10 NULL 99.02 0.42 0.56 712 YES YES YES both MOSTLY
Chrome 59 0 Windows 10 NULL 95.61 2.63 1.75 114 YES YES YES both MOSTLY
Chrome 60 0 Windows 10 NULL 97.01 2.99 0.0 134 YES YES YES both MOSTLY
Chrome 63 0 Windows 10 NULL 98.34 0.0 1.66 181 YES YES YES both MOSTLY
Chrome 65 0 Windows 10 NULL 97.61 1.44 0.96 209 YES YES YES both MOSTLY
Chrome 67 0 Windows 10 NULL 100.0 0.0 0.0 168 YES YES YES both YES
Chrome 68 0 Windows 10 NULL 98.44 1.04 0.52 384 YES YES YES both MOSTLY
Chrome 69 0 Windows 10 NULL 98.86 0.23 0.91 13124 YES YES YES both MOSTLY
Chrome 40 0 Windows 7 NULL 100.0 0.0 0.0 108 YES YES YES both YES
Chrome 49 0 Windows 7 NULL 94.82 1.55 3.63 193 YES YES YES both NO
Chrome 63 0 Windows 7 NULL 98.61 1.39 0.0 144 YES YES YES both MOSTLY
Chrome 68 0 Windows 7 NULL 95.24 3.9 0.87 231 YES YES YES both MOSTLY
Chrome 69 0 Windows 7 NULL 98.96 0.31 0.73 6741 YES YES YES both MOSTLY
Chrome 69 0 Windows 8 NULL 100.0 0.0 0.0 126 YES YES YES both YES
Chrome 69 0 Windows 8.1 NULL 99.17 0.26 0.58 1560 YES YES YES both MOSTLY
Chrome 40 0 Windows XP NULL 97.33 1.4 1.26 712 YES YES YES both MOSTLY
Chrome 49 0 Windows XP NULL 98.55 0.72 0.72 276 YES YES YES both MOSTLY
Chrome 57 0 Windows XP NULL 93.32 5.42 1.26 1033 YES YES YES both MOSTLY
Chrome Mobile iOS 62 0 iOS 10 0 0.0 100.0 0.0 109 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 10 0 0.0 100.0 0.0 130 YES YES NO only_pi YES
Chrome Mobile iOS 64 0 iOS 10 0 0.0 100.0 0.0 123 YES YES NO only_pi YES
Chrome Mobile iOS 65 0 iOS 10 0 0.0 100.0 0.0 131 YES YES NO only_pi YES
Chrome Mobile iOS 66 0 iOS 10 0 0.0 100.0 0.0 151 YES YES NO only_pi YES
Chrome Mobile iOS 67 0 iOS 10 0 0.0 100.0 0.0 361 YES YES NO only_pi YES
Chrome Mobile iOS 68 0 iOS 10 0 0.0 100.0 0.0 949 YES YES NO only_pi YES
Chrome Mobile iOS 69 0 iOS 10 0 0.0 100.0 0.0 2642 YES YES NO only_pi YES
Chrome Mobile iOS 54 0 iOS 10 1 0.0 100.0 0.0 115 YES YES NO only_pi YES
Chrome Mobile iOS 55 0 iOS 10 1 0.0 100.0 0.0 131 YES YES NO only_pi YES
Chrome Mobile iOS 59 0 iOS 10 1 0.0 100.0 0.0 135 YES YES NO only_pi YES
Chrome Mobile iOS 61 0 iOS 10 1 0.0 100.0 0.0 203 YES YES NO only_pi YES
Chrome Mobile iOS 62 0 iOS 10 1 0.0 100.0 0.0 123 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 10 1 0.0 100.0 0.0 168 YES YES NO only_pi YES
Chrome Mobile iOS 65 0 iOS 10 1 0.0 100.0 0.0 108 YES YES NO only_pi YES
Chrome Mobile iOS 66 0 iOS 10 1 0.0 100.0 0.0 207 YES YES NO only_pi YES
Chrome Mobile iOS 67 0 iOS 10 1 0.0 100.0 0.0 422 YES YES NO only_pi YES
Chrome Mobile iOS 68 0 iOS 10 1 0.0 100.0 0.0 1027 YES YES NO only_pi YES
Chrome Mobile iOS 69 0 iOS 10 1 0.0 100.0 0.0 3323 YES YES NO only_pi YES
Chrome Mobile iOS 53 0 iOS 10 2 0.0 100.0 0.0 102 YES YES NO only_pi YES
Chrome Mobile iOS 54 0 iOS 10 2 0.0 100.0 0.0 137 YES YES NO only_pi YES
Chrome Mobile iOS 55 0 iOS 10 2 0.0 100.0 0.0 419 YES YES NO only_pi YES
Chrome Mobile iOS 56 0 iOS 10 2 0.0 100.0 0.0 335 YES YES NO only_pi YES
Chrome Mobile iOS 57 0 iOS 10 2 0.0 100.0 0.0 343 YES YES NO only_pi YES
Chrome Mobile iOS 58 0 iOS 10 2 0.0 100.0 0.0 286 YES YES NO only_pi YES
Chrome Mobile iOS 59 0 iOS 10 2 0.0 100.0 0.0 240 YES YES NO only_pi YES
Chrome Mobile iOS 60 0 iOS 10 2 0.0 100.0 0.0 196 YES YES NO only_pi YES
Chrome Mobile iOS 61 0 iOS 10 2 0.0 100.0 0.0 283 YES YES NO only_pi YES
Chrome Mobile iOS 62 0 iOS 10 2 0.0 100.0 0.0 373 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 10 2 0.0 100.0 0.0 366 YES YES NO only_pi YES
Chrome Mobile iOS 64 0 iOS 10 2 0.0 100.0 0.0 421 YES YES NO only_pi YES
Chrome Mobile iOS 65 0 iOS 10 2 0.0 100.0 0.0 451 YES YES NO only_pi YES
Chrome Mobile iOS 66 0 iOS 10 2 0.0 100.0 0.0 648 YES YES NO only_pi YES
Chrome Mobile iOS 67 0 iOS 10 2 0.0 100.0 0.0 1127 YES YES NO only_pi YES
Chrome Mobile iOS 68 0 iOS 10 2 0.0 100.0 0.0 3192 YES YES NO only_pi YES
Chrome Mobile iOS 69 0 iOS 10 2 0.0 100.0 0.0 9283 YES YES NO only_pi YES
Chrome Mobile iOS 51 0 iOS 10 3 0.0 100.0 0.0 161 YES YES NO only_pi YES
Chrome Mobile iOS 52 0 iOS 10 3 0.0 100.0 0.0 162 YES YES NO only_pi YES
Chrome Mobile iOS 53 0 iOS 10 3 0.0 100.0 0.0 439 YES YES NO only_pi YES
Chrome Mobile iOS 54 0 iOS 10 3 0.0 100.0 0.0 363 YES YES NO only_pi YES
Chrome Mobile iOS 55 0 iOS 10 3 0.0 100.0 0.0 495 YES YES NO only_pi YES
Chrome Mobile iOS 56 0 iOS 10 3 0.3 99.7 0.0 338 YES YES NO only_pi NO
Chrome Mobile iOS 57 0 iOS 10 3 0.0 100.0 0.0 517 YES YES NO only_pi YES
Chrome Mobile iOS 58 0 iOS 10 3 0.0 100.0 0.0 900 YES YES NO only_pi YES
Chrome Mobile iOS 59 0 iOS 10 3 0.0 100.0 0.0 1185 YES YES NO only_pi YES
Chrome Mobile iOS 60 0 iOS 10 3 0.0 100.0 0.0 1107 YES YES NO only_pi YES
Chrome Mobile iOS 61 0 iOS 10 3 0.22 99.78 0.0 1361 YES YES NO only_pi NO
Chrome Mobile iOS 62 0 iOS 10 3 0.0 100.0 0.0 1256 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 10 3 0.0 100.0 0.0 1659 YES YES NO only_pi YES
Chrome Mobile iOS 64 0 iOS 10 3 0.0 100.0 0.0 1380 YES YES NO only_pi YES
Chrome Mobile iOS 65 0 iOS 10 3 0.0 100.0 0.0 1511 YES YES NO only_pi YES
Chrome Mobile iOS 66 0 iOS 10 3 0.0 100.0 0.0 2369 YES YES NO only_pi YES
Chrome Mobile iOS 67 0 iOS 10 3 0.0 100.0 0.0 4458 YES YES NO only_pi YES
Chrome Mobile iOS 68 0 iOS 10 3 0.01 99.99 0.0 10996 YES YES NO only_pi
Chrome Mobile iOS 69 0 iOS 10 3 0.0 100.0 0.0 44898 YES YES NO only_pi YES
Chrome Mobile iOS 59 0 iOS 11 0 0.0 100.0 0.0 178 YES YES NO only_pi YES
Chrome Mobile iOS 60 0 iOS 11 0 0.0 100.0 0.0 154 YES YES NO only_pi YES
Chrome Mobile iOS 61 0 iOS 11 0 2.54 97.46 0.0 473 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 62 0 iOS 11 0 0.0 100.0 0.0 514 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 11 0 0.0 100.0 0.0 485 YES YES NO only_pi YES
Chrome Mobile iOS 64 0 iOS 11 0 0.0 100.0 0.0 339 YES YES NO only_pi YES
Chrome Mobile iOS 65 0 iOS 11 0 0.0 100.0 0.0 329 YES YES NO only_pi YES
Chrome Mobile iOS 66 0 iOS 11 0 0.0 100.0 0.0 447 YES YES NO only_pi YES
Chrome Mobile iOS 67 0 iOS 11 0 0.0 100.0 0.0 1052 YES YES NO only_pi YES
Chrome Mobile iOS 68 0 iOS 11 0 0.0 100.0 0.0 2736 YES YES NO only_pi YES
Chrome Mobile iOS 69 0 iOS 11 0 0.0 99.99 0.01 11171 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 53 0 iOS 11 1 0.0 100.0 0.0 116 YES YES NO only_pi YES
Chrome Mobile iOS 59 0 iOS 11 1 0.0 100.0 0.0 121 YES YES NO only_pi YES
Chrome Mobile iOS 61 0 iOS 11 1 0.0 100.0 0.0 163 YES YES NO only_pi YES
Chrome Mobile iOS 62 0 iOS 11 1 0.0 100.0 0.0 454 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 11 1 0.0 100.0 0.0 462 YES YES NO only_pi YES
Chrome Mobile iOS 64 0 iOS 11 1 0.0 100.0 0.0 422 YES YES NO only_pi YES
Chrome Mobile iOS 65 0 iOS 11 1 0.0 100.0 0.0 415 YES YES NO only_pi YES
Chrome Mobile iOS 66 0 iOS 11 1 0.0 100.0 0.0 472 YES YES NO only_pi YES
Chrome Mobile iOS 67 0 iOS 11 1 0.0 100.0 0.0 1176 YES YES NO only_pi YES
Chrome Mobile iOS 68 0 iOS 11 1 0.0 100.0 0.0 2706 YES YES NO only_pi YES
Chrome Mobile iOS 69 0 iOS 11 1 0.0 100.0 0.0 12023 YES YES NO only_pi YES
Chrome Mobile iOS 51 0 iOS 11 2 0.0 100.0 0.0 124 YES YES NO only_pi YES
Chrome Mobile iOS 52 0 iOS 11 2 0.0 100.0 0.0 113 YES YES NO only_pi YES
Chrome Mobile iOS 53 0 iOS 11 2 0.0 100.0 0.0 195 YES YES NO only_pi YES
Chrome Mobile iOS 54 0 iOS 11 2 0.0 100.0 0.0 224 YES YES NO only_pi YES
Chrome Mobile iOS 55 0 iOS 11 2 0.0 100.0 0.0 272 YES YES NO only_pi YES
Chrome Mobile iOS 56 0 iOS 11 2 0.0 100.0 0.0 228 YES YES NO only_pi YES
Chrome Mobile iOS 57 0 iOS 11 2 0.0 100.0 0.0 214 YES YES NO only_pi YES
Chrome Mobile iOS 58 0 iOS 11 2 0.0 100.0 0.0 368 YES YES NO only_pi YES
Chrome Mobile iOS 59 0 iOS 11 2 0.0 100.0 0.0 379 YES YES NO only_pi YES
Chrome Mobile iOS 60 0 iOS 11 2 0.0 100.0 0.0 354 YES YES NO only_pi YES
Chrome Mobile iOS 61 0 iOS 11 2 0.0 100.0 0.0 560 YES YES NO only_pi YES
Chrome Mobile iOS 62 0 iOS 11 2 0.0 100.0 0.0 798 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 11 2 0.61 99.39 0.0 1467 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 64 0 iOS 11 2 0.0 100.0 0.0 1538 YES YES NO only_pi YES
Chrome Mobile iOS 65 0 iOS 11 2 0.0 100.0 0.0 1807 YES YES NO only_pi YES
Chrome Mobile iOS 66 0 iOS 11 2 0.0 100.0 0.0 1892 YES YES NO only_pi YES
Chrome Mobile iOS 67 0 iOS 11 2 0.02 99.98 0.0 4320 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 68 0 iOS 11 2 0.0 100.0 0.0 11610 YES YES NO only_pi YES
Chrome Mobile iOS 69 0 iOS 11 2 0.0 100.0 0.0 45609 YES YES NO only_pi YES
Chrome Mobile iOS 62 0 iOS 11 3 99.03 0.0 0.97 103 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 63 0 iOS 11 3 100.0 0.0 0.0 132 YES YES YES[3] both YES
Chrome Mobile iOS 64 0 iOS 11 3 99.02 0.0 0.98 102 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 65 0 iOS 11 3 99.37 0.63 0.0 159 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 66 0 iOS 11 3 98.68 0.79 0.53 380 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 67 0 iOS 11 3 99.32 0.68 0.0 438 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 68 0 iOS 11 3 99.52 0.36 0.12 1682 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 69 0 iOS 11 3 98.84 0.38 0.78 5521 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 55 0 iOS 11 4 98.47 0.76 0.76 131 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 56 0 iOS 11 4 100.0 0.0 0.0 100 YES YES YES[3] both YES
Chrome Mobile iOS 57 0 iOS 11 4 100.0 0.0 0.0 115 YES YES YES[3] both YES
Chrome Mobile iOS 58 0 iOS 11 4 100.0 0.0 0.0 101 YES YES YES[3] both YES
Chrome Mobile iOS 59 0 iOS 11 4 99.39 0.61 0.0 164 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 60 0 iOS 11 4 98.88 0.0 1.12 179 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 61 0 iOS 11 4 99.09 0.0 0.91 328 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 62 0 iOS 11 4 98.92 0.81 0.27 371 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 63 0 iOS 11 4 99.22 0.47 0.31 644 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 64 0 iOS 11 4 98.35 1.18 0.47 423 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 65 0 iOS 11 4 99.83 0.17 0.0 572 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 66 0 iOS 11 4 99.41 0.24 0.35 846 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 67 0 iOS 11 4 99.38 0.33 0.28 2112 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 68 0 iOS 11 4 99.28 0.3 0.42 12492 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 69 0 iOS 11 4 99.37 0.32 0.32 49626 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 61 0 iOS 12 0 99.56 0.0 0.44 225 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 62 0 iOS 12 0 99.3 0.7 0.0 143 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 63 0 iOS 12 0 98.67 0.44 0.89 450 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 64 0 iOS 12 0 98.31 0.56 1.12 178 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 65 0 iOS 12 0 98.84 0.78 0.39 258 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 66 0 iOS 12 0 99.46 0.54 0.0 373 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 67 0 iOS 12 0 99.88 0.0 0.12 847 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 68 0 iOS 12 0 99.36 0.24 0.4 6293 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 69 0 iOS 12 0 99.53 0.22 0.26 72292 YES YES YES[3] both MOSTLY
Chrome Mobile iOS 69 0 iOS 12 1 99.4 0.2 0.4 1008 YES YES[3] both MOSTLY
Chrome Mobile iOS 19 0 iOS 5 1 0.0 100.0 0.0 492 YES NO NO only_pi YES
Chrome Mobile iOS 37 0 iOS 6 1 0.0 100.0 0.0 386 YES NO YES only_pi YES
Chrome Mobile iOS 47 0 iOS 7 0 0.0 100.0 0.0 227 YES YES NO only_pi YES
Chrome Mobile iOS 43 0 iOS 7 1 0.0 100.0 0.0 202 YES YES NO only_pi YES
Chrome Mobile iOS 45 0 iOS 7 1 0.0 100.0 0.0 105 YES YES NO only_pi YES
Chrome Mobile iOS 47 0 iOS 7 1 0.0 100.0 0.0 1253 YES YES NO only_pi YES
Chrome Mobile iOS 47 0 iOS 8 0 0.0 100.0 0.0 139 YES YES YES only_pi YES
Chrome Mobile iOS 47 0 iOS 8 1 0.11 99.89 0.0 938 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 47 0 iOS 8 2 0.0 100.0 0.0 225 YES YES NO only_pi YES
Chrome Mobile iOS 47 0 iOS 8 3 0.0 100.0 0.0 479 YES YES NO only_pi YES
Chrome Mobile iOS 37 0 iOS 8 4 0.0 100.0 0.0 121 YES YES NO only_pi YES
Chrome Mobile iOS 47 0 iOS 8 4 0.0 100.0 0.0 943 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 9 0 0.0 100.0 0.0 498 YES YES NO only_pi YES
Chrome Mobile iOS 62 0 iOS 9 1 0.0 100.0 0.0 105 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 9 1 0.0 100.0 0.0 390 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 9 2 0.0 100.0 0.0 1178 YES YES NO only_pi YES
Chrome Mobile iOS 43 0 iOS 9 3 0.0 100.0 0.0 122 YES YES NO only_pi YES
Chrome Mobile iOS 44 0 iOS 9 3 0.79 99.21 0.0 126 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 45 0 iOS 9 3 0.0 100.0 0.0 149 YES YES NO only_pi YES
Chrome Mobile iOS 46 0 iOS 9 3 0.0 100.0 0.0 124 YES YES NO only_pi YES
Chrome Mobile iOS 47 0 iOS 9 3 0.0 100.0 0.0 429 YES YES NO only_pi YES
Chrome Mobile iOS 49 0 iOS 9 3 0.0 100.0 0.0 113 YES YES NO only_pi YES
Chrome Mobile iOS 50 0 iOS 9 3 0.0 100.0 0.0 201 YES YES NO only_pi YES
Chrome Mobile iOS 51 0 iOS 9 3 0.0 100.0 0.0 294 YES YES NO only_pi YES
Chrome Mobile iOS 52 0 iOS 9 3 0.0 100.0 0.0 237 YES YES NO only_pi YES
Chrome Mobile iOS 53 0 iOS 9 3 0.0 100.0 0.0 440 YES YES NO only_pi YES
Chrome Mobile iOS 54 0 iOS 9 3 0.0 100.0 0.0 303 YES YES NO only_pi YES
Chrome Mobile iOS 55 0 iOS 9 3 0.22 99.78 0.0 447 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 56 0 iOS 9 3 0.0 100.0 0.0 358 YES YES NO only_pi YES
Chrome Mobile iOS 57 0 iOS 9 3 0.0 100.0 0.0 418 YES YES NO only_pi YES
Chrome Mobile iOS 58 0 iOS 9 3 0.0 100.0 0.0 499 YES YES NO only_pi YES
Chrome Mobile iOS 59 0 iOS 9 3 0.0 100.0 0.0 608 YES YES NO only_pi YES
Chrome Mobile iOS 60 0 iOS 9 3 0.0 100.0 0.0 611 YES YES NO only_pi YES
Chrome Mobile iOS 61 0 iOS 9 3 0.11 99.89 0.0 941 YES YES NO only_pi MOSTLY
Chrome Mobile iOS 62 0 iOS 9 3 0.0 100.0 0.0 1527 YES YES NO only_pi YES
Chrome Mobile iOS 63 0 iOS 9 3 0.0 100.0 0.0 23891 YES YES NO only_pi YES

Analysis

[edit]

Generally the data matches the expected result and where it doesn't the margin of error is usually small.

Expected both

[edit]

This is the easier one to explain.

The ReadingDepth and PageIssues events are sent at different times in the code. There are a variety of factors that could lead to only one being sent. These include

  • client's web connection speed/stability
  • client side error occurring in either page issues or reading depth
  • event could not be decoded
browser major minor os os_major os_minor both only pi only rd all page loads
Chrome Mobile iOS 67 0 iOS 12 0 99.88 0.0 0.12 847
Chrome Mobile iOS 65 0 iOS 11 4 99.83 0.17 0.0 572
Chrome 45 0 Android 4 4 99.67 0.0 0.33 607
Chrome Mobile iOS 61 0 iOS 12 0 99.56 0.0 0.44 225
Chrome 42 0 Android 4 4 99.55 0.0 0.45 220
Chrome Mobile iOS 69 0 iOS 12 0 99.53 0.22 0.26 72292
Chrome Mobile iOS 68 0 iOS 11 3 99.52 0.36 0.12 1682
Chrome 68 0 Mac OS X 10 13 99.47 0.0 0.53 189
Chrome Mobile iOS 66 0 iOS 12 0 99.46 0.54 0.0 373
Chrome 50 0 Android 5 0 99.42 0.0 0.58 686
Chrome 69 0 Mac OS X 10 11 99.41 0.0 0.59 338
Chrome Mobile iOS 66 0 iOS 11 4 99.41 0.24 0.35 846
Chrome Mobile iOS 69 0 iOS 12 1 99.4 0.2 0.4 1008
Chrome Mobile iOS 59 0 iOS 11 4 99.39 0.61 0.0 164
Chrome Mobile iOS 67 0 iOS 11 4 99.38 0.33 0.28 2112
Chrome Mobile iOS 65 0 iOS 11 3 99.37 0.63 0.0 159
Chrome Mobile iOS 69 0 iOS 11 4 99.37 0.32 0.32 49626
Chrome Mobile iOS 68 0 iOS 12 0 99.36 0.24 0.4 6293
Chrome 68 0 Android 8 1 99.32 0.34 0.34 294
Chrome Mobile iOS 67 0 iOS 11 3 99.32 0.68 0.0 438
Chrome Mobile iOS 62 0 iOS 12 0 99.3 0.7 0.0 143
Chrome 51 0 Android 4 1 99.28 0.0 0.72 277
Chrome Mobile iOS 68 0 iOS 11 4 99.28 0.3 0.42 12492
Chrome 46 0 Android 5 0 99.26 0.09 0.64 1087
Chrome 49 0 Android 5 0 99.26 0.37 0.37 269
Chrome 61 0 Android 4 2 99.23 0.0 0.77 391
Chrome Mobile iOS 63 0 iOS 11 4 99.22 0.47 0.31 644
Chrome 50 0 Android 4 2 99.21 0.0 0.79 378
Chrome 52 0 Android 4 2 99.18 0.0 0.82 366
Chrome 69 0 Windows 8.1 NULL 99.17 0.26 0.58 1560
Chrome 47 0 Android 4 1 99.09 0.0 0.91 110
Chrome Mobile iOS 61 0 iOS 11 4 99.09 0.0 0.91 328
Chrome 69 0 Android 8 1 99.08 0.25 0.68 7253
Chrome Mobile iOS 62 0 iOS 11 3 99.03 0.0 0.97 103
Chrome 45 0 Windows 10 NULL 99.02 0.42 0.56 712
Chrome Mobile iOS 64 0 iOS 11 3 99.02 0.0 0.98 102
Chrome 50 0 Android 4 4 98.99 0.07 0.94 1482
Chrome 69 0 Windows 7 NULL 98.96 0.31 0.73 6741
Chrome 51 0 Android 5 1 98.95 0.23 0.81 859
Chrome 67 0 Android 8 0 98.95 0.35 0.7 285
Chrome 66 0 Android 8 1 98.95 0.52 0.52 572
Chrome 69 0 Android 8 0 98.92 0.26 0.82 15848
Chrome Mobile iOS 62 0 iOS 11 4 98.92 0.81 0.27 371
Chrome Mobile iOS 60 0 iOS 11 4 98.88 0.0 1.12 179
Chrome 48 0 Android 4 4 98.87 0.38 0.75 265
Chrome 62 0 Android 5 0 98.86 0.34 0.8 879
Chrome 69 0 Windows 10 NULL 98.86 0.23 0.91 13124
Chrome 69 0 Android 7 0 98.85 0.27 0.88 241138
Chrome Mobile iOS 69 0 iOS 11 3 98.84 0.38 0.78 5521
Chrome Mobile iOS 65 0 iOS 12 0 98.84 0.78 0.39 258
Chrome 52 0 Android 4 4 98.78 0.09 1.12 1068
Chrome 40 0 Android 5 0 98.77 0.18 1.05 10331
Chrome 69 0 Linux NULL NULL 98.77 0.29 0.94 5874
Chrome 66 0 Linux NULL NULL 98.76 0.31 0.93 322
Chrome 46 0 Android 6 0 98.71 0.41 0.88 2712
Chrome 44 0 Android 4 4 98.7 0.43 0.87 230
Chrome 46 0 Android 5 1 98.7 0.58 0.72 2760
Chrome 64 0 Android 8 0 98.68 0.66 0.66 152
Chrome Mobile iOS 66 0 iOS 11 3 98.68 0.79 0.53 380
Chrome 46 0 Android 4 2 98.67 1.33 0.0 150
Chrome 69 0 Android 7 1 98.67 0.21 1.12 96124
Chrome Mobile iOS 63 0 iOS 12 0 98.67 0.44 0.89 450
Chrome 63 0 Android 4 1 98.66 0.0 1.34 149
Chrome 71 0 Android 6 0 98.66 0.67 0.67 149
Chrome 66 0 Android 8 0 98.66 0.3 1.04 2974
Chrome 54 0 Android 4 1 98.64 0.68 0.68 147
Chrome 65 0 Android 7 0 98.64 0.34 1.02 3241
Chrome 61 0 Android 4 4 98.63 0.46 0.91 1749
Chrome 49 0 Android 5 1 98.61 0.17 1.22 576
Chrome 62 0 Android 6 0 98.61 0.31 1.08 1298
Chrome 63 0 Windows 7 NULL 98.61 1.39 0.0 144
Chrome 51 0 Android 4 2 98.59 0.25 1.16 1208
Chrome 56 0 Android 6 0 98.59 0.52 0.9 16974
Chrome 42 0 Android 4 0 98.58 0.38 1.04 2112
Chrome 64 0 Android 7 0 98.58 0.46 0.96 7529
Chrome 65 0 Linux NULL NULL 98.56 0.96 0.48 208
Chrome 49 0 Windows XP NULL 98.55 0.72 0.72 276
Chrome 65 0 Android 4 1 98.54 0.24 1.22 410
Chrome 64 0 Android 4 2 98.54 0.16 1.3 615
Chrome 60 0 Android 4 2 98.51 0.0 1.49 335
Chrome 61 0 Linux NULL NULL 98.51 0.9 0.6 335
Chrome 69 0 Android 4 3 98.5 0.2 1.3 4533
Chrome 43 0 Android 4 4 98.49 0.0 1.51 332
Chrome 42 0 Android 5 0 98.49 0.65 0.86 463
Chrome 50 0 Android 5 1 98.49 0.48 1.03 2707
Chrome 64 0 Android 4 1 98.48 0.0 1.52 197
Chrome Mobile iOS 55 0 iOS 11 4 98.47 0.76 0.76 131
Chrome 60 0 Android 7 0 98.46 0.39 1.16 1814
Chrome 69 0 Android 5 0 98.45 0.18 1.37 88155
Chrome 67 0 Android 4 3 98.44 0.0 1.56 321
Chrome 69 0 Android 5 1 98.44 0.21 1.35 162916
Chrome 68 0 Windows 10 NULL 98.44 1.04 0.52 384
Chrome 69 0 Android 6 0 98.43 0.25 1.32 217506
Chrome 58 0 Android 7 1 98.42 0.29 1.29 696
Chrome 50 0 Android 6 0 98.41 0.55 1.04 5778
Chrome 66 0 Android 7 1 98.41 0.14 1.44 2080
Chrome 51 0 Android 4 4 98.4 0.19 1.41 3699
Chrome 56 0 Android 4 3 98.39 0.0 1.61 124
Chrome 59 0 Android 5 1 98.39 0.25 1.36 1989
Chrome 52 0 Android 5 0 98.38 0.0 1.62 554
Chrome 39 0 Android 5 1 98.36 0.5 1.14 5367
Chrome Mobile iOS 64 0 iOS 11 4 98.35 1.18 0.47 423
Chrome 58 0 Android 4 2 98.34 0.48 1.19 421
Chrome 69 0 Android 4 4 98.34 0.19 1.46 154054
Chrome 63 0 Windows 10 NULL 98.34 0.0 1.66 181
Chrome 59 0 Android 6 0 98.32 0.38 1.3 1310
Chrome 65 0 Android 6 0 98.31 0.32 1.37 5680
Chrome Mobile iOS 64 0 iOS 12 0 98.31 0.56 1.12 178
Chrome 55 0 Android 4 2 98.3 0.17 1.53 587
Chrome 43 0 Android 5 1 98.3 0.94 0.76 19859
Chrome 55 0 Android 7 0 98.3 0.32 1.38 1236
Chrome 59 0 Android 4 1 98.28 0.0 1.72 116
Chrome 60 0 Android 5 0 98.28 0.12 1.6 814
Chrome 47 0 Android 4 4 98.27 0.26 1.47 1565
Chrome 40 0 Android 4 4 98.26 0.76 0.98 8456
Chrome 67 0 Android 6 0 98.25 0.39 1.36 11510
Chrome 52 0 Android 7 0 98.25 0.6 1.16 2850
Chrome 66 0 Android 5 0 98.24 0.18 1.58 3913
Chrome 61 0 Android 6 0 98.23 0.41 1.36 1469
Chrome 47 0 Android 4 2 98.22 0.59 1.19 505
Chrome 69 0 Android 4 2 98.22 0.12 1.66 37003
Chrome 60 0 Android 7 1 98.22 0.32 1.46 2816
Chrome 49 0 Android 4 4 98.21 0.15 1.64 670
Chrome 66 0 Android 7 0 98.21 0.41 1.38 4130
Chrome 61 0 Android 7 0 98.2 0.55 1.25 2553
Chrome 69 0 Android 4 1 98.19 0.16 1.66 8816
Chrome 68 0 Android 7 0 98.17 0.37 1.47 15817
Chrome 63 0 Android 4 2 98.16 0.55 1.29 543
Chrome 50 0 Android 4 1 98.15 0.0 1.85 162
Chrome 43 0 Android 5 0 98.14 0.64 1.21 2636
Chrome 67 0 Android 7 1 98.13 0.34 1.53 3800
Chrome 51 0 Android 5 0 98.11 0.35 1.53 847
Chrome 65 0 Android 5 1 98.11 0.21 1.68 6143
Chrome 65 0 Android 4 2 98.09 0.32 1.59 1254
Chrome 63 0 Android 6 0 98.08 0.59 1.33 2549
Chrome 70 0 Android 4 4 98.07 0.0 1.93 311
Chrome 52 0 Android 5 1 98.05 0.65 1.3 615
Chrome 65 0 Android 4 3 98.04 0.0 1.96 204
Chrome 60 0 Android 6 0 98.03 1.43 0.54 1115
Chrome 66 0 Android 4 1 98.02 0.74 1.23 405
Chrome 46 0 Android 4 4 98.02 0.0 1.98 303
Chrome 66 0 Android 4 2 98.01 0.17 1.82 1209
Chrome 54 0 Android 5 1 98.0 0.13 1.88 800
Chrome 63 0 Android 5 1 98.0 0.21 1.79 2843
Chrome 55 0 Android 5 0 97.99 0.09 1.91 1097
Chrome 51 0 Android 4 3 97.98 0.0 2.02 198
Chrome 51 0 Android 6 0 97.98 0.43 1.59 692
Chrome 58 0 Android 7 0 97.97 0.28 1.74 2465
Chrome 61 0 Android 5 1 97.96 0.37 1.66 1867
Chrome 66 0 Android 4 3 97.95 0.0 2.05 195
Chrome 65 0 Android 8 0 97.95 0.17 1.88 584
Chrome 68 0 Android 7 1 97.93 0.38 1.69 7347
Chrome 60 0 Android 4 4 97.92 0.4 1.68 1489
Chrome 67 0 Android 7 0 97.92 0.32 1.75 8383
Chrome 49 0 Android 6 0 97.9 0.39 1.71 2337
Chrome 64 0 Android 6 0 97.9 0.31 1.8 2946
Chrome 55 0 Android 5 1 97.86 0.73 1.41 1774
Chrome 68 0 Android 4 3 97.83 0.47 1.71 644
Chrome 39 0 Android 5 0 97.81 0.73 1.46 3423
Chrome 55 0 Android 7 1 97.81 0.27 1.92 365
Chrome 65 0 Android 7 1 97.81 0.27 1.92 1875
Chrome 53 0 Android 5 0 97.8 0.79 1.42 635
Chrome 64 0 Android 5 1 97.8 0.78 1.42 2816
Chrome 61 0 Android 5 0 97.78 0.51 1.72 989
Chrome 68 0 Android 4 2 97.77 0.24 1.99 3366
Chrome 62 0 Android 4 4 97.77 0.34 1.89 1483
Chrome 68 0 Android 6 0 97.77 0.34 1.9 19069
Chrome 56 0 Android 7 1 97.77 0.76 1.47 2104
Chrome 59 0 Android 4 2 97.76 0.14 2.1 714
Chrome 66 0 Android 4 4 97.75 0.3 1.95 6396
Chrome 64 0 Android 5 0 97.75 0.29 1.96 1731
Chrome 59 0 Android 7 1 97.75 0.66 1.59 755
Chrome 55 0 Android 4 4 97.74 0.29 1.97 2078
Chrome 63 0 Android 4 4 97.74 0.32 1.94 3098
Chrome 53 0 Android 4 4 97.72 0.38 1.9 1053
Chrome 53 0 Android 4 2 97.71 0.86 1.43 350
Chrome 66 0 Android 5 1 97.71 0.47 1.82 6331
Chrome 67 0 Android 5 1 97.7 0.36 1.94 11862
Chrome 64 0 Android 7 1 97.7 0.35 1.95 2262
Chrome 54 0 Android 4 2 97.69 0.46 1.85 432
Chrome 68 0 Android 4 4 97.69 0.32 2.0 15338
Chrome 41 0 Android 5 0 97.68 0.66 1.66 302
Chrome 64 0 Android 4 3 97.66 0.78 1.56 128
Chrome 47 0 Android 5 0 97.64 0.0 2.36 381
Chrome 67 0 Android 4 2 97.63 0.36 2.01 1945
Chrome 55 0 Android 6 0 97.63 0.61 1.77 5097
Chrome 49 0 Android 4 2 97.61 0.6 1.79 335
Chrome 65 0 Windows 10 NULL 97.61 1.44 0.96 209
Chrome 59 0 Android 5 0 97.56 0.47 1.97 1066
Chrome 66 0 Android 6 0 97.55 0.46 1.99 6570
Chrome 58 0 Android 5 0 97.53 0.34 2.13 1176
Chrome 67 0 Android 4 4 97.52 0.35 2.13 10020
Chrome 67 0 Android 5 0 97.52 0.2 2.28 7338
Chrome 68 0 Android 5 1 97.52 0.43 2.05 18612
Chrome 67 0 Linux NULL NULL 97.52 0.41 2.07 484
Chrome 58 0 Android 6 0 97.51 0.43 2.06 1165
Chrome 56 0 Android 4 2 97.5 0.45 2.05 1120
Chrome 65 0 Android 4 4 97.49 0.64 1.88 5652
Chrome 63 0 Android 7 0 97.49 0.59 1.92 2033
Chrome 64 0 Android 4 4 97.46 0.25 2.29 2755
Chrome 71 0 Android 4 4 97.44 0.64 1.92 156
Chrome 58 0 Android 5 1 97.43 0.68 1.89 2064
Chrome 63 0 Android 7 1 97.42 0.74 1.84 1085
Chrome 62 0 Android 4 2 97.38 0.98 1.64 305
Chrome 68 0 Android 5 0 97.38 0.25 2.37 10364
Chrome 62 0 Android 5 1 97.38 0.77 1.85 2217
Chrome 58 0 Android 4 1 97.37 0.88 1.75 114
Chrome 56 0 Android 4 4 97.36 0.31 2.33 2874
Chrome 63 0 Android 5 0 97.36 0.18 2.45 1630
Chrome 53 0 Android 4 1 97.35 0.0 2.65 113
Chrome 40 0 Windows XP NULL 97.33 1.4 1.26 712
Chrome 61 0 Android 7 1 97.31 1.83 0.85 819
Chrome 57 0 Android 4 4 97.28 0.35 2.36 847
Chrome 40 0 Android 7 0 97.25 0.92 1.83 109
Chrome 52 0 Android 6 0 97.23 1.54 1.23 3830
Chrome 56 0 Android 5 1 97.22 0.43 2.35 1403
Chrome 59 0 Android 4 3 97.2 0.93 1.87 107
Chrome 68 0 Linux NULL NULL 97.16 0.43 2.41 704
Chrome 62 0 Android 7 1 97.11 0.87 2.02 1486
Chrome 53 0 Android 6 0 97.08 1.5 1.43 3010
Android 7 1 Android 7 1 97.05 1.34 1.61 746
Chrome 54 0 Android 5 0 97.01 0.75 2.24 670
Chrome 60 0 Windows 10 NULL 97.01 2.99 0.0 134
Chrome 65 0 Android 5 0 96.97 0.16 2.87 3032
Chrome 58 0 Android 4 4 96.96 0.47 2.57 1905
Chrome 59 0 Android 7 0 96.96 0.95 2.09 1054
Chrome 56 0 Android 7 0 96.94 1.38 1.68 4641
Chrome 69 0 Chrome OS 10895 56 96.92 0.22 2.86 454
Chrome 54 0 Android 4 4 96.91 0.49 2.6 1424
Chrome 67 0 Android 4 1 96.89 0.12 3.0 867
Chrome 59 0 Android 4 4 96.87 0.85 2.28 1885
Chrome 69 0 Mac OS X 10 13 96.86 0.13 3.01 1497
Chrome 56 0 Android 5 0 96.85 0.55 2.6 1271
Chrome 68 0 Android 4 1 96.76 0.47 2.76 1267
Chrome 54 0 Android 6 0 96.68 0.66 2.66 1505
Chrome 70 0 Android 6 0 96.58 0.0 3.42 146
Chrome 60 0 Android 5 1 96.51 1.14 2.35 1405
Chrome 70 0 Android 5 1 96.43 0.6 2.98 168
Chrome 69 0 Mac OS X 10 12 96.29 0.37 3.34 539
Chrome 53 0 Android 5 1 96.22 0.66 3.12 609
Chrome 56 0 Android 4 1 96.17 1.44 2.39 209
Chrome 47 0 Android 5 1 96.17 0.85 2.98 235
Chrome 64 0 Linux NULL NULL 96.13 0.55 3.31 181
Chrome 40 0 Android 6 0 96.11 3.16 0.73 10726
Android 8 0 Android 8 0 96.07 2.66 1.26 4432
Chrome 68 0 Android 8 0 96.07 0.38 3.55 788
Chrome 44 0 Android 6 0 95.96 0.45 3.59 223
Chrome 57 0 Android 4 2 95.89 0.46 3.65 219
Chrome 59 0 Windows 10 NULL 95.61 2.63 1.75 114
Chrome 60 0 Android 4 1 95.56 0.0 4.44 135
Chrome 42 0 Android 5 1 95.53 3.63 0.84 1431
Chrome 68 0 Windows 7 NULL 95.24 3.9 0.87 231
Chrome 57 0 Android 5 1 95.11 3.71 1.18 14629
Chrome 57 0 Android 6 0 95.0 3.74 1.26 11691
Android 8 1 Android 8 1 94.96 3.5 1.54 2143
Chrome 40 0 Android 5 1 94.94 2.78 2.28 395
Chrome 49 0 Windows 7 NULL 94.82 1.55 3.63 193
Chrome 57 0 Android 5 0 94.63 0.23 5.14 428
Chrome 62 0 Android 7 0 94.59 4.3 1.11 3067
Chrome 57 0 Android 8 0 94.55 4.81 0.64 312
Chrome 57 0 Android 7 1 94.35 4.27 1.38 1733
Chrome 57 0 Android 7 0 94.32 4.09 1.59 2325
Chrome 55 0 Android 4 1 94.15 0.53 5.32 188
Chrome 69 0 Mac OS X 10 14 93.93 0.0 6.07 247
Chrome 57 0 Windows XP NULL 93.32 5.42 1.26 1033
Chrome 57 0 Android 8 1 90.52 7.76 1.72 232
Android 7 0 Android 7 0 85.65 12.96 1.38 2962
Android 6 0 Android 6 0 82.85 14.55 2.6 5039
Android 5 0 Android 5 0 61.26 37.67 1.08 1115
Android 5 1 Android 5 1 56.08 42.58 1.34 5824


Expected only_pi

[edit]

These are the most peculiar and not as common.

If a browser has been identified as not supporting ReadingDepth, how could it possibly send ReadingDepth events?

This issue seems limited to Chrome <= 38 on Android 4-7 (sendBeacon was introduced in 38), iOS Chrome prior to 11.3 and the native Android browser.

browser major minor os os_major os_minor both only pi only rd all page loads
Chrome 38 0 Android 5 0 7.86 91.98 0.16 611
Chrome 38 0 Linux NULL NULL 6.69 93.31 0.0 239
Chrome Mobile iOS 61 0 iOS 11 0 2.54 97.46 0.0 473
Chrome 26 0 Android 4 1 2.38 97.62 0.0 126
Chrome 30 0 Android 5 1 1.92 98.08 0.0 313
Chrome 38 0 Android 5 1 1.66 98.34 0.0 301
Chrome 30 0 Android 4 3 0.0 99.02 0.98 102
Android 4 3 Android 4 3 0.94 99.05 0.02 24806
Android 4 4 Android 4 4 0.91 99.06 0.03 102051
Chrome 33 0 Android 4 2 0.82 99.18 0.0 364
Chrome Mobile iOS 44 0 iOS 9 3 0.79 99.21 0.0 126
Chrome Mobile iOS 63 0 iOS 11 2 0.61 99.39 0.0 1467
Chrome 38 0 Android 4 4 0.48 99.52 0.0 413
Chrome Mobile iOS 56 0 iOS 10 3 0.3 99.7 0.0 338
Android 4 2 Android 4 2 0.21 99.78 0.0 202719
Chrome 30 0 Android 4 4 0.22 99.78 0.0 158843
Chrome Mobile iOS 61 0 iOS 10 3 0.22 99.78 0.0 1361
Chrome Mobile iOS 55 0 iOS 9 3 0.22 99.78 0.0 447
Chrome Mobile iOS 47 0 iOS 8 1 0.11 99.89 0.0 938
Chrome Mobile iOS 61 0 iOS 9 3 0.11 99.89 0.0 941
Chrome 36 0 Android 4 4 0.05 99.95 0.0 4165
Chrome 37 0 Android 5 0 0.05 99.95 0.0 36448
Android 4 1 Android 4 1 0.03 99.97 0.0 87482
Chrome Mobile iOS 67 0 iOS 11 2 0.02 99.98 0.0 4320
Chrome Mobile iOS 68 0 iOS 10 3 0.01 99.99 0.0 10996
Chrome Mobile iOS 69 0 iOS 11 0 0.0 99.99 0.01 11171
Chrome 11 0 Linux NULL NULL 31.97 67.81 0.22 1370
Chrome 18 0 Android 4 1 22.55 77.31 0.14 1419
Chrome 30 0 Android 6 0 17.38 82.0 0.62 650
Chrome 30 0 Android 7 0 14.05 85.29 0.65 306

Expected no events, got events

[edit]

This is also strange. If a browser cannot run JavaScript how is it running JavaScript? Android 2 doesn't support strict mode so we shouldn't be seeing any events (https://caniuse.com/#search=use-strict

Android 4 doesn't support ES5 in strict mode. Yet strangely, we're seeing events here.

It would be great to get more information about the capabilities of these browsers and make sure they get excluded from ResourceLoader.

Please ignore these in any data analysis. They cannot be trusted.

browser major minor os os_major os_minor both only pi only rd all page loads
Android 2 3 Android 2 3 38.57 60.95 0.48 210
Android 2 0 Android 2 0 10.63 89.37 0.0 207
Android 4 0 Android 4 0 9.78 90.11 0.1 34531

Notes

[edit]
  • * assumes that iOS versions match Chrome versions.
  1. ↑ JS is disabled according to the following code:https://github.com/wikimedia/mediawiki/blob/master/resources/src/startup/startup.js#L52 This makes use of https://caniuse.com/#feat=es5 https://caniuse.com/#feat=use-strict https://caniuse.com/#feat=json https://caniuse.com/#feat=queryselector https://caniuse.com/#search=localStorage https://caniuse.com/#search=addEventListener
  2. ↑ In iOS 8.1 NavigationTiming support was removed https://github.com/addyosmani/timing.js/issues/9 There are no references about whether Chrome on iOS was able to make use of this. This document suggests it was added back in 9, but this doesn't agree with our data, which clearly points to support being re-added in iOS 11.3 http://blog.catchpoint.com/2015/06/11/navigation-timing-back-safari/
  3. ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 3.21 3.22 3.23 3.24 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 From our data one can probably assume NavigationTiming support was re-added in iOS 11.3
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