<🧵>1/26
GOV.UK stats for December‡ (1-31):
- Chrome - 49.31%
- Safari - 31.09%
- Edge - 11.3%
- Samsung Internet - 4.67%
- Firefox - 1.3%
- Android Webview - 0.75%
- Safari (in-app) - 0.68%
- Opera - 0.27%
100% = 77,255,399
#browser #browserstats 2/26
‡ Note: since December 2019 GOV.UK requires explicit opt-in for tracking which introduces bias. This is especially true for mobile devices, since the cookie banner takes up more screen estate and is more likely to be accepted.

<🧵> GOV.UK stats for April‡ (1-30):
- Chrome - 47.62%
- Safari - 33.62%
- Edge - 9.08%
- Samsung Internet - 6.01%
- Firefox - 1.38%
- Android Webview - 0.65%
- Internet Explorer - 0.58%
- Safari (in-app) - 0.56%
100% = 118,055,607
#browser #browserstats ‡ Note: since December 2019 GOV.UK requires explicit opt-in for tracking which introduces bias. This is especially true for mobile devices, since the cookie banner takes up more screen estate and is more likely to be accepted.

🧵GOV.UK stats for March‡ (1-30):
- Chrome - 46.73%
- Safari - 35.02%
- Edge - 8.42%
- Samsung Internet - 6.04%
- Firefox - 1.37%
- Android Webview - 0.69%
- Safari (in-app) - 0.63%
- Internet Explorer - 0.62%

100% = 143,123,441
#browser #browserstats ‡ Note: since December 2019 GOV.UK requires explicit opt-in for tracking which introduces bias. This is especially true for mobile devices, since the cookie banner takes up more screen estate and is more likely to be accepted.

🧵As I mentioned last week GOV.UK removed jQuery as a dependency for all frontend apps, meaning 32 KB of minified & compressed JS was removed. So let's see what difference this has made for users by examining our RUM data. Thread will mainly focus on JS CPU time. A good place to start is users on low spec devices. The Universal Credit sign-in page shows a lot of this traffic, as seen in the images below.

🧵GOV.UK stats for May (1-31st):
• Chrome - 48.18%
• Safari - 32.61%
• Samsung Internet - 6.91% 
• Edge - 6.85%
• IE - 1.61%
• Firefox - 1.59%
• Android Webview - 1.01%
• Safari (in-app) - 0.67%

100% = 137,904,962 sessions
#browser #browserstats "Users" (GA definition)
• Safari - 43.40%
• Chrome - 38.73%
• Edge - 5.69%
• Samsung Internet - 5.38%
• Android Webview - 1.79%
• Safari (in-app) - 1.55%
• IE - 1.47%
• Firefox - 1.41%
• Amazon Silk - 0.30%

100% = 48,239,992 "users"

GOV.UK stats thread for Jan (1-31st):
• Chrome - 47.06%
• Safari - 31.46%
• Samsung Internet - 7.62% 
• Edge - 6.49%
• IE - 2.34%
• Firefox - 1.75%
• Android Webview - 1.49%
• Safari (in-app) - 1.18%

100% = 166,134,602 sessions
#browserstats

1/22 "Users" (GA definition)
• Safari - 41.76%
• Chrome - 37.29%
• Samsung Internet - 6.13%
• Edge - 5.18%
• Safari (in-app) - 2.76%
• Android Webview - 2.74%
• IE - 2.06%
• Firefox - 1.46%

100% = 56,472,455 "users"

2/22

All fairly calm at the moment. 77% mobile already... As always happens the number of users drops as the announcement starts...

GOV.UK stats for Dec (1-31st):
• Chrome - 46.05%
• Safari - 33.82%
• Samsung Internet - 8.01% 
• Edge - 5.14%
• IE - 2.13%
• Firefox - 1.57%
• Android Webview - 1.46%
• Safari (in-app) - 1.24%

100% = 157,177,824 sessions
#browser #browserstats "Users" (GA definition)
• Safari - 43.36%
• Chrome - 36.46%
• Samsung Internet - 6.41%
• Edge - 4.34%
• Safari (in-app) - 2.87%
• Android Webview - 2.68%
• IE - 1.88%
• Firefox - 1.38%

100% = 54,657,965 "users"

GOV.UK stats for Sept (1-30th):
• Safari - 40.30%
• Chrome - 38.11%
• Samsung Internet - 6.43%
• Edge - 4.74%
• Safari (in-app) - 2.86%
• IE - 2.76%
• Android Webview - 2.49%
• Firefox - 1.59%

100% = 45,334,383 "users" (GA definition)
#browserstats

1/8 Browser inc OS version:
• Safari (iOS) - 35.94%
• Chrome (And) - 20.62%
• Chrome (Win) - 13.18%
• Samsung Internet (And) - 6.42%
• Edge (Win) - 4.73%
• Safari (Mac) - 4.30%
• Safari (in-app iOS) - 2.86%

2/8

GOV.UK stats for August (1-31st):
• Safari - 41.15%
• Chrome - 37.83%
• Samsung Internet - 5.73%
• Edge - 4.65%
• Safari (in-app) - 3.03%
• IE - 2.71%
• Android Webview - 2.44%
• Firefox - 1.65%

100% = 44,505,324 "users" (GA definition)
#browserstats Browser inc OS version:
• Safari (iOS) - 36.32%
• Chrome (And) - 20.41%
• Chrome (Win) - 13.00%
• Samsung Internet (And) - 5.73%
• Safari (Mac) - 4.70%
• Edge (Win) - 4.65%
• Safari (in-app iOS) - 3.04%

GOV.UK stats for July (1-31st):
• Safari - 38.67%
• Chrome - 38.18%
• Samsung Internet - 5.74%
• Edge - 4.74%
• Safari (in-app) - 3.91%
• IE - 3.17%
• Android Webview - 2.95%
• Firefox - 1.68%

100% = 43,850,224 "users" (GA definition)
#browserstats Browser inc OS version:
• Safari (iOS) - 34.24%
• Chrome (And) - 20.23%
• Chrome (Win) - 13.41%
• Samsung Internet (And) - 5.72%
• Edge (Win) - 4.72%
• Safari (Mac) - 4.61%
• Safari (in-app iOS) - 3.90%

GOV.UK stats for June(1-30):
• Chrome - 39.03%
• Safari - 38.21%
• Samsung Internet - 5.86%
• Edge - 5.33%
• IE - 3.61%
• Safari (in-app) - 2.82%
• Android Webview - 2.29%
• Firefox - 1.83%

100% = 38,316,840 "users" (GA definition)
#browser #browserstats Browser inc OS version:
• Safari (iOS) - 33.30%
• Chrome (And) - 20.54%
• Chrome (Win) - 14.24%
• Samsung Internet (And) - 5.79%
• Edge (Win) - 5.27%
• Safari (Mac) - 4.83%
• IE (Win) - 3.58%

Great to see some fantastic #webperf work happening on GOV.UK at the moment. The team have been gradually removing the shard domain for critical assets, and it's made quite a difference! Images from Chrome on a 3G connection and S4 on 3G. 1/4 Considering where we were at the start of Feb: HTTP/1.1, SRI, shard domain, ~13 TCP connections. Now down to just 1 TCP connection in many cases. 2/4

Haven't published GOV.UK browser stats since the change to analytics tracking in Dec (opt-in only). Look to be getting ~30-40% of traffic we were before the change.

So what have Feb / Mar looked like with since the coronavirus outbreak?

Thread... Browser stats (Feb):
• Chrome - 40.32%
• Safari - 38.40%
• Samsung Internet - 5.51%
• Edge - 5.01%
• IE - 4.33%
• Safari (in-app) - 2.12%
• Firefox - 1.95%
• Android Webview - 1.62%

100% = 26,057,373 "users" (GA definition)

If anyone's MOT is due before the 31st March and their MOT appointment has been cancelled, see the guidance here: gov.uk/guidance/coron…

#MOT Clarification on this. It's for Lorries, Buses and trailers only:

"The Department for Transport is keeping MOT testing for cars, motorcycles and light vans under review. Check back for updates."

I interpreted the sub-heading as a stand alone section of text: 'Any vehicle'.

GOV.UK stats for the month of Nov.
• Chrome - 39.75%
• Safari - 34.50%
• IE - 5.65%
• Safari (in-app) - 5.11%
• Edge - 4.97%
• Samsung Internet - 3.71%
• Android Webview - 3.23%
• Firefox - 2.18%

100% = 61,372,265 "users" (GA definition)

#browserstats Top 5 Chrome browser versions:
• 78.0.3904.108 - 21.25%
• 78.0.3904.97 - 15.17%
• 78.0.3904.96 - 11.26%
• 78.0.3904.87 - 7.95%
• 78.0.3904.90 - 5.80%

100% = 24,496,423 "users" (GA definition)

GOV.UK stats for October:
• Chrome - 41.37%
• Safari - 35.34%
• IE - 6.76%
• Edge - 5.35%
• Samsung Internet - 3.87%
• Firefox - 2.31%
• Safari (in-app) - 2.23%
• Android Webview - 1.90%
• TOR browser - 0.016%
100% = 60,491,921 "users"
1/14 #browserstats Top 5 Chrome browser versions:
• 77.0.3865.90 - 19.88%
• 77.0.3865.120 - 17.45%
• 77.0.3865.116 - 14.50%
• 77.0.3865.92 - 12.37%
• 78.0.3904.62 - 5.29%

100% = 25,078,191 "users" (GA definition)
2/14

GOV.UK browser stats for Sept:
• Chrome - 41.65%
• Safari - 35.62%
• IE - 6.89%
• Edge - 5.17%
• Samsung Internet - 3.99%
• Firefox - 2.40%
• Safari (in-app) - 1.72%
• Android Webview - 1.61%
• TOR - 0.043%

100% = 58,983,052 "users" (GA definition) Top 5 Chrome browser versions:
• 76.0.3809.132 - 44.02%
• 77.0.3865.90 - 9.66%
• 77.0.3865.92 - 9.25%
• 77.0.3865.73 - 5.07%
• 77.0.3835.0 - 4.36%

100% = 24,390,038 "users" (GA definition)

GOV.UK stats for August:
• Chrome - 42.52%
• Safari - 35.78%
• IE - 6.91%
• Edge - 5.03%
• Samsung Internet - 4.00%
• Firefox - 2.46%
• Safari (in-app) - 1.16%
• Android Webview - 1.13%
• TOR - 0.06%

100% = 53,404,471 "users" (GA def)
#browserstats
1/13 Top 5 Chrome browser versions:
• 76.0.3809.100 - 21.94%
• 76.0.3809.111 - 14.10%
• 75.0.3770.142 - 11.60%
• 76.0.3809.89 - 9.71%
• 76.0.3809.132 - 7.57%

100% = 22,766,636 "users" (GA definition)

2/13

So I finished @tunetheweb's book "HTTP/2 in Action" yesterday. A real tome of a book that teaches you all the intricate details of the new protocol (plus much much more).

For anyone interested in how HTTP works (and networks in general) it's a must-read. One of many key learnings for me:
• HTTP/1.1 has Head-of-line blocking (HOL blocking) do to the synchronous nature of HTTP.
• HTTP/2 removes HOL blocking from the HTTP level, but it is still present in the TCP level.
• ...continued below...

GOV.UK stats for the month of July:
• Chrome - 41.92%
• Safari - 35.16%
• IE - 7.76%
• Edge - 5.20%
• SI - 3.98%
• FF - 2.60%
• Android Webview - 1.16%
• Safari (in-app) - 1.16%
• TOR: 0.31%

100% = 55,249,505 users (GA definition)

1/12 #browserstats Top 5 Chrome browser versions:
• 75.0.3770.100 - 22.70%
• 75.0.3770.142 - 18.19%
• 75.0.3770.101 - 17.77%
• 75.0.3770.143 - 12.60%
• 77.0.3835.0 - 4.22%

100% = 22,901,762 "users" (GA definition)

2/12