90%
lang attribute
10,683 / 11,871
93%
Mobile viewport
11,028 / 11,871
2.4%
Accessibility overlay
282 / 11,909
60%
Exactly one H1
7,100 / 11,871
Accessibility overlays All
By market
| Metric | United Kingdom | Global | Netherlands | Italy | Spain | Japan | Latin America |
|---|---|---|---|---|---|---|---|
| lang attribute | 90% | 86% | 91% | 91% | 92% | 86% | 89% |
| Mobile viewport | 93% | 91% | 93% | 92% | 94% | 84% | 93% |
| Exactly one H1 | 60% | 54% | 58% | 50% | 58% | 58% | 44% |
| Accessibility overlay | 2.4% | 1.2% | 0.2% | 1.3% | 0.6% | <0.1% | 1.3% |
Page languages
- 1English89%10,508
- 2Vietnamese0.3%31
- 3Arabic0.2%24
- 4Indonesian0.2%23
- 5Russian0.2%22
- 6Chinese<0.1%11
- 7German<0.1%9
- 8Estonian<0.1%7
- 9gb<0.1%7
- 10French<0.1%7
Share of 11,871 sites in the sample.
Our crawler: 11,909 sites · United Kingdom · updated 23 Oct 2026 · Methodology
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