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11,322 sitesUnited Kingdom

Average web page size in the UK

HTML size, scripts, third parties and image formats of homepages.

49%
Lazy-loaded images
5,575 / 11,322
24%
WebP/AVIF images
2,710 / 11,322
39%
Preconnect hints
4,457 / 11,322
1.4%
Mixed content
158 / 11,322

Medians and spread

MetricP10P25MedianP75P90Sites
HTML size21 KB52 KB122 KB298 KB611 KB11,288
Scripts4817397111,288
External scripts138163111,288
Third-party domains0135711,288
Stylesheets12381911,288
Images17245310411,288
DOM nodes1724717711,4192,45711,288
Words3378181,6043,8087,85511,288

Homepage HTML size

12%≤ 25
12%26–50
20%51–100
20%101–200
18%201–400
11%401–800
4.8%801–1,500
1.9%> 1,500

KB · Share of 11,322 sites in the sample.

By market

MetricUnited KingdomGlobalNetherlandsItalySpainJapanLatin America
Lazy-loaded images 49%46%49%51%53%30%51%
WebP/AVIF images 24%24%23%26%25%18%31%
Preconnect hints 39%35%36%34%34%28%37%
ES modules 40%32%37%34%31%18%38%
Mixed content 1.4%1.2%0.6%2.3%1.8%2.3%2.5%
No compression 7.7%10%7.8%8.5%9.7%35%12%

Our crawler: 11,322 sites · United Kingdom · updated 13 Nov 2026 · Methodology

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