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Segmentation

Technologies > Site Elements > ETag > Strong ETag > by Email Servers

Usage of Strong ETag broken down by email server providers

This diagram shows the percentages of websites using Strong ETag broken down by email server providers. See technologies overview for explanations on the methodologies used in the surveys.

How to read the diagram:
Strong ETag is used by 14.9% of all the websites.
Strong ETag is used by 17.5% of all the websites that use Gmail as email server provider.

Overall
14.9%
Gmail
17.5%
Microsoft
14.2%
United Internet
11.9%
W3Techs.com, 9 June 2025
Percentages of websites using Strong ETag broken down by email server providers

More detailed statistics

You can find ranking and market share data for site elements within websites using any of the 606 email server providers in our email server providers market report.

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Technology Brief
Strong ETag
Category: Site Elements
A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.
Website: w3.org/...


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