webtelemetry.dev
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Technology · Third-party services

Extend

Not part of a site's own stack, so it is counted separately from what sites are built with.

Websites24working, as of their last visit
Found this week24first seen in the last 7 days
New launches0domains registered in the last 30 days
Over time

New websites using Extend, per day

Websites first seen each day. The line starts on the first day of data.

Not enough history yet: trends appear once there are at least two days of data.

Cite

Cite this figure

webtelemetry.dev. (2026). New websites using Extend, per day [Data set]. Retrieved September 28, 2026, from https://webtelemetry.dev/tech/extend#fig-new-websites-using-extend-per-day

Figures as of 28 September 2026, 23:48 UTC. They change as new sites are checked, so keep the date with them. Link to this figure

Hosting

Where they are hosted

United States 4
Server country. Sites behind a CDN have no single location
Cite

Cite this figure

webtelemetry.dev. (2026). Where they are hosted [Data set]. Retrieved September 28, 2026, from https://webtelemetry.dev/tech/extend#fig-where-they-are-hosted

Figures as of 28 September 2026, 23:48 UTC. They change as new sites are checked, so keep the date with them. Link to this figure

Stack

Often used alongside Extend

Cloudflare 100.0%
Klaviyo 83.3%
Shopify 75.0%
Apple Pay 70.8%
Let's Encrypt 70.8%
Venmo 41.7%
Google Font API 41.7%
Google Workspace 41.7%
Microsoft Clarity 41.7%
jQuery 33.3%
Share of these websites that also use each, from a sample of up to 200,000 sites
Cite

Cite this figure

webtelemetry.dev. (2026). Often used alongside Extend [Data set]. Retrieved September 28, 2026, from https://webtelemetry.dev/tech/extend#fig-often-used-alongside-extend

Figures as of 28 September 2026, 23:48 UTC. They change as new sites are checked, so keep the date with them. Link to this figure

Recently seen websites using Extend