CORS Usage Statistics

Websites using CORS

Top 10k
Top 100k
Top 1m

Quantcast Top 10k
794 of 10,000


Quantcast Top 100k
5,467 of 100,000


BuiltWith Top Million
33,201 of 966,084


Entire Internet
1,311,880 of 374,464,322


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The Cross-Origin Resource Sharing (CORS) mechanism gives web servers cross-domain access controls, which enable secure cross-domain data transfers. Access Control Allow Origin.

Categories: Document Standards


Top 10,000 Sites
Top 100,000 Sites
Top 1 Million Sites

This chart shows the amount of websites within the top 10k, 100k, and 1 million sites groups that are categorized as being in the specific vertical.

We know of 1,311,880 live websites using CORS in our records.

View Website List

Get a list of websites using CORS

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Browse groups of technologies that we track.