Atom Syndication Format is an XML language used for web feeds very similar to RSS.
https://en.wikipedia.org/wiki/Atom_%28standard%29
Syndication Techniques
Get access to data on 9,391,746 websites that are Atom Customers. We know of 2,524,974 live websites using Atom and an additional 6,866,772 sites that used Atom historically and 1,178,327 websites in the United States.
Get a list of 9,391,746 websites using Atom which includes location information, hosting data, contact details, 2,524,974 currently live websites and an additional 1,774,246 domains that redirect to sites in this list. 6,866,772 sites that used this technology previouslyand 1,178,327 websites in the United States currently using Atom.
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