Varnish version 4.x
https://varnish-cache.org/
Web Servers · Varnish Server
Get access to data on 231,649 websites that are Varnish 4.x Customers. We know of 71,694 live websites using Varnish 4.x and an additional 159,955 sites that used Varnish 4.x historically and 20,956 websites in the United States.
Get a list of 231,649 websites using Varnish 4.x which includes location information, hosting data, contact details, 71,694 currently live websites and an additional 36,298 domains that redirect to sites in this list. 159,955 sites that used this technology previouslyand 20,956 websites in the United States currently using Varnish 4.x.
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