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SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

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nginx Usage Statistics · Download List of All Websites using nginx

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.

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Last technology detected on 6th August 2025. We know of 17 technologies on this page and 15 technologies removed from cbflabs.com since 6th November 2011. Link to this page.

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