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.
Hetzner Usage Statistics · Download List of All Websites using Hetzner
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Dedicated Hosting · German hosting
Last technology detected on 16th July 2025. We know of 2 technologies on this page and 14 technologies removed from heyra.is since 2nd July 2018. Link to this page.
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