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.
DMARC Usage Statistics · Download List of All Websites using DMARC
A technical specification created by a group of organizations that want to help reduce the potential for email-based abuse
DMARC
1and1 Usage Statistics · Download List of All Websites using 1and1
1&1 internet packaged hosting, mail and eCommerce solutions owned by United Internet and incorporating Schlund and Partners.
UK hosting
Cloudflare DNS Usage Statistics · Download List of All Websites using Cloudflare DNS
DNS services provided by Cloudflare.
Last technology detected on 22nd July 2025. We know of 4 technologies on this page and 3 technologies removed from dostech.net since 25th August 2019. Link to this page.
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