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.
Apple iCloud Mail Usage Statistics · Download List of All Websites using Apple iCloud Mail
Webmail service provided by Apple.
Sender ID Usage Statistics · Download List of All Websites using Sender ID
Sender ID is an anti-spoofing email framework heavily based on SPF.
DNSSEC Usage Statistics · Download List of All Websites using DNSSEC
DNSSEC strengthens DNS authentication by using digital signatures based on public key cryptography.
Last technology detected on 10th May 2025. We know of 4 technologies on this page and 6 technologies removed from rydell.eu since 12th January 2019. Link to this page.
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