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.
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 11th October 2024. We know of 2 technologies on this page and 11 technologies removed from holder.com.br since 15th September 2013. Link to this page.
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