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.
Czech Server Location Usage Statistics · Download List of All Websites using Czech Server Location
The web server is located in Czech Republic.
Server Location
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 3rd May 2024. We know of 3 technologies on this page and 17 technologies removed from czechcoal.cz since 3rd January 2011. Link to this page.
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