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
DMARC None Usage Statistics · Download List of All Websites using DMARC None
The domain has a DMARC policy of 'None'. A policy of 'none' means this DMARC record will not affect the delivery of email, but it will provide reports on where your outbound email appears to be coming from.
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.
Apache Usage Statistics · Download List of All Websites using Apache
Apache has been the most popular web server on the Internet since April 1996.
Apache 2.4 Usage Statistics · Download List of All Websites using Apache 2.4
Apache version 2.4.*
IPv6 Usage Statistics · Download List of All Websites using IPv6
The website has an IPv6 record.
Ubuntu Usage Statistics · Download List of All Websites using Ubuntu
Ubuntu is a free, Debian derived Linux-based operating system, available with both community and professional support.
Last technology detected on 23rd March 2025. We know of 9 technologies on this page and 13 technologies removed from sex4.cz since 17th September 2014. Link to this page.
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