Web Hosting Lookup
Operational from May 6, 2025 -
Security Header Tool -
Insight at janwillemstegink.nl IPv4 without www IPv6 without www IPv4 with www IPv6 with www Start of Authority +/- Start of Authority +/- Start of Authority +/- Start of Authority +/- Nameservers +/- Nameservers +/- Nameservers +/- Nameservers +/- Autonomous System +/- Autonomous System +/- Autonomous System +/- Autonomous System +/- [ANAME] +/- [ANAME] +/- [ANAME] +/- [ANAME] +/- CNAME +/- CNAME +/- CNAME +/- CNAME +/- A +/- A +/- A +/- A +/- AAAA +/- AAAA +/- AAAA +/- AAAA +/- • Reverse DNS should identify the responsible infrastructure, supporting effective operational communication with the responsible operator, while remaining a common operational requirement for email services. rDNS +/- rDNS +/- rDNS +/- rDNS +/- FCrDNS +/- FCrDNS +/- FCrDNS +/- FCrDNS +/- HINFO +/- HINFO +/- HINFO +/- HINFO +/- CAA higher +/- CAA higher +/- CAA higher +/- CAA higher +/- CAA +/- CAA +/- CAA +/- CAA +/- MX +/- MX +/- MX +/- MX +/- MX lookup +/- MX lookup +/- MX lookup +/- MX lookup +/- DMARC CNAME higher +/- DMARC CNAME higher +/- DMARC CNAME higher +/- DMARC CNAME higher +/- DMARC TXT higher +/- DMARC TXT higher +/- DMARC TXT higher +/- DMARC TXT higher +/- DMARC CNAME +/- DMARC CNAME +/- DMARC CNAME +/- DMARC CNAME +/- DMARC TXT +/- DMARC TXT +/- DMARC TXT +/- DMARC TXT +/- SPF TXT +/- SPF TXT +/- SPF TXT +/- SPF TXT +/- TXT +/- TXT +/- TXT +/- TXT +/- TLSA _25._tcp +/- TLSA _25._tcp +/- TLSA _25._tcp +/- TLSA _25._tcp +/- TLSA _25._udp +/- TLSA _25._udp +/- TLSA _25._udp +/- TLSA _25._udp +/- TLSA _25._sctp +/- TLSA _25._sctp +/- TLSA _25._sctp +/- TLSA _25._sctp +/- TLSA _25._quic +/- TLSA _25._quic +/- TLSA _25._quic +/- TLSA _25._quic +/- TLSA _443._tcp +/- TLSA _443._tcp +/- TLSA _443._tcp +/- TLSA _443._tcp +/- SSL raw +/- SSL raw +/- SSL raw +/- SSL raw +/- SSL +/- SSL +/- SSL +/- SSL +/- robots.txt url +/- robots.txt url +/- robots.txt url +/- robots.txt url +/- robots.txt +/- robots.txt +/- robots.txt +/- robots.txt +/- meta tags +/- meta tags +/- meta tags +/- meta tags +/- legacy security.txt +/- legacy security.txt +/- legacy security.txt +/- legacy security.txt +/- .well-known/security.txt +/- .well-known/security.txt +/- .well-known/security.txt +/- .well-known/security.txt +/- HSTS header +/- HSTS header +/- HSTS header +/- HSTS header +/- HTTP headers +/- HTTP headers +/- HTTP headers +/- HTTP headers +/- transfer information +/- transfer information +/- transfer information +/- transfer information +/-