DNS Report: gitbook.com

Generated: 2026-08-09T01:20:13-05:00

90/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/302 IPv4 address(es) detected.
OKIPv6 (AAAA)10/102 IPv6 address(es) detected.
OKName server redundancy20/202 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
OKDNSSEC chain15/15DS and DNSKEY detected.
OKCAA policy5/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/205 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
OKDKIM20/20A DKIM selector was verified.
OKMTA-STS5/5Mail transport policy.
OKTLS-RPT5/5TLS reporting policy.
OKValid TLS certificate55/5586 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
OKIPv6 connectivity35/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/2 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
104.18.41.89
172.64.146.167
AAAA
2a06:98c1:3105::ac40:92a7
2606:4700:4403::6812:2959
CNAME
MX
1 aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
TXT
"MS=ms60660329"
"google-site-verification=YEfVo29t-jyIdELW1-F_B1XQZBsknBgjKdvVXYsBaXc"
"v=spf1 a mx include:_spf.google.com include:sendgrid.net include:stspg-customer.com include:helpscoutemail.com -all"
"google-site-verification=ojxGhAwymkbkr39GFI8VBvWzC9THYX6WQABf9Q9-qyY"
"google-site-verification=vjg2Tbif0nJQ-Kto4AwyZ5VnSSy6tHvD6vnJ0c5uMvk"
"firebase=gitbook-28427"
"google-site-verification=-MPeja1woOvE2Hs6BcUDgkCeYG9ZaAaCPqEyCMyXYLo"
"google-site-verification=XTowlLW9jzAGRzz5Y7FkWT7IbJhWFjJuHwj0ex0vI38"
"1eimfvl6smqf32ddsbrt935qqq"
"5c89abfus0pgntcdrib3m156gp"
"openai-domain-verification=dv-LB8QOARyXE6YrjhX64RDyf8U"
NS
dahlia.ns.cloudflare.com.
hugh.ns.cloudflare.com.
SOA
dahlia.ns.cloudflare.com. dns.cloudflare.com. 2411413980 10000 2400 604800 1800
CAA
0 issuewild "letsencrypt.org"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issuewild "comodoca.com"
0 issue "letsencrypt.org"
0 issue "ssl.com"
0 issue "comodoca.com"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issuewild "ssl.com"
0 issuewild "digicert.com; cansignhttpexchanges=yes"
DS
2371 13 2 0906D0190440631DDEAC71ECAE476F9122017E735839CECF6610DB66 049EF5E4
DNSKEY
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==
RRSIG
NSEC
\000.gitbook.com. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA
NSEC3
SRV
NAPTR
TLSA
SSHFP