gitbook.com
Observed 2026-07-13T00:04:14.352033505+00:00 (13h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Registered withCloudflare, Inc.
Also usesGoogle Search Console
DNSSEC on · IPv6 · api_docs
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat gitbook.com actually stands on - every host below is a signed observation
gitbook.com
A / AAAA
104.18.41.89172.64.146.1672606:4700:4403::6812:29592a06:98c1:3105::ac40:92a7
Cloudflareserves the site
NS
hugh.ns.cloudflare.comdahlia.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
gitbook.com
Google Trust Servicesissued its certificate
DNS Records
A 2
104.18.41.89172.64.146.167
AAAA 2
2606:4700:4403::6812:29592a06:98c1:3105::ac40:92a7
MX 5
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com
TXT 13
MS=ms60660329firebase=gitbook-284271eimfvl6smqf32ddsbrt935qqq5c89abfus0pgntcdrib3m156gpopenai-domain-verification=dv-LB8QOARyXE6YrjhX64RDyf8Ugoogle-site-verification=-MPeja1woOvE2Hs6BcUDgkCeYG9ZaAaCPqEyCMyXYLogoogle-site-verification=XTowlLW9jzAGRzz5Y7FkWT7IbJhWFjJuHwj0ex0vI38google-site-verification=YEfVo29t-jyIdELW1-F_B1XQZBsknBgjKdvVXYsBaXcgoogle-site-verification=ojxGhAwymkbkr39GFI8VBvWzC9THYX6WQABf9Q9-qyYgoogle-site-verification=vjg2Tbif0nJQ-Kto4AwyZ5VnSSy6tHvD6vnJ0c5uMvk
NS 2
hugh.ns.cloudflare.comdahlia.ns.cloudflare.com
SOA 1
dahlia.ns.cloudflare.com dns.cloudflare.com
CAA 10
issue "comodoca.com"issue "digicert.com; cansignhttpexchanges=yes"issue "letsencrypt.org"issue "pki.goog; cansignhttpexchanges=yes"issue "ssl.com"issuewild "comodoca.com"issuewild "digicert.com; cansignhttpexchanges=yes"issuewild "letsencrypt.org"issuewild "pki.goog; cansignhttpexchanges=yes"issuewild "ssl.com"
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
gitbook.com |
C=US, O=Google Trust Services, CN=WE1 | Sat, 05 Sep 2026 09:46:02 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +0000 |
Subdomains (1)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
3944d533-2fb7-40de-be0e-fea8a5a81cee- Output Hash
04582225e205a85bbfd61f8918d8350624390bcad2a53f779e15a951262699c9- Signature
ed25519:b967975f944b996f0dde56a956aa7a0439aa53ce4289a9ed442c44083c4454fcd778c1d84387ecba0b99321e098e6a7972f97e3c921d04b8fcef25508fd6fe00- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast