gitbook.com
The knowledge layer for AI | GitBook
gitbook.com is registered with Cloudflare, Inc. since June 13, 2014 (12.4 years). The registration expires on June 13, 2030. The site runs on Framer, Google Ads, LinkedIn Insight Tag and 8 other technologies. Its email security grade is B. Its SSL certificate is issued by Google Trust Services and is valid for 52 more days.
- Domain age
- 12.4 yrs
- Technologies
- 11
- Email security
- B
- SSL days left
- 52
Registration
| Registrar | Cloudflare, Inc. |
|---|---|
| IANA ID | 1910 |
| Registered | June 13, 2014 |
| Expires | June 13, 2030 |
| Updated | October 19, 2025 |
| Status | client transfer prohibited |
| Name servers | dahlia.ns.cloudflare.com, hugh.ns.cloudflare.com |
| DNSSEC | Signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 104.18.41.89 | 300 |
| A | 172.64.146.167 | 300 |
| MX | aspmx.l.google.com 1 | 300 |
| MX | alt1.aspmx.l.google.com 5 | 300 |
| MX | alt2.aspmx.l.google.com 5 | 300 |
| MX | alt3.aspmx.l.google.com 10 | 300 |
| MX | alt4.aspmx.l.google.com 10 | 300 |
| NS | hugh.ns.cloudflare.com | 86400 |
| NS | dahlia.ns.cloudflare.com | 86400 |
| CAA | issue 0 comodoca.com | 3600 |
| CAA | issue 0 digicert.com; cansignhttpexchanges=yes | 3600 |
| CAA | issue 0 letsencrypt.org | 3600 |
| CAA | issue 0 pki.goog; cansignhttpexchanges=yes | 3600 |
| CAA | issue 0 ssl.com | 3600 |
| CAA | issuewild 0 comodoca.com | 3600 |
| CAA | issuewild 0 digicert.com; cansignhttpexchanges=yes | 3600 |
| CAA | issuewild 0 letsencrypt.org | 3600 |
| CAA | issuewild 0 pki.goog; cansignhttpexchanges=yes | 3600 |
| CAA | issuewild 0 ssl.com | 3600 |
| TXT | MS=ms60660329 | 300 |
| TXT | firebase=gitbook-28427 | 300 |
| TXT | 1eimfvl6smqf32ddsbrt935qqq | 300 |
| TXT | 5c89abfus0pgntcdrib3m156gp | 300 |
| TXT | apple-domain-verification=sLuepreK1XSMZmGO | 300 |
| TXT | openai-domain-verification=dv-LB8QOARyXE6YrjhX64RDyf8U | 300 |
| TXT | google-site-verification=-MPeja1woOvE2Hs6BcUDgkCeYG9ZaAaCPqEyCMyXYLo | 300 |
| TXT | google-site-verification=XTowlLW9jzAGRzz5Y7FkWT7IbJhWFjJuHwj0ex0vI38 | 300 |
| TXT | google-site-verification=YEfVo29t-jyIdELW1-F_B1XQZBsknBgjKdvVXYsBaXc | 300 |
| TXT | google-site-verification=ojxGhAwymkbkr39GFI8VBvWzC9THYX6WQABf9Q9-qyY | 300 |
| TXT | google-site-verification=vjg2Tbif0nJQ-Kto4AwyZ5VnSSy6tHvD6vnJ0c5uMvk | 300 |
| TXT | v=spf1 a mx include:_spf.google.com include:sendgrid.net include:stspg-customer.com include:helpscoutemail.com -all | 300 |
| AAAA | 2606:4700:4403::6812:2959 | 300 |
| AAAA | 2a06:98c1:3105::ac40:92a7 | 300 |
Technology stack
Analytics and advertising IDs
google_analytics:G-XDQWKTB16Ggoogle_ads:AW-11226840316microsoft_clarity:y8vbjca43qlinkedin_insight:9917226Other sites using the same IDs: gitbook.io
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, WE1, Google Trust Services |
| Expires | January 1, 2027 |
| Days remaining | 52 |
| Protocol | TLSv1.3 |
| Names | gitbook.com, mta-sts.gitbook.com |
Email security
- warnMTA-STS is in testing mode. Switch to mode: enforce once reports look clean.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodDKIM keys found (selector: google, s1, s2).
- good5 MX record(s) found. Mail is handled by Google Workspace.
- goodTLS-RPT is set up: you receive reports about failed encrypted deliveries.
Homepage metadata
| Title | The knowledge layer for AI | GitBook |
|---|---|
| Description | GitBook is a knowledge platform that connects your docs, product and users, answers user questions, and identifies knowledge gaps. Docs-as-code support & AI insights included. |
| Language | en-US |
| Canonical | https://www.gitbook.com/ |
| Structured data | Organization, WebSite, SoftwareApplication |
| Indexable | Yes |
| Word count | 1523 |
About gitbook.com
Who is the registrar of gitbook.com?
gitbook.com is registered with Cloudflare, Inc. (IANA ID 1910).
When does gitbook.com expire?
The current registration of gitbook.com expires on June 13, 2030. It was first registered on June 13, 2014.
What technology does gitbook.com use?
We detected 11 technologies on gitbook.com, including Google Ads, LinkedIn Insight Tag, Reddit Pixel, Amplitude, Google Analytics 4, Microsoft Clarity.
Does gitbook.com protect its email with SPF and DMARC?
gitbook.com scores 89/100 (grade B) for email security. MTA-STS is in testing mode. Switch to mode: enforce once reports look clean. No BIMI record (optional: shows your logo next to your emails in supporting inboxes).
What are the name servers of gitbook.com?
gitbook.com uses hugh.ns.cloudflare.com, dahlia.ns.cloudflare.com.