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Domain report

gitbook.io

gitbook.io ranks in the top 0.00080% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 205,243 distinct hosts observed under it.

Explore gitbook.io in the Web Graph

Connectivity

#1,072harmonic-centrality rank
Top percentile
0.00080%
Hosts observed
205,243

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://gitbook.io/ answered with HTTP 200.

DNS records

A
  • 104.18.40.47
  • 172.64.147.209
AAAA
  • 2a06:98c1:310d::6812:282f
  • 2606:4700:4401::ac40:93d1
MX
  • 10 aspmx.l.google.com.
  • 20 alt1.aspmx.l.google.com.
  • 20 alt2.aspmx.l.google.com.
  • 30 aspmx2.googlemail.com.
  • 30 aspmx3.googlemail.com.
NS
  • dahlia.ns.cloudflare.com.
  • hugh.ns.cloudflare.com.

Live preview

This is a live, sandboxed embed of gitbook.io — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html
Cache-Control
public, max-age=0, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31536000
X-Frame-Options
Not sent
X-Content-Type-Options
nosniff
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://gitbook.io/HTTP 301

    → https://gitbook.io/

  2. 2.https://gitbook.io/HTTP 302

    → https://www.gitbook.com/

  3. 3.https://www.gitbook.com/HTTP 200

Meta tags

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.
Canonical
https://www.gitbook.com/
Robots
max-image-preview:large
Generator
Framer fc3086c
Open Graph title
The knowledge layer for AI | GitBook
Open Graph 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.
Open Graph image
https://framerusercontent.com/assets/1IBeoRkP2RzVeGtGFLDk6w0lmEQ.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
The knowledge layer for AI | GitBook
Twitter image
https://framerusercontent.com/assets/1IBeoRkP2RzVeGtGFLDk6w0lmEQ.png

robots.txt

Disallow rules (User-agent: *)
0
Disallow rules (other agents)
0

No Sitemap declared in robots.txt.

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • Google Analyticsanalytics

    Found "googletagmanager.com/gtag/js" in the page's HTML

  • HubSpotanalytics

    Found "js.hs-scripts.com" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.