Domain report
book.com
book.com ranks in the top 0.12% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 15 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.12%
- Hosts observed
- 15
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://book.com/ answered with HTTP 403.
DNS records
- A
- 172.67.211.220
- 104.21.91.75
- AAAA
- 2606:4700:3035::ac43:d3dc
- 2606:4700:3035::6815:5b4b
- MX
- 10 mxa-00189e01.gslb.pphosted.com.
- 20 mxb-00189e01.gslb.pphosted.com.
- NS
- austin.ns.cloudflare.com.
- gigi.ns.cloudflare.com.
Live preview
This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.
Since book.com can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.
Domain registration (WHOIS / RDAP)
- Registrar
- CSC Corporate Domains, Inc.
- Registered
- 1998-03-14
- Expires
- 2027-03-13
- Last changed
- 2026-10-13
Nameservers: AUSTIN.NS.CLOUDFLARE.COM, GIGI.NS.CLOUDFLARE.COM
Status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=UTF-8
- Cache-Control
- Not sent
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- Not sent
- Strict-Transport-Security
- Not sent
- X-Frame-Options
- SAMEORIGIN
- X-Content-Type-Options
- nosniff
- Referrer-Policy
- same-origin
- Permissions-Policy
- accelerometer=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=(),xr-spatial-tracking=*
Redirect chain
- 1.
http://book.com/HTTP 301→ https://www.barnesandnoble.com/
- 2.
https://www.barnesandnoble.com/HTTP 403
Meta tags
- Title
- Verifying your connection...
- Description
- Not set
- Canonical
- Not set
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Not set
- Open Graph description
- Not set
- Open Graph image
- Not set
- Open Graph type
- Not set
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
robots.txt request failed (HTTP 403).
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.