indexo.dev

book101.com

.com crawl

First seen 2026-04-26 · Last seen 2026-05-20 · ok HTTP/1.1 200 1412 ms crawled 2026-05-20

US · 172.67.217.209 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
book101.com
Description
book101.com
Language
en

Technology

CDN
Cloudflare
CMS
Next.js
Analytics
  • Google Tag Manager

Third-party hosts loaded (3)

  • shafaraz.gumlet.io×50
  • api.trustyou.com×28
  • www.googletagmanager.com×1

Registration

Registrar
GoDaddy.com, LLC
Created
2005-04-27
Expires
2031-04-27 1802 days left
Updated
2026-02-12
Name servers
  • carlos.ns.cloudflare.com
  • naomi.ns.cloudflare.com

DNS records live

NS
  • carlos.ns.cloudflare.com
  • naomi.ns.cloudflare.com
MX
  • 5 smtp.google.com

Email authentication weak

SPF
v=spf1 +a +mx +ip4:194.233.73.125 include:sophos.id +include:_spf.sophos.id +include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAucnle9YTtoZdXNIQjI2JR7MNriKPl9T+n+zKu+c9LVzio+owTvemDUreB97FJPZXUPW2BhtrkqQo4s…
selectors probed

Certificate (current)

WE1
from 2026-04-11 to 2026-07-10
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://book101.com/

present
  • x-frame-options
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff

Linked from (1)