indexo.dev

the-cloud-book.com

.com crawl

First seen 2026-05-10 · Last seen 2026-05-16 · ok HTTP/1.1 200 936 ms crawled 2026-05-16

US · 104.21.12.30 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
The Practice of Cloud System Administration
Generator
All in One SEO (AIOSEO) 4.2.5.1
Canonical
https://the-cloud-book.com
Feeds

Open Graph

url
https://the-cloud-book.com
title
The Practice of Cloud System Administration
locale
en_US
site name
The Practice of Cloud System Administration | Designing and Operating Large Distributed Systems

Technology

CDN
Cloudflare
CMS
WordPress
Fonts
  • Google Fonts

Third-party hosts loaded (1)

  • fonts.googleapis.com×1

Registration

Registrar
Gandi SAS
Created
2014-04-10
Expires
2027-04-10 325 days left
Updated
2026-03-10
Name servers
  • kim.ns.cloudflare.com
  • walt.ns.cloudflare.com

DNS records live

NS
  • kim.ns.cloudflare.com
  • walt.ns.cloudflare.com
MX
  • 0

Email authentication weak

SPF
v=spf1 -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-03 to 2026-07-02
Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://the-cloud-book.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (5)

Linked from (2)