indexo.dev

modern-linux.info

.info crawl

First seen 2026-05-09 · Last seen 2026-05-09 · ok HTTP/1.1 200 1168 ms crawled 2026-05-15

US · 185.199.110.153 · AS54113 Fastly, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Learning Modern Linux | A Handbook for the Cloud Native Practitioner
Description
A Handbook for the Cloud Native Practitioner
Language
en-US
Generator
Jekyll v3.10.0
Canonical
https://modern-linux.info/

Open Graph

url
https://modern-linux.info/
title
Learning Modern Linux
locale
en_US
site name
Learning Modern Linux
description
A Handbook for the Cloud Native Practitioner

Technology

CDN
Fastly
Server
GitHub.com

Social

Registration

Registrar
NameCheap, Inc.
Created
2021-10-15
Expires
2026-10-15 146 days left
Updated
2025-09-20
Name servers
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com

DNS records live

NS
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-01 to 2026-07-30
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://modern-linux.info/

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

Links to (2)

Linked from (1)