indexo.dev

approachableopensource.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 2244 ms crawled 2026-05-19

DE · 63.176.8.218 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Approachable Open Source
Description
A new book by Brian Muenzenmeyer, available paperback or digital
Language
en
Generator
Astro v5.18.1
Feeds

Open Graph

url
https://www.approachableopensource.com
title
Approachable Open Source
description
A new book by Brian Muenzenmeyer, available paperback or digital

Technology

CDN
Netlify
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • avatars.githubusercontent.com×5
  • fonts.googleapis.com×3
  • fonts.gstatic.com×1
  • front-end.social×1
  • www.gravatar.com×1

Social

Registration

Registrar
Tucows Domains Inc.
Created
2024-03-03
Expires
2027-03-03 286 days left
Updated
2026-03-02
Name servers
  • dns1.p04.nsone.net
  • dns2.p04.nsone.net
  • dns3.p04.nsone.net
  • dns4.p04.nsone.net

DNS records live

NS
  • dns1.p04.nsone.net
  • dns2.p04.nsone.net
  • dns3.p04.nsone.net
  • dns4.p04.nsone.net
MX
  • 10 mx.hover.com.cust.hostedemail.com

Email authentication weak

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

Certificate (current)

E7
from 2026-04-26 to 2026-07-25
Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000

Links to (3)

Linked from (1)