indexo.dev

compositionn.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 794 ms crawled 2026-05-19

US · 104.21.81.149 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Composition n
Description
By Alexander Christiaan Jacob, 2011. Click or refresh for a new composition.
Language
en
Canonical
https://compositionn.com/

Open Graph

url
https://compositionn.com/
title
Composition n
description
By Alexander Christiaan Jacob, 2011. Click or refresh for a new composition.

Technology

CDN
Cloudflare
Analytics
  • Google Tag Manager

Third-party hosts loaded (3)

  • alexanderchristiaanjacob.com×1
  • github.com×1
  • www.googletagmanager.com×1

Registration

Registrar
The Registrar Company B.V.
Created
2011-12-13
Expires
2026-12-13 206 days left
Updated
2025-12-14
Name servers
  • isla.ns.cloudflare.com
  • mitch.ns.cloudflare.com

DNS records live

NS
  • isla.ns.cloudflare.com
  • mitch.ns.cloudflare.com
MX
  • 0 mx1.sub5.homie.mail.dreamhost.com
  • 0 mx2.sub5.homie.mail.dreamhost.com

Email authentication weak

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

Certificate (current)

WE1
from 2026-04-08 to 2026-07-07
Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://compositionn.com/

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

Linked from (2)