indexo.dev

marcus.io

.io crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 474 ms crawled 2026-05-18

DE · 89.110.148.27 · AS24989 Equinix (Germany) GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
marcus.io
Description
Hello, I'm Marcus, a freelance web …
Language
en
Canonical
https://marcus.io
Feeds

Open Graph

url
https://marcus.io
title
Home
site name
marcus.io · Blog of web developer and accessibility consultant Marcus Herrmann
description
Hello, I'm Marcus, a freelance web …

Technology

Server
nginx
Analytics
  • Plausible

Third-party hosts loaded (3)

  • plausible.io×2
  • de.linkedin.com×1
  • github.com×1

Social

DNS records live

NS
  • ns1.netclusive.net
  • ns2.netclusive.net
  • ns3.netclusive.net
MX
  • 10 mail.marcus.io

Email authentication weak

SPF
v=spf1 a mx ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArq37uO3E5Ez3J71r9/b5epofvye2ODYHSnnuVbinN7V3V4dqmkDw1fL+2WrKlWZXcTxZ+qrHNBS73dc+qfb/T…
selectors probed

Certificate (current)

R13
from 2026-05-01 to 2026-07-30
Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://marcus.io/

present
  • strict-transport-security
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains; preload;

Links to (3)

Linked from (2)