indexo.dev

jrsijsling.eu

.eu crawl

First seen 2026-04-14 · Last seen 2026-05-07 · ok HTTP/1.1 200 657 ms crawled 2026-05-07

DE · 88.99.107.170 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Jeroen Sijsling -- Personal Webpage
Description
Jeroen Sijsling
Language
en

Technology

Server
Apache

DNS records live

NS
  • ns1.desec.io
  • ns2.desec.org
MX
  • 10 mail.a4a.de

Email authentication partial

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

Certificate (current)

R13
from 2026-03-20 to 2026-06-18
Expires in 29 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://jrsijsling.eu/

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

Links to (3)

Linked from (2)