indexo.dev

djoerdhiemstra.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 2667 ms crawled 2026-05-08

NL · 141.138.169.201 · AS20847 Previder B.V.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Djoerd Hiemstra – Research, Teaching and More
Language
en
Generator
WordPress 5.9.5
Feeds

Technology

Server
Apache
CMS
WordPress

Third-party hosts loaded (2)

  • gmpg.org×1
  • s.w.org×1

Contact

Address
rd HiemstraPosted onApril 24, 2026

DNS records live

NS
  • webhostingserver.g1-dns.com
  • webhostingserver.g1-dns.one
MX
  • 10 mx.runbox.com

Email authentication partial

SPF
v=spf1 include:spf.runbox.com -all
strict (-all)
DMARC
v=DMARC1;p=none
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyvXu+Qvxcxae5slcNPrart0iEedrd/NkYO0KlymnvYmHfpsVQSTrNz6EYcjIJ3hAMybfyd+m++2stn…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA70fkNQpCyEzeVvEAzjqUiQFxDUS+7TpxedUELOXrWL2/4gVEJtuJ0PQYjOkES54r+ft6DH0o/3ss+b…
selectors probed

Certificate (current)

R12
from 2026-04-04 to 2026-07-03
Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (16)

Linked from (1)