indexo.dev

sebastianherkner.com

.com crawl

First seen 2026-04-24 · Last seen 2026-05-15 · ok HTTP/1.1 200 7199 ms crawled 2026-05-18

DE · 217.160.0.180 · AS8560 IONOS SE

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Studio Sebastian Herkner
Language
en
Canonical
https://sebastianherkner.com/

Open Graph

url
https://sebastianherkner.com/
title
Home
site name
Studio Sebastian Herkner

Technology

Server
Apache

Registration

Registrar
IONOS SE
Created
2006-09-10
Expires
2026-09-10 112 days left
Updated
2025-09-11
Name servers
  • ns1109.ui-dns.biz
  • ns1109.ui-dns.com
  • ns1109.ui-dns.de
  • ns1109.ui-dns.org

DNS records live

NS
  • ns1109.ui-dns.biz
  • ns1109.ui-dns.com
  • ns1109.ui-dns.de
  • ns1109.ui-dns.org
MX
  • 10 mx00.ionos.de
  • 10 mx01.ionos.de

Email authentication partial

SPF
v=spf1 include:_spf-eu.ionos.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

Sectigo RSA Domain Validation Secure Server CA
from 2025-05-26 to 2026-06-10
Expires in 20 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)