indexo.dev

jannisgundermann.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-10 · ok HTTP/1.1 200 1448 ms crawled 2026-05-07

US · 188.114.96.3 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Homepage – Jannis Gundermann
Language
en

Technology

CDN
Cloudflare
CMS
Gatsby

Third-party hosts loaded (2)

  • ajax.googleapis.com×1
  • use.typekit.com×1

Social

Contact

Phone

Registration

Registrar
1API GmbH
Created
2009-03-01
Expires
2027-03-01 285 days left
Updated
2026-03-01
Name servers
  • doug.ns.cloudflare.com
  • linda.ns.cloudflare.com

DNS records live

NS
  • doug.ns.cloudflare.com
  • linda.ns.cloudflare.com
MX
Show 7 MX records
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com
  • 30 aspmx4.googlemail.com
  • 30 aspmx5.googlemail.com
TXT
  • %form%

Email authentication partial

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

Certificate (current)

WE1
from 2026-05-03 to 2026-08-01
Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (6)

Linked from (2)