indexo.dev

tan3.de

.de dns crawl

First seen 2026-05-04 · Last seen 2026-05-17 · ok HTTP/1.1 200 2641 ms crawled 2026-05-11

FI · 135.181.126.217 · AS24940 Hetzner Online GmbH

Reputation 100/100

Classifying

HTML metadata

Title
tan3 | Webdesign -und programmierung aus Hamburg
Description
tan3 sind Stefan Mielke und Oliver Tan. Konzeption, Gestaltung, Realisierung von Websites. Unaufgeregt. Professionell. Norddeutsch.
Language
de

Technology

Server
Apache

Contact

Email
Phone

Registration

Updated
2010-04-15
Name servers
  • ns1.first-ns.de.
  • robotns2.second-ns.de.
  • robotns3.second-ns.com.

DNS records live

NS
  • ns1.first-ns.de
  • robotns2.second-ns.de
  • robotns3.second-ns.com
MX
  • 10 mail.tan3.de
TXT
  • v=BIMI1;l=https://tan3.de/assets/img/tan3.svg

Email authentication strong

SPF
v=spf1 ip4:136.243.242.8/29 ip6:2a01:4f8:241:51e::/64 ip4:135.181.126.216/29 ip6:2a01:4f9:3080:32e9::/64 -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; ruf=mailto:admin@tan3.de; adkim=s; aspf=s;
policy: quarantine
DKIM
  • mail: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLSd5TvoLI/m1Up7jCOKjsAwmISgNfRjRt1kaQHCzpL4TwWM7OpQs3Cc2Kf3qi9mHbVwWcxyyhf5lVAIbt4P…
selectors probed

Certificate (current)

E7
from 2026-03-28 to 2026-06-26
Expires in 38 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://tan3.de/

present
  • x-frame-options
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
sameorigin
x-content-type-options
nosniff

Links to (31)

Linked from (1)