indexo.dev

03n.de

.de crawl

First seen 2026-05-15 · Last seen 2026-05-15 · ok HTTP/1.1 200 1429 ms crawled 2026-05-20

DE · 87.106.66.216 · AS8560 IONOS SE

Reputation 100/100

Classifying

Technology

Server
nginx

Registration

Updated
2026-04-10
Name servers
  • nsa9.schlundtech.de.
  • nsb9.schlundtech.de.
  • nsc9.schlundtech.de.
  • nsd9.schlundtech.de.

DNS records live

NS
  • nsa9.schlundtech.de
  • nsb9.schlundtech.de
  • nsc9.schlundtech.de
  • nsd9.schlundtech.de
MX
  • 0 mail.03n.de

Email authentication strong

SPF
v=spf1 a mx -all
strict (-all)
DMARC
v=DMARC1; p=reject
policy: reject (enforced)
DKIM
  • default: v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDYzSlqqeqA5Xf0q6fB5nxaFHJf1DbasMuXt9Oz2+f7M8K9iYo+mgm8quK4btIP+jQWy+P/yUT+mB5phJJsN4hoWPzC0…
selectors probed

Certificate (current)

R13
from 2026-05-05 to 2026-08-03
Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://03n.de/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=15768000; includeSubDomains

Linked from (1)