indexo.dev

error-undefined.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-19 · ok HTTP/1.1 200 389 ms crawled 2026-05-07

DE · 91.218.23.13 · AS210226 Windcloud 4.0 GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
error:undefined design / webdesign + printdesign / freelancers / berlin
Description
We are error:undefined design. We are a team of freelance front-end developers & print designers based in Berlin. We are enthusiastic about the possibilities of contemporary aesthetics. Visit us to lean more about our way of working together and our past projects.
Language
en

Technology

Server
Apache

Third-party hosts loaded (1)

  • ajax.googleapis.com×1

Registration

Updated
2016-01-21
Name servers
  • ns1.green-internet.net.
  • ns2.green-internet.net.
  • ns3.green-internet.net.
  • ns4.green-internet.net.

DNS records live

NS
  • ns1.green-internet.net
  • ns2.green-internet.net
  • ns3.green-internet.net
  • ns4.green-internet.net
MX
  • 10 mail.green-internet.net

Email authentication weak

SPF
v=spf1 include:spf.biohost.de ~all
softfail (~all)
DMARC
not published
DKIM
  • mail: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9FpKa7WpfBxFPOmbuVbt9KHuaSLN+kWiEpOYbJBMxYYwu9qWSvLUt4qY6SVkmfbsdBGMT3uGpYCIafZShrJ…
selectors probed

Certificate (current)

R12
from 2026-04-27 to 2026-07-26
Expires in 67 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://error-undefined.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

Linked from (4)