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4-zero.org

.org ok HTTP/1.1 200 316 ms

First seen 2026-06-03 · Last seen 2026-06-17 · crawled 2026-06-17

DE · 94.130.219.69 · AS24940 Hetzner Online GmbH

Reputation 89/100 weak security headers dmarc monitor-only

sector tech subsector hosting infra type homepage

HTML metadata

Title
Welcome to nginx!

Technology

Server
nginx

Registration

Registrar
IONOS SE
Created
2018-01-17
Expires
2027-01-17 211 days left
Updated
2026-03-03
Name servers
  • ns1113.ui-dns.org
  • ns1036.ui-dns.de
  • ns1053.ui-dns.com
  • ns1106.ui-dns.biz

DNS records live

NS
  • ns1036.ui-dns.de
  • ns1053.ui-dns.com
  • ns1106.ui-dns.biz
  • ns1113.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
no key found at common selectors

Certificates

Loading certificate

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://4-zero.org/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (2)

Linked from (1)

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