tomas-cerny.com

.com crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 1699 ms crawled 2026-06-04

CZ · 185.82.212.80 · AS60592 Gransy s.r.o.

Reputation 79/100 weak security headers spf without fallback no dmarc policy

Classifying

Technology

Server
openresty
PHP
7.4.33 end of life

Registration

Registrar
Gransy, s.r.o.
Created
2011-11-15
Expires
2026-11-15 157 days left
Updated
2025-10-14
Name servers
  • ns.gransy.com
  • ns2.gransy.com
  • ns3.gransy.com
  • ns4.gransy.com
  • ns5.gransy.com

DNS records live

NS
  • ns.gransy.com
  • ns2.gransy.com
  • ns3.gransy.com
  • ns4.gransy.com
  • ns5.gransy.com
MX
  • 10 mx.internetserver.cz

Email authentication weak

SPF
v=spf1 a mx include:gransy.com
missing all
DMARC
not published
DKIM
  • mail: v=DKIM1;h=sha256;k=rsa;s=email;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnPMGXe4YRuI6pCxfrcyuIF89Qcl6crcx/sZIixiuedrj6th2s2RRsmYiertHzWf…
selectors probed

Certificates

Loading certificate

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://tomas-cerny.com/

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

Linked from (1)

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