indexo.dev

skolapotapeni.cz

.cz crawl

First seen 2026-05-20 · Last seen 2026-05-30 · ok HTTP/1.1 200 3489 ms crawled 2026-05-27

SK · 37.9.175.212 · AS51013 WebSupport s.r.o.

Reputation 87/100 weak security headers no dmarc policy

sector education type homepage

HTML metadata

Title
Potápěčské centrum Don Felder, škola potápění
Description
škola potápění v Lanškrouně

Technology

Server
openresty

Third-party hosts loaded (2)

  • toplist.cz×1
  • www.meteopress.cz×1

Social

Contact

Email

Registration

Registrar
REG-ACTIVE24
Created
2001-03-01
Expires
2027-03-01 273 days left
Updated
2026-01-16
Name servers
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 10 mailin1.skolapotapeni.cz
  • 100 mailin2.skolapotapeni.cz

Email authentication weak

SPF
v=spf1 mx ip4:31.15.10.37 ip4:81.95.0.0/16 -all
strict (-all)
DMARC
not published
DKIM
  • mail: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmmu/8BbBxQP8Uo2sR2oL7YduPLKRUeCWNRiJSGuTEYDr0K0oDIJaT+C8RHNiMPBaC1sr2QlpfQLBYj…
selectors probed

Certificate (current)

R13
from 2026-04-22 to 2026-07-21
Expires in 51 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.skolapotapeni.cz/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (9)

Linked from (2)