indexo.dev

dr-online.cz

.cz crawl

First seen 2026-05-28 · Last seen 2026-05-31 · ok HTTP/1.1 200 348 ms crawled 2026-05-30

SK · 37.9.175.164 · AS51013 WebSupport s.r.o.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Active24
Language
en

Technology

Server
openresty

Registration

Registrar
REG-ACTIVE24
Created
2026-03-17
Expires
2027-03-16 288 days left
Updated
2026-03-17
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 mx10.active24.cz
  • 100 mx20.active24.cz

Email authentication strong

SPF
v=spf1 a mx include:_spf.websupport.cz -all
strict (-all)
DMARC
v=DMARC1; p=quarantine
policy: quarantine
DKIM
  • mail: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAndlDMHeGYenaORCEWyV9xCfRGQiADLfLMMPkivmWRcFUf/mVDVbDp0Ll1my1+3T08QgCnZ82813p1k…
selectors probed

Certificate (current)

R13
from 2026-05-15 to 2026-08-13
Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://dr-online.cz/

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

Links to (1)

Linked from (2)