indexo.dev

era21.cz

.cz crawl

First seen 2026-05-16 · Last seen 2026-05-20 · ok HTTP/1.1 200 3422 ms crawled 2026-05-20

SK · 37.9.175.211 · AS51013 WebSupport s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
ERA21
Language
cs

Technology

Server
openresty
jQuery
1.11.0 known XSS (<3.5)
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • ajax.googleapis.com×2
  • code.jquery.com×1
  • fonts.googleapis.com×1
  • netdna.bootstrapcdn.com×1
  • toplist.cz×1

Social

Contact

Email

Registration

Registrar
REG-ACTIVE24
Created
2001-10-27
Expires
2026-10-28 160 days left
Updated
2026-01-15
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.era21.cz
  • 100 mailin2.era21.cz

Email authentication weak

SPF
v=spf1 include:spf.active24.com include:_spf.m1.websupport.sk ~all
softfail (~all)
DMARC
not published
DKIM
  • mail: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxiqFmDQXwXFIRxs3O2CmrBBIKwxy3/efl/jLGloQzB+PYLufJRfi6/r7khD9QhONGqyD45XcvCChq3…
selectors probed

Certificate (current)

R12
from 2026-05-14 to 2026-08-12
Expires in 83 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.era21.cz/cs/

present
  • content-security-policy
findings
  • missing HSTS
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
upgrade-insecure-requests

Links to (13)

Linked from (1)