indexo.dev

rejstriksportu.cz

.cz crawl

First seen 2026-05-25 · Last seen 2026-05-30 · ok HTTP/1.1 200 3897 ms crawled 2026-05-29

NL · 4.210.153.175 · AS8075 Microsoft Corporation

Reputation 87/100 weak security headers weak subdomain policy

Classifying

HTML metadata

Title
RS NSA
Language
cs

Technology

Server
Kestrel

Registration

Registrar
REG-ACTIVE24
Created
2020-05-05
Expires
2030-05-04 1433 days left
Updated
2024-09-10
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
  • 0 rejstriksportu-cz.mail.protection.outlook.com
TXT
  • 8pn7z258jm41xjz61j4cr4lmvh2lvjcp
  • x2vz8qsx64fdp9jh3pk5zqjfymqkz3rs
Verified for
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com ip4:104.45.59.186 ip4:51.137.60.56 -all
strict (-all)
DMARC
v=DMARC1;p=quarantine;sp=none;pct=100
policy: quarantine · sp=none
DKIM
no key found at common selectors

Certificate (current)

GeoTrust TLS RSA CA G1
from 2025-06-12 to 2026-06-19
Expires in 18 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://rejstriksportu.cz/

present
  • strict-transport-security
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=2592000

Linked from (2)