indexo.dev

e-matematika.cz

.cz crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 287 ms crawled 2026-06-02

CZ · 78.108.102.229 · AS8251 FreeTel, s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Nesnesitelně snadná matematika – e-Matematika.cz
Description
Komplexní matematický web, který pokrývá veškeré potřeby studentů všech typů škol a dalších zájemců o matematiku a matematických nadšenců.
Language
cs
Generator
PSPad editor, www.pspad.com

Technology

Server
Apache
PHP
5.3.29 end of life

Third-party hosts loaded (4)

  • c1.navrcholu.cz×2
  • toplist.cz×1
  • www.maturujeme.cz×1
  • www.vsenavse.cz×1

Contact

Phone

DNS records live

NS
  • kikimora.laddobar.cz
  • striga.laddobar.cz
MX
  • 10 kikimora.laddobar.cz

Email authentication weak

SPF
not published
DMARC
not published
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtpssOdfbWTmBjxVDgVy1TGW9zxCLfbKwhOqsb+U6NZ7u8ShBJCje/HszBhzLKmfs6r4hRTPoKmq9Fy…
selectors probed

Certificate (current)

YR1
from 2026-06-02 to 2026-08-31
Expires in 89 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://e-matematika.cz/

present
  • strict-transport-security
  • x-content-type-options
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
strict-transport-security
max-age=0

Links to (22)

Linked from (5)