indexo.dev

atec21.cz

.cz crawl

First seen 2026-05-30 · Last seen 2026-05-30 · ok HTTP/1.1 200 371 ms crawled 2026-05-31

IS · 185.112.144.4 · AS44925 1984 ehf

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
atec21

Technology

Server
LiteSpeed

DNS records live

NS
  • ns.inwx.de
  • ns2.inwx.de
  • ns3.inwx.eu
MX
  • 0 mail.atec21.com

Email authentication strong

SPF
v=spf1 mx ip4:89.147.109.75 ~all
softfail (~all)
DMARC
v=DMARC1;p=quarantine;rua=mailto:reports@atec21.com;ruf=mailto:reports@atec21.com;fo=0:1:d:s;aspf=r;adkim=r;
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-22 to 2026-07-21
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://atec21.cz/

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

Linked from (1)