indexo.dev

rnbschool.cz

.cz crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 299 ms crawled 2026-06-03

CZ · 194.182.85.55 · AS24806 INTERNET CZ, a.s.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
RNB SCHOOL

Technology

Server
openresty
CMS
Nuxt
JS framework
Nuxt

Social

Contact

Email
Phone

DNS records live

NS
  • ns.forpsi.cz
  • ns.forpsi.it
  • ns.forpsi.net
MX
  • 1 smtp.google.com
Verified for
  • Google

Email authentication partial

SPF
v=spf1 a mx include:spf.boldem.cz -all
strict (-all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqIk6SDlV+76rsAuE2uBmc5YUYptEP9q04prspglFpHJFGFqrKYRtZT/A/evJ8mIznbezWr+l07KxKe…
selectors probed

Certificate (current)

E7
from 2026-05-08 to 2026-08-06
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://rnbschool.cz/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000; preload

Links to (4)

Linked from (1)