indexo.dev

lo4bielsko.edu.pl

.pl crawl

First seen 2026-05-28 · Last seen 2026-05-31 · ok HTTP/1.1 200 648 ms crawled 2026-05-31

PL · 91.217.242.47 · AS197279 WizjaNet sp. z o.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
IV LO im. KEN w Bielsku-Białej
Language
pl

Technology

Server
nginx
PHP
8.5.6
Fonts
  • Google Fonts
Social widgets
  • YouTube Embed

Third-party hosts loaded (2)

  • fonts.googleapis.com×1
  • www.youtube.com×1

Social

DNS records live

NS
  • dns1.mydevil.net
  • dns2.mydevil.net
MX
  • 1 smtp.google.com
Verified for
  • Google

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-13 to 2026-08-11
Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://lo4bielsko.edu.pl/

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

Links to (13)

Linked from (2)