indexo.dev

otwarte.eu

.eu crawl dns

First seen 2026-05-29 · Last seen 2026-06-03 · ok HTTP/1.1 200 555 ms crawled 2026-05-31

US · 104.21.11.88 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Wydawnictwo Otwarte - otwarte.eu
Language
pl-PL

Technology

CDN
Cloudflare
jQuery
1.10.2 known XSS (<3.5)
Stack
PHP
Analytics
  • Google Tag Manager
Ads
  • Google Ads
  • Google Ads (DoubleClick)
Fonts
  • Google Fonts

Third-party hosts loaded (6)

  • fonts.googleapis.com×3
  • www.facebook.com×3
  • ajax.googleapis.com×1
  • googleads.g.doubleclick.net×1
  • www.googleadservices.com×1
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • piotr.ns.cloudflare.com
  • stephane.ns.cloudflare.com
MX
  • 10 mail.otwarte.eu
TXT
Show 5 TXT records
  • 3468f1ee00cf24d82abedaeb430d2c9720623f34ac2b637148303fcbb2819cdc
  • 69cbea279ef80dbb366bfbdcfea744c96f46856d450b4e9c436dc3d5c3d94399
  • ad8d6c745956c04cf5c9f29b58273bf941c789a2e9c36a522e9d0a5bc2b5c3a5
  • d301c6fef79cbecb19e755216458a37636ba0518c8667346b01f930869730179
  • mailerlite-domain-verification=bd965d330bb0fad774b0ae1db2601e72c16676c8
Verified for
  • Google
  • Meta
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:_spf.mlsend.com mx a ip4:91.90.184.228 -all
strict (-all)
DMARC
v=DMARC1; p=reject; rua=mailto:informatyk@otwarte.eu; ruf=mailto:informatyk@otwarte.eu; rf=afrf; sp=reject; pct=100; ri=86400
policy: reject (enforced) · sp=reject
DKIM
  • mail: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzgD39ok40ncr9+Mh9PQAijqeBHs1o4qAT+oUoSsVO4K2/tzF1oUCidWywC2MzokyPNYkMgruPRSZS6…
selectors probed

Certificate (current)

WE1
from 2026-05-23 to 2026-08-21
Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://www.otwarte.eu/

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=0; includeSubDomains; preload

Links to (7)

Linked from (2)