indexo.dev

a4info.pl

.pl crawl

First seen 2026-05-27 · Last seen 2026-05-27 · ok HTTP/1.1 200 497 ms crawled 2026-05-30

NL · 13.69.68.37 · AS8075 Microsoft Corporation

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
A4Info
Language
en

DNS records live

NS
  • cecelia.ns.cloudflare.com
  • everton.ns.cloudflare.com
MX
  • 10 autostradaa4.nazwa.pl

Email authentication weak

SPF
v=spf1 include:sendgrid.net ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Certum DV TLS G2 R39 CA
from 2026-02-07 to 2027-02-07
Expires in 251 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.a4info.pl/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • referrer-policy
findings
  • short HSTS max-age
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
  • missing content type protection
  • missing Permissions Policy
Header values
referrer-policy
origin-when-cross-origin
x-frame-options
sameorigin
content-security-policy
default-src 'none';script-src 'self' *.googletagmanager.com;frame-src 'self';font-src 'self' data:;connect-src 'self' https://api.a4go.pl *.googletagmanager.com *.google-analytics.com *.analytics.google.com data:;img-src 'self' https://api.a4go.pl *.googletagmanager.com *.google-analytics.com data:;style-src 'self' 'unsafe-inline';manifest-src 'self';
strict-transport-security
max-age=2592000

Linked from (1)