indexo.dev

polona.pl

.pl crawl

First seen 2026-05-29 · Last seen 2026-05-31 · ok HTTP/1.1 200 230 ms crawled 2026-05-31

PL · 91.238.85.164 · AS203422 Biblioteka Narodowa

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Polona
Language
pl

Technology

Server
nginx

DNS records live

NS
  • dns.bn.org.pl
  • kirdan.nask.net.pl
  • ns03.telnaptelecom.pl
MX
  • 0 polona-pl.mail.protection.outlook.com
TXT
  • ffc27eb3f6ed1d7afcf4351b4ed00d15ce7b73f8c44df43ebe0ae563c977d33
  • mojecertpl-site-verification-mWng1yOxgdlo2GPQ3o9DqBFjH3kR15He
Verified for
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 mx ip4:91.238.85.110 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=none; sp=none; adkim=s; aspf=s; rua=mailto:dmarc@bn.org.pl; ruf=mailto:dmarc@bn.org.pl; fo=0:1:d:s;
policy: none (monitoring only) · sp=none
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDVM1FNb+l7qE6EE/6knUWxpUXMfOohwYCJwOmItyCaxuc/U8FH/6Z/G6PV+7af8HqcLSRVoXOKEnLtZmIdcX…
selectors probed

Certificate (current)

Certum OV TLS G2 R39 CA
from 2026-04-29 to 2026-11-14
Expires in 166 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://polona.pl/

present
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff

Linked from (5)