indexo.dev

nfsec.pl

.pl crawl

First seen 2026-06-03 · Last seen 2026-06-04 · ok HTTP/1.1 200 479 ms crawled 2026-06-04

PL · 147.135.209.161 · AS16276 OVH SAS

Reputation 92/100 weak subdomain policy

Classifying

HTML metadata

Title
NF.sec – Bezpieczeństwo systemu Linux
Description
Network Access to Reserved Files jest blogiem zajmującym się podstawowym bezpieczeństwem systemów Linux oraz innymi zagadnieniami cyberbezpieczeństwa
Language
pl-PL
Canonical
https://nfsec.pl/
Feeds

Technology

Server
httpd
CMS
WordPress

Third-party hosts loaded (1)

  • gmpg.org×1

Social

DNS records live

NS
  • ns1.nfsec.pl
  • ns2.nfsec.pl
  • ns3.nfsec.pl
  • ns4.nfsec.pl
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
Verified for
  • Google

Email authentication strong

SPF
v=spf1 a mx include:_spf.google.com -all
strict (-all)
DMARC
v=DMARC1; p=reject; sp=none; fo=1; pct=100; rua=mailto:cert@nfsec.pl; ruf=mailto:cert@nfsec.pl; adkim=s; aspf=s;
policy: reject (enforced) · sp=none
DKIM
no key found at common selectors

Certificate (current)

cyber_Folks
from 2026-03-02 to 2027-03-02
Expires in 269 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://nfsec.pl/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
  • cross-origin-opener-policy
findings
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
Header values
referrer-policy
no-referrer
x-frame-options
SAMEORIGIN
permissions-policy
geolocation=(), camera=(), microphone=()
x-content-type-options
nosniff
content-security-policy
default-src 'self'; img-src 'self' *.gravatar.com data: ; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; font-src 'self' data: ; object-src 'self'; worker-src 'self'; media-src 'self'; frame-ancestors 'self'; base-uri 'self'; form-action 'self'; connect-src 'self'; upgrade-insecure-requests
strict-transport-security
max-age=31536000; includeSubDomains; preload
cross-origin-opener-policy
same-origin

Links to (25)

Linked from (2)