indexo.dev

3net.pl

.pl dns

First seen 2026-05-28 · Last seen 2026-05-28 · ok HTTP/1.1 200 412 ms crawled 2026-05-30

PL · 37.28.159.90 · AS197155 Artnet Sp. z o.o.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
.: 3net Sp. z o.o. .:
Description
Usługi internetowe: realizacja prezentacji/serwisów firmowych; hosting, internet dla firm, instytucji, administracji.

Technology

Server
nginx

Contact

Email

DNS records live

NS
  • ns1.3net.pl
  • ns2.3net.pl
  • ns3.3net.pl
MX
  • 10 mailscanner.3net.pl
  • 20 mail001.3net.pl
Verified for
  • Google

Email authentication partial

SPF
v=spf1 a mx include:_spf.3net.pl -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc@3net.pl
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC32KZhmQIBtJ2bY/D4kGZnAUXoszDUu/7EX5eZhoSZSa6UOsct9MIs9ZZn31zB1bh3ahhtrf4wRqb/PLK3s7hevRYpe…
selectors probed

Certificate (current)

Trustico RSA DV SSL CA 2
from 2026-05-04 to 2026-11-19
Expires in 171 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://3net.pl/

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

Links to (20)