indexo.dev

holko.pl

.pl crawl

First seen 2026-05-27 · Last seen 2026-05-27 · ok HTTP/1.1 200 468 ms crawled 2026-05-30

PL · 77.65.215.3 · AS210379 PROGRESO.PL Sp. z o.o

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Arkadiusz Holko
Language
en
Feeds

Open Graph

url
https://holko.pl/
title
Arkadiusz Holko
description
Arkadiusz Holko

Technology

Server
Apache

Third-party hosts loaded (1)

  • feeds.feedburner.com×1

Social

DNS records live

NS
  • d.ns1.pl
  • d.ns2.pl
MX
Show 7 MX records
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 10 aspmx4.googlemail.com
  • 10 aspmx5.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication partial

SPF
v=spf1 include:_spf.progreso.pl include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1;p=none
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-21 to 2026-08-19
Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (4)

Linked from (1)