instytut-drzewa.pl

.pl crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 827 ms crawled 2026-05-30

PL · 5.252.230.239 · AS203417 LH.pl Sp. z o.o.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title

Instytut Drzewa – Szkolenia, standardy, certyfikacje

Language

pl-PL

Generator

WordPress 7.0

Canonical

https://instytut-drzewa.pl/

Feeds

Technology

Server: Apache
CMS: WordPress 7.0
jQuery: 3.7.1

Third-party hosts loaded (1)

gmpg.org×1

Registration

Registrar

LH.pl Sp. z o.o.

Created

2015-02-25

Expires

2027-02-25 269 days left

Updated

2026-02-19

Name servers

ns.lh.pl
ns2.lighthosting.net

DNS records live

NS

ns.lh.pl
ns2.lighthosting.net

MX

5 mail11.lh.pl

TXT

Show 8 TXT records

3a8dd48f46fc3dddad904ea39926021fcb9aa559c73241bb84ff59780da733a
a35c32487e513ead064dfb531264f6325adae6b386bfc61bc3d1b1057ea0c26
6dcdf703f8de8ffd4aae0b796a4bf69757e641eedcefc35963d2304c5a21fb5
MS=8019ECBE9980959EB3634823A0F050EC15CD9461
5ea467e1b42a060ee10531851c82c816b433b6652f97d513ed41a09756bffbe9
f935169bc56ffc269607a0c015a54073c8aa8cdf1223859ed808cab9b8bd33c4
387b38b34449044dc97175734a932959115eec151bbc44ac2c1ac5dbcf56bdd
759127794cf9f82c6addb906f25b544760355382a1cbd33ed1ff3f7c1c6366f8

Email authentication strong

SPF

v=spf1 include:_spf.mlsend.com include:_spf.lh.pl -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc-report@lh.pl;

policy: quarantine

DKIM

default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoc01lwD2DAVykMif7fAZ1sBfwpOFBbJWKtArkNEWScBbuBFQAvwNFZxIjou17iWLonLXtKUC0TntGX…

selectors probed

Certificate (current)

LH.pl CA

from 2026-04-10 to 2026-10-26

Expires in 147 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://instytut-drzewa.pl/

findings

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

Links to (3)

Linked from (1)

fer.org.pl×1