oa-pisek.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 566 ms crawled 2026-06-01

CZ · 80.250.12.186 · AS21430 WIA spol. s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title

OA Písek – Obchodní akademie a Jazyková škola s právem státní jazykové zkoušky

Language

Canonical

https://oa-pisek.cz/

Feeds

OA Písek » RSS zdroj RSS

Technology

Server: Microsoft-IIS
CMS: WordPress
PHP: 8.2.9 security-only
jQuery: 3.7.1

Fonts

Font Awesome
Google Fonts

Third-party hosts loaded (4)

use.fontawesome.com×3
fonts.googleapis.com×1
gmpg.org×1
www.google.com×1

Social

Contact

Phone

+420 382 214 887

DNS records live

NS

ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu

MX

0 oapisek-cz0e.mail.protection.outlook.com

Verified for

Canva
Microsoft 365

Email authentication weak

SPF: v=spf1 include:spf.protection.outlook.com include:mail.wia.cz -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-05-16 to 2026-08-14

Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://oa-pisek.cz/

findings

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