indexo.dev

gymnaziumdc.cz

.cz crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 486 ms crawled 2026-06-02

US · 172.67.165.146 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Gymnázium Děčín
Description
Vzděláváme pro lepší budoucnost
Language
cs
Canonical
https://gymnaziumdc.cz//

Technology

CDN
Cloudflare
CMS
Next.js
JS framework
Next.js
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • data.cms.forcandies.com×19
  • www.googletagmanager.com×1

Social

Contact

Phone
Address
Komenského Nám. 340/4, 40502 Děčín, Ústecký kraj, Česko

Registration

Registrar
REG-INTERNET-CZ
Created
2004-12-06
Expires
2026-12-05 185 days left
Updated
2025-08-13
Name servers
  • itzel.ns.cloudflare.com
  • zod.ns.cloudflare.com

DNS records live

NS
  • itzel.ns.cloudflare.com
  • zod.ns.cloudflare.com
MX
  • 10 gymnaziumdc-cz.mail.protection.outlook.com

Email authentication weak

SPF
v=spf1 include:outlook.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-05-27 to 2026-08-25
Expires in 83 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.gymnaziumdc.cz/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000

Links to (16)

Linked from (1)