indexo.dev

jadrnicek.com

.com crawl

First seen 2026-06-02 · Last seen 2026-06-02 · ok HTTP/1.1 200 1073 ms crawled 2026-06-02

IE · 34.243.109.100 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Domů • Jadrnicek.com
Language
cs

Technology

Server
Apache

Third-party hosts loaded (1)

  • www.google.com×1

Contact

Email
Phone

Registration

Registrar
Tucows Domains Inc.
Created
2009-09-25
Expires
2026-09-25 113 days left
Updated
2025-09-01
Name servers
  • ns.forpsi.cz
  • ns.forpsi.it
  • ns.forpsi.net

DNS records live

NS
  • ns.forpsi.cz
  • ns.forpsi.it
  • ns.forpsi.net
MX
  • 0 jadrnicek-com.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

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

Certificate (current)

R12
from 2026-05-08 to 2026-08-06
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.jadrnicek.com/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
strict-transport-security
max-age=63072000; includeSubdomains; preload

Links to (1)

Linked from (1)