indexo.dev

jankolarik.com

.com crawl

First seen 2026-05-21 · Last seen 2026-05-21 · ok HTTP/1.1 200 1637 ms crawled 2026-05-28

NL · 35.214.179.188 · AS43515 Google Ireland Limited

Reputation 89/100 weak security headers dmarc monitor-only

sector other type homepage

HTML metadata

Title
Jan Kolařík

Technology

Server
nginx
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Social

Registration

Registrar
Tucows Domains Inc.
Created
2011-04-06
Expires
2028-04-06 675 days left
Updated
2026-04-05
Name servers
  • ns1.siteground.net
  • ns2.siteground.net

DNS records live

NS
  • ns1.siteground.net
  • ns2.siteground.net
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication partial

SPF
v=spf1 include:_spf.google.com include:jankolarik.com.spf.auto.dnssmarthost.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; aspf=r; adkim=r;
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA06WI4RmrIKzGYCmgA6OarVeISuqg7sNSXO7OgLwB/BY6aZRcMirubXx71J7Ob+KtQe+/+tdoFisnZY…
  • google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCCV0Ja6qAiJF9nI1qDJMXp6+RzaaS6lerfh5rfWXKmU34zdgyeNO2cJ2lqT3ridQoM5PJGz5xFyEMSMLAkGo…
selectors probed

Certificate (current)

R12
from 2026-05-21 to 2026-08-19
Expires in 80 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://jankolarik.com/

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

Links to (10)

Linked from (1)