indexo.dev

nap.cz

.cz crawl

First seen 2026-05-28 · Last seen 2026-05-30 · blocked crawled 2026-05-30

NL · 40.114.252.156 · AS8075 Microsoft Corporation

Reputation 87/100 crawler blocked no dmarc policy

robots.txt disallow

Registration

Registrar
REG-WEB4U
Created
2007-02-20
Expires
2027-02-19 263 days left
Updated
2010-05-01
Name servers
  • ns2.web4u.cz
  • ns.web4u.cz

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
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
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 a mx ptr include:_spf.web4u.cz ip4:81.91.85.6 ip4:89.185.245.50 ip4:81.91.92.134 ip4:194.212.79.47 ip4:87.236.195.14 include:_spf.google.com include:netdirect.cz include:sendgrid.me include:sendgrid.net ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-01 to 2026-06-30
Expires in 30 days

Full certificate history on crt.sh ↗

Linked from (2)