indexo.dev

apps4teachers.com

.com crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP 200 312 ms crawled 2026-06-02

DE · 167.233.3.24 · AS24940 Hetzner Online GmbH

Reputation 94/100 dmarc monitor-only

Registration

Registrar
Gransy, s.r.o.
Created
2020-02-10
Expires
2027-02-10 250 days left
Updated
2026-02-02
Name servers
  • ns.starlab.cz
  • nss.starlab.cz

DNS records live

NS
  • ns.starlab.cz
  • nss.starlab.cz
MX
  • 10 mail.apps4teachers.com

Email authentication partial

SPF
v=spf1 a mx ip4:167.233.3.24 ~all
softfail (~all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • mail: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDS5KpeRHSb4GYK4NQ3hRWFDd9W1kAbFuODmN2Ayx0gmZg1qKP1EvwTg1SqbWh9ZXc4GCUSK8KI3p8dIi4PoD…
selectors probed

Certificate (current)

R12
from 2026-05-16 to 2026-08-14
Expires in 70 days

Full certificate history on crt.sh ↗

Linked from (1)