relay.o2bs.com - robtex.com

relay.o2bs.com

DNSSEC⚠️ Not signed
A194.228.122.18🇨🇿 O2-CZECH-REPUBLIC194.228.0.0/17 CZ.CZNET
PTRrelay.o2bs.com

o2bs.com

DNSSEC⚠️ Not signed
A194.228.122.168🇨🇿 O2-CZECH-REPUBLIC194.228.0.0/17 CZ.CZNET
NSdns.iol.cz ⭐
NSns2.tel.cz
MXsmtp-in.o2its.cz ⭐
TXTMS=ms71005443
TXTVpqrv6jdqSNBG4VreHj1D2o5A5wa1lJDRKJ7NdnSxcMF/21uU0w3epeUdDi2ihaLX3E1wJfN52zWC...
TXTq7ACHJ+zYk4tVRo29t3seumrijx3Css3h4jdcP6+7LEzCdlO6JXs3cWhe97bt14sMsU0nwkWTOnEW...
TXTv=spf1 ip4:160.218.161.71 ip4:160.218.11.33 ip4:160.218.161.73 ip4:160.218.11...
SOAdns.iol.czhostmaster@iol.cz 2025-06-17 #1

PTR for

18.122.228.194.in-addr.arpa

MX for

ictm.cz
deltax.cz
carcontrol.cz

Previously MX for

o2bs.com

Same first word

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relay.run
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early.co
arley.ru
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layer.dk

DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A194.228.122.18
●A194.228.122.182015-07-25 → 2026-04-04 · 2 obs
● 2015-07-25 03:55:00
● 2026-04-04 16:39:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
o2bs.comdns.iol.cz, ns2.tel.cz-

✅ Authoritative Response

Server:194.228.2.1

NS records: dns.iol.cz, ns2.tel.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for o2bs.com (unsigned zone)

⏱️ Timing

Total: 813ms | Queries: -

📄 Records

TypeCountSample Data
A1194.228.122.18

Analysis

Mail Server Role

relay.o2bs.com serves as the mail server for ictm.cz, deltax.cz and carcontrol.cz.

IP Addresses

relay.o2bs.com points to a single IP address: 194.228.122.18.

Other host names, for instance smtp.o2services.cz, share IP numbers with relay.o2bs.com.