server.costbook.com - robtex.com

server.costbook.com

DNSSEC⚠️ Not signed
A40.83.190.238🇺🇸 Microsoft40.80.0.0/12

costbook.com

DNSSEC⚠️ Not signed
NSns1.dotster.com ⭐
NSns2.dotster.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXTmailerlite-domain-verification=6c3f724811c0cade6259a23143662dbeb6be6958
TXTMS=ms44226625
TXTv=spf1 include:_spf.mlsend.com a mx ip4:66.96.128.0/18 ip4:40.83.190.238/32 i...
SOANS1.DOTSTER.comnamehost@WORLDNIC.com serial=125111617

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DNS History

1 record (1 active, 0 former)

2017201820192020202120222023202420252026A40.83.190.238
●A40.83.190.2382016-03-27 → 2026-04-14 · 2 obs
● 2016-03-27 07:13:20
● 2026-04-14 10:36:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net...-
costbook.comns1.dotster.com, ns2.dotster.com2 records

✅ Authoritative Response

Server:172.64.52.250

NS records: ns1.dotster.com, ns2.dotster.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for costbook.com (unsigned zone)

⏱️ Timing

Total: 160ms | Queries: -

📄 Records

TypeCountSample Data
A140.83.190.238

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dotster.com, ns2.dotster.com)

Analysis

IP Addresses

server.costbook.com resolves to a single IP address: 40.83.190.238.