sentry.cbt.dev - robtex.com

sentry.cbt.dev

DNSSEC⚠️ Not signed
A138.249.21.4🇫🇮 Cloudflare138.249.21.0/24 ✓ In HTTPS hints
PTRcr.bot
A138.249.21.5🇫🇮 Cloudflare138.249.21.0/24 ✓ In HTTPS hints
A138.249.21.6🇫🇮 Cloudflare138.249.21.0/24 ✓ In HTTPS hints
HTTPSHTTP/2 ✓ hints match
IPv4 hints138.249.21.4, 138.249.21.5, 138.249.21.6

cbt.dev

DNSSEC⚠️ Not signed
NSjonah.ns.cloudflare.com ⭐
NSmarjory.ns.cloudflare.com
SOAjonah.ns.cloudflare.comdns@cloudflare.com serial=2402521918
⚠️ On DNS blocklist: pro, pro.plus, ultimate
📈 Tranco rank: #231,602

Same first word

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DNS History

7 records (3 active, 4 former)

A138.249.21.4138.249.21.5138.249.21.6104.18.2.181104.18.3.1812606:4700::6812:2b52606:4700::6812:3b5
○A104.18.2.1812026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28
○A104.18.3.1812026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28
●A138.249.21.42026-05-09 → 2026-05-09 · 2 obs
○ 2026-03-25 08:15:20
● 2026-05-09 19:42:28
●A138.249.21.52026-05-09 → 2026-05-09 · 2 obs
○ 2026-03-25 08:15:20
● 2026-05-09 19:42:28
●A138.249.21.62026-05-09 → 2026-05-09 · 2 obs
○ 2026-03-25 08:15:20
● 2026-05-09 19:42:28
○A2606:4700::6812:2b52026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28
○A2606:4700::6812:3b52026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
cbt.devmarjory.ns.cloudflare.com, jonah.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.193

NS records: marjory.ns.cloudflare.com, jonah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cbt.dev (unsigned zone)

⏱️ Timing

Total: 321ms | Queries: -

📄 Records

TypeCountSample Data
A3138.249.21.5, 138.249.21.6...
HTTPS1{"priority":1,"target":".","alpn":["h2"]

Analysis

IP Addresses

Three IP numbers are pointed to by sentry.cbt.dev: 138.249.21.4, 138.249.21.5 and 138.249.21.6.