sentry.cbt.dev - dns.ninja

`sentry.cbt.dev`

DNSSEC	⚠️ Not signed
A	138.249.21.4^{🇫🇮 Cloudflare138.249.21.0/24} ✓ In HTTPS hints
		PTR	`cr.bot`
A	138.249.21.5^{🇫🇮 Cloudflare138.249.21.0/24} ✓ In HTTPS hints
A	138.249.21.6^{🇫🇮 Cloudflare138.249.21.0/24} ✓ In HTTPS hints
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	138.249.21.4, 138.249.21.5, 138.249.21.6

`cbt.dev`

	DNSSEC	⚠️ Not signed
	NS	`jonah.ns.cloudflare.com` ⭐
	NS	`marjory.ns.cloudflare.com`
	SOA	`jonah.ns.cloudflare.com`dns@cloudflare.com serial=2405810177

⚠️ On DNS blocklist: pro, pro.plus, ultimate
📈 Tranco rank: #343,767

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DNS History

7 records (3 active, 4 former)

○A104.18.2.1812026-03-25 → 2026-03-25 · 3 obs

● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28
○ 2026-07-10 03:57:40

○A104.18.3.1812026-03-25 → 2026-03-25 · 3 obs

● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28
○ 2026-07-10 03:57:40

●A138.249.21.42026-05-09 → 2026-07-10 · 3 obs

○ 2026-03-25 08:15:20
● 2026-05-09 19:42:28
● 2026-07-10 03:57:40

●A138.249.21.52026-05-09 → 2026-07-10 · 3 obs

○ 2026-03-25 08:15:20
● 2026-05-09 19:42:28
● 2026-07-10 03:57:40

●A138.249.21.62026-05-09 → 2026-07-10 · 3 obs

○ 2026-03-25 08:15:20
● 2026-05-09 19:42:28
● 2026-07-10 03:57:40

○A2606:4700::6812:2b52026-03-25 → 2026-03-25 · 3 obs

● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28
○ 2026-07-10 03:57:40

○A2606:4700::6812:3b52026-03-25 → 2026-03-25 · 3 obs

● 2026-03-25 08:15:20
○ 2026-05-09 19:42:28
○ 2026-07-10 03:57:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
cbt.dev	marjory.ns.cloudflare.com, jonah.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.193

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: 196ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`138.249.21.4, 138.249.21.5...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`

Analysis

IP Addresses

sentry.cbt.dev points to three IP numbers, namely 138.249.21.4, 138.249.21.5 and 138.249.21.6.