b2bcortex.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`b2bcortex.dev`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3032::6815:4adc^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:a3d5^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.74.220^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.163.213^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amos.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c78^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c378^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amos.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2378^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amos.ns.cloudflare.com`
		A	108.162.195.120^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
		A	162.159.44.120^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
		A	172.64.35.120^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amos.ns.cloudflare.com`
NS	`yolanda.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yolanda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yolanda.ns.cloudflare.com`
		A	108.162.192.241^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
		A	172.64.32.241^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
		A	173.245.58.241^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.74.220, 172.67.163.213
		IPv6 hints	2606:4700:3032::6815:4adc, 2606:4700:3037::ac43:a3d5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=69, name=cloudflare-ech.com
SOA	`amos.ns.cloudflare.com`dns@cloudflare.com serial=2418348597

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

b2bcortex.com

b2bcortex.dev

Previous names

b20.dev

b2001.dev

b21.dev

b22.dev

b23.dev

b24.dev

b24studios.dev

b25.dev

b263.dev

b27.dev

b28.dev

b29.dev

b2901.dev

b2ai.dev

b2b-agent.dev

b2b-alive.dev

b2b-ict.dev

b2b.dev

b2baccess.dev

b2bc.dev

Next names

b2bcs.dev

b2bdirect.dev

b2bify.dev

b2bii.dev

b2bit.dev

b2biz.dev

b2bnet.dev

b2broker.dev

b2bstaging.dev

b2btoolbox.dev

b2built.dev

b2bwebsites.dev

b2bytes.dev

b2c.dev

b2code.dev

b2dcore.dev

b2e.dev

b2evandro.dev

b2gan.dev

b2global.dev

DNS History

6 records (6 active, 0 former)

●NSamos.ns.cloudflare.com2026-10-24 → 2026-11-03 · 2 obs

● 2026-10-24 13:50:52
● 2026-11-03 11:37:44

●NSyolanda.ns.cloudflare.com2026-10-24 → 2026-11-03 · 2 obs

● 2026-10-24 13:50:52
● 2026-11-03 11:37:44

●A104.21.74.2202026-10-25 → 2026-11-03 · 2 obs

● 2026-10-25 22:59:50
● 2026-11-03 11:37:44

●A172.67.163.2132026-10-25 → 2026-11-03 · 2 obs

● 2026-10-25 22:59:50
● 2026-11-03 11:37:44

●A2606:4700:3032::6815:4adc2026-10-25 → 2026-11-03 · 2 obs

● 2026-10-25 22:59:50
● 2026-11-03 11:37:44

●A2606:4700:3037::ac43:a3d52026-10-25 → 2026-11-03 · 2 obs

● 2026-10-25 22:59:50
● 2026-11-03 11:37:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
b2bcortex.dev	yolanda.ns.cloudflare.com, amos.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.241

NS records: yolanda.ns.cloudflare.com, amos.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1406ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.74.220, 172.67.163.213`
AAAA	2	`2606:4700:3037::ac43:a3d5, 2606:4700:3032::6815:4adc`
NS	2	`amos.ns.cloudflare.com, yolanda.ns.cloudflare.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amos.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

b2bcortex.dev points to the four IP addresses 104.21.74.220, 172.67.163.213, 2606:4700:3032::6815:4adc and 2606:4700:3037::ac43:a3d5.

Additional host names — dhlocks.cn, 33697689.eu.org, paulskilleterarchive.co.uk and two others — share IP numbers with b2bcortex.dev.

Name Servers

b2bcortex.dev uses two name servers for its delegation: amos.ns.cloudflare.com and yolanda.ns.cloudflare.com.

b2bcortex.dev shares its name server setup with other domains, including torstenkaldun.workers.dev, modern-medicine.pages.dev, amc7i9dkxgzsv632.pages.dev and two others.

At least some of b2bcortex.dev's name servers are shared with other domains, for example demo-citas-susomoreno.pages.dev, sentinelengineering.com.au, specamrealnee1972.workers.dev and two more.

These name servers tend to be deployed in combination with the name servers millie.ns.cloudflare.com and dayana.ns.cloudflare.com.

Host names with 6 IP numbers:

Hostname amos.ns.cloudflare.com directs to 108.162.195.120, 162.159.44.120 and 172.64.35.120 along with 3 other IP addresses.

Hostname yolanda.ns.cloudflare.com directs to 108.162.192.241, 172.64.32.241 and 173.245.58.241 along with 3 other IP addresses.