b2bcortex.dev - robtex.com
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 | 104.21.74.220Cloudflare104.21.64.0/20 , 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:2c78Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 2803:f800:50::6ca2:c378Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| A | 2a06:98c1:50::ac40:2378Cloudflare2a06:98c1:50::/45 | ||||||
| A | 108.162.195.120Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 162.159.44.120Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.35.120Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | yolanda.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3af1Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 2803:f800:50::6ca2:c0f1Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| A | 2a06:98c1:50::ac40:20f1Cloudflare2a06:98c1:50::/45 | ||||||
| A | 108.162.192.241Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.32.241Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 173.245.58.241Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| 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=210, name=cloudflare-ech.com | ||||||
| SOA | amos.ns.cloudflare.comdns@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.comcloud-dns-hostmaster@google.com serial=1 | ||||||
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
DNS History
6 records (6 active, 0 former)
●NSamos.ns.cloudflare.com2026-10-24 → 2026-10-29 · 2 obs
● 2026-10-29 14:52:30
●NSyolanda.ns.cloudflare.com2026-10-24 → 2026-10-29 · 2 obs
● 2026-10-29 14:52:30
●A104.21.74.2202026-10-25 → 2026-10-29 · 2 obs
● 2026-10-29 14:52:30
●A172.67.163.2132026-10-25 → 2026-10-29 · 2 obs
● 2026-10-29 14:52:30
●A2606:4700:3032::6815:4adc2026-10-25 → 2026-10-29 · 2 obs
● 2026-10-29 14:52:30
●A2606:4700:3037::ac43:a3d52026-10-25 → 2026-10-29 · 2 obs
● 2026-10-29 14:52:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| b2bcortex.dev | amos.ns.cloudflare.com, yolanda.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.120
NS records: amos.ns.cloudflare.com, yolanda.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1609ms | 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 directs to four IP numbers, which are 104.21.74.220, 172.67.163.213, 2606:4700:3032::6815:4adc and 2606:4700:3037::ac43:a3d5.
Name Servers
b2bcortex.dev uses two name servers for its delegation: amos.ns.cloudflare.com and yolanda.ns.cloudflare.com.
b2bcortex.dev shares the same name server setup with other domains, for instance torstenkaldun.workers.dev, modern-medicine.pages.dev, amc7i9dkxgzsv632.pages.dev and two other.
b2bcortex.dev at least partially shares name servers with other domains, for instance sentinelengineering.com.au, specamrealnee1972.workers.dev, khwarizmiacademy.uz and two other.
These name servers are often used together with the name servers millie.ns.cloudflare.com, dayana.ns.cloudflare.com, kristin.ns.cloudflare.com and 3 other.
Hostnames that resolve to 6 IP addresses:
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.