bc.b4c.workers.dev - dns.ninja
bc.b4c.workers.dev
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3033::6815:449eπΊπΈ Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:c4a9πΊπΈ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.68.158Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.196.169πΊπΈ Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.68.158, 172.67.196.169 | ||||||
| IPv6 hints | 2606:4700:3033::6815:449e, 2606:4700:3036::ac43:c4a9 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=173, name=cloudflare-ech.com | ||||||
b4c.workers.dev
| DNSSEC | β οΈ Not signed | ||||||
| NS | erin.ns.cloudflare.com β | ||||||
| NS | kurt.ns.cloudflare.com | ||||||
| SOA | erin.ns.cloudflare.comdns@cloudflare.com serial=2409283043 | ||||||
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
βA104.21.68.1582026-04-10 β 2026-07-25 Β· 2 obs
β 2026-04-10 10:04:06
β 2026-07-25 08:19:08
β 2026-07-25 08:19:08
βA172.67.196.1692026-04-10 β 2026-07-25 Β· 2 obs
β 2026-04-10 10:04:06
β 2026-07-25 08:19:08
β 2026-07-25 08:19:08
βA2606:4700:3031::6815:449e2026-04-10 β 2026-06-14 Β· 4 obs
β 2026-04-10 10:04:06
β 2026-06-14 06:10:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
β 2026-06-14 06:10:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
βA2606:4700:3033::6815:449e2026-07-08 β 2026-07-25 Β· 3 obs
β 2026-06-14 06:10:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
βA2606:4700:3034::ac43:c4a92026-04-10 β 2026-06-14 Β· 4 obs
β 2026-04-10 10:04:06
β 2026-06-14 06:10:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
β 2026-06-14 06:10:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
βA2606:4700:3036::ac43:c4a92026-07-08 β 2026-07-25 Β· 3 obs
β 2026-06-14 06:10:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
β 2026-07-08 15:49:56
β 2026-07-25 08:19:08
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| workers.dev | clyde.ns.cloudflare.com, sofia.ns.cloudflare.com | - |
| b4c.workers.dev | erin.ns.cloudflare.com, kurt.ns.cloudflare.com | - |
β Authoritative Response
Server:172.64.32.113
NS records: erin.ns.cloudflare.com, kurt.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for workers.dev (unsigned zone)
β±οΈ Timing
Total: 384ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.196.169, 104.21.68.158 |
| AAAA | 2 | 2606:4700:3033::6815:449e, 2606:4700:3036::ac43:c4a9 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
IP Addresses
bc.b4c.workers.dev points to the four IP addresses 104.21.68.158, 172.67.196.169, 2606:4700:3033::6815:449e and 2606:4700:3036::ac43:c4a9.
cssdchina.com, elearning.vsu.edu.ph, www.airticketonsale.com and two other host names share IP numbers with bc.b4c.workers.dev.