null.kotbc2.com - robtex.com
null.kotbc2.com
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3033::6815:5bdfπΊπΈ Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:b4d3πΊπΈ Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.91.223Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.180.211πΊπΈ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.91.223, 172.67.180.211 | ||||||
| IPv6 hints | 2606:4700:3033::6815:5bdf, 2606:4700:3033::ac43:b4d3 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com | ||||||
kotbc2.com
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3033::6815:5bdfπΊπΈ Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:b4d3πΊπΈ Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.91.223Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.180.211πΊπΈ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | bart.ns.cloudflare.com β | ||||||
| NS | desi.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.91.223, 172.67.180.211 | ||||||
| IPv6 hints | 2606:4700:3033::6815:5bdf, 2606:4700:3033::ac43:b4d3 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com | ||||||
| SOA | bart.ns.cloudflare.comdns@cloudflare.com serial=2410640483 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
βA104.21.91.2232026-06-28 β 2026-08-02 Β· 2 obs
β 2026-06-28 14:53:58
β 2026-08-02 11:20:36
β 2026-08-02 11:20:36
βA172.67.180.2112026-06-28 β 2026-08-02 Β· 2 obs
β 2026-06-28 14:53:58
β 2026-08-02 11:20:36
β 2026-08-02 11:20:36
βA2606:4700:3033::6815:5bdf2026-06-28 β 2026-08-02 Β· 2 obs
β 2026-06-28 14:53:58
β 2026-08-02 11:20:36
β 2026-08-02 11:20:36
βA2606:4700:3033::ac43:b4d32026-06-28 β 2026-08-02 Β· 2 obs
β 2026-06-28 14:53:58
β 2026-08-02 11:20:36
β 2026-08-02 11:20:36
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| kotbc2.com | bart.ns.cloudflare.com, desi.ns.cloudflare.com | 12 records |
β Authoritative Response
Server:108.162.193.71
NS records: bart.ns.cloudflare.com, desi.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for kotbc2.com (unsigned zone)
β±οΈ Timing
Total: 88ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.180.211, 104.21.91.223 |
| AAAA | 2 | 2606:4700:3033::6815:5bdf, 2606:4700:3033::ac43:b4d3 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
π Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (bart.ns.cloudflare.com, bart.ns.cloudflare.com, bart.ns.cloudflare.com...)
Analysis
IP Addresses
null.kotbc2.com directs to four IP numbers, which are 104.21.91.223, 172.67.180.211, 2606:4700:3033::6815:5bdf and 2606:4700:3033::ac43:b4d3.
Two other host names, along with gelukkigzijn.net, www.purecleanoffice.com and finec-pskov.ru, also share IP numbers with null.kotbc2.com.