ns2.math4s.com - dns.ninja

ns2.math4s.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:9048🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:5f66🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.95.102Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.72🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.95.102, 172.67.144.72
IPv6 hints2606:4700:3031::ac43:9048, 2606:4700:3033::6815:5f66
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=187, name=cloudflare-ech.com

math4s.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:9048🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:5f66🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.95.102Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.72🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdahlia.ns.cloudflare.com ⭐
NSsullivan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.95.102, 172.67.144.72
IPv6 hints2606:4700:3031::ac43:9048, 2606:4700:3033::6815:5f66
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=187, name=cloudflare-ech.com
SOAdahlia.ns.cloudflare.comdns@cloudflare.com serial=2409108679

Previously NS for

math4s.com

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DNS History

5 records (4 active, 1 former)

201820192020202120222023202420252026A104.21.95.102172.67.144.722606:4700:3031::ac43:90482606:4700:3033::6815:5f66173.239.2.188
●A104.21.95.1022026-08-07 → 2026-08-07 · 2 obs
○ 2017-03-23 18:21:58
● 2026-08-07 22:56:46
●A172.67.144.722026-08-07 → 2026-08-07 · 2 obs
○ 2017-03-23 18:21:58
● 2026-08-07 22:56:46
○A173.239.2.1882017-03-23 → 2017-03-23 · 2 obs
● 2017-03-23 18:21:58
○ 2026-08-07 22:56:46
●A2606:4700:3031::ac43:90482026-08-07 → 2026-08-07 · 2 obs
○ 2017-03-23 18:21:58
● 2026-08-07 22:56:46
●A2606:4700:3033::6815:5f662026-08-07 → 2026-08-07 · 2 obs
○ 2017-03-23 18:21:58
● 2026-08-07 22:56:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...-
math4s.comdahlia.ns.cloudflare.com, sullivan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.161

NS records: dahlia.ns.cloudflare.com, sullivan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for math4s.com (unsigned zone)

⏱️ Timing

Total: 117ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.95.102, 172.67.144.72
AAAA22606:4700:3033::6815:5f66, 2606:4700:3031::ac43:9048
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dahlia.ns.cloudflare.com, dahlia.ns.cloudflare.com, dahlia.ns.cloudflare.com...)

Analysis

IP Addresses

ns2.math4s.com has four IP addresses: 104.21.95.102, 172.67.144.72, 2606:4700:3031::ac43:9048 and 2606:4700:3033::6815:5f66.

Two other host names, along with 543640.com, anti-virus.net and visadirect.com, also share IP numbers with ns2.math4s.com.