mail.mathnotes.cc - dns.ninja

`mail.mathnotes.cc`

DNSSEC	⚠️ Not signed
A	46.62.144.45^{🇩🇪 Hetzner46.62.128.0/17 HETZNER-DC}
		PTR	`mail.mathnotes.cc`
TXT	`v=spf1 a ra=postmaster -all`

`mathnotes.cc`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:cb78^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:1651^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.22.81^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.203.120^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`celeste.ns.cloudflare.com` ⭐
NS	`eric.ns.cloudflare.com`
MX	`mail.mathnotes.cc` ⭐
TXT	`v=spf1 mx ra=postmaster -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.22.81, 172.67.203.120
		IPv6 hints	2606:4700:3030::ac43:cb78, 2606:4700:3036::6815:1651
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=129, name=cloudflare-ech.com
SOA	`celeste.ns.cloudflare.com`dns@cloudflare.com serial=2405492632

PTR for

45.144.62.46.in-addr.arpa

MX for

mathnotes.cc

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DNS History

1 record (1 active, 0 former)

●A46.62.144.452026-06-14 → 2026-06-14 · 2 obs

● 2026-06-14 11:20:54
● 2026-06-14 17:11:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cc	ac3.nstld.com, ac1.nstld.com, ac2.nstld.com, ac4.nstld.com	-
mathnotes.cc	celeste.ns.cloudflare.com, eric.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.112

NS records: celeste.ns.cloudflare.com, eric.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathnotes.cc (unsigned zone)

⏱️ Timing

Total: 239ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.62.144.45`
TXT	1	`v=spf1 a ra=postmaster -all`

Analysis

Mail Server Role

mail.mathnotes.cc serves as a mail server for mathnotes.cc.

IP Addresses

mail.mathnotes.cc points to a single IP number: 46.62.144.45.