`mail.ipsubnetzero.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:9486^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:b49^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.73^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.134^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.11.73, 172.67.148.134
		IPv6 hints	2606:4700:3034::ac43:9486, 2606:4700:3036::6815:b49
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=226, name=cloudflare-ech.com

`ipsubnetzero.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:9486^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:b49^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.73^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.134^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`linda.ns.cloudflare.com` ⭐
NS	`rob.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
MX	`aspmx2.googlemail.com`⁽⁴⁰⁾
MX	`aspmx3.googlemail.com`⁽⁵⁰⁾
TXT	`amazon-business-verification=aa42ab99e33d00ca0e25eddb37f8afcf690c5464acbfb303...`
TXT	`v=DMARC1; p=none; rua=mailto:support@ipsubnetzero.com;`
TXT	`v=spf1 mx include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.11.73, 172.67.148.134
		IPv6 hints	2606:4700:3034::ac43:9486, 2606:4700:3036::6815:b49
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=226, name=cloudflare-ech.com
SOA	`linda.ns.cloudflare.com`dns@cloudflare.com serial=2406286879

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DNS History

15 records (4 active, 11 former)

○NSns67.domaincontrol.com2015-12-11 → 2016-03-25 · 4 obs

● 2015-12-11 22:25:30
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

○NSns68.domaincontrol.com2015-12-11 → 2016-03-25 · 4 obs

● 2015-12-11 22:25:30
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

○MXalt1.aspmx.l.google.com2015-12-11 → 2016-03-25 · 4 obs

● 2015-12-11 22:25:30
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

○MXalt2.aspmx.l.google.com2015-12-11 → 2016-03-25 · 4 obs

● 2015-12-11 22:25:30
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

○MXaspmx.l.google.com2015-12-11 → 2016-03-25 · 4 obs

● 2015-12-11 22:25:30
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

○MXaspmx2.googlemail.com2015-12-11 → 2016-03-25 · 4 obs

● 2015-12-11 22:25:30
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

○MXaspmx3.googlemail.com2015-12-11 → 2016-03-25 · 4 obs

● 2015-12-11 22:25:30
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

●A104.21.11.732026-02-17 → 2026-07-15 · 3 obs

○ 2016-03-25 22:41:30
● 2026-02-17 11:06:12
● 2026-07-15 06:43:40

●A172.67.148.1342026-02-17 → 2026-07-15 · 3 obs

○ 2016-03-25 22:41:30
● 2026-02-17 11:06:12
● 2026-07-15 06:43:40

●A2606:4700:3034::ac43:94862026-07-09 → 2026-07-15 · 3 obs

○ 2026-06-17 01:01:20
● 2026-07-09 03:14:34
● 2026-07-15 06:43:40

○A2606:4700:3035::6815:b492026-02-17 → 2026-06-17 · 5 obs

○ 2016-03-25 22:41:30
● 2026-02-17 11:06:12
● 2026-06-17 01:01:20
○ 2026-07-09 03:14:34
○ 2026-07-15 06:43:40

○A2606:4700:3035::ac43:94862026-02-17 → 2026-06-17 · 5 obs

○ 2016-03-25 22:41:30
● 2026-02-17 11:06:12
● 2026-06-17 01:01:20
○ 2026-07-09 03:14:34
○ 2026-07-15 06:43:40

●A2606:4700:3036::6815:b492026-07-09 → 2026-07-15 · 3 obs

○ 2026-06-17 01:01:20
● 2026-07-09 03:14:34
● 2026-07-15 06:43:40

○A38.83.74.1332015-08-21 → 2016-03-25 · 4 obs

● 2015-08-21 06:59:46
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

○CNAMEipsubnetzero.com2015-08-21 → 2016-03-25 · 4 obs

● 2015-08-21 06:59:46
● 2016-03-25 22:41:30
○ 2026-02-17 11:06:12
○ 2026-07-15 06:43:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net, m.gtld-servers.net...	-
ipsubnetzero.com	rob.ns.cloudflare.com, linda.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.250

NS records: rob.ns.cloudflare.com, linda.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ipsubnetzero.com (unsigned zone)

⏱️ Timing

Total: 131ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.148.134, 104.21.11.73`
AAAA	2	`2606:4700:3036::6815:b49, 2606:4700:3034::ac43:9486`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.ipsubnetzero.com has four IP addresses: 104.21.11.73, 172.67.148.134, 2606:4700:3034::ac43:9486 and 2606:4700:3036::6815:b49.

platinumslots.com.de, megaofficecoffee.com, www.cameroncars.ie plus two other host names have IP numbers in common with mail.ipsubnetzero.com.

mail.ipsubnetzero.com - robtex.com