`mail.xpertnotes.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:df93^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:362a^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.54.42^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.223.147^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.54.42, 172.67.223.147
		IPv6 hints	2606:4700:3034::ac43:df93, 2606:4700:3036::6815:362a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=201, name=cloudflare-ech.com

`xpertnotes.net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`aria.ns.cloudflare.com` ⭐
	NS	`newt.ns.cloudflare.com`
	MX	`mail.hollandcomputers.com` ⭐
	TXT	`v=spf1 mx ip4:162.254.155.0/24 -all`
	SOA	`aria.ns.cloudflare.com`dns@cloudflare.com serial=2402661822

Previously MX for

xpertnotes.net

Same first word

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DNS History

6 records (4 active, 2 former)

●A104.21.54.422026-02-14 → 2026-04-26 · 3 obs

○ 2016-04-04 07:32:18
● 2026-02-14 21:49:16
● 2026-04-26 16:04:14

●A172.67.223.1472026-02-14 → 2026-04-26 · 3 obs

○ 2016-04-04 07:32:18
● 2026-02-14 21:49:16
● 2026-04-26 16:04:14

●A2606:4700:3034::ac43:df932026-02-14 → 2026-04-26 · 3 obs

○ 2016-04-04 07:32:18
● 2026-02-14 21:49:16
● 2026-04-26 16:04:14

●A2606:4700:3036::6815:362a2026-02-14 → 2026-04-26 · 3 obs

○ 2016-04-04 07:32:18
● 2026-02-14 21:49:16
● 2026-04-26 16:04:14

○A74.214.21.402015-05-29 → 2016-04-04 · 4 obs

● 2015-05-29 14:31:04
● 2016-04-04 07:32:18
○ 2026-02-14 21:49:16
○ 2026-04-26 16:04:14

○CNAMEmail.hollandcomputers.com2015-05-29 → 2026-02-15 · 4 obs

● 2015-05-29 14:31:04
● 2026-02-15 06:36:38
○ 2026-02-18 15:11:32
○ 2026-04-26 16:04:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
xpertnotes.net	aria.ns.cloudflare.com, newt.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.212

NS records: aria.ns.cloudflare.com, newt.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 222ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.223.147, 104.21.54.42`
AAAA	2	`2606:4700:3036::6815:362a, 2606:4700:3034::ac43:df93`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

mail.xpertnotes.net maps to four IP numbers: 2606:4700:3034::ac43:df93, 2606:4700:3036::6815:362a, 104.21.54.42 and 172.67.223.147.

other host names include ssv-donsbach.com, bsd-tok.click, 18c784bef084.szbtechs.com, 889993482.xyz and dziq.net; they share IP numbers with mail.xpertnotes.net.

mail.xpertnotes.net - robtex.com