`mail.holbert.com.mx`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:14e^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:80c9^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.78^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.201^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.21.1.78, 172.67.128.201
		IPv6 hints	2606:4700:3031::6815:14e, 2606:4700:3034::ac43:80c9
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com

`holbert.com.mx`

	DNSSEC	⚠️ Not signed
	A	35.212.9.218^{🇺🇸 Google35.212.0.0/17}
	NS	`kiki.ns.cloudflare.com` ⭐
	NS	`rudy.ns.cloudflare.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`google-site-verification=5tgYZBOWJ8NEFcTAv5BS7i_Fya1FXe3J6NB-TTWbr7I`
	TXT	`v=spf1 include:spf.hostmar.com include:_spf.google.com ~all`
	SOA	`kiki.ns.cloudflare.com`dns@cloudflare.com serial=2399377474

Previously MX for

holbert.com.mx

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DNS History

5 records (4 active, 1 former)

●A104.21.1.782026-02-26 → 2026-04-12 · 3 obs

○ 2017-05-14 02:46:38
● 2026-02-26 11:40:20
● 2026-04-12 07:57:00

●A172.67.128.2012026-02-26 → 2026-04-12 · 3 obs

○ 2017-05-14 02:46:38
● 2026-02-26 11:40:20
● 2026-04-12 07:57:00

○A200.58.113.2412017-05-14 → 2017-05-14 · 3 obs

● 2017-05-14 02:46:38
○ 2026-02-26 11:40:20
○ 2026-04-12 07:57:00

●A2606:4700:3031::6815:14e2026-02-26 → 2026-04-12 · 3 obs

○ 2017-05-14 02:46:38
● 2026-02-26 11:40:20
● 2026-04-12 07:57:00

●A2606:4700:3034::ac43:80c92026-02-26 → 2026-04-12 · 3 obs

○ 2017-05-14 02:46:38
● 2026-02-26 11:40:20
● 2026-04-12 07:57:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
mx	c.mx-ns.mx, e.mx-ns.mx, i.mx-ns.mx, m.mx-ns.mx...	-
holbert.com.mx	rudy.ns.cloudflare.com, kiki.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.180

NS records: rudy.ns.cloudflare.com, kiki.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for holbert.com.mx (unsigned zone)

⏱️ Timing

Total: 362ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.78, 172.67.128.201`
AAAA	2	`2606:4700:3031::6815:14e, 2606:4700:3034::ac43:80c9`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`

Analysis

IP Addresses

mail.holbert.com.mx maps to four IP numbers: 2606:4700:3031::6815:14e, 2606:4700:3034::ac43:80c9, 104.21.1.78 and 172.67.128.201.

Other host names, for instance www.vitez.info, 7figureautomation.com, thena-fi.eu, newsjetstream.com and octboot.com share IP numbers with mail.holbert.com.mx.

mail.holbert.com.mx - robtex.com