`mail.programminghorizon.com`

DNSSEC

⚠️ Not signed

`programminghorizon.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:adf8^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:1ee8^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.30.232^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.173.248^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aria.ns.cloudflare.com` ⭐
NS	`vern.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.30.232, 172.67.173.248
		IPv6	2606:4700:3031::ac43:adf8, 2606:4700:3034::6815:1ee8
SOA	`aria.ns.cloudflare.com`dns@cloudflare.com serial=2397855155

Previously MX for

programminghorizon.com

Same first word

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DNS History

6 records (0 active, 6 former)

○NSns1.shamsdata.com2016-09-08 → 2016-09-08 · 2 obs

● 2016-09-08 19:28:46
○ 2026-03-25 02:53:34

○NSns2.shamsdata.com2016-09-08 → 2016-09-08 · 2 obs

● 2016-09-08 19:28:46
○ 2026-03-25 02:53:34

○MXprogramminghorizon.com2016-09-08 → 2016-09-08 · 2 obs

● 2016-09-08 19:28:46
○ 2026-03-25 02:53:34

○A174.142.210.2172015-08-14 → 2016-03-12 · 4 obs

● 2015-08-14 11:20:36
● 2016-03-12 02:07:28
○ 2016-09-08 19:28:46
○ 2026-03-25 02:53:34

○A94.102.48.502016-09-08 → 2016-09-08 · 3 obs

○ 2016-03-12 02:07:28
● 2016-09-08 19:28:46
○ 2026-03-25 02:53:34

○CNAMEprogramminghorizon.com2016-09-08 → 2016-09-08 · 2 obs

● 2016-09-08 19:28:46
○ 2026-03-25 02:53:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, f.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net...	-
programminghorizon.com	aria.ns.cloudflare.com, vern.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.243

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programminghorizon.com (unsigned zone)

⏱️ Timing

Total: 100ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

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

mail.programminghorizon.com - robtex.com