`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` ⭐
		A	2606:4700:50::adf5:3a44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c044^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aria.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2044^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aria.ns.cloudflare.com`
		A	108.162.192.68^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	172.64.32.68^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	173.245.58.68^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
NS	`vern.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vern.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vern.ns.cloudflare.com`
		A	108.162.193.243^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	172.64.33.243^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	173.245.59.243^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`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

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774394827

Previously MX for

programminghorizon.com

Same first word

programminghorizon.com

DNS History

17 records (6 active, 11 former)

●NSaria.ns.cloudflare.com2026-02-15 → 2026-03-24 · 3 obs

○ 2017-06-03 07:27:26
● 2026-02-15 02:51:22
● 2026-03-24 23:51:24

○NSns1.iranhost.com2015-05-13 → 2015-05-13 · 4 obs

○ 2008-03-14 14:16:34
● 2015-05-13 15:40:50
○ 2015-10-11 13:58:06
○ 2026-03-24 23:51:24

○NSns1.shamsdata.com2016-11-08 → 2017-06-03 · 5 obs

○ 2016-04-12 04:23:20
● 2016-11-08 00:35:52
● 2017-06-03 07:27:26
○ 2026-02-15 02:51:22
○ 2026-03-24 23:51:24

○NSns2.iranhost.com2015-05-13 → 2015-05-13 · 4 obs

○ 2008-03-14 14:16:34
● 2015-05-13 15:40:50
○ 2015-10-11 13:58:06
○ 2026-03-24 23:51:24

○NSns2.shamsdata.com2016-11-08 → 2017-06-03 · 5 obs

○ 2016-04-12 04:23:20
● 2016-11-08 00:35:52
● 2017-06-03 07:27:26
○ 2026-02-15 02:51:22
○ 2026-03-24 23:51:24

○NSns81.iranhost.com2015-10-11 → 2016-04-12 · 5 obs

○ 2008-03-14 14:16:34
● 2015-10-11 13:58:06
● 2016-04-12 04:23:20
○ 2016-11-08 00:35:52
○ 2026-03-24 23:51:24

○NSns82.iranhost.com2015-10-11 → 2016-04-12 · 5 obs

○ 2008-03-14 14:16:34
● 2015-10-11 13:58:06
● 2016-04-12 04:23:20
○ 2016-11-08 00:35:52
○ 2026-03-24 23:51:24

●NSvern.ns.cloudflare.com2026-02-15 → 2026-03-24 · 3 obs

○ 2017-06-03 07:27:26
● 2026-02-15 02:51:22
● 2026-03-24 23:51:24

○MXmail.programminghorizon.com2015-05-13 → 2016-04-12 · 5 obs

○ 2008-03-14 14:16:34
● 2015-05-13 15:40:50
● 2016-04-12 04:23:20
○ 2016-11-08 00:35:52
○ 2026-03-24 23:51:24

○MXprogramminghorizon.com2016-11-08 → 2026-02-15 · 5 obs

○ 2016-04-12 04:23:20
● 2016-11-08 00:35:52
● 2026-02-15 02:51:22
○ 2026-02-17 14:16:42
○ 2026-03-24 23:51:24

●A104.21.30.2322026-02-15 → 2026-03-24 · 3 obs

○ 2017-06-03 07:27:26
● 2026-02-15 02:51:22
● 2026-03-24 23:51:24

●A172.67.173.2482026-02-15 → 2026-03-24 · 3 obs

○ 2017-06-03 07:27:26
● 2026-02-15 02:51:22
● 2026-03-24 23:51:24

●A2606:4700:3031::ac43:adf82026-02-15 → 2026-03-24 · 3 obs

○ 2017-06-03 07:27:26
● 2026-02-15 02:51:22
● 2026-03-24 23:51:24

●A2606:4700:3034::6815:1ee82026-02-15 → 2026-03-24 · 3 obs

○ 2017-06-03 07:27:26
● 2026-02-15 02:51:22
● 2026-03-24 23:51:24

○A70.38.40.2102015-10-11 → 2016-04-12 · 5 obs

○ 2008-03-14 14:16:34
● 2015-10-11 13:58:06
● 2016-04-12 04:23:20
○ 2016-11-08 00:35:52
○ 2026-03-24 23:51:24

○A70.38.92.2162015-05-13 → 2015-05-13 · 4 obs

○ 2008-03-14 14:16:34
● 2015-05-13 15:40:50
○ 2015-10-11 13:58:06
○ 2026-03-24 23:51:24

○A94.102.48.502016-11-08 → 2017-06-03 · 5 obs

○ 2016-04-12 04:23:20
● 2016-11-08 00:35:52
● 2017-06-03 07:27:26
○ 2026-02-15 02:51:22
○ 2026-03-24 23:51:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, e.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: 425ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.173.248, 104.21.30.232`
AAAA	2	`2606:4700:3034::6815:1ee8, 2606:4700:3031::ac43:adf8`
NS	2	`aria.ns.cloudflare.com, vern.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aria.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

programminghorizon.com resolves to four IP numbers: 2606:4700:3031::ac43:adf8, 2606:4700:3034::6815:1ee8, 104.21.30.232 and 172.67.173.248.

other host names for instance www.socaseiras.com.br, maugk.cn, cloud9businessapps.com, ns2.mandriva.com and btc.com.ua share IP numbers with programminghorizon.com.

Name Servers

programminghorizon.com is delegated to two name servers: aria.ns.cloudflare.com and vern.ns.cloudflare.com.

programminghorizon.com shares the same name server setup as other domains, for example videogamesindonesia.com, offnow.org, coastalsilkworms.com, projecttopics.org and meta-circle-o09.pages.dev.

programminghorizon.com at least partially shares name servers with other domains, for instance web-hosting.my.id, 19phjoin.com, webfisco.com, canadianpharmacy.solutions and tech-byte.net.

These name servers are commonly used with the name servers rosa.ns.cloudflare.com.

Host names with six IP numbers:

aria.ns.cloudflare.com points to: 2606:4700:50::adf5:3a44, 2803:f800:50::6ca2:c044, 2a06:98c1:50::ac40:2044, 108.162.192.68, 172.64.32.68 and 173.245.58.68; vern.ns.cloudflare.com points to: 2606:4700:58::adf5:3bf3, 2803:f800:50::6ca2:c1f3, 2a06:98c1:50::ac40:21f3, 108.162.193.243, 172.64.33.243 and 173.245.59.243.

programminghorizon.com - robtex.com