`programmerteach.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:bf68^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:4c4e^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.76.78^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.191.104^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`penny.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:267c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`penny.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c27c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`penny.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:227c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`penny.ns.cloudflare.com`
		A	108.162.194.124^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`penny.ns.cloudflare.com`
		A	162.159.38.124^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`penny.ns.cloudflare.com`
		A	172.64.34.124^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`penny.ns.cloudflare.com`
NS	`ryan.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ce5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ryan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3e5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ryan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23e5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ryan.ns.cloudflare.com`
		A	108.162.195.229^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ryan.ns.cloudflare.com`
		A	162.159.44.229^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ryan.ns.cloudflare.com`
		A	172.64.35.229^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ryan.ns.cloudflare.com`
TXT	`google-site-verification=tzwn4v3XpRsMXfBgPU46k23NHoIR0ZpoNaj5APRFXUk`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.76.78, 172.67.191.104
		IPv6 hints	2606:4700:3030::ac43:bf68, 2606:4700:3034::6815:4c4e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=64, name=cloudflare-ech.com
SOA	`penny.ns.cloudflare.com`dns@cloudflare.com serial=2405615776

`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=1780716086

Same first word

programmerteach.com

DNS History

6 records (6 active, 0 former)

●NSpenny.ns.cloudflare.com2026-06-02 → 2026-06-06 · 2 obs

● 2026-06-02 01:06:26
● 2026-06-06 03:38:48

●NSryan.ns.cloudflare.com2026-06-02 → 2026-06-06 · 2 obs

● 2026-06-02 01:06:26
● 2026-06-06 03:38:48

●A104.21.76.782026-06-02 → 2026-06-06 · 2 obs

● 2026-06-02 01:06:26
● 2026-06-06 03:38:48

●A172.67.191.1042026-06-02 → 2026-06-06 · 2 obs

● 2026-06-02 01:06:26
● 2026-06-06 03:38:48

●A2606:4700:3030::ac43:bf682026-06-02 → 2026-06-06 · 2 obs

● 2026-06-02 01:06:26
● 2026-06-06 03:38:48

●A2606:4700:3034::6815:4c4e2026-06-02 → 2026-06-06 · 2 obs

● 2026-06-02 01:06:26
● 2026-06-06 03:38:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
programmerteach.com	penny.ns.cloudflare.com, ryan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.229

NS records: penny.ns.cloudflare.com, ryan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programmerteach.com (unsigned zone)

⏱️ Timing

Total: 184ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.191.104, 104.21.76.78`
AAAA	2	`2606:4700:3034::6815:4c4e, 2606:4700:3030::ac43:bf68`
NS	2	`penny.ns.cloudflare.com, ryan.ns.cloudflare.com`
TXT	1	`google-site-verification=tzwn4v3XpRsMXfB`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`penny.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

programmerteach.com has 4 IP addresses: 104.21.76.78, 172.67.191.104, 2606:4700:3030::ac43:bf68 and 2606:4700:3034::6815:4c4e.

wahajah-ksa.com, malerikonsult.com, panel.mansab.org and two other host names share IP numbers with programmerteach.com.

Name Servers

programmerteach.com has two authoritative name servers — penny.ns.cloudflare.com and ryan.ns.cloudflare.com.

programmerteach.com uses the same name servers as several other domains — among them dev-store.info, taylor.tv, it-matrix.net and two more.

programmerteach.com has at least partial name server overlap with other domains, such as schweizcasino.online, wan2.online, thikrin.org and two others.

It is common to find these name servers paired with the name servers evelyn.ns.cloudflare.com, donald.ns.cloudflare.com, jonah.ns.cloudflare.com and roxy.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

penny.ns.cloudflare.com has IP addresses 108.162.194.124, 162.159.38.124, 172.64.34.124 plus three more.

ryan.ns.cloudflare.com has IP addresses 108.162.195.229, 162.159.44.229, 172.64.35.229 plus three more.

programmerteach.com - robtex.com