`dev.conference.learningtech.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:b89d^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:487b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.72.123^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.184.157^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.72.123, 172.67.184.157
		IPv6 hints	2606:4700:3034::ac43:b89d, 2606:4700:3035::6815:487b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com

`conference.learningtech.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:b89d^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:487b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.72.123^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.184.157^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.72.123, 172.67.184.157
		IPv6 hints	2606:4700:3034::ac43:b89d, 2606:4700:3035::6815:487b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com

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DNS History

11 records (4 active, 7 former)

●A104.21.72.1232026-03-27 → 2026-08-06 · 3 obs

○ 2021-10-04 17:26:38
● 2026-03-27 20:13:16
● 2026-08-06 03:04:00

●A172.67.184.1572026-03-27 → 2026-08-06 · 3 obs

○ 2021-10-04 17:26:38
● 2026-03-27 20:13:16
● 2026-08-06 03:04:00

○A188.114.96.02026-03-27 → 2026-08-06 · 2 obs

○ 2026-03-27 20:13:16
○ 2026-08-06 03:04:00

○A188.114.97.02026-03-27 → 2026-08-06 · 2 obs

○ 2026-03-27 20:13:16
○ 2026-08-06 03:04:00

○A205.154.84.331970-01-01 → 1970-01-01 · 3 obs

● 1970-01-01 00:00:00
○ 2021-10-04 17:26:38
○ 2026-08-06 03:04:00

○A2606:4700:3031::6815:487b2026-03-27 → 2026-03-27 · 4 obs

○ 2021-10-04 17:26:38
● 2026-03-27 20:13:16
○ 2026-07-12 22:17:18
○ 2026-08-06 03:04:00

●A2606:4700:3034::ac43:b89d2026-07-12 → 2026-08-06 · 3 obs

○ 2026-03-27 20:13:16
● 2026-07-12 22:17:18
● 2026-08-06 03:04:00

●A2606:4700:3035::6815:487b2026-07-12 → 2026-08-06 · 3 obs

○ 2026-03-27 20:13:16
● 2026-07-12 22:17:18
● 2026-08-06 03:04:00

○A2606:4700:3037::ac43:b89d2026-03-27 → 2026-03-27 · 4 obs

○ 2021-10-04 17:26:38
● 2026-03-27 20:13:16
○ 2026-07-12 22:17:18
○ 2026-08-06 03:04:00

○A2a06:98c1:3120::2026-03-27 → 2026-08-06 · 2 obs

○ 2026-03-27 20:13:16
○ 2026-08-06 03:04:00

○A2a06:98c1:3121::2026-03-27 → 2026-08-06 · 2 obs

○ 2026-03-27 20:13:16
○ 2026-08-06 03:04:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
learningtech.net	arnold.ns.cloudflare.com, nicole.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.69

NS records: arnold.ns.cloudflare.com, nicole.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 470ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.184.157, 104.21.72.123`
AAAA	2	`2606:4700:3035::6815:487b, 2606:4700:3034::ac43:b89d`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

dev.conference.learningtech.net directs to four IP numbers, which are 104.21.72.123, 172.67.184.157, 2606:4700:3034::ac43:b89d and 2606:4700:3035::6815:487b.

Two other host names, along with footballidiot.com, canadaholidaykings.com and dentalimplantshonolulu.org, also share IP numbers with dev.conference.learningtech.net.

dev.conference.learningtech.net - robtex.com