`ubertpage.courses`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:15db^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:c8d2^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.21.219^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.200.210^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harvey.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c98^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c398^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harvey.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2398^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harvey.ns.cloudflare.com`
		A	108.162.195.152^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	162.159.44.152^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	172.64.35.152^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
NS	`jamie.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jamie.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jamie.ns.cloudflare.com`
		A	108.162.192.168^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
		A	172.64.32.168^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
		A	173.245.58.168^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jamie.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.21.219, 172.67.200.210
		IPv6 hints	2606:4700:3036::6815:15db, 2606:4700:3036::ac43:c8d2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=215, name=cloudflare-ech.com
SOA	`harvey.ns.cloudflare.com`dns@cloudflare.com serial=2408642070

`courses`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.courses` ⭐
	NS	`b.nic.courses`
	NS	`c.nic.courses`
	NS	`x.nic.courses`
	NS	`y.nic.courses`
	NS	`z.nic.courses`
	SOA	`a.nic.courses`admin@tldns.godaddy serial=1785588483

Same first word

ubertpage.help

ubertpage.courses

ubertpage.wiki

ubertpage.work

DNS History

8 records (6 active, 2 former)

●NSharvey.ns.cloudflare.com2026-06-10 → 2026-08-01 · 2 obs

● 2026-06-10 16:31:44
● 2026-08-01 13:05:14

●NSjamie.ns.cloudflare.com2026-06-10 → 2026-08-01 · 2 obs

● 2026-06-10 16:31:44
● 2026-08-01 13:05:14

●A104.21.21.2192026-06-10 → 2026-08-01 · 2 obs

● 2026-06-10 16:31:44
● 2026-08-01 13:05:14

●A172.67.200.2102026-06-10 → 2026-08-01 · 2 obs

● 2026-06-10 16:31:44
● 2026-08-01 13:05:14

○A2606:4700:3031::6815:15db2026-06-10 → 2026-06-11 · 4 obs

● 2026-06-10 16:31:44
● 2026-06-11 20:07:58
○ 2026-07-18 00:13:52
○ 2026-08-01 13:05:14

○A2606:4700:3032::ac43:c8d22026-06-10 → 2026-06-11 · 4 obs

● 2026-06-10 16:31:44
● 2026-06-11 20:07:58
○ 2026-07-18 00:13:52
○ 2026-08-01 13:05:14

●A2606:4700:3036::6815:15db2026-07-18 → 2026-08-01 · 3 obs

○ 2026-06-11 20:07:58
● 2026-07-18 00:13:52
● 2026-08-01 13:05:14

●A2606:4700:3036::ac43:c8d22026-07-18 → 2026-08-01 · 3 obs

○ 2026-06-11 20:07:58
● 2026-07-18 00:13:52
● 2026-08-01 13:05:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	z.nic.courses, b.nic.courses, x.nic.courses, y.nic.courses...	12 records
ubertpage.courses	jamie.ns.cloudflare.com, harvey.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.168

NS records: jamie.ns.cloudflare.com, harvey.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ubertpage.courses (unsigned zone)

⏱️ Timing

Total: 1694ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.21.219, 172.67.200.210`
AAAA	2	`2606:4700:3036::6815:15db, 2606:4700:3036::ac43:c8d2`
NS	2	`harvey.ns.cloudflare.com, jamie.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harvey.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (z.nic.courses, z.nic.courses, b.nic.courses...)

Analysis

IP Addresses

ubertpage.courses has four IP addresses: 104.21.21.219, 172.67.200.210, 2606:4700:3036::6815:15db and 2606:4700:3036::ac43:c8d2.

evigheden.dk, nirvanix.com, ns2.320kbit.net plus two other host names have IP numbers in common with ubertpage.courses.

Name Servers

ubertpage.courses has two authoritative name servers — harvey.ns.cloudflare.com and jamie.ns.cloudflare.com.

The name server configuration of ubertpage.courses is shared with other domains, for instance olamovies.mov, customerclub.xyz, invariablesprint.wiki and two others.

ubertpage.courses partially shares its NS delegation with several other domains, including hickoryhillsliving.com, smartxvillageridge.pro, businessdeploy.com and two others.

These name servers regularly co-occur with the name servers cris.ns.cloudflare.com, laylah.ns.cloudflare.com and alexandra.ns.cloudflare.com.

Hosts with 6 IP addresses each:

harvey.ns.cloudflare.com points to 108.162.195.152, 162.159.44.152, 172.64.35.152 and 3 other IP addresses.

jamie.ns.cloudflare.com points to 108.162.192.168, 172.64.32.168, 173.245.58.168 and 3 other IP addresses.

ubertpage.courses - robtex.com