`alkbufye.courses`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:b29d^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:11df^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.17.223^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.178.157^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`louis.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`louis.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c359^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`louis.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2359^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`louis.ns.cloudflare.com`
		A	108.162.195.89^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`louis.ns.cloudflare.com`
		A	162.159.44.89^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`louis.ns.cloudflare.com`
		A	172.64.35.89^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`louis.ns.cloudflare.com`
NS	`mckenzie.ns.cloudflare.com`
		A	2606:4700:50::a29f:26fd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mckenzie.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2fd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mckenzie.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22fd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mckenzie.ns.cloudflare.com`
		A	108.162.194.253^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mckenzie.ns.cloudflare.com`
		A	162.159.38.253^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mckenzie.ns.cloudflare.com`
		A	172.64.34.253^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mckenzie.ns.cloudflare.com`
TXT	`google-site-verification=Vhp80Agoy-xQrC-meKwgnHErU0qpC8aApkjZRylstXM`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.17.223, 172.67.178.157
		IPv6	2606:4700:3031::ac43:b29d, 2606:4700:3034::6815:11df
SOA	`louis.ns.cloudflare.com`dns@cloudflare.com serial=2396813460

`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=1774678184

⚠️ On DNS blocklist: tif

Same first word

alkbufye.courses

DNS History

6 records (6 active, 0 former)

●NSlouis.ns.cloudflare.com2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 13:40:24
● 2026-03-28 06:48:32

●NSmckenzie.ns.cloudflare.com2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 13:40:24
● 2026-03-28 06:48:32

●A104.21.17.2232026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 13:40:24
● 2026-03-28 06:48:32

●A172.67.178.1572026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 13:40:24
● 2026-03-28 06:48:32

●A2606:4700:3031::ac43:b29d2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 13:40:24
● 2026-03-28 06:48:32

●A2606:4700:3034::6815:11df2026-02-15 → 2026-03-28 · 2 obs

● 2026-02-15 13:40:24
● 2026-03-28 06:48:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	y.nic.courses, x.nic.courses, c.nic.courses, a.nic.courses...	12 records
alkbufye.courses	mckenzie.ns.cloudflare.com, louis.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.89

NS records: mckenzie.ns.cloudflare.com, louis.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for alkbufye.courses (unsigned zone)

⏱️ Timing

Total: 315ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.178.157, 104.21.17.223`
AAAA	2	`2606:4700:3034::6815:11df, 2606:4700:3031::ac43:b29d`
NS	2	`louis.ns.cloudflare.com, mckenzie.ns.cloudflare.com`
TXT	1	`google-site-verification=Vhp80Agoy-xQrC-`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`louis.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

alkbufye.courses maps to four IP numbers: 2606:4700:3031::ac43:b29d, 2606:4700:3034::6815:11df, 104.21.17.223 and 172.67.178.157.

other host names include kingspec.com.br, k40.ru, smarterguest.com, novonetempresaspj.app and sga-microvip88.xyz; they share IP numbers with alkbufye.courses.

Name Servers

Two name servers louis.ns.cloudflare.com and mckenzie.ns.cloudflare.com handle the delegation for alkbufye.courses.

alkbufye.courses shares the same name server setup as other domains, for instance ryrydxm.info, cel4u.co.il, reachoutrecovery.com, uaaaww.living and statomat.com.br.

alkbufye.courses at least partially shares name servers with other domains, for instance tadalify.com, transport-reunion.com, new88.cz, pandacd.io and 158044.com.

Six IP addresses per host:

louis.ns.cloudflare.com points to 2606:4700:58::a29f:2c59, 2803:f800:50::6ca2:c359, 2a06:98c1:50::ac40:2359, 108.162.195.89, 162.159.44.89 and 172.64.35.89; mckenzie.ns.cloudflare.com points to 2606:4700:50::a29f:26fd, 2803:f800:50::6ca2:c2fd, 2a06:98c1:50::ac40:22fd, 108.162.194.253, 162.159.38.253 and 172.64.34.253

alkbufye.courses - robtex.com