`zenprocourses.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:92a1^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:49ae^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.73.174^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.161^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aron.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a45^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c045^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aron.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2045^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aron.ns.cloudflare.com`
		A	108.162.192.69^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
		A	172.64.32.69^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
		A	173.245.58.69^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aron.ns.cloudflare.com`
NS	`woz.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b96^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c196^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`woz.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2196^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`woz.ns.cloudflare.com`
		A	108.162.193.150^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	172.64.33.150^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
		A	173.245.59.150^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`woz.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.73.174, 172.67.146.161
		IPv6	2606:4700:3034::ac43:92a1, 2606:4700:3036::6815:49ae
SOA	`aron.ns.cloudflare.com`dns@cloudflare.com serial=2399842011

`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=1774400362

Same first word

zenprocourses.com

DNS History

13 records (6 active, 7 former)

○NSamy.ns.cloudflare.com2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 00:09:34
○ 2026-02-27 16:50:08
○ 2026-03-25 01:04:44

●NSaron.ns.cloudflare.com2026-02-27 → 2026-03-25 · 3 obs

○ 2017-05-11 00:09:34
● 2026-02-27 16:50:08
● 2026-03-25 01:04:44

○NSdoug.ns.cloudflare.com2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 00:09:34
○ 2026-02-27 16:50:08
○ 2026-03-25 01:04:44

●NSwoz.ns.cloudflare.com2026-02-27 → 2026-03-25 · 3 obs

○ 2017-05-11 00:09:34
● 2026-02-27 16:50:08
● 2026-03-25 01:04:44

○MXmailstore1.secureserver.net2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 00:09:34
○ 2026-02-27 16:50:08
○ 2026-03-25 01:04:44

○MXsmtp.secureserver.net2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 00:09:34
○ 2026-02-27 16:50:08
○ 2026-03-25 01:04:44

●A104.21.73.1742026-02-27 → 2026-03-25 · 3 obs

○ 2017-05-11 00:09:34
● 2026-02-27 16:50:08
● 2026-03-25 01:04:44

●A172.67.146.1612026-02-27 → 2026-03-25 · 3 obs

○ 2017-05-11 00:09:34
● 2026-02-27 16:50:08
● 2026-03-25 01:04:44

○A23.23.157.462017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 00:09:34
○ 2026-02-27 16:50:08
○ 2026-03-25 01:04:44

○A23.23.215.1512017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 00:09:34
○ 2026-02-27 16:50:08
○ 2026-03-25 01:04:44

●A2606:4700:3034::ac43:92a12026-02-27 → 2026-03-25 · 3 obs

○ 2017-05-11 00:09:34
● 2026-02-27 16:50:08
● 2026-03-25 01:04:44

●A2606:4700:3036::6815:49ae2026-02-27 → 2026-03-25 · 3 obs

○ 2017-05-11 00:09:34
● 2026-02-27 16:50:08
● 2026-03-25 01:04:44

○A50.19.103.1762017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 00:09:34
○ 2026-02-27 16:50:08
○ 2026-03-25 01:04:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
zenprocourses.com	woz.ns.cloudflare.com, aron.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.150

NS records: woz.ns.cloudflare.com, aron.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zenprocourses.com (unsigned zone)

⏱️ Timing

Total: 100ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.73.174, 172.67.146.161`
AAAA	2	`2606:4700:3034::ac43:92a1, 2606:4700:3036::6815:49ae`
NS	2	`aron.ns.cloudflare.com, woz.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aron.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

zenprocourses.com points to four IP numbers: 2606:4700:3034::ac43:92a1, 2606:4700:3036::6815:49ae, 104.21.73.174 and 172.67.146.161.

Other host names, for instance 50-spins.com, clevertechasiapacific.com, superessay.org, mail.tango-frankfurt.de and holiday.radio.fm share IP numbers with zenprocourses.com.

Name Servers

Delegation for zenprocourses.com rests with two name servers, aron.ns.cloudflare.com and woz.ns.cloudflare.com.

zenprocourses.com shares the same name server setup as other domains, including thunk.app, x35.net, krt36.cc, alanssantos.com and markhprice.com.

zenprocourses.com at least partially shares name servers with other domains, for instance northstarconnect.com, gregoryshall.com, gilquin.com, beepxtra.net and plugins.ro.

These name servers are commonly used with lex.ns.cloudflare.com and jake.ns.cloudflare.com.

Host names with six IP numbers: aron.ns.cloudflare.com points to: 2606:4700:50::adf5:3a45, 2803:f800:50::6ca2:c045, 2a06:98c1:50::ac40:2045, 108.162.192.69, 172.64.32.69 and 173.245.58.69. woz.ns.cloudflare.com points to: 2606:4700:58::adf5:3b96, 2803:f800:50::6ca2:c196, 2a06:98c1:50::ac40:2196, 108.162.193.150, 172.64.33.150 and 173.245.59.150.

zenprocourses.com - robtex.com