`21kampus.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:9ff9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:2929^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.41.41^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.159.249^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dell.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a5e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dell.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c05e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dell.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:205e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dell.ns.cloudflare.com`
		A	108.162.192.94^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dell.ns.cloudflare.com`
		A	172.64.32.94^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dell.ns.cloudflare.com`
		A	173.245.58.94^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dell.ns.cloudflare.com`
NS	`jobs.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bb7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jobs.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jobs.ns.cloudflare.com`
		A	108.162.193.183^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
		A	172.64.33.183^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
		A	173.245.59.183^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jobs.ns.cloudflare.com`
TXT	`ca3-e4e762ff738d47d2890a740a4aa3e55f`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.41.41, 172.67.159.249
		IPv6	2606:4700:3033::ac43:9ff9, 2606:4700:3035::6815:2929
SOA	`dell.ns.cloudflare.com`dns@cloudflare.com serial=2399202842

`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=1774493187

🔒 HSTS Preload (+subdomains)

Same first word

21kampus.com

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21kampus.com	dell.ns.cloudflare.com, jobs.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.183

NS records: dell.ns.cloudflare.com, jobs.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21kampus.com (unsigned zone)

⏱️ Timing

Total: 105ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.41.41, 172.67.159.249`
AAAA	2	`2606:4700:3035::6815:2929, 2606:4700:3033::ac43:9ff9`
NS	2	`dell.ns.cloudflare.com, jobs.ns.cloudflare.com`
TXT	1	`ca3-e4e762ff738d47d2890a740a4aa3e55f`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dell.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

21kampus.com points to four IP numbers: 2606:4700:3033::ac43:9ff9, 2606:4700:3035::6815:2929, 104.21.41.41 and 172.67.159.249.

Other host names including scoringsport.com, recyclensave.sg, googledi.com, www.e4t.org.mx and obs.yudashu.workers.dev share IP numbers with 21kampus.com.

Name Servers

21kampus.com's delegation uses two name servers, dell.ns.cloudflare.com and jobs.ns.cloudflare.com.

21kampus.com shares the same name server setup as other domains, for example mediclap.com, royalzhick.com, nickdenton.org, bidnessetc.com and leapport.com.

21kampus.com at least partially shares name servers with other domains, including sautoimpit.pro, terradot.com, absoluteitokc.com, eisenet.com and infinitusvip.com.

These name servers are commonly used with peyton.ns.cloudflare.com and michelle.ns.cloudflare.com.

Host names with six IP numbers:

dell.ns.cloudflare.com points to: 2606:4700:50::adf5:3a5e, 2803:f800:50::6ca2:c05e, 2a06:98c1:50::ac40:205e, 108.162.192.94, 172.64.32.94 and 173.245.58.94.

jobs.ns.cloudflare.com points to: 2606:4700:58::adf5:3bb7, 2803:f800:50::6ca2:c1b7, 2a06:98c1:50::ac40:21b7, 108.162.193.183, 172.64.33.183 and 173.245.59.183.

21kampus.com - robtex.com

21kampus.com

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