`21cup.net`

DNSSEC	⚠️ Not signed
NS	`lia.ns.cloudflare.com` ⚠️ Not in zone NS records
		A	2606:4700:50::adf5:3ab9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lia.ns.cloudflare.com`
		A	108.162.192.185^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
		A	172.64.32.185^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
		A	173.245.58.185^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lia.ns.cloudflare.com`
NS	`quentin.ns.cloudflare.com` ⚠️ Not in zone NS records
		A	2606:4700:58::a29f:2c07^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c307^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`quentin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2307^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`quentin.ns.cloudflare.com`
		A	108.162.195.7^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	162.159.44.7^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`
		A	172.64.35.7^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`quentin.ns.cloudflare.com`

`net`

	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=1784930702

⚠️ On DNS blocklist: multi, pro, pro.plus, ultimate

Same first word

21cup.net

21cup.s3.us-east-2.amazonaws.com

Similar names

c21up.com

puc21.com

cup12.com

DNS History

3 records (2 active, 1 former)

●NSlia.ns.cloudflare.com2026-06-16 → 2026-07-24 · 2 obs

● 2026-06-16 18:35:56
● 2026-07-24 22:21:10

●NSquentin.ns.cloudflare.com2026-06-16 → 2026-07-24 · 2 obs

● 2026-06-16 18:35:56
● 2026-07-24 22:21:10

○A139.45.195.122026-06-16 → 2026-06-16 · 3 obs

● 2026-06-16 18:35:56
○ 2026-07-21 04:20:44
○ 2026-07-24 22:21:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21cup.net	lia.ns.cloudflare.com, quentin.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.185

NS records: lia.ns.cloudflare.com, quentin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21cup.net (unsigned zone)

⏱️ Timing

Total: 428ms | Queries: -

📄 Records

Type	Count	Sample Data

Analysis

Name Servers

DNS delegation for 21cup.net points to two name servers: lia.ns.cloudflare.com and quentin.ns.cloudflare.com.

The name server configuration of 21cup.net is shared with other domains, for instance 650frame.net, sheetchoglauck.net, 555aeroon.net and two others.

The name servers of 21cup.net overlap at least partially with those of other domains — among them jcbra.com, pflc.com.cn, boomzhva.ru and two more.

These name servers commonly appear in combination with the name servers princess.ns.cloudflare.com.

Hosts with 6 IP addresses each:

lia.ns.cloudflare.com has IP addresses 108.162.192.185, 172.64.32.185 and 173.245.58.185, plus 3 other.

quentin.ns.cloudflare.com has IP addresses 108.162.195.7, 162.159.44.7 and 172.64.35.7, plus 3 other.

21cup.net - robtex.com

21cup.net

net