`c21up.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:bf70^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:3c26^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.60.38^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.191.112^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`melany.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:268a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c28a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`melany.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:228a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`melany.ns.cloudflare.com`
		A	108.162.194.138^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
		A	162.159.38.138^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
		A	172.64.34.138^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melany.ns.cloudflare.com`
NS	`owen.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bdb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1db^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`owen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21db^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`owen.ns.cloudflare.com`
		A	108.162.193.219^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
		A	172.64.33.219^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
		A	173.245.59.219^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
MX	`mx1-hosting.jellyfish.systems` ⭐
		A	162.255.118.28^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse3a.privateemail.com`
MX	`mx2-hosting.jellyfish.systems`⁽¹⁰⁾
		A	162.255.118.29^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse2b.privateemail.com`
MX	`mx3-hosting.jellyfish.systems`⁽²⁰⁾
		A	162.255.118.13^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`mx3-hosting.jellyfish.systems`
TXT	`v=spf1 +a +mx +ip4:192.64.117.65 include:spf.web-hosting.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.60.38, 172.67.191.112
		IPv6 hints	2606:4700:3031::ac43:bf70, 2606:4700:3037::6815:3c26
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=248, name=cloudflare-ech.com
SOA	`melany.ns.cloudflare.com`dns@cloudflare.com serial=2410347485

`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=1784948142

Same first word

c21up.com

Similar names

21cup.net

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

puc21.com

cup12.com

DNS History

17 records (9 active, 8 former)

●NSmelany.ns.cloudflare.com2026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

○NSns1.mdnsservice.com2015-08-09 → 2017-04-05 · 4 obs

● 2015-08-09 18:38:16
● 2017-04-05 21:37:20
○ 2026-07-13 21:36:30
○ 2026-07-25 03:17:30

○NSns2.mdnsservice.com2015-08-09 → 2017-04-05 · 4 obs

● 2015-08-09 18:38:16
● 2017-04-05 21:37:20
○ 2026-07-13 21:36:30
○ 2026-07-25 03:17:30

○NSns3.mdnsservice.com2015-08-09 → 2017-04-05 · 4 obs

● 2015-08-09 18:38:16
● 2017-04-05 21:37:20
○ 2026-07-13 21:36:30
○ 2026-07-25 03:17:30

●NSowen.ns.cloudflare.com2026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

○MXc21up.com.inbound10.mxlogic.net2015-08-09 → 2015-08-09 · 3 obs

● 2015-08-09 18:38:16
○ 2015-11-27 18:54:46
○ 2026-07-25 03:17:30

○MXc21up.com.inbound10.mxlogicmx.net2015-08-09 → 2015-08-09 · 3 obs

● 2015-08-09 18:38:16
○ 2015-11-27 18:54:46
○ 2026-07-25 03:17:30

○MXd80566a.ess.barracudanetworks.com2015-11-27 → 2017-04-05 · 5 obs

○ 2015-08-09 18:38:16
● 2015-11-27 18:54:46
● 2017-04-05 21:37:20
○ 2026-07-13 21:36:30
○ 2026-07-25 03:17:30

○MXd80566b.ess.barracudanetworks.com2015-11-27 → 2017-04-05 · 5 obs

○ 2015-08-09 18:38:16
● 2015-11-27 18:54:46
● 2017-04-05 21:37:20
○ 2026-07-13 21:36:30
○ 2026-07-25 03:17:30

●MXmx1-hosting.jellyfish.systems2026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

●MXmx2-hosting.jellyfish.systems2026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

●MXmx3-hosting.jellyfish.systems2026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

●A104.21.60.382026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

●A172.67.191.1122026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

●A2606:4700:3031::ac43:bf702026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

●A2606:4700:3037::6815:3c262026-07-13 → 2026-07-25 · 3 obs

○ 2017-04-05 21:37:20
● 2026-07-13 21:36:30
● 2026-07-25 03:17:30

○A69.16.233.1682015-08-09 → 2017-04-05 · 4 obs

● 2015-08-09 18:38:16
● 2017-04-05 21:37:20
○ 2026-07-13 21:36:30
○ 2026-07-25 03:17:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, l.gtld-servers.net...	-
c21up.com	owen.ns.cloudflare.com, melany.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.219

NS records: owen.ns.cloudflare.com, melany.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for c21up.com (unsigned zone)

⏱️ Timing

Total: 187ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.60.38, 172.67.191.112`
AAAA	2	`2606:4700:3031::ac43:bf70, 2606:4700:3037::6815:3c26`
NS	2	`melany.ns.cloudflare.com, owen.ns.cloudflare.com`
MX	3	`mx2-hosting.jellyfish.systems (pri: 10), mx3-hosting.jellyfish.systems (pri: 20)...`
TXT	1	`v=spf1 +a +mx +ip4:192.64.117.65 include`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`melany.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

c21up.com directs to four IP numbers, which are 104.21.60.38, 172.67.191.112, 2606:4700:3031::ac43:bf70 and 2606:4700:3037::6815:3c26.

usuario-pjapp.click, 98z.org, naowhui.howli.gg plus two other host names have IP numbers in common with c21up.com.

Name Servers

DNS delegation for c21up.com points to two name servers: melany.ns.cloudflare.com and owen.ns.cloudflare.com.

The name server configuration of c21up.com is shared with other domains, for instance ristorantetavernaduecastagni.com, cornerstonestcloud.com, kindacresfarm.com and two others.

The name servers of c21up.com overlap at least partially with those of other domains — among them urimirnariniva.com, salesiansspp.org, ziraatbank.cfd and two more.

The name servers ganz.ns.cloudflare.com, mckinley.ns.cloudflare.com and vin.ns.cloudflare.com are commonly seen alongside these name servers.

Hosts with 6 IP addresses each:

melany.ns.cloudflare.com has IP addresses 108.162.194.138, 162.159.38.138 and 172.64.34.138, plus 3 other.

owen.ns.cloudflare.com has IP addresses 108.162.193.219, 172.64.33.219 and 173.245.59.219, plus 3 other.

Mail Servers

Mail for c21up.com is routed through three mail servers — mx1-hosting.jellyfish.systems, mx2-hosting.jellyfish.systems and mx3-hosting.jellyfish.systems.

At least some of the mail servers used by c21up.com are shared with other domains: ugearsmodels.us, electmaryrobichaux.com, elon-iptv.com and two others among them.

mx1-hosting.jellyfish.systems, mx2-hosting.jellyfish.systems and mx3-hosting.jellyfish.systems all have one IP address each — mx1-hosting.jellyfish.systems directs to 162.255.118.28, mx2-hosting.jellyfish.systems directs to 162.255.118.29 and mx3-hosting.jellyfish.systems directs to 162.255.118.13.

c21up.com - robtex.com

c21up.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`c21up.com`

`com`