`cong21.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:44b2^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3030::ac43:c58a^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.68.178^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.197.138^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`pablo.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bdc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pablo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1dc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pablo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21dc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pablo.ns.cloudflare.com`
		A	108.162.193.220^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pablo.ns.cloudflare.com`
		A	172.64.33.220^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pablo.ns.cloudflare.com`
		A	173.245.59.220^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pablo.ns.cloudflare.com`
NS	`sreeni.ns.cloudflare.com`
		A	2606:4700:50::a29f:26b2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sreeni.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sreeni.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sreeni.ns.cloudflare.com`
		A	108.162.194.178^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sreeni.ns.cloudflare.com`
		A	162.159.38.178^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sreeni.ns.cloudflare.com`
		A	172.64.34.178^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sreeni.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.68.178, 172.67.197.138
		IPv6 hints	2606:4700:3030::6815:44b2, 2606:4700:3030::ac43:c58a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=78, name=cloudflare-ech.com
SOA	`pablo.ns.cloudflare.com`dns@cloudflare.com serial=2397736717

`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=1776218647

Same first word

cong21.com

DNS History

13 records (6 active, 7 former)

○NSns11.dnstool.net2016-12-19 → 2018-07-21 · 4 obs

● 2016-12-19 04:51:30
● 2018-07-21 02:52:22
○ 2026-03-13 08:40:54
○ 2026-04-15 02:09:38

●NSpablo.ns.cloudflare.com2026-03-13 → 2026-04-15 · 3 obs

○ 2018-07-21 02:52:22
● 2026-03-13 08:40:54
● 2026-04-15 02:09:38

●NSsreeni.ns.cloudflare.com2026-03-13 → 2026-04-15 · 3 obs

○ 2018-07-21 02:52:22
● 2026-03-13 08:40:54
● 2026-04-15 02:09:38

○MXkr1-aspmx1.worksmobile.com2016-12-19 → 2018-07-21 · 4 obs

● 2016-12-19 04:51:30
● 2018-07-21 02:52:22
○ 2026-03-13 08:40:54
○ 2026-04-15 02:09:38

○MXkr1-aspmx2.worksmobile.com2016-12-19 → 2018-07-21 · 4 obs

● 2016-12-19 04:51:30
● 2018-07-21 02:52:22
○ 2026-03-13 08:40:54
○ 2026-04-15 02:09:38

●A104.21.68.1782026-03-13 → 2026-04-15 · 5 obs

● 2026-03-13 08:40:54
○ 2026-03-13 15:46:22
○ 2026-03-29 12:08:30
● 2026-04-09 08:23:24
● 2026-04-15 02:09:38

●A172.67.197.1382026-03-13 → 2026-04-15 · 5 obs

● 2026-03-13 08:40:54
○ 2026-03-13 15:46:22
○ 2026-03-29 12:08:30
● 2026-04-09 08:23:24
● 2026-04-15 02:09:38

○A188.114.96.02026-03-13 → 2026-03-29 · 5 obs

○ 2026-03-13 08:40:54
● 2026-03-13 15:46:22
● 2026-03-29 12:08:30
○ 2026-04-09 08:23:24
○ 2026-04-15 02:09:38

○A188.114.97.02026-03-13 → 2026-03-29 · 5 obs

○ 2026-03-13 08:40:54
● 2026-03-13 15:46:22
● 2026-03-29 12:08:30
○ 2026-04-09 08:23:24
○ 2026-04-15 02:09:38

●A2606:4700:3030::6815:44b22026-03-13 → 2026-04-15 · 5 obs

● 2026-03-13 08:40:54
○ 2026-03-13 15:46:22
○ 2026-03-29 12:08:30
● 2026-04-09 08:23:24
● 2026-04-15 02:09:38

●A2606:4700:3030::ac43:c58a2026-03-13 → 2026-04-15 · 5 obs

● 2026-03-13 08:40:54
○ 2026-03-13 15:46:22
○ 2026-03-29 12:08:30
● 2026-04-09 08:23:24
● 2026-04-15 02:09:38

○A2a06:98c1:3120::2026-03-13 → 2026-03-29 · 5 obs

○ 2026-03-13 08:40:54
● 2026-03-13 15:46:22
● 2026-03-29 12:08:30
○ 2026-04-09 08:23:24
○ 2026-04-15 02:09:38

○A2a06:98c1:3121::2026-03-13 → 2026-03-29 · 5 obs

○ 2026-03-13 08:40:54
● 2026-03-13 15:46:22
● 2026-03-29 12:08:30
○ 2026-04-09 08:23:24
○ 2026-04-15 02:09:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cong21.com	pablo.ns.cloudflare.com, sreeni.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.178

NS records: pablo.ns.cloudflare.com, sreeni.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cong21.com (unsigned zone)

⏱️ Timing

Total: 101ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.68.178, 172.67.197.138`
AAAA	2	`2606:4700:3030::ac43:c58a, 2606:4700:3030::6815:44b2`
NS	2	`pablo.ns.cloudflare.com, sreeni.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`pablo.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

cong21.com maps to four IP numbers: 2606:4700:3030::6815:44b2, 2606:4700:3030::ac43:c58a, 104.21.68.178 and 172.67.197.138.

Other host names, for instance www.parhaattapahtumat.fi, www.hushcasino.com, m.5itianwen.com, www.cougars.at and possiblepat.com share IP numbers with cong21.com.

Name Servers

Two name servers pablo.ns.cloudflare.com and sreeni.ns.cloudflare.com are delegated to cong21.com.

cong21.com uses the same name server configuration as other domains, such as petir62gogo.com, pbb4dasli.com, jnt6d.mom, pbb4dstar.com and rajabangoakses.com.

cong21.com at least partially shares name servers with other domains such as (0x706f726e)-central.com, davidflitner.com, mondehp.com, corenotes.us and clocations.com.

These name servers are commonly used with rajeev.ns.cloudflare.com, gina.ns.cloudflare.com, cash.ns.cloudflare.com and donna.ns.cloudflare.com.

Host names with six IP numbers: Host name pablo.ns.cloudflare.com points to 2606:4700:58::adf5:3bdc, 2803:f800:50::6ca2:c1dc, 2a06:98c1:50::ac40:21dc, 108.162.193.220, 172.64.33.220 and 173.245.59.220; host name sreeni.ns.cloudflare.com points to 2606:4700:50::a29f:26b2, 2803:f800:50::6ca2:c2b2, 2a06:98c1:50::ac40:22b2, 108.162.194.178, 162.159.38.178 and 172.64.34.178.

cong21.com - robtex.com

cong21.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`cong21.com`

`com`