`knowno.us`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:5aab^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9e38^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.90.171^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.158.56^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`eric.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b70^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c170^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`eric.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2170^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`eric.ns.cloudflare.com`
		A	108.162.193.112^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	172.64.33.112^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	173.245.59.112^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
NS	`laylah.ns.cloudflare.com`
		A	2606:4700:50::a29f:26e6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laylah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2e6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`laylah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22e6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`laylah.ns.cloudflare.com`
		A	108.162.194.230^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laylah.ns.cloudflare.com`
		A	162.159.38.230^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laylah.ns.cloudflare.com`
		A	172.64.34.230^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laylah.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.90.171, 172.67.158.56
		IPv6 hints	2606:4700:3033::6815:5aab, 2606:4700:3037::ac43:9e38
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=75, name=cloudflare-ech.com
SOA	`eric.ns.cloudflare.com`dns@cloudflare.com serial=2399800111

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1777069509

Same first word

knowno.com

knowno.info

knowno.us

Similar names

onknow.blogspot.com

knowon.com

noknow.cn

knowon.de

onknow.com

konnow.com

noknow.com

noknow.ovh

noknow.sinaapp.com

DNS History

17 records (6 active, 11 former)

●NSeric.ns.cloudflare.com2026-04-13 → 2026-04-24 · 3 obs

○ 2018-07-10 00:34:42
● 2026-04-13 22:49:56
● 2026-04-24 22:37:06

●NSlaylah.ns.cloudflare.com2026-04-13 → 2026-04-24 · 3 obs

○ 2018-07-10 00:34:42
● 2026-04-13 22:49:56
● 2026-04-24 22:37:06

○NSns47.domaincontrol.com2018-07-10 → 2018-07-10 · 3 obs

● 2018-07-10 00:34:42
○ 2026-04-13 22:49:56
○ 2026-04-24 22:37:06

○NSns48.domaincontrol.com2018-07-10 → 2018-07-10 · 3 obs

● 2018-07-10 00:34:42
○ 2026-04-13 22:49:56
○ 2026-04-24 22:37:06

○MXknowno-us.mail.protection.outlook.com2018-07-10 → 2018-07-10 · 3 obs

● 2018-07-10 00:34:42
○ 2026-04-13 22:49:56
○ 2026-04-24 22:37:06

●A104.21.90.1712026-04-13 → 2026-04-24 · 5 obs

○ 2018-07-10 00:34:42
● 2026-04-13 22:49:56
● 2026-04-22 05:31:18
○ 2026-04-22 17:29:16
● 2026-04-24 22:37:06

●A172.67.158.562026-04-13 → 2026-04-24 · 5 obs

○ 2018-07-10 00:34:42
● 2026-04-13 22:49:56
● 2026-04-22 05:31:18
○ 2026-04-22 17:29:16
● 2026-04-24 22:37:06

○A188.114.96.02026-04-22 → 2026-04-22 · 3 obs

○ 2026-04-22 05:31:18
● 2026-04-22 17:29:16
○ 2026-04-24 22:37:06

○A188.114.97.02026-04-22 → 2026-04-22 · 3 obs

○ 2026-04-22 05:31:18
● 2026-04-22 17:29:16
○ 2026-04-24 22:37:06

○A198.185.159.1442018-07-10 → 2018-07-10 · 3 obs

● 2018-07-10 00:34:42
○ 2026-04-13 22:49:56
○ 2026-04-24 22:37:06

○A198.185.159.1452018-07-10 → 2018-07-10 · 3 obs

● 2018-07-10 00:34:42
○ 2026-04-13 22:49:56
○ 2026-04-24 22:37:06

○A198.49.23.1442018-07-10 → 2018-07-10 · 3 obs

● 2018-07-10 00:34:42
○ 2026-04-13 22:49:56
○ 2026-04-24 22:37:06

○A198.49.23.1452018-07-10 → 2018-07-10 · 3 obs

● 2018-07-10 00:34:42
○ 2026-04-13 22:49:56
○ 2026-04-24 22:37:06

●A2606:4700:3033::6815:5aab2026-04-13 → 2026-04-24 · 5 obs

○ 2018-07-10 00:34:42
● 2026-04-13 22:49:56
● 2026-04-22 05:31:18
○ 2026-04-22 17:29:16
● 2026-04-24 22:37:06

●A2606:4700:3037::ac43:9e382026-04-13 → 2026-04-24 · 5 obs

○ 2018-07-10 00:34:42
● 2026-04-13 22:49:56
● 2026-04-22 05:31:18
○ 2026-04-22 17:29:16
● 2026-04-24 22:37:06

○A2a06:98c1:3120::2026-04-22 → 2026-04-22 · 3 obs

○ 2026-04-22 05:31:18
● 2026-04-22 17:29:16
○ 2026-04-24 22:37:06

○A2a06:98c1:3121::2026-04-22 → 2026-04-22 · 3 obs

○ 2026-04-22 05:31:18
● 2026-04-22 17:29:16
○ 2026-04-24 22:37:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	-
knowno.us	eric.ns.cloudflare.com, laylah.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.230

NS records: eric.ns.cloudflare.com, laylah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowno.us (unsigned zone)

⏱️ Timing

Total: 472ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.158.56, 104.21.90.171`
AAAA	2	`2606:4700:3033::6815:5aab, 2606:4700:3037::ac43:9e38`
NS	2	`eric.ns.cloudflare.com, laylah.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`eric.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

Four IP numbers are pointed to by knowno.us: 2606:4700:3033::6815:5aab, 2606:4700:3037::ac43:9e38, 104.21.90.171 and 172.67.158.56.

other host names including www.uniaktivite.com, woodstocknow.com, id32.808bola238.com, cloud-a1.sbs and hn-xinshiji.com share IP numbers with knowno.us.

Name Servers

knowno.us is delegated to two name servers eric.ns.cloudflare.com and laylah.ns.cloudflare.com.

knowno.us shares the same name server setup as other domains, for instance jinglejangle.us, obvdenhaag.nl, hvgool-kakarikie.nl, tecamotest.com and b3pc.cn.

knowno.us at least partially shares name servers with other domains, for instance kaneshiivinyl.com, independentbrokerdealers.com, zonexpert.nl, cdanj.com and 10104118.com.

These name servers are commonly used with colin.ns.cloudflare.com, simon.ns.cloudflare.com and kay.ns.cloudflare.com.

Host names with six IP numbers:

Host name eric.ns.cloudflare.com points to: 2606:4700:58::adf5:3b70, 2803:f800:50::6ca2:c170, 2a06:98c1:50::ac40:2170, 108.162.193.112, 172.64.33.112 and 173.245.59.112.

Host name laylah.ns.cloudflare.com points to: 2606:4700:50::a29f:26e6, 2803:f800:50::6ca2:c2e6, 2a06:98c1:50::ac40:22e6, 108.162.194.230, 162.159.38.230 and 172.64.34.230.

knowno.us - robtex.com

knowno.us

us

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`knowno.us`

`us`