`gymknowledge.info`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:922f^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:1c7f^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.28.127^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.47^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sierra.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26f5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sierra.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sierra.ns.cloudflare.com`
		A	108.162.194.245^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
		A	162.159.38.245^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
		A	172.64.34.245^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sierra.ns.cloudflare.com`
NS	`venkat.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cfe^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fe^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`venkat.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fe^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`venkat.ns.cloudflare.com`
		A	108.162.195.254^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
		A	162.159.44.254^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
		A	172.64.35.254^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venkat.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.28.127, 172.67.146.47
		IPv6 hints	2606:4700:3034::ac43:922f, 2606:4700:3037::6815:1c7f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=131, name=cloudflare-ech.com
SOA	`sierra.ns.cloudflare.com`dns@cloudflare.com serial=2403132771

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1781711847

📈 Tranco rank: #734,554

Subdomains

it.gymknowledge.info

ar.gymknowledge.info

Same first word

gymknowledge.info

DNS History

6 records (6 active, 0 former)

●NSsierra.ns.cloudflare.com2026-05-18 → 2026-06-17 · 2 obs

● 2026-05-18 14:39:32
● 2026-06-17 16:13:00

●NSvenkat.ns.cloudflare.com2026-05-18 → 2026-06-17 · 2 obs

● 2026-05-18 14:39:32
● 2026-06-17 16:13:00

●A104.21.28.1272026-05-18 → 2026-06-17 · 2 obs

● 2026-05-18 14:39:32
● 2026-06-17 16:13:00

●A172.67.146.472026-05-18 → 2026-06-17 · 2 obs

● 2026-05-18 14:39:32
● 2026-06-17 16:13:00

●A2606:4700:3034::ac43:922f2026-05-18 → 2026-06-17 · 2 obs

● 2026-05-18 14:39:32
● 2026-06-17 16:13:00

●A2606:4700:3037::6815:1c7f2026-05-18 → 2026-06-17 · 2 obs

● 2026-05-18 14:39:32
● 2026-06-17 16:13:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, c0.info.afilias-nst.info, a2.info.afilias-nst.info	-
gymknowledge.info	venkat.ns.cloudflare.com, sierra.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.254

NS records: venkat.ns.cloudflare.com, sierra.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gymknowledge.info (unsigned zone)

⏱️ Timing

Total: 342ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.146.47, 104.21.28.127`
AAAA	2	`2606:4700:3037::6815:1c7f, 2606:4700:3034::ac43:922f`
NS	2	`sierra.ns.cloudflare.com, venkat.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sierra.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

gymknowledge.info serves as the parent of it.gymknowledge.info and ar.gymknowledge.info.

IP Addresses

gymknowledge.info directs to four IP numbers, which are 104.21.28.127, 172.67.146.47, 2606:4700:3034::ac43:922f and 2606:4700:3037::6815:1c7f.

moba4d40.com, medtube.us, khara.org plus two other host names have IP numbers in common with gymknowledge.info.

Name Servers

gymknowledge.info uses two name servers for its delegation: sierra.ns.cloudflare.com and venkat.ns.cloudflare.com.

The name server configuration of gymknowledge.info is shared with other domains, for instance prague-25.com, dify-rym.online, studyplanit.com and two others.

There is at least partial name server overlap between gymknowledge.info and other domains — perftile.com, google-sh68.com, corvus.com and two more among them.

These name servers frequently co-occur with the name servers jade.ns.cloudflare.com and michael.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname sierra.ns.cloudflare.com directs to 108.162.194.245, 162.159.38.245 and 172.64.34.245 along with 3 other IP addresses.

Hostname venkat.ns.cloudflare.com directs to 108.162.195.254, 162.159.44.254 and 172.64.35.254 along with 3 other IP addresses.

gymknowledge.info - robtex.com