crossknowledge.us - dns.ninja

`crossknowledge.us`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:464b^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:dda1^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.70.75^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.161^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gene.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a9e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c09e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gene.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:209e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gene.ns.cloudflare.com`
		A	108.162.192.158^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
		A	172.64.32.158^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
		A	173.245.58.158^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
NS	`igor.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c177^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`igor.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2177^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`igor.ns.cloudflare.com`
		A	108.162.193.119^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	172.64.33.119^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	173.245.59.119^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.70.75, 172.67.221.161
		IPv6 hints	2606:4700:3031::6815:464b, 2606:4700:3033::ac43:dda1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=207, name=cloudflare-ech.com
SOA	`gene.ns.cloudflare.com`dns@cloudflare.com serial=2405580180

`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=1783207471

Same first word

Similar names

knowledgecross.com

DNS History

13 records (6 active, 7 former)

○NSa.dns.gandi.net2015-07-16 → 2017-12-29 · 4 obs

● 2015-07-16 18:58:20
● 2017-12-29 01:39:46
○ 2026-02-19 09:12:46
○ 2026-07-04 23:41:42

○NSb.dns.gandi.net2015-07-16 → 2017-12-29 · 4 obs

● 2015-07-16 18:58:20
● 2017-12-29 01:39:46
○ 2026-02-19 09:12:46
○ 2026-07-04 23:41:42

○NSc.dns.gandi.net2015-07-16 → 2017-12-29 · 4 obs

● 2015-07-16 18:58:20
● 2017-12-29 01:39:46
○ 2026-02-19 09:12:46
○ 2026-07-04 23:41:42

●NSgene.ns.cloudflare.com2026-02-19 → 2026-07-04 · 3 obs

○ 2017-12-29 01:39:46
● 2026-02-19 09:12:46
● 2026-07-04 23:41:42

●NSigor.ns.cloudflare.com2026-02-19 → 2026-07-04 · 3 obs

○ 2017-12-29 01:39:46
● 2026-02-19 09:12:46
● 2026-07-04 23:41:42

○MXfb.mail.gandi.net2015-07-16 → 2017-12-29 · 4 obs

● 2015-07-16 18:58:20
● 2017-12-29 01:39:46
○ 2026-02-19 09:12:46
○ 2026-07-04 23:41:42

○MXspool.mail.gandi.net2015-07-16 → 2017-12-29 · 4 obs

● 2015-07-16 18:58:20
● 2017-12-29 01:39:46
○ 2026-02-19 09:12:46
○ 2026-07-04 23:41:42

●A104.21.70.752026-02-19 → 2026-07-04 · 3 obs

○ 2017-12-29 01:39:46
● 2026-02-19 09:12:46
● 2026-07-04 23:41:42

●A172.67.221.1612026-02-19 → 2026-07-04 · 3 obs

○ 2017-12-29 01:39:46
● 2026-02-19 09:12:46
● 2026-07-04 23:41:42

○A217.70.184.382015-07-16 → 2017-12-29 · 4 obs

● 2015-07-16 18:58:20
● 2017-12-29 01:39:46
○ 2026-02-19 09:12:46
○ 2026-07-04 23:41:42

●A2606:4700:3031::6815:464b2026-07-02 → 2026-07-04 · 3 obs

○ 2026-02-19 09:12:46
● 2026-07-02 03:01:06
● 2026-07-04 23:41:42

●A2606:4700:3033::ac43:dda12026-02-19 → 2026-07-04 · 3 obs

○ 2017-12-29 01:39:46
● 2026-02-19 09:12:46
● 2026-07-04 23:41:42

○A2606:4700:3037::6815:464b2026-02-19 → 2026-02-19 · 4 obs

○ 2017-12-29 01:39:46
● 2026-02-19 09:12:46
○ 2026-07-02 03:01:06
○ 2026-07-04 23:41:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	f.cctld.us, w.cctld.us, m.cctld.us, k.cctld.us...	-
crossknowledge.us	igor.ns.cloudflare.com, gene.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.119

NS records: igor.ns.cloudflare.com, gene.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crossknowledge.us (unsigned zone)

⏱️ Timing

Total: 245ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.221.161, 104.21.70.75`
AAAA	2	`2606:4700:3031::6815:464b, 2606:4700:3033::ac43:dda1`
NS	2	`gene.ns.cloudflare.com, igor.ns.cloudflare.com`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`gene.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

crossknowledge.us points to the four IP addresses 104.21.70.75, 172.67.221.161, 2606:4700:3031::6815:464b and 2606:4700:3033::ac43:dda1.

Among the host names that share IP numbers with crossknowledge.us are vinted.pl49473637.cfd, mediapresser.com, la-ads.com and two others.

Name Servers

crossknowledge.us uses two name servers for its delegation: gene.ns.cloudflare.com and igor.ns.cloudflare.com.

crossknowledge.us has the same name server delegation as a number of other domains, such as irwiz.com, crossknowledge.fr, girls(0x6675636b).me and two more.

The name servers of crossknowledge.us overlap at least partially with those of other domains — among them pure.in.th, inklab.ro, reynders-tuinaanleg.be and two more.

These name servers commonly appear alongside the name servers aria.ns.cloudflare.com and ian.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname gene.ns.cloudflare.com directs to 108.162.192.158, 172.64.32.158 and 173.245.58.158 along with 3 other IP addresses.

Hostname igor.ns.cloudflare.com directs to 108.162.193.119, 172.64.33.119 and 173.245.59.119 along with 3 other IP addresses.