`sciencekitschina.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:2f52^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:aac9^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.47.82^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.170.201^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`rustam.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c394^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rustam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2394^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rustam.ns.cloudflare.com`
		A	108.162.195.148^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	162.159.44.148^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	172.64.35.148^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
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`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽⁷⁶⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁹⁴⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.47.82, 172.67.170.201
		IPv6 hints	2606:4700:3031::6815:2f52, 2606:4700:3031::ac43:aac9
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=85, name=cloudflare-ech.com
SOA	`rustam.ns.cloudflare.com`dns@cloudflare.com serial=2407771380

`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=1785464862

Same first word

sciencekitschina.com

DNS History

11 records (9 active, 2 former)

●NSrustam.ns.cloudflare.com2026-05-25 → 2026-07-31 · 2 obs

● 2026-05-25 18:17:46
● 2026-07-31 02:32:36

●NSsierra.ns.cloudflare.com2026-05-25 → 2026-07-31 · 2 obs

● 2026-05-25 18:17:46
● 2026-07-31 02:32:36

●MXroute1.mx.cloudflare.net2026-05-25 → 2026-07-31 · 2 obs

● 2026-05-25 18:17:46
● 2026-07-31 02:32:36

●MXroute2.mx.cloudflare.net2026-05-25 → 2026-07-31 · 2 obs

● 2026-05-25 18:17:46
● 2026-07-31 02:32:36

●MXroute3.mx.cloudflare.net2026-05-25 → 2026-07-31 · 2 obs

● 2026-05-25 18:17:46
● 2026-07-31 02:32:36

●A104.21.47.822026-05-25 → 2026-07-31 · 2 obs

● 2026-05-25 18:17:46
● 2026-07-31 02:32:36

●A172.67.170.2012026-05-25 → 2026-07-31 · 2 obs

● 2026-05-25 18:17:46
● 2026-07-31 02:32:36

○A2606:4700:3030::6815:2f522026-05-25 → 2026-06-04 · 4 obs

● 2026-05-25 18:17:46
● 2026-06-04 15:08:36
○ 2026-07-27 08:23:16
○ 2026-07-31 02:32:36

●A2606:4700:3031::6815:2f522026-07-27 → 2026-07-31 · 3 obs

○ 2026-06-04 15:08:36
● 2026-07-27 08:23:16
● 2026-07-31 02:32:36

●A2606:4700:3031::ac43:aac92026-07-27 → 2026-07-31 · 3 obs

○ 2026-06-04 15:08:36
● 2026-07-27 08:23:16
● 2026-07-31 02:32:36

○A2606:4700:3034::ac43:aac92026-05-25 → 2026-06-04 · 4 obs

● 2026-05-25 18:17:46
● 2026-06-04 15:08:36
○ 2026-07-27 08:23:16
○ 2026-07-31 02:32:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sciencekitschina.com	sierra.ns.cloudflare.com, rustam.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.245

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sciencekitschina.com (unsigned zone)

⏱️ Timing

Total: 194ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.170.201, 104.21.47.82`
AAAA	2	`2606:4700:3031::ac43:aac9, 2606:4700:3031::6815:2f52`
NS	2	`rustam.ns.cloudflare.com, sierra.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 17), route1.mx.cloudflare.net (pri: 76)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`rustam.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

sciencekitschina.com resolves to four IP addresses: 104.21.47.82, 172.67.170.201, 2606:4700:3031::6815:2f52 and 2606:4700:3031::ac43:aac9.

www.harau.org, link24systems.sbs, 23o4oi.xtraplay88.biz plus two other host names have IP numbers in common with sciencekitschina.com.

Name Servers

The NS records for sciencekitschina.com delegate to rustam.ns.cloudflare.com and sierra.ns.cloudflare.com.

The name server configuration of sciencekitschina.com is shared with other domains, for instance emo-e.com, talleraqui.com, ps4gamers.ru and two others.

sciencekitschina.com partially shares its NS delegation with several other domains, including tcope.land, seviax.cfd, ww99.bet and two others.

These name servers are regularly seen alongside aiden.ns.cloudflare.com and nelci.ns.cloudflare.com as name servers.

Hosts with 6 IP addresses each:

rustam.ns.cloudflare.com maps to 108.162.195.148, 162.159.44.148, 172.64.35.148 and 3 additional IP addresses.

sierra.ns.cloudflare.com maps to 108.162.194.245, 162.159.38.245, 172.64.34.245 and 3 additional IP addresses.

Mail Servers

sciencekitschina.com uses three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

At least some of the mail servers used by sciencekitschina.com are shared with other domains: jcbspareparts.com.tr, dbgtech.net, dvdhacks.co.uk and two others among them.

Hosts with 6 IP addresses each:

route1.mx.cloudflare.net maps to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 additional IP addresses.

route2.mx.cloudflare.net maps to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 additional IP addresses.

route3.mx.cloudflare.net maps to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 additional IP addresses.

sciencekitschina.com - robtex.com