`system-core-set.co`

DNSSEC	⚠️ Not signed
A	104.21.48.26^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.176.34^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`damiete.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c20^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damiete.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c320^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`damiete.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2320^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`damiete.ns.cloudflare.com`
		A	108.162.195.32^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damiete.ns.cloudflare.com`
		A	162.159.44.32^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damiete.ns.cloudflare.com`
		A	172.64.35.32^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damiete.ns.cloudflare.com`
NS	`kira.ns.cloudflare.com`
		A	2606:4700:50::a29f:26c5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kira.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2c5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kira.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22c5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kira.ns.cloudflare.com`
		A	108.162.194.197^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kira.ns.cloudflare.com`
		A	162.159.38.197^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kira.ns.cloudflare.com`
		A	172.64.34.197^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kira.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.48.26, 172.67.176.34
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=229, name=cloudflare-ech.com
SOA	`damiete.ns.cloudflare.com`dns@cloudflare.com serial=2409654368

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759718892

⚠️ On DNS blocklist: tif

Same first word

system-core-set.co

DNS History

4 records (4 active, 0 former)

●NSdamiete.ns.cloudflare.com2026-05-13 → 2026-07-28 · 2 obs

● 2026-05-13 04:54:32
● 2026-07-28 23:39:00

●NSkira.ns.cloudflare.com2026-05-13 → 2026-07-28 · 2 obs

● 2026-05-13 04:54:32
● 2026-07-28 23:39:00

●A104.21.48.262026-05-13 → 2026-07-28 · 2 obs

● 2026-05-13 04:54:32
● 2026-07-28 23:39:00

●A172.67.176.342026-05-13 → 2026-07-28 · 2 obs

● 2026-05-13 04:54:32
● 2026-07-28 23:39:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
system-core-set.co	damiete.ns.cloudflare.com, kira.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.32

NS records: damiete.ns.cloudflare.com, kira.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for system-core-set.co (unsigned zone)

⏱️ Timing

Total: 337ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.176.34, 104.21.48.26`
NS	2	`damiete.ns.cloudflare.com, kira.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`damiete.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

system-core-set.co has two IP addresses: 104.21.48.26 and 172.67.176.34

Additional host names — hyn.biz, immtu.com, mail.prachuapkhirikhan.go.th and two others — share IP numbers with system-core-set.co.

Name Servers

system-core-set.co uses two name servers for its delegation: damiete.ns.cloudflare.com and kira.ns.cloudflare.com.

system-core-set.co shares its name server setup with other domains, including anatomicgel.com.br, silberhain9.ru, quartzweide4.ru and two others.

There is at least partial name server overlap between system-core-set.co and other domains — lauenl.com, back9records.com, izoneiraq.com and two more among them.

These name servers frequently co-occur with the name servers rohin.ns.cloudflare.com and desi.ns.cloudflare.com.

Host names with 6 IP numbers:

Hostname damiete.ns.cloudflare.com directs to 108.162.195.32, 162.159.44.32 and 172.64.35.32 along with 3 other IP addresses.

Hostname kira.ns.cloudflare.com directs to 108.162.194.197, 162.159.38.197 and 172.64.34.197 along with 3 other IP addresses.

system-core-set.co - robtex.com