`caoptimumsign.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:bad^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:a6b2^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.173^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.166.178^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`marjory.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ac1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marjory.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marjory.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marjory.ns.cloudflare.com`
		A	108.162.192.193^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marjory.ns.cloudflare.com`
		A	172.64.32.193^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marjory.ns.cloudflare.com`
		A	173.245.58.193^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marjory.ns.cloudflare.com`
NS	`ray.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ray.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ray.ns.cloudflare.com`
		A	108.162.193.138^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
		A	172.64.33.138^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
		A	173.245.59.138^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ray.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.11.173, 172.67.166.178
		IPv6 hints	2606:4700:3034::6815:bad, 2606:4700:3034::ac43:a6b2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=254, name=cloudflare-ech.com
SOA	`marjory.ns.cloudflare.com`dns@cloudflare.com serial=2402722018

`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=1778294201

⚠️ On DNS blocklist: multi, pro, pro.plus, tif, ultimate

Same first word

caoptimumsign.com

Similar names

siamcomputing.com

DNS History

6 records (6 active, 0 former)

●NSmarjory.ns.cloudflare.com2026-04-27 → 2026-05-09 · 2 obs

● 2026-04-27 06:02:04
● 2026-05-09 02:58:42

●NSray.ns.cloudflare.com2026-04-27 → 2026-05-09 · 2 obs

● 2026-04-27 06:02:04
● 2026-05-09 02:58:42

●A104.21.11.1732026-04-27 → 2026-05-09 · 2 obs

● 2026-04-27 06:02:04
● 2026-05-09 02:58:42

●A172.67.166.1782026-04-27 → 2026-05-09 · 2 obs

● 2026-04-27 06:02:04
● 2026-05-09 02:58:42

●A2606:4700:3034::6815:bad2026-04-27 → 2026-05-09 · 2 obs

● 2026-04-27 06:02:04
● 2026-05-09 02:58:42

●A2606:4700:3034::ac43:a6b22026-04-27 → 2026-05-09 · 2 obs

● 2026-04-27 06:02:04
● 2026-05-09 02:58:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net...	-
caoptimumsign.com	ray.ns.cloudflare.com, marjory.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.193

NS records: ray.ns.cloudflare.com, marjory.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caoptimumsign.com (unsigned zone)

⏱️ Timing

Total: 410ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.11.173, 172.67.166.178`
AAAA	2	`2606:4700:3034::ac43:a6b2, 2606:4700:3034::6815:bad`
NS	2	`marjory.ns.cloudflare.com, ray.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`marjory.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

caoptimumsign.com points to four IP numbers: 2606:4700:3034::6815:bad, 2606:4700:3034::ac43:a6b2, 104.21.11.173 and 172.67.166.178.

Other host names, for instance www.gzhsheng.com, nerdycms.com, ketqua8s.com, ricky-hu.com and cybfsp.com share IP numbers with caoptimumsign.com.

Name Servers

Delegation for caoptimumsign.com rests with two name servers, marjory.ns.cloudflare.com and ray.ns.cloudflare.com.

caoptimumsign.com shares the same name server setup as other domains, including pqpqwn.com, defutureupdates.com, nirm3rvonecidsmlwew.com, cantechupdate.com and ghtriiokol.site.

caoptimumsign.com at least partially shares name servers with other domains, for instance rootstein.com, muskogeenow.com, hearthur5506.com, caodangyduocyersin.edu.vn and mainemx.com.

These name servers are commonly used with the name servers ines.ns.cloudflare.com.

Host names with six IP numbers: marjory.ns.cloudflare.com points to: 2606:4700:50::adf5:3ac1, 2803:f800:50::6ca2:c0c1, 2a06:98c1:50::ac40:20c1, 108.162.192.193, 172.64.32.193 and 173.245.58.193. ray.ns.cloudflare.com points to: 2606:4700:58::adf5:3b8a, 2803:f800:50::6ca2:c18a, 2a06:98c1:50::ac40:218a, 108.162.193.138, 172.64.33.138 and 173.245.59.138.

caoptimumsign.com - robtex.com