🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cdnet0.circadesign.com`

DNSSEC	⚠️ Not signed
A	216.16.39.100^{🇺🇸 CLARITY-1216.16.0.0/17 Vast Broadband}
		PTR	`cdnet0.circadesign.com`

`circadesign.com`

	DNSSEC	⚠️ Not signed
	A	216.16.39.100^{🇺🇸 CLARITY-1216.16.0.0/17 Vast Broadband}
	NS	`ns1.circadesign.com` ⭐
	NS	`ns2.circadesign.com`
	MX	`sendmail.circadesign.com` ⭐
	TXT	`v=spf1 mx ip4:216.16.39.47 ip4:216.16.39.3 ip4:216.16.39.100 ip4:199.16.139.1...`
	SOA	`ns1.circadesign.com`webserver@circadesign@com serial=678

WOT: SAFE (62/100)
WOT: SAFE (68/100)

PTR for

100.39.16.216.in-addr.arpa

Previous names

Next names

ftp.circadesign.com

ns1.circadesign.com

ns2.circadesign.com

sendmail.circadesign.com

webmail.circadesign.com

DNS History

1 record (1 active, 0 former)

●A216.16.39.1002014-11-05 → 2026-08-17 · 5 obs

● 2014-11-05 14:25:54
● 2016-08-10 11:35:22
○ 2026-03-09 14:22:06
● 2026-06-04 18:40:54
● 2026-08-17 16:29:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, a.gtld-servers.net...	-
circadesign.com	ns1.circadesign.com, ns2.circadesign.com	2 records

✅ Authoritative Response

Server:216.16.39.3

NS records: ns1.circadesign.com, ns2.circadesign.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for circadesign.com (unsigned zone)

⏱️ Timing

Total: 216ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.16.39.100`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.circadesign.com, ns2.circadesign.com)

Analysis

IP Addresses

cdnet0.circadesign.com resolves to just one IP address, 216.16.39.100.

Two other host names, along with webserver.circadesign.com, micro-medical.com and leaseaudit.com, also share IP numbers with cdnet0.circadesign.com.

cdnet0.circadesign.com - robtex.com