`costargroupsucks.com`

DNSSEC	⚠️ Not signed
NS	`ns1.costar.com` ⚠️ Not in zone NS records
		A	65.222.181.8^{🇺🇸 COSTAR-Reston65.222.180.0/23 Reston Subnet}
			PTR	`ns1.bizquest.com`
			PTR	`ns1.costar.com`
			PTR	`ns1.bizbuysell.net`
NS	`ns2.costar.com` ⚠️ Not in zone NS records
		A	204.253.48.130^{🇺🇸 CoStarPA204.253.48.0/24 Palo Alto Subnet}
			PTR	`ns2.bizquest.com`
			PTR	`ns2.costar.com`

`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=1776999896

Same first word

costargroupsucks.com

DNS History

2 records (2 active, 0 former)

●NSns1.costar.com2026-03-17 → 2026-04-24 · 2 obs

● 2026-03-17 16:09:34
● 2026-04-24 03:19:26

●NSns2.costar.com2026-03-17 → 2026-04-24 · 2 obs

● 2026-03-17 16:09:34
● 2026-04-24 03:19:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
costargroupsucks.com	ns1.costar.com, ns2.costar.com	2 records

✅ Authoritative Response

Server:204.253.48.130

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for costargroupsucks.com (unsigned zone)

⏱️ Timing

Total: 212ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.costar.com, ns2.costar.com)

Analysis

Name Servers

costargroupsucks.com's delegation uses two name servers: ns1.costar.com and ns2.costar.com.

costargroupsucks.com uses the same name server setup as other domains, such as forummetiersimmobilier.com, findafranchise.us, apartmenthomeliving.net, costargroup.cn and apartmenthomeliving.org.

costargroupsucks.com at least partially shares name servers with other domains, including landandfarm.com, forrentu.com, apartmentfinder.com, hoteldataconference.com and loopnet.com.

These name servers are commonly used with a1-73.akam.net, a22-64.akam.net, a3-65.akam.net, a4-66.akam.net, a6-67.akam.net and a9-64.akam.net.

Host names with a single IP address: ns1.costar.com points to 65.222.181.8; ns2.costar.com points to 204.253.48.130.

costargroupsucks.com - robtex.com

costargroupsucks.com

com