coolrx.com - dns.ninja

`coolrx.com`

DNSSEC	⚠️ Not signed
NS	`abbott.essilor.net` ⚠️ Not in zone NS records
		A	50.84.209.186^{🇺🇸 CBO_IPAM50.84.0.0/16 RR-Route}
			PTR	`syn-050-084-209-186.biz.spectrum.com`
NS	`costello.essilor.net` ⚠️ Not in zone NS records
		A	4.255.36.178^{🇺🇸 Microsoft4.240.0.0/12 MICROSOFT}

`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=1782647185

Same first word

coolrx.com

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DNS History

4 records (2 active, 2 former)

○NSabbott2026-03-07 → 2026-05-31 · 5 obs

○ 2015-08-16 01:29:12
● 2026-03-07 21:31:28
● 2026-05-31 05:10:34
○ 2026-06-10 16:21:32
○ 2026-06-28 12:01:24

●NSabbott.essilor.net2015-08-16 → 2026-06-28 · 2 obs

● 2015-08-16 01:29:12
● 2026-06-28 12:01:24

●NScostello.essilor.net2015-08-16 → 2026-06-28 · 2 obs

● 2015-08-16 01:29:12
● 2026-06-28 12:01:24

○A63.241.244.232015-08-16 → 2026-05-31 · 4 obs

● 2015-08-16 01:29:12
● 2026-05-31 05:10:34
○ 2026-06-10 16:21:32
○ 2026-06-28 12:01:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net...	-
coolrx.com	abbott.essilor.net, costello.essilor.net	-

✅ Authoritative Response

Server:4.255.36.178

NS records: abbott.essilor.net, costello.essilor.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coolrx.com (unsigned zone)

⏱️ Timing

Total: 4337ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`63.241.244.23`
NS	2	`abbott.essilor.net, costello.essilor.net`
TXT	1	`v=spf1 -all`
SOA	1	`abbott hostmaster.essilorusa.com`

Analysis

Name Servers

coolrx.com is served by two delegated name servers, abbott.essilor.net and costello.essilor.net.

coolrx.com shares its NS records with other domains, for example omics.com, ecpu.com, optical-suppliers.com and two others.

coolrx.com shares at least some of its name servers with other domains, including essilorlogo.com, essilorultimatelens.com, opticalone.com and two others.

These name servers are frequently seen alongside the name servers abbott.

abbott.essilor.net and costello.essilor.net each resolve to one IP number: abbott.essilor.net points to 50.84.209.186 and costello.essilor.net points to 4.255.36.178.