`certifiedtool.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
		PTR	`ip-207-148-248-143.defastlink.net`
NS	`ns.buydomains.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`
NS	`this-domain-for-sale.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.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=1771291435

Subdomains

ctgroup.certifiedtool.com

Same first word

certifiedtool.de

DNS History

4 records (3 active, 1 former)

●NSns.buydomains.com2026-03-20 → 2026-03-20 · 1 obs

● 2026-03-20 01:42:52

●NSthis-domain-for-sale.com2026-03-20 → 2026-03-20 · 1 obs

● 2026-03-20 01:42:52

●A207.148.248.1432015-10-28 → 2026-03-20 · 3 obs

○ 2015-06-06 20:07:52
● 2015-10-28 04:17:06
● 2026-03-20 01:42:52

○A66.151.181.492015-06-06 → 2015-06-06 · 3 obs

● 2015-06-06 20:07:52
○ 2015-10-28 04:17:06
○ 2026-03-20 01:42:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
certifiedtool.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server: 52.20.26.87

NS records: ns.buydomains.com, this-domain-for-sale.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certifiedtool.com (unsigned zone)

⏱️ Timing

Total: 191ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)

Analysis

Hierarchy

certifiedtool.com is the parent of ctgroup.certifiedtool.com.

IP Addresses

certifiedtool.com points to a single IP number: 207.148.248.143.

other host names for instance ads.hairstyler.net, host.theorycrafter.com, mexicomp.com, www.desigis.com and sphar.com share IP numbers with certifiedtool.com.

Name Servers

certifiedtool.com is delegated to two name servers: this-domain-for-sale.com and ns.buydomains.com.

certifiedtool.com shares the same name server setup as other domains, for example poaservices.com, getmusic.org, fossport.com, eclondon.com and mdsp.net.

certifiedtool.com partially shares name servers with other domains, for instance itspp.com, filmakerslibrary.com and mucius.com.

Host names with a single IP number:

this-domain-for-sale.com points to 52.20.26.87 and ns.buydomains.com points to 52.20.26.87.

Host names that point to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com.

certifiedtool.com - robtex.com