`optimumexercise.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

Same first word

optimumexercise.com

DNS History

4 records (3 active, 1 former)

●NSns.buydomains.com2026-03-09 → 2026-03-23 · 2 obs

● 2026-03-09 21:21:58
● 2026-03-23 02:57:00

●NSthis-domain-for-sale.com2026-03-09 → 2026-03-23 · 2 obs

● 2026-03-09 21:21:58
● 2026-03-23 02:57:00

●A207.148.248.1432015-11-15 → 2026-03-23 · 3 obs

○ 2015-05-15 18:32:22
● 2015-11-15 06:43:44
● 2026-03-23 02:57:00

○A66.151.181.492015-05-15 → 2015-05-15 · 3 obs

● 2015-05-15 18:32:22
○ 2015-11-15 06:43:44
○ 2026-03-23 02:57:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
optimumexercise.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 optimumexercise.com (unsigned zone)

⏱️ Timing

Total: 270ms | 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

IP Addresses

optimumexercise.com resolves to a single IP address: 207.148.248.143.

Other host names including happyphysics.com, gurutour.com, patagoniavip.com, hamptonstudio.com and latesthealthnews.com share IP numbers with optimumexercise.com.

Name Servers

optimumexercise.com's delegation uses two name servers, this-domain-for-sale.com and ns.buydomains.com.

optimumexercise.com shares the same name server setup as other domains, for example yiceh.com, sustainablevermont.com, funradio.net, bereik.com and suppliergo.com.

optimumexercise.com shares some name servers with other domains, such as fitseats.com, seamlessfiles.com, guiltybystander.com and adornonline.com.

Host names with a single IP:

- this-domain-for-sale.com points to 52.20.26.87

- 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

optimumexercise.com - robtex.com