`efficientmachine.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
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=1783639357

Subdomains

hostmaster.efficientmachine.com

Same first word

efficientmachine.com

DNS History

6 records (3 active, 3 former)

●NSns.buydomains.com2015-10-26 → 2026-07-09 · 2 obs

● 2015-10-26 00:54:28
● 2026-07-09 23:33:56

●NSthis-domain-for-sale.com2026-03-23 → 2026-07-09 · 3 obs

○ 2015-10-26 00:54:28
● 2026-03-23 04:08:56
● 2026-07-09 23:33:56

○A141.8.225.1242016-01-14 → 2016-04-24 · 5 obs

○ 2015-10-26 00:54:28
● 2016-01-14 00:33:24
● 2016-04-24 08:19:04
○ 2017-02-08 15:20:26
○ 2026-07-09 23:33:56

●A207.148.248.1432017-02-08 → 2026-07-09 · 3 obs

○ 2016-04-24 08:19:04
● 2017-02-08 15:20:26
● 2026-07-09 23:33:56

○A50.63.202.1042015-10-26 → 2015-10-26 · 4 obs

○ 2015-06-07 01:25:46
● 2015-10-26 00:54:28
○ 2016-01-14 00:33:24
○ 2026-07-09 23:33:56

○A66.151.181.492015-06-07 → 2015-06-07 · 3 obs

● 2015-06-07 01:25:46
○ 2015-10-26 00:54:28
○ 2026-07-09 23:33:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...	-
efficientmachine.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server:52.4.207.204

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for efficientmachine.com (unsigned zone)

⏱️ Timing

Total: 3947ms | 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

The domain hostmaster.efficientmachine.com falls under the parent efficientmachine.com.

IP Addresses

efficientmachine.com has exactly one IP address — 207.148.248.143.

serioushobbyist.com, quickgiggles.com, iseonline.com plus two other host names have IP numbers in common with efficientmachine.com.

Name Servers

Two name servers handle the delegation for efficientmachine.com: this-domain-for-sale.com and ns.buydomains.com.

The name server configuration of efficientmachine.com is shared with other domains, for instance spidercow.com, rustyimages.com, amjconsulting.com and two others.

efficientmachine.com shares at least some of its name servers with other domains, for example creativeself.net, ethniceye.com, cheapclimbing.com and culinaryglobe.com.

These name servers tend to be used in conjunction with the name servers ns2.buydomains.com.

this-domain-for-sale.com directs to 52.20.26.87, as does ns.buydomains.com — both hostnames resolve to that one IP address.

this-domain-for-sale.com along with ns.buydomains.com each resolve to 52.20.26.87 IP addresses.

efficientmachine.com - robtex.com