`efficientmachine.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

hostmaster.efficientmachine.com

Same first word

efficientmachine.com

DNS History

6 records (3 active, 3 former)

●NSns.buydomains.com2015-10-26 → 2026-03-23 · 2 obs

● 2015-10-26 00:54:28
● 2026-03-23 22:49:12

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

○ 2015-10-26 00:54:28
● 2026-03-23 04:08:56
● 2026-03-23 22:49:12

○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
○ 2026-03-23 22:49:12

●A207.148.248.1432017-02-08 → 2026-03-23 · 3 obs

○ 2016-04-24 08:19:04
● 2017-02-08 15:20:26
● 2026-03-23 22:49:12

○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
○ 2026-03-23 22:49:12

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

● 2015-06-07 01:25:46
○ 2015-10-26 00:54:28
○ 2026-03-23 22:49:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.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: 91ms | 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 parent of hostmaster.efficientmachine.com is efficientmachine.com.

IP Addresses

efficientmachine.com points to an IP address: 207.148.248.143.

other host names include serioushobbyist.com, quickgiggles.com, iseonline.com, berkeleyexpress.com and geekscircle.com; they share IP numbers with efficientmachine.com.

Name Servers

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

efficientmachine.com shares the same name server setup as other domains, for instance amjconsulting.com, ugen.net, defvac.com, meetmentor.com and pcad.org.

efficientmachine.com shares name servers with other domains at least partially, for instance creativeself.net, ethniceye.com, samuraimind.com and strongbin.com.

These name servers are commonly used alongside ns2.buydomains.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

efficientmachine.com - robtex.com