`mainframeusa.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	`ns2.buydomains.com` ⚠️ Not in zone NS records

`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=1778608856

Same first word

mainframeusa.com

DNS History

17 records (3 active, 14 former)

●NSns.buydomains.com2026-04-26 → 2026-05-12 · 3 obs

○ 2017-01-10 09:40:04
● 2026-04-26 22:02:24
● 2026-05-12 18:02:30

●NSns2.buydomains.com2026-04-26 → 2026-05-12 · 3 obs

○ 2017-01-10 09:40:04
● 2026-04-26 22:02:24
● 2026-05-12 18:02:30

○NSns77.domaincontrol.com2015-11-12 → 2017-01-10 · 4 obs

● 2015-11-12 07:22:28
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

○NSns78.domaincontrol.com2015-11-12 → 2017-01-10 · 4 obs

● 2015-11-12 07:22:28
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

○MXalt1.aspmx.l.google.com2015-11-12 → 2017-01-10 · 4 obs

● 2015-11-12 07:22:28
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

○MXalt2.aspmx.l.google.com2015-11-12 → 2017-01-10 · 4 obs

● 2015-11-12 07:22:28
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

○MXalt3.aspmx.l.google.com2015-11-12 → 2017-01-10 · 4 obs

● 2015-11-12 07:22:28
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

○MXalt4.aspmx.l.google.com2015-11-12 → 2017-01-10 · 4 obs

● 2015-11-12 07:22:28
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

○MXaspmx.l.google.com2015-11-12 → 2017-01-10 · 4 obs

● 2015-11-12 07:22:28
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

○MXmailstore1.secureserver.net2015-11-12 → 2015-11-12 · 3 obs

● 2015-11-12 07:22:28
○ 2016-02-11 00:38:38
○ 2026-05-12 18:02:30

○MXsmtp.secureserver.net2015-11-12 → 2015-11-12 · 3 obs

● 2015-11-12 07:22:28
○ 2016-02-11 00:38:38
○ 2026-05-12 18:02:30

○A198.185.159.1442015-11-12 → 2015-11-12 · 3 obs

● 2015-11-12 07:22:28
○ 2016-02-11 00:38:38
○ 2026-05-12 18:02:30

○A198.185.159.1452015-11-12 → 2015-11-12 · 3 obs

● 2015-11-12 07:22:28
○ 2016-02-11 00:38:38
○ 2026-05-12 18:02:30

○A198.49.23.1442015-11-12 → 2015-11-12 · 3 obs

● 2015-11-12 07:22:28
○ 2016-02-11 00:38:38
○ 2026-05-12 18:02:30

○A198.49.23.1452015-11-12 → 2015-11-12 · 3 obs

● 2015-11-12 07:22:28
○ 2016-02-11 00:38:38
○ 2026-05-12 18:02:30

●A207.148.248.1432026-04-26 → 2026-05-12 · 3 obs

○ 2017-01-10 09:40:04
● 2026-04-26 22:02:24
● 2026-05-12 18:02:30

○A23.227.38.712016-02-11 → 2017-01-10 · 5 obs

○ 2015-11-12 07:22:28
● 2016-02-11 00:38:38
● 2017-01-10 09:40:04
○ 2026-04-26 22:02:24
○ 2026-05-12 18:02:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mainframeusa.com	ns.buydomains.com, ns2.buydomains.com	2 records

✅ Authoritative Response

Server:52.4.207.204

NS records: ns.buydomains.com, ns2.buydomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mainframeusa.com (unsigned zone)

⏱️ Timing

Total: 3040ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, ns2.buydomains.com)

Analysis

IP Addresses

mainframeusa.com points to an IP address: 207.148.248.143.

other host names include veiar.com, marketingtutors.com, studyltd.com, javacollection.com and gameanthology.com; they share IP numbers with mainframeusa.com.

Name Servers

Two name servers ns2.buydomains.com and ns.buydomains.com handle the delegation for mainframeusa.com.

mainframeusa.com shares the same name server setup as other domains, for instance snapshotspot.com, alliedmods.com, gipi.net, casperos.com and familystorehouse.com.

mainframeusa.com at least partially shares name servers with other domains, for instance bitsusa.com, paintedrealms.com, ipsychotherapy.com, talksport.org and celebritybay.com.

These name servers are commonly used alongside this-domain-for-sale.com.

Host names with a single IP address: ns.buydomains.com points to 52.20.26.87.

mainframeusa.com - robtex.com