`mainframesupport.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

mainframesupport.com

DNS History

3 records (3 active, 0 former)

●NSns.buydomains.com2026-03-18 → 2026-03-23 · 2 obs

● 2026-03-18 13:30:36
● 2026-03-23 13:07:30

●NSthis-domain-for-sale.com2026-03-18 → 2026-03-23 · 2 obs

● 2026-03-18 13:30:36
● 2026-03-23 13:07:30

●A207.148.248.1432015-12-04 → 2026-03-23 · 2 obs

● 2015-12-04 16:12:54
● 2026-03-23 13:07:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mainframesupport.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 mainframesupport.com (unsigned zone)

⏱️ Timing

Total: 4631ms | 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

mainframesupport.com points to a single IP: 207.148.248.143.

Other host names, for instance ns1.digitalchains.com, grovercity.com, mercury.sitewebmasters.com, wellnessreader.com and essentialhoopla.com share IP numbers with mainframesupport.com.

Name Servers

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

mainframesupport.com uses the same name server setup as other domains, for example superherocartoonsite.com, mrclip.com, clipsafe.com, reportoptions.com and codingteam.com.

Host names with one IP number

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

Host name 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

mainframesupport.com - robtex.com