`greatchallenges.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=1776205752

Subdomains

nameserver1.greatchallenges.com

Same first word

greatchallenges.com

DNS History

4 records (3 active, 1 former)

●NSns.buydomains.com2015-06-25 → 2026-04-14 · 2 obs

● 2015-06-25 06:57:14
● 2026-04-14 22:39:24

●NSthis-domain-for-sale.com2026-04-10 → 2026-04-14 · 3 obs

○ 2015-06-25 06:57:14
● 2026-04-10 18:14:16
● 2026-04-14 22:39:24

●A207.148.248.1432015-10-31 → 2026-04-14 · 3 obs

○ 2015-06-25 06:57:14
● 2015-10-31 05:39:16
● 2026-04-14 22:39:24

○A50.63.202.1042015-06-25 → 2015-06-25 · 3 obs

● 2015-06-25 06:57:14
○ 2015-10-31 05:39:16
○ 2026-04-14 22:39:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net...	-
greatchallenges.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 greatchallenges.com (unsigned zone)

⏱️ Timing

Total: 75ms | 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

greatchallenges.com is the parent of nameserver1.greatchallenges.com.

IP Addresses

greatchallenges.com points to a single IP number: 207.148.248.143.

other host names for instance artandoffice.com, youngmanagers.com, developmentsinc.com, exhibitorshop.com and herbalhealingcenter.com share IP numbers with greatchallenges.com.

Name Servers

greatchallenges.com is delegated to two name servers: this-domain-for-sale.com and ns.buydomains.com.

greatchallenges.com shares the same name server setup as other domains, for example investmentannuity.com, catescreations.com, doremedia.com, urbanurge.com and yourhousekeepers.com.

Host names with a single IP number:

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

greatchallenges.com - robtex.com