`worldwidescience.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

www.worldwidescience.com

Same first word

worldwidescience.my

worldwidescience.com

worldwidescience.org

Similar names

scienceworldwide.com

DNS History

6 records (3 active, 3 former)

●NSns.buydomains.com2015-06-12 → 2026-03-24 · 2 obs

● 2015-06-12 02:28:54
● 2026-03-24 09:53:56

●NSthis-domain-for-sale.com2026-03-05 → 2026-03-24 · 3 obs

○ 2015-06-12 02:28:54
● 2026-03-05 20:05:16
● 2026-03-24 09:53:56

○A141.8.225.1242015-12-30 → 2016-09-13 · 5 obs

○ 2015-10-23 22:57:36
● 2015-12-30 18:55:12
● 2016-09-13 14:25:34
○ 2018-01-28 03:09:58
○ 2026-03-24 09:53:56

●A207.148.248.1432026-03-05 → 2026-03-24 · 3 obs

○ 2018-01-28 03:09:58
● 2026-03-05 20:05:16
● 2026-03-24 09:53:56

○A209.99.64.432018-01-28 → 2018-01-28 · 4 obs

○ 2016-09-13 14:25:34
● 2018-01-28 03:09:58
○ 2026-03-05 20:05:16
○ 2026-03-24 09:53:56

○A50.63.202.1042015-06-12 → 2015-10-23 · 4 obs

● 2015-06-12 02:28:54
● 2015-10-23 22:57:36
○ 2015-12-30 18:55:12
○ 2026-03-24 09:53:56

🔍 DNS Trace

📋 Delegation Chain

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

⏱️ Timing

Total: 3118ms | 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

worldwidescience.com is the parent of www.worldwidescience.com.

IP Addresses

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

other host names for instance powerearning.com, racerkit.com, symbioticdesigns.com, recruitteachers.com and skigel.com share IP numbers with worldwidescience.com.

Name Servers

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

worldwidescience.com shares the same name server setup as other domains, for example conradservices.com, phodream.com, viewspain.com, couplestherapy.net and migrantconnect.com.

worldwidescience.com at least partially shares name servers with other domains, for example arizonacraftsman.com and beissi.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.

worldwidescience.com - robtex.com