`knowledgeharbor.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

knowledgeharbor.com

DNS History

14 records (3 active, 11 former)

●NSns.buydomains.com2026-03-19 → 2026-03-23 · 3 obs

○ 2017-03-16 02:30:48
● 2026-03-19 16:42:58
● 2026-03-23 06:59:00

○NSns1.linode.com2015-08-14 → 2017-03-16 · 5 obs

○ 2008-11-04 23:08:20
● 2015-08-14 07:44:36
● 2017-03-16 02:30:48
○ 2026-03-19 16:42:58
○ 2026-03-23 06:59:00

○NSns2.linode.com2015-08-14 → 2017-03-16 · 5 obs

○ 2008-11-04 23:08:20
● 2015-08-14 07:44:36
● 2017-03-16 02:30:48
○ 2026-03-19 16:42:58
○ 2026-03-23 06:59:00

○NSns3.helmtechsolutions.com2008-11-04 → 2008-11-04 · 3 obs

● 2008-11-04 23:08:20
○ 2015-08-14 07:44:36
○ 2026-03-23 06:59:00

○NSns3.linode.com2015-08-14 → 2017-03-16 · 5 obs

○ 2008-11-04 23:08:20
● 2015-08-14 07:44:36
● 2017-03-16 02:30:48
○ 2026-03-19 16:42:58
○ 2026-03-23 06:59:00

○NSns4.helmtechsolutions.com2008-11-04 → 2008-11-04 · 3 obs

● 2008-11-04 23:08:20
○ 2015-08-14 07:44:36
○ 2026-03-23 06:59:00

○NSns4.linode.com2015-08-14 → 2017-03-16 · 5 obs

○ 2008-11-04 23:08:20
● 2015-08-14 07:44:36
● 2017-03-16 02:30:48
○ 2026-03-19 16:42:58
○ 2026-03-23 06:59:00

○NSns5.linode.com2015-08-14 → 2017-03-16 · 5 obs

○ 2008-11-04 23:08:20
● 2015-08-14 07:44:36
● 2017-03-16 02:30:48
○ 2026-03-19 16:42:58
○ 2026-03-23 06:59:00

●NSthis-domain-for-sale.com2026-03-19 → 2026-03-23 · 3 obs

○ 2017-03-16 02:30:48
● 2026-03-19 16:42:58
● 2026-03-23 06:59:00

○MXmail.knowledgeharbor.com2008-11-04 → 2017-03-16 · 4 obs

● 2008-11-04 23:08:20
● 2017-03-16 02:30:48
○ 2026-03-19 16:42:58
○ 2026-03-23 06:59:00

●A207.148.248.1432026-03-19 → 2026-03-23 · 3 obs

○ 2017-03-16 02:30:48
● 2026-03-19 16:42:58
● 2026-03-23 06:59:00

○A209.40.97.1172008-11-04 → 2008-11-04 · 3 obs

● 2008-11-04 23:08:20
○ 2015-08-14 07:44:36
○ 2026-03-23 06:59:00

○A50.116.32.1742016-03-14 → 2017-03-16 · 5 obs

○ 2015-12-02 11:24:18
● 2016-03-14 10:54:00
● 2017-03-16 02:30:48
○ 2026-03-19 16:42:58
○ 2026-03-23 06:59:00

○A74.207.233.2402015-08-14 → 2015-12-02 · 5 obs

○ 2008-11-04 23:08:20
● 2015-08-14 07:44:36
● 2015-12-02 11:24:18
○ 2016-03-14 10:54:00
○ 2026-03-23 06:59:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net...	-
knowledgeharbor.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 knowledgeharbor.com (unsigned zone)

⏱️ Timing

Total: 885ms | 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

knowledgeharbor.com maps to IP address 207.148.248.143.

Other host names, for instance tuningproducts.com, hubcall.com, acesfootball.com, mobilden.com and zemion.com share IP numbers with knowledgeharbor.com.

Name Servers

Two name servers this-domain-for-sale.com and ns.buydomains.com are delegated to knowledgeharbor.com.

knowledgeharbor.com uses the same name server configuration as other domains, such as essentialrevolution.com, favperfume.com, oceantrim.com, orfco.com and noisecatcher.com.

knowledgeharbor.com shares name servers with other domains at least partially, for instance surrogacyone.com and estudiosempresariales.com.

Hostnames with one IP number:

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

ns.buydomains.com points to 52.20.26.87

Hostnames pointing to 52.20.26.87: this-domain-for-sale.com, ns.buydomains.com

knowledgeharbor.com - robtex.com