`excelinstructor.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

excelinstructor.com

DNS History

6 records (3 active, 3 former)

●NSns.buydomains.com2008-03-12 → 2026-03-23 · 4 obs

● 2008-03-12 14:53:46
○ 2015-07-15 14:11:40
● 2026-02-24 03:41:36
● 2026-03-23 02:58:00

●NSthis-domain-for-sale.com2008-03-12 → 2026-03-23 · 4 obs

● 2008-03-12 14:53:46
○ 2015-07-15 14:11:40
● 2026-02-24 03:41:36
● 2026-03-23 02:58:00

○MXdev.null2008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 14:53:46
○ 2015-07-15 14:11:40
○ 2026-03-23 02:58:00

●A207.148.248.1432015-10-14 → 2026-03-23 · 3 obs

○ 2015-07-15 14:11:40
● 2015-10-14 05:12:40
● 2026-03-23 02:58:00

○A208.254.26.1322008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 14:53:46
○ 2015-07-15 14:11:40
○ 2026-03-23 02:58:00

○A66.151.181.492015-07-15 → 2015-07-15 · 4 obs

○ 2008-03-12 14:53:46
● 2015-07-15 14:11:40
○ 2015-10-14 05:12:40
○ 2026-03-23 02:58:00

🔍 DNS Trace

📋 Delegation Chain

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

⏱️ Timing

Total: 108ms | 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

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

Other host names, for instance littleweek.com, mail.jamesassoc.com, viriex.com, choicelabel.com and accountantconsulting.com share IP numbers with excelinstructor.com.

Name Servers

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

excelinstructor.com uses the same name server setup as other domains, for instance auctionwhatever.com, healthwellnessbeauty.com, onlinebarbers.com, chesapeakelandscaping.com and ideagov.com.

excelinstructor.com shares name servers with other domains at least partially; for example schoolyardstyle.com, impact-parts.com, eclipsespas.com and audiologyworld.com.

Host names with a single IP number:

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

ns.buydomains.com points to 52.20.26.87.

Host names pointing to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com.

excelinstructor.com - robtex.com