`progressivemastery.com`

DNSSEC	⚠️ Not signed
A	208.73.209.18^{🇻🇬 AS401348208.73.209.0/24}
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`
SOA	`ns.buydomains.com`bd-operations@namemedia.com 2023-02-05 #16

`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

mail.progressivemastery.com

Same first word

progressivemastery.com

DNS History

10 records (3 active, 7 former)

●NSns.buydomains.com2016-06-26 → 2026-03-23 · 3 obs

○ 2016-03-22 00:59:02
● 2016-06-26 14:25:08
● 2026-03-23 15:36:10

○NSns44.ipserverone.com2015-06-07 → 2016-03-22 · 4 obs

● 2015-06-07 00:45:34
● 2016-03-22 00:59:02
○ 2016-06-26 14:25:08
○ 2026-03-23 15:36:10

○NSns45.ipserverone.com2015-06-07 → 2016-03-22 · 4 obs

● 2015-06-07 00:45:34
● 2016-03-22 00:59:02
○ 2016-06-26 14:25:08
○ 2026-03-23 15:36:10

●NSthis-domain-for-sale.com2026-03-17 → 2026-03-23 · 3 obs

○ 2016-06-26 14:25:08
● 2026-03-17 16:29:36
● 2026-03-23 15:36:10

○MXmail.progressivemastery.com2015-06-07 → 2016-03-22 · 4 obs

● 2015-06-07 00:45:34
● 2016-03-22 00:59:02
○ 2016-06-26 14:25:08
○ 2026-03-23 15:36:10

○A103.21.180.452015-06-07 → 2016-03-22 · 4 obs

● 2015-06-07 00:45:34
● 2016-03-22 00:59:02
○ 2016-06-26 14:25:08
○ 2026-03-23 15:36:10

○A141.8.225.1242016-06-26 → 2016-06-26 · 4 obs

○ 2016-03-22 00:59:02
● 2016-06-26 14:25:08
○ 2017-03-16 08:36:14
○ 2026-03-23 15:36:10

○A207.148.248.1452017-03-16 → 2017-03-16 · 4 obs

○ 2016-06-26 14:25:08
● 2017-03-16 08:36:14
○ 2019-12-29 08:24:48
○ 2026-03-23 15:36:10

●A208.73.209.182026-03-18 → 2026-03-23 · 3 obs

○ 2026-03-17 16:29:36
● 2026-03-18 15:14:38
● 2026-03-23 15:36:10

○A209.99.64.442019-12-29 → 2019-12-29 · 4 obs

○ 2017-03-16 08:36:14
● 2019-12-29 08:24:48
○ 2026-03-17 16:29:36
○ 2026-03-23 15:36:10

🔍 DNS Trace

📋 Delegation Chain

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

⏱️ Timing

Total: 3550ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`208.73.209.18`
SOA	1	`ns.buydomains.com bd-operations.namemedi`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)

Analysis

Hierarchy

mail.progressivemastery.com has progressivemastery.com as its parent.

IP Addresses

progressivemastery.com maps to IP address 208.73.209.18.

Other host names, for instance traumarelease.com, dothingsright.com, assurepath.com, dynamicagility.com and ifabricating.com share IP numbers with progressivemastery.com.

Name Servers

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

progressivemastery.com uses the same name server configuration as other domains, such as historicautomobiles.com, proprint.org, albani.net, servicesmonthly.com and cherrytruffles.com.

progressivemastery.com shares name servers with other domains at least partially, for instance aramisdesign.com and visiblenoise.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

progressivemastery.com - robtex.com