`improvtheory.com`

DNSSEC	⚠️ Not signed
A	65.254.248.131^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
		PTR	`65-254-248-131.yourhostingaccount.com`
NS	`ns1.fatcow.com` ⭐
		A	65.254.254.100^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`ns1.fatcow.com`
NS	`ns2.fatcow.com`
		A	65.254.254.101^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`ns2.fatcow.com`
MX	`mx.improvtheory.com` ⭐
		A	65.254.254.50^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`mail.yourhostingaccount.com`
		A	65.254.254.51^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`mail.yourhostingaccount.com`
		A	65.254.254.52^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`mail.yourhostingaccount.com`
		A	65.254.254.53^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`mail.yourhostingaccount.com`
		A	65.254.254.54^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`mail.yourhostingaccount.com`
		A	65.254.254.55^{🇺🇸 EIG-2987365.254.224.0/19 TML Customer}
			PTR	`mail.yourhostingaccount.com`
TXT	`v=spf1 ip4:38.113.1.0/24 ip4:38.113.20.0/24 ip4:65.254.224.0/19 include:websi...`
SOA	`ns1.fatcow.com`dnsadmin@fatcow.com 2022-06-19 #49

`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=1774788832

Same first word

improvtheory.com

DNS History

12 records (4 active, 8 former)

○NSdns1.registrar-servers.com2018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

○NSdns2.registrar-servers.com2018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

●NSns1.fatcow.com2026-03-05 → 2026-03-29 · 3 obs

○ 2018-10-16 11:52:16
● 2026-03-05 02:10:00
● 2026-03-29 13:02:28

●NSns2.fatcow.com2026-03-05 → 2026-03-29 · 3 obs

○ 2018-10-16 11:52:16
● 2026-03-05 02:10:00
● 2026-03-29 13:02:28

○MXeforward1.registrar-servers.com2018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

○MXeforward2.registrar-servers.com2018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

○MXeforward3.registrar-servers.com2018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

○MXeforward4.registrar-servers.com2018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

○MXeforward5.registrar-servers.com2018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

●MXmx.improvtheory.com2026-03-05 → 2026-03-29 · 3 obs

○ 2018-10-16 11:52:16
● 2026-03-05 02:10:00
● 2026-03-29 13:02:28

○A162.255.119.692018-10-16 → 2018-10-16 · 3 obs

● 2018-10-16 11:52:16
○ 2026-03-05 02:10:00
○ 2026-03-29 13:02:28

●A65.254.248.1312026-03-05 → 2026-03-29 · 3 obs

○ 2018-10-16 11:52:16
● 2026-03-05 02:10:00
● 2026-03-29 13:02:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
improvtheory.com	ns1.fatcow.com, ns2.fatcow.com	2 records

✅ Authoritative Response

Server:65.254.254.101

NS records: ns1.fatcow.com, ns2.fatcow.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for improvtheory.com (unsigned zone)

⏱️ Timing

Total: 126ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`65.254.248.131`
NS	2	`ns1.fatcow.com, ns2.fatcow.com`
MX	1	`mx.improvtheory.com (pri: 30)`
TXT	1	`v=spf1 ip4:38.113.1.0/24 ip4:38.113.20.0`
SOA	1	`ns1.fatcow.com dnsadmin.fatcow.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.fatcow.com, ns2.fatcow.com)

Analysis

IP Addresses

improvtheory.com resolves to one IP number: 65.254.248.131.

Other host names, for instance osagecafe.org, upcycledonline.com, cameronart.com, scintillatingsoftware.com and concept-connections.com share IP numbers with improvtheory.com.

Name Servers

improvtheory.com's delegation uses two name servers: ns1.fatcow.com and ns2.fatcow.com.

improvtheory.com uses the same name server setup as other domains, such as yukihanajapan.com, pjdsr.com, rockersstone.com, t-tg.com and bookyourkidsparty.com.

improvtheory.com at least partially shares name servers with other domains, including lightchaser.com, berranteiro.com, sgtherapy.com, virtualscape.mobi and catchkit.com.

these name servers are commonly used alongside the name servers ns3.fatcow.com, ns1.yourhostingaccount.com, ns2.yourhostingaccount.com, ns1.ipage.com and ns2.ipage.com.

Host names with a single IP address: ns1.fatcow.com points to 65.254.254.100; ns2.fatcow.com points to 65.254.254.101.

Mail Servers

A single mail server handles improvtheory.com, mx.improvtheory.com.

mx.improvtheory.com has six IPs: 65.254.254.50, 65.254.254.51, 65.254.254.52, 65.254.254.53, 65.254.254.54 and 65.254.254.55.

improvtheory.com - robtex.com