`designtheoryltd.com`

DNSSEC	⚠️ Not signed
A	165.160.13.20^{🇺🇸 CORPORATION-1165.160.13.0/24 251 Little Falls Drive Wilmington DE 19808 United States}
		PTR	`ip-165-160-13-20.defastlink.net`
A	165.160.15.20^{🇺🇸 CORPORATION-1165.160.15.0/24 251 Little Falls Drive Wilmington DE 19808 United States}
NS	`dns1.cscdns.net` ⭐ 🔒
		A	2610:a1:1022::100^{🇺🇸 MAINT-ID-120082610:a1:1022::/48 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
		A	156.154.130.100^{🇺🇸 MAINT-ID-12008156.154.130.0/24 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
NS	`dns2.cscdns.net` 🔒
		A	2610:a1:1023::100^{🇺🇸 MAINT-ID-120082610:a1:1023::/48 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
		A	156.154.131.100^{🇺🇸 MAINT-ID-12008156.154.131.0/24 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
MX	`d300137a.ess.barracudanetworks.com` ⭐
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
MX	`d300137b.ess.barracudanetworks.com`⁽¹⁰⁾
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
TXT	`MS=ms81252079`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.c...`
SOA	`dns1.cscdns.net`hostmaster@cscdns.net 2016-03-14 #12

`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

designtheoryltd.com

DNS History

11 records (6 active, 5 former)

●NSdns1.cscdns.net2016-03-24 → 2026-03-24 · 3 obs

○ 2015-10-12 17:30:16
● 2016-03-24 11:00:18
● 2026-03-24 03:14:46

●NSdns2.cscdns.net2016-03-24 → 2026-03-24 · 3 obs

○ 2015-10-12 17:30:16
● 2016-03-24 11:00:18
● 2026-03-24 03:14:46

○NSpdns01.domaincontrol.com2015-05-19 → 2015-10-12 · 4 obs

● 2015-05-19 12:44:26
● 2015-10-12 17:30:16
○ 2016-03-24 11:00:18
○ 2026-03-24 03:14:46

○NSpdns02.domaincontrol.com2015-05-19 → 2015-10-12 · 4 obs

● 2015-05-19 12:44:26
● 2015-10-12 17:30:16
○ 2016-03-24 11:00:18
○ 2026-03-24 03:14:46

●MXd300137a.ess.barracudanetworks.com2026-03-21 → 2026-03-24 · 3 obs

○ 2017-04-18 17:50:24
● 2026-03-21 20:26:14
● 2026-03-24 03:14:46

●MXd300137b.ess.barracudanetworks.com2026-03-21 → 2026-03-24 · 3 obs

○ 2017-04-18 17:50:24
● 2026-03-21 20:26:14
● 2026-03-24 03:14:46

○MXserver1.inboundmx.com2015-05-19 → 2017-04-18 · 4 obs

● 2015-05-19 12:44:26
● 2017-04-18 17:50:24
○ 2026-03-21 20:26:14
○ 2026-03-24 03:14:46

○MXserver2.inboundmx.com2015-05-19 → 2017-04-18 · 4 obs

● 2015-05-19 12:44:26
● 2017-04-18 17:50:24
○ 2026-03-21 20:26:14
○ 2026-03-24 03:14:46

●A165.160.13.202016-03-24 → 2026-03-24 · 3 obs

○ 2015-10-12 17:30:16
● 2016-03-24 11:00:18
● 2026-03-24 03:14:46

●A165.160.15.202016-03-24 → 2026-03-24 · 3 obs

○ 2015-10-12 17:30:16
● 2016-03-24 11:00:18
● 2026-03-24 03:14:46

○A184.168.221.562015-05-19 → 2015-10-12 · 4 obs

● 2015-05-19 12:44:26
● 2015-10-12 17:30:16
○ 2016-03-24 11:00:18
○ 2026-03-24 03:14:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
designtheoryltd.com	dns1.cscdns.net, dns2.cscdns.net	-

✅ Authoritative Response

Server:156.154.131.100

NS records: dns1.cscdns.net, dns2.cscdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for designtheoryltd.com (unsigned zone)

⏱️ Timing

Total: 117ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`165.160.15.20, 165.160.13.20`
NS	2	`dns1.cscdns.net, dns2.cscdns.net`
MX	2	`d300137a.ess.barracudanetworks.com (pri:, d300137b.ess.barracudanetworks.com (pri:`
TXT	2	`MS=ms81252079, v=spf1 include:spf.protection.outlook.co`
SOA	1	`dns1.cscdns.net hostmaster.cscdns.net`

Analysis

IP Addresses

designtheoryltd.com points to two IPs: 165.160.13.20 and 165.160.15.20.

Other host names, for instance melvita.fr, rollsroyce.com.sv, verizonwireles.com, cencorapharmaservices.org and bostonscientificcorporation.com share IP numbers with designtheoryltd.com.

Name Servers

Two name servers dns1.cscdns.net and dns2.cscdns.net are delegated to designtheoryltd.com.

designtheoryltd.com uses the same name server configuration as other domains, such as it-free.de, beyonceperfume.net, wwwkohlsccoronavirus.com, blatzbeer.com and orad.com.cn.

designtheoryltd.com at least partially shares name servers with other domains such as mfog.dk, bankofameria.com, bofa-help.net, ibsshopsave.com and regus.ma.