`theoremadvertising.com`

DNSSEC	⚠️ Not signed
A	138.68.251.113^{🇺🇸 DIGITALOCEAN138.68.240.0/20 DigitalOcean}
NS	`ns1.digitalocean.com` ⭐
		A	2606:4700:52::ac40:34d2^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
		A	172.64.52.210^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
NS	`ns2.digitalocean.com`
		A	2606:4700:5a::ac40:3515^{🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
		A	172.64.53.21^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
NS	`ns3.digitalocean.com`
		A	2606:4700:52::ac40:31d1^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
		A	172.64.49.209^{🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
MX	`theoremadvertising-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::14^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-byapr04cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:c91d::a^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr21cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f903::^{🇺🇸 Microsoft2a01:111:f000::/36}
		A	52.101.8.46^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm6pr05cu00406.inbound.protection.outlook.com`
		A	52.101.11.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr03cu00102.inbound.protection.outlook.com`
		A	52.101.41.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01600.inbound.protection.outlook.com`
		A	52.101.194.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch5pr02cu00401.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns1.digitalocean.com`hostmaster@theoremadvertising.com serial=1770309966

`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

www.theoremadvertising.com

Same first word

theoremadvertising.com

DNS History

13 records (5 active, 8 former)

○NSdns1.registrar-servers.com2019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

○NSdns2.registrar-servers.com2019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

●NSns1.digitalocean.com2026-03-09 → 2026-03-09 · 3 obs

○ 2019-01-22 06:10:24
● 2026-03-09 16:48:18
● 2026-03-09 16:48:20

●NSns2.digitalocean.com2026-03-09 → 2026-03-09 · 3 obs

○ 2019-01-22 06:10:24
● 2026-03-09 16:48:18
● 2026-03-09 16:48:20

●NSns3.digitalocean.com2026-03-09 → 2026-03-09 · 3 obs

○ 2019-01-22 06:10:24
● 2026-03-09 16:48:18
● 2026-03-09 16:48:20

○MXeforward1.registrar-servers.com2019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

○MXeforward2.registrar-servers.com2019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

○MXeforward3.registrar-servers.com2019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

○MXeforward4.registrar-servers.com2019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

○MXeforward5.registrar-servers.com2019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

●MXtheoremadvertising-com.mail.protection.outlook.com2026-03-09 → 2026-03-09 · 3 obs

○ 2019-01-22 06:10:24
● 2026-03-09 16:48:18
● 2026-03-09 16:48:20

●A138.68.251.1132026-03-09 → 2026-03-09 · 3 obs

○ 2019-01-22 06:10:24
● 2026-03-09 16:48:18
● 2026-03-09 16:48:20

○A192.64.119.492019-01-22 → 2019-01-22 · 3 obs

● 2019-01-22 06:10:24
○ 2026-03-09 16:48:18
○ 2026-03-09 16:48:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
theoremadvertising.com	ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com	3 records

✅ Authoritative Response

Server: 172.64.53.21

NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for theoremadvertising.com (unsigned zone)

⏱️ Timing

Total: 192ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`138.68.251.113`
NS	3	`ns3.digitalocean.com, ns1.digitalocean.com...`
MX	1	`theoremadvertising-com.mail.protection.o`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.digitalocean.com hostmaster.theorema`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com)

Analysis

Hierarchy

The parent of www.theoremadvertising.com is theoremadvertising.com.

IP Addresses

theoremadvertising.com points to an IP address: 138.68.251.113.

Name Servers

theoremadvertising.com is delegated to three name servers ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

theoremadvertising.com at least partially shares name servers with other domains, for instance safetyasaservice.com, estudio-gd.com.ar, imno.dev, do.b-cloud.nl and parkerscrazycookies.com.

Host names with two IP numbers:

ns1.digitalocean.com points to 2606:4700:52::ac40:34d2 and 172.64.52.210; ns2.digitalocean.com points to 2606:4700:5a::ac40:3515 and 172.64.53.21; ns3.digitalocean.com points to 2606:4700:52::ac40:31d1 and 172.64.49.209.

Mail Servers

theoremadvertising.com is handled by a single mail server, theoremadvertising-com.mail.protection.outlook.com.

Hostname theoremadvertising-com.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:c902::14, 2a01:111:f403:c91d::a, 2a01:111:f403:c946::, 2a01:111:f403:f903::, 52.101.8.46, 52.101.11.2, 52.101.41.24 and 52.101.194.17.

theoremadvertising.com - robtex.com