`sei-device.com`

DNSSEC	⚠️ Not signed
A	12.162.217.181^{🇺🇸 AS701812.128.0.0/9 12/8 upper half}
A	216.98.113.213^{🇺🇸 IIJ-AS216.98.96.0/19 IIJ America IPv4 BLOCK ( AS2497 )}
NS	`ns1.dyna-ns.net` ⭐
		A	2400:cb00:2049:1::a29f:1a5c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1b9e^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.92^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.dyna-ns.net`
		A	162.159.27.158^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.dyna-ns.net`
NS	`ns2.dyna-ns.net`
		A	2400:cb00:2049:1::a29f:1805^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1905^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.24.5^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.dyna-ns.net`
		A	162.159.25.5^{Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.dyna-ns.net`
MX	`seidevice-com0i.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:c927::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn8pr05cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr05cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:f90c::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr03cu00100.inbound.protection.outlook.com`
		A	52.101.11.15^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sa9pr02cu00207.inbound.protection.outlook.com`
		A	52.101.40.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy5pr03cu00204.inbound.protection.outlook.com`
		A	52.101.41.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00305.inbound.protection.outlook.com`
		A	52.101.41.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01600.inbound.protection.outlook.com`
TXT	`MS=D2A6B0E224B56FBBE92F7F4FC21A459A676614B2`
TXT	`apple-domain-verification=OwN4AZUmhTQBQ1Ac`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
TXT	`adobe-idp-site-verification=2912991280b38cf7ab0f8c90473b1d155beeb08e8b1686f23...`
SOA	`ns1.dyna-ns.net`hostmaster@sei-device.com 2026-03-11 #2

`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=1777108501

Subdomains

www.sei-device.com

Same first word

sei-device.com

DNS History

17 records (5 active, 12 former)

●NSns1.dyna-ns.net2026-03-10 → 2026-04-25 · 3 obs

○ 2017-04-10 17:02:46
● 2026-03-10 04:21:56
● 2026-04-25 09:24:46

○NSns1.mydyndns.org2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○NSns1175.dns.dyn.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

●NSns2.dyna-ns.net2026-03-10 → 2026-04-25 · 3 obs

○ 2017-04-10 17:02:46
● 2026-03-10 04:21:56
● 2026-04-25 09:24:46

○NSns2151.dns.dyn.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○NSns3142.dns.dyn.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○NSns4166.dns.dyn.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○MXalt1.aspmx.l.google.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○MXalt2.aspmx.l.google.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○MXaspmx.l.google.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○MXaspmx2.googlemail.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

○MXaspmx3.googlemail.com2015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

●MXseidevice-com0i.mail.protection.outlook.com2026-03-24 → 2026-04-25 · 3 obs

○ 2026-03-11 10:57:44
● 2026-03-24 08:46:22
● 2026-04-25 09:24:46

○MXseidevice0.mail.protection.outlook.com2026-03-10 → 2026-03-11 · 5 obs

○ 2017-04-10 17:02:46
● 2026-03-10 04:21:56
● 2026-03-11 10:57:44
○ 2026-03-24 08:46:22
○ 2026-04-25 09:24:46

●A12.162.217.1812026-03-10 → 2026-04-25 · 3 obs

○ 2017-04-10 17:02:46
● 2026-03-10 04:21:56
● 2026-04-25 09:24:46

○A216.98.102.1952015-07-19 → 2017-04-10 · 4 obs

● 2015-07-19 11:26:18
● 2017-04-10 17:02:46
○ 2026-03-10 04:21:56
○ 2026-04-25 09:24:46

●A216.98.113.2132026-03-10 → 2026-04-25 · 3 obs

○ 2017-04-10 17:02:46
● 2026-03-10 04:21:56
● 2026-04-25 09:24:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net...	-
sei-device.com	ns2.dyna-ns.net, ns1.dyna-ns.net	-

✅ Authoritative Response

Server:162.159.26.92

NS records: ns2.dyna-ns.net, ns1.dyna-ns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sei-device.com (unsigned zone)

⏱️ Timing

Total: 792ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`12.162.217.181, 216.98.113.213`
NS	2	`ns1.dyna-ns.net, ns2.dyna-ns.net`
MX	1	`seidevice-com0i.mail.protection.outlook.`
TXT	4	`MS=D2A6B0E224B56FBBE92F7F4FC21A459A67661, apple-domain-verification=OwN4AZUmhTQBQ1...`
SOA	1	`ns1.dyna-ns.net hostmaster.sei-device.co`

Analysis

Hierarchy

sei-device.com is a parent of www.sei-device.com.

IP Addresses

sei-device.com points to two IP numbers: 12.162.217.181 and 216.98.113.213.

Other host names, for instance www.sei-device.com, share IP numbers with sei-device.com.

Name Servers

sei-device.com is delegated to two name servers: ns1.dyna-ns.net and ns2.dyna-ns.net.

sei-device.com uses the same name server setup as other domains, including fx2fx.com, mybb.net, headlandsspain.com, cvk.org and kenkaki.com.

sei-device.com shares name servers with other domains, at least partially; for example evbatteriesonline.com and greatestadvertising.com.

These name servers are commonly used alongside ns1.afternic.com and ns2.afternic.com.

Host names with four IPs

ns1.dyna-ns.net points to: 2400:cb00:2049:1::a29f:1a5c, 2400:cb00:2049:1::a29f:1b9e, 162.159.26.92 and 162.159.27.158

ns2.dyna-ns.net points to: 2400:cb00:2049:1::a29f:1805, 2400:cb00:2049:1::a29f:1905, 162.159.24.5 and 162.159.25.5

Mail Servers

The mail server for sei-device.com is seidevice-com0i.mail.protection.outlook.com.

seidevice-com0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::, 2a01:111:f403:c927::1, 2a01:111:f403:f804::1, 2a01:111:f403:f90c::, 52.101.11.15, 52.101.40.4, 52.101.41.21 and 52.101.41.24.

sei-device.com - robtex.com

sei-device.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`sei-device.com`

`com`