securityresponse.us - dns.ninja

`securityresponse.us`

DNSSEC	⚠️ Not signed
NS	`lvn-exdns-1.broadcom.net` ⭐
		A	192.19.228.245^{🇺🇸 AS19637192.19.228.0/24 Broadcom Limited 7365 LINDELL RD, Las Vegas, NV 89139,}
			PTR	`lvn-exdns-1.broadcom.net`
NS	`edns161.ultradns.biz`
		A	2610:a1:1015::2a1^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`edns161.ultradns.biz`
		A	204.74.67.161^{🇺🇸 MAINT-ID-12008204.74.67.0/24 Neustar}
			PTR	`edns161.ultradns.biz`
NS	`edns161.ultradns.com`
		A	2001:502:f3ff::2a1^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`edns161.ultradns.com`
		A	204.74.66.161^{🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar}
			PTR	`edns161.ultradns.com`
NS	`edns161.ultradns.net`
		A	2610:a1:1014::2a1^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`edns161.ultradns.net`
		A	204.74.110.161^{🇺🇸 MAINT-ID-12008204.74.110.0/24 Neustar}
			PTR	`edns161.ultradns.net`
NS	`edns161.ultradns.org`
		A	2001:502:4612::2a1^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`edns161.ultradns.org`
		A	204.74.111.161^{🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar}
			PTR	`edns161.ultradns.org`
MX	`tus1smtinbpex01.symantec.com` ⭐
		A	155.64.16.63^{🇺🇸 AS16733155.64.16.0/23 SYMC Ashburn US}
		A	155.64.49.83^{🇺🇸 ENETWORKS128.0.0.0/2}
MX	`tus1smtinbpex02.symantec.com` ⭐
		A	155.64.16.63^{🇺🇸 AS16733155.64.16.0/23 SYMC Ashburn US}
		A	155.64.49.83^{🇺🇸 ENETWORKS128.0.0.0/2}
MX	`tus1smtinbpex03.symantec.com` ⭐
		A	155.64.16.63^{🇺🇸 AS16733155.64.16.0/23 SYMC Ashburn US}
		A	155.64.49.83^{🇺🇸 ENETWORKS128.0.0.0/2}
TXT	`v=spf1 ip4:216.10.194.28 ip4:216.10.194.135 ip4:202.75.191.8 ip4:216.10.195.2...`
SOA	`lvn-exdns-1.broadcom.net`domains\@admin.broadcom.com serial=105

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1782054869

Same first word

securityresponse.com.au

securityresponse.us

securityresponse.info

securityresponse.org

DNS History

23 records (8 active, 15 former)

●NSedns161.ultradns.biz2026-04-06 → 2026-06-21 · 3 obs

○ 2017-03-03 16:07:56
● 2026-04-06 09:45:50
● 2026-06-21 15:58:30

●NSedns161.ultradns.com2026-04-06 → 2026-06-21 · 3 obs

○ 2017-03-03 16:07:56
● 2026-04-06 09:45:50
● 2026-06-21 15:58:30

●NSedns161.ultradns.net2026-04-06 → 2026-06-21 · 3 obs

○ 2017-03-03 16:07:56
● 2026-04-06 09:45:50
● 2026-06-21 15:58:30

●NSedns161.ultradns.org2026-04-06 → 2026-06-21 · 3 obs

○ 2017-03-03 16:07:56
● 2026-04-06 09:45:50
● 2026-06-21 15:58:30

●NSlvn-exdns-1.broadcom.net2026-04-06 → 2026-06-21 · 3 obs

○ 2017-03-03 16:07:56
● 2026-04-06 09:45:50
● 2026-06-21 15:58:30

○NSpdns1.ultradns.net2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○NSpdns2.ultradns.net2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○NSpdns3.ultradns.org2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○NSpdns4.ultradns.org2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○NSpdns5.ultradns.info2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○NSpdns6.ultradns.co.uk2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○NSudns1.ultradns.net2017-01-11 → 2017-03-03 · 5 obs

○ 2016-03-07 20:46:52
● 2017-01-11 04:41:44
● 2017-03-03 16:07:56
○ 2026-04-06 09:45:50
○ 2026-06-21 15:58:30

○NSudns2.ultradns.net2017-01-11 → 2017-03-03 · 5 obs

○ 2016-03-07 20:46:52
● 2017-01-11 04:41:44
● 2017-03-03 16:07:56
○ 2026-04-06 09:45:50
○ 2026-06-21 15:58:30

○MXexcu-mxib-1.symantec.com2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○MXextu-mxib-1.symantec.com2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○MXextu-mxib-2.symantec.com2015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

●MXtus1smtinbpex01.symantec.com2017-01-11 → 2026-06-21 · 3 obs

○ 2016-03-07 20:46:52
● 2017-01-11 04:41:44
● 2026-06-21 15:58:30

●MXtus1smtinbpex02.symantec.com2017-01-11 → 2026-06-21 · 3 obs

○ 2016-03-07 20:46:52
● 2017-01-11 04:41:44
● 2026-06-21 15:58:30

●MXtus1smtinbpex03.symantec.com2017-01-11 → 2026-06-21 · 3 obs

○ 2016-03-07 20:46:52
● 2017-01-11 04:41:44
● 2026-06-21 15:58:30

○A155.64.16.512017-01-11 → 2017-03-03 · 5 obs

○ 2016-03-07 20:46:52
● 2017-01-11 04:41:44
● 2017-03-03 16:07:56
○ 2026-04-06 09:45:50
○ 2026-06-21 15:58:30

○A155.64.49.542017-01-11 → 2017-03-03 · 5 obs

○ 2016-03-07 20:46:52
● 2017-01-11 04:41:44
● 2017-03-03 16:07:56
○ 2026-04-06 09:45:50
○ 2026-06-21 15:58:30

○A206.204.52.312015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

○A216.12.145.202015-08-15 → 2016-03-07 · 4 obs

● 2015-08-15 19:12:48
● 2016-03-07 20:46:52
○ 2017-01-11 04:41:44
○ 2026-06-21 15:58:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	n.cctld.us, y.cctld.us, x.cctld.us, m.cctld.us...	-
securityresponse.us	edns161.ultradns.biz, edns161.ultradns.net, edns161.ultradns.com, edns161.ultradns.org	-

✅ Authoritative Response

Server:204.74.66.161

NS records: edns161.ultradns.biz, edns161.ultradns.net, edns161.ultradns.com, edns161.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for securityresponse.us (unsigned zone)

⏱️ Timing

Total: 953ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`edns161.ultradns.biz, edns161.ultradns.com...`
MX	3	`tus1smtinbpex01.symantec.com (pri: 10), tus1smtinbpex02.symantec.com (pri: 10)...`
TXT	1	`v=spf1 ip4:216.10.194.28 ip4:216.10.194.`
SOA	1	`lvn-exdns-1.broadcom.net domains\.admin.`

Analysis

Name Servers

securityresponse.us has five name servers, which are edns161.ultradns.biz, edns161.ultradns.com, lvn-exdns-1.broadcom.net and two others.

securityresponse.us shares at least some of its name servers with other domains, including learningplatform.vmware.com, protected.world, emulex.com.au and two others.

These name servers are frequently seen alongside the name servers edns161.ultradns.net, edns161.ultradns.org, ns96.ultradns2.com and ns96.ultradns2.org.

Hostnames that resolve to two IP addresses:

edns161.ultradns.biz resolves to two addresses: 204.74.67.161 and 2610:a1:1015::2a1.

edns161.ultradns.com resolves to two addresses: 204.74.66.161 and 2001:502:f3ff::2a1.

edns161.ultradns.net resolves to two addresses: 204.74.110.161 and 2610:a1:1014::2a1.

edns161.ultradns.org resolves to two addresses: 204.74.111.161 and 2001:502:4612::2a1.

Hosts with just one IP address:

The hostname lvn-exdns-1.broadcom.net resolves to 192.19.228.245.

Mail Servers

securityresponse.us is handled by three mail servers: tus1smtinbpex01.symantec.com, tus1smtinbpex02.symantec.com and tus1smtinbpex03.symantec.com.

securityresponse.us has at least partial mail server overlap with other domains such as altiris.at, threatexpert.co.uk, imdetector.com and two more.

This set of mail servers commonly appears together with the mail servers excu-mxib-1.symantec.com.

tus1smtinbpex01.symantec.com, tus1smtinbpex02.symantec.com and tus1smtinbpex03.symantec.com all point to the same two IP addresses — 155.64.16.63 and 155.64.49.83.

The host names tus1smtinbpex01.symantec.com, tus1smtinbpex02.symantec.com and tus1smtinbpex03.symantec.com each resolve to 155.64.16.63.

The host names tus1smtinbpex01.symantec.com, tus1smtinbpex02.symantec.com and tus1smtinbpex03.symantec.com each resolve to 155.64.49.83.