`sourcefireinc.com`

DNSSEC	⚠️ Not signed
NS	`ns1.cisco.com` ⭐
		A	2001:420:1101:6::a^{🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns1.cisco.com`
		A	72.163.5.201^{🇺🇸 ASNTTCISCO72.163.0.0/18 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns1.cisco.com`
NS	`ns2.cisco.com`
		A	2001:420:2041:5000::a^{🇺🇸 ASNTTCISCO2001:420:2000::/35 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns2.cisco.com`
		A	64.102.255.44^{🇺🇸 ASNTTCISCO64.102.0.0/16 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns2.cisco.com`
NS	`ns3.cisco.com`
		A	2001:420:1201:7::a^{🇺🇸 ASNTTCISCO2001:420:1200::/41 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns3.cisco.com`
		A	173.37.146.41^{🇺🇸 ASNTTCISCO173.37.128.0/19 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns3.cisco.com`
MX	`sourcefireinc.com.s9a1.psmtp.com` ⭐
MX	`sourcefireinc.com.s9a2.psmtp.com`⁽²⁰⁾
MX	`sourcefireinc.com.s9b1.psmtp.com`⁽³⁰⁾
MX	`sourcefireinc.com.s9b2.psmtp.com`⁽⁴⁰⁾
SOA	`ns1.cisco.com`postmaster@cisco.com serial=15

`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=1778415661

Same first word

sourcefireinc.net

sourcefireinc.com

DNS History

9 records (7 active, 2 former)

○NSedns-aln1-1-l.cisco.com2015-06-01 → 2016-04-28 · 4 obs

● 2015-06-01 13:34:38
● 2016-04-28 09:58:26
○ 2017-03-15 12:00:36
○ 2026-05-10 12:29:54

○NSedns-rtp5-1-l2017-03-15 → 2017-03-15 · 4 obs

○ 2016-04-28 09:58:26
● 2017-03-15 12:00:36
○ 2019-12-26 14:58:34
○ 2026-05-10 12:29:54

●NSns1.cisco.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 13:34:38
● 2026-05-10 12:29:54

●NSns2.cisco.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 13:34:38
● 2026-05-10 12:29:54

●NSns3.cisco.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 13:34:38
● 2026-05-10 12:29:54

●MXsourcefireinc.com.s9a1.psmtp.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 13:34:38
● 2026-05-10 12:29:54

●MXsourcefireinc.com.s9a2.psmtp.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 13:34:38
● 2026-05-10 12:29:54

●MXsourcefireinc.com.s9b1.psmtp.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 13:34:38
● 2026-05-10 12:29:54

●MXsourcefireinc.com.s9b2.psmtp.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 13:34:38
● 2026-05-10 12:29:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net...	-
sourcefireinc.com	ns1.cisco.com, ns2.cisco.com, ns3.cisco.com	6 records

✅ Authoritative Response

Server:173.37.146.41

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sourcefireinc.com (unsigned zone)

⏱️ Timing

Total: 277ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`ns1.cisco.com, ns2.cisco.com...`
MX	4	`sourcefireinc.com.s9a1.psmtp.com (pri: 1, sourcefireinc.com.s9a2.psmtp.com (pri: 2...`
SOA	1	`ns1.cisco.com postmaster.cisco.com`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.cisco.com, ns1.cisco.com, ns2.cisco.com...)

Analysis

Name Servers

sourcefireinc.com is delegated to three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.

sourcefireinc.com at least partially shares name servers with other domains, for example 240.135.192.in-addr.arpa, ciscoasr.biz, datacentreethernet.info, synata.org and myciscomedia.org.

Host names with two IP numbers:

ns1.cisco.com points to 2001:420:1101:6::a and 72.163.5.201

ns2.cisco.com points to 2001:420:2041:5000::a and 64.102.255.44

ns3.cisco.com points to 2001:420:1201:7::a and 173.37.146.41

Mail Servers

sourcefireinc.com is served by four mail servers: sourcefireinc.com.s9a1.psmtp.com, sourcefireinc.com.s9a2.psmtp.com, sourcefireinc.com.s9b1.psmtp.com and sourcefireinc.com.s9b2.psmtp.com.

sourcefireinc.com - robtex.com