seminar-go.com - robtex.com
seminar-go.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:420:1101:1::b🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | redirect.cisco.com | ||||||
| A | 72.163.4.154🇺🇸 ASNTTCISCO72.163.4.0/24 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| 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 | ||||||
| SOA | ns1.cisco.compostmaster@cisco.com serial=4 | ||||||
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.netnstld@verisign-grs.com serial=1775938992 | ||||||
Same first word
seminar-go.com |
seminar-go.net |
seminar-go.org |
Similar names
DNS History
8 records (5 active, 3 former)
○NSedns-aln1-1-l2015-05-23 → 2016-11-27 · 6 obs
○ 2015-10-29 17:08:52
○ 2016-04-07 07:13:14
● 2016-11-27 03:30:10
○ 2017-08-27 13:37:22
○ 2026-04-11 20:31:06
○NSedns-aln1-1-l.cisco.com2015-05-23 → 2016-04-07 · 4 obs
● 2016-04-07 07:13:14
○ 2016-11-27 03:30:10
○ 2026-04-11 20:31:06
○NSedns-rtp5-1-l2017-08-27 → 2017-08-27 · 4 obs
● 2017-08-27 13:37:22
○ 2026-03-31 13:40:24
○ 2026-04-11 20:31:06
●A2001:420:1101:1::b2015-05-23 → 2026-04-11 · 2 obs
● 2026-04-11 20:31:06
●A72.163.4.1542015-05-23 → 2026-04-11 · 2 obs
● 2026-04-11 20:31:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net... | - |
| seminar-go.com | ns1.cisco.com, ns2.cisco.com, ns3.cisco.com | 6 records |
✅ Authoritative Response
Server:64.102.255.44
NS records: ns1.cisco.com, ns2.cisco.com, ns3.cisco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for seminar-go.com (unsigned zone)
⏱️ Timing
Total: 153ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 72.163.4.154 |
| AAAA | 1 | 2001:420:1101:1::b |
| NS | 3 | ns3.cisco.com, ns1.cisco.com... |
| 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
IP Addresses
seminar-go.com points to two IP numbers: 2001:420:1101:1::b and 72.163.4.154.
Other host names, for instance ciscosystems.ud.it, coreoptics.de, compatible.com, ciscosystems.pz.it and cisco.fg.it share IP numbers with seminar-go.com.
Name Servers
seminar-go.com is delegated to three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
seminar-go.com at least partially shares its name servers with other domains, for instance myciscocommunity.com, ciscohumannetwork.net, ciscolela.mobi, ciscoplus.eu and ciscosp360pavilion.info.
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.