riverhead.com - robtex.com
riverhead.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 | rcdn-mx-01.cisco.com ⭐ | ||||||
| A | 2001:420:1101:7::48a3:166🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | rcdn-mx-01.cisco.com | ||||||
| A | 72.163.7.166🇺🇸 ASNTTCISCO72.163.7.0/24 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | rcdn-mx-01.cisco.com | ||||||
| MX | aer-mx-01.cisco.com(15) | ||||||
| A | 2001:420:4621::ad26:d496🇳🇱 ASNTTCISCO2001:420:4000::/36 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | aer-mx-01.cisco.com | ||||||
| A | 173.38.212.150🇳🇱 ASNTTCISCO173.38.128.0/17 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | aer-mx-01.cisco.com | ||||||
| MX | alln-mx-01.cisco.com(15) | ||||||
| A | 2001:420:1201:6::ad25:93e6🇺🇸 ASNTTCISCO2001:420:1200::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | alln-mx-01.cisco.com | ||||||
| A | 173.37.147.230🇺🇸 ASNTTCISCO173.37.128.0/19 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | alln-mx-01.cisco.com | ||||||
| SOA | ns1.cisco.compostmaster@cisco.com serial=28 | ||||||
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=1775210592 | ||||||
Same first word
Similar names
DNS History
8 records (6 active, 2 former)
○NSedns-aln1-1-l.cisco.com2015-08-03 → 2016-04-27 · 4 obs
● 2016-04-27 14:35:58
○ 2017-04-02 08:28:30
○ 2026-04-03 10:23:04
○NSedns-rtp5-1-l2017-04-02 → 2017-04-02 · 4 obs
● 2017-04-02 08:28:30
○ 2026-03-03 00:18:08
○ 2026-04-03 10:23:04
●MXaer-mx-01.cisco.com2015-08-03 → 2026-04-03 · 2 obs
● 2026-04-03 10:23:04
●MXalln-mx-01.cisco.com2015-08-03 → 2026-04-03 · 2 obs
● 2026-04-03 10:23:04
●MXrcdn-mx-01.cisco.com2015-08-03 → 2026-04-03 · 2 obs
● 2026-04-03 10:23:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net... | - |
| riverhead.com | ns1.cisco.com, ns2.cisco.com, ns3.cisco.com | 6 records |
✅ Authoritative Response
Server:72.163.5.201
NS records: ns1.cisco.com, ns2.cisco.com, ns3.cisco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for riverhead.com (unsigned zone)
⏱️ Timing
Total: 249ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns3.cisco.com, ns1.cisco.com... |
| MX | 3 | aer-mx-01.cisco.com (pri: 15), rcdn-mx-01.cisco.com (pri: 10)... |
| 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
riverhead.com is delegated to three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
riverhead.com at least partially shares name servers with other domains, including cisco-servicefinder.com, ciscosystems.sr, ciscowebexmeet.uk, ciscosystems.asia and wanwall.com.
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
riverhead.com is handled by three mail servers: aer-mx-01.cisco.com, alln-mx-01.cisco.com and rcdn-mx-01.cisco.com.
The mail servers for riverhead.com are shared with other domains, for instance jumptxt.com, navini.com, mailingcompanion.com, splunk.com and cloupia.com.
These mail servers are often used together with mail1.dynamicsoft.com, ams-mx-01.cisco.com and rtp-mx-01.cisco.com.
Host names with two IP numbers:
aer-mx-01.cisco.com points to: 2001:420:4621::ad26:d496 and 173.38.212.150
alln-mx-01.cisco.com points to: 2001:420:1201:6::ad25:93e6 and 173.37.147.230
rcdn-mx-01.cisco.com points to: 2001:420:1101:7::48a3:166 and 72.163.7.166