cogentco.it - robtex.com
cogentco.it
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.100.128.10🇩🇪 COGENT38.0.0.0/8 Cogent | ||||||
| PTR | cogentco.com | ||||||
| NS | auth1.dns.cogentco.com ⭐ | ||||||
| A | 2001:550:1:a::d🇺🇸 COGENT2001:550::/32 Cogent Communications | ||||||
| PTR | auth1.dns.cogentco.com | ||||||
| A | 66.28.0.14🇺🇸 COGENT66.28.0.0/16 Cogent | ||||||
| PTR | auth1.dns.cogentco.com | ||||||
| NS | auth2.dns.cogentco.com | ||||||
| A | 2001:550:1:b::d🇺🇸 COGENT2001:550::/32 Cogent Communications | ||||||
| PTR | auth2.dns.cogentco.com | ||||||
| A | 66.28.0.30🇺🇸 COGENT66.28.0.0/16 Cogent | ||||||
| PTR | auth2.dns.cogentco.com | ||||||
| SOA | auth1.dns.cogentco.comdns@cogentco.com 2012-02-14 #1 | ||||||
it
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.it ⭐ | ||||||
| NS | a.dns.it | ||||||
| NS | m.dns.it | ||||||
| NS | nameserver.cnr.it | ||||||
| NS | r.dns.it | ||||||
| NS | v.dns.it | ||||||
| SOA | dns.nic.ithostmaster@nic.it 2026-08-01 #19 | ||||||
Same first word
Similar names
cognecto.com |
cognotec.co.uk |
ocecontg.com |
goconect.com |
cognotec.com |
cognotec.cl |
congotec.com |
conectgo.net |
gocontec.com |
DNS History
5 records (3 active, 2 former)
●NSauth1.dns.cogentco.com2015-06-15 → 2026-08-01 · 2 obs
● 2026-08-01 17:22:00
●NSauth2.dns.cogentco.com2015-06-15 → 2026-08-01 · 2 obs
● 2026-08-01 17:22:00
○NSauth4.dns.cogentco.com2015-06-15 → 2016-06-18 · 4 obs
● 2016-06-18 16:36:14
○ 2026-04-03 07:27:16
○ 2026-08-01 17:22:00
○NSauth5.dns.cogentco.com2015-06-15 → 2016-06-18 · 4 obs
● 2016-06-18 16:36:14
○ 2026-04-03 07:27:16
○ 2026-08-01 17:22:00
●A38.100.128.102015-06-15 → 2026-08-01 · 2 obs
● 2026-08-01 17:22:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| it | a.dns.it, m.dns.it, r.dns.it, v.dns.it... | 12 records |
| cogentco.it | auth2.dns.cogentco.com, auth1.dns.cogentco.com | - |
✅ Authoritative Response
Server:66.28.0.14
NS records: auth2.dns.cogentco.com, auth1.dns.cogentco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cogentco.it (unsigned zone)
⏱️ Timing
Total: 761ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.100.128.10 |
| NS | 2 | auth2.dns.cogentco.com, auth1.dns.cogentco.com |
| SOA | 1 | auth1.dns.cogentco.com dns.cogentco.com |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.dns.it, a.dns.it, m.dns.it...)
Analysis
IP Addresses
cogentco.it directs to one IP number, which is 38.100.128.10.
Among the host names that share IP numbers with cogentco.it are fibernet.net, internetsupercarrier.org, cogentco.in and two others.
Name Servers
Two name servers handle the delegation for cogentco.it: auth1.dns.cogentco.com and auth2.dns.cogentco.com.
cogentco.it has the same name server delegation as a number of other domains, such as 74.38.in-addr.arpa, 63.54.154.in-addr.arpa, anet.cogentco.com and two more.
At least some of cogentco.it's name servers are shared with other domains, for example 213.138.192.in-addr.arpa, 119.149.in-addr.arpa, prix-europa.de and two more.
These name servers tend to co-occur with ns1.vodafone-ip.de, ns2.vodafone-ip.de, ext-ns1.columbia.edu and 3 other name servers in the same DNS delegations.
auth1.dns.cogentco.com and auth2.dns.cogentco.com both carry two IP addresses. The A records for auth1.dns.cogentco.com are 66.28.0.14 and 2001:550:1:a::d; the A records for auth2.dns.cogentco.com are 66.28.0.30 and 2001:550:1:b::d.