us.cisco - robtex.com
us.cisco
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-330.awsdns-41.com ⭐ | ||||||
| A | 2600:9000:5301:4a00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-330.awsdns-41.com | ||||||
| A | 205.251.193.74🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-330.awsdns-41.com | ||||||
| NS | ns-1057.awsdns-04.org | ||||||
| A | 2600:9000:5304:2100::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1057.awsdns-04.org | ||||||
| A | 205.251.196.33🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1057.awsdns-04.org | ||||||
| NS | ns-1615.awsdns-09.co.uk | ||||||
| A | 2600:9000:5306:4f00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1615.awsdns-09.co.uk | ||||||
| A | 205.251.198.79🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1615.awsdns-09.co.uk | ||||||
| NS | ns-783.awsdns-33.net | ||||||
| A | 2600:9000:5303:f00::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-783.awsdns-33.net | ||||||
| A | 205.251.195.15🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-783.awsdns-33.net | ||||||
| TXT | identrust_validate=6mfmI6EkG3wJJ4V1QnClCEd4fd7SDoG61MVQYWdT18D1 | ||||||
| SOA | ns-330.awsdns-41.comawsdns-hostmaster@amazon.com serial=1 | ||||||
cisco
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nic.cisco ⭐ | ||||||
| NS | a.nic.cisco | ||||||
| NS | b.nic.cisco | ||||||
| NS | c.nic.cisco | ||||||
| NS | ns2.dns.nic.cisco | ||||||
| NS | ns3.dns.nic.cisco | ||||||
| SOA | ns1.dns.nic.ciscoadmin@tldns.godaddy serial=1774913824 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns-1057.awsdns-04.org2026-03-31 → 2026-03-31 · 2 obs
● 2026-03-31 23:37:28
●NSns-1615.awsdns-09.co.uk2026-03-31 → 2026-03-31 · 2 obs
● 2026-03-31 23:37:28
●NSns-330.awsdns-41.com2026-03-31 → 2026-03-31 · 2 obs
● 2026-03-31 23:37:28
●NSns-783.awsdns-33.net2026-03-31 → 2026-03-31 · 2 obs
● 2026-03-31 23:37:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cisco | ns3.dns.nic.cisco, ns1.dns.nic.cisco, b.nic.cisco, ns2.dns.nic.cisco... | 12 records |
| us.cisco | ns-1057.awsdns-04.org, ns-783.awsdns-33.net, ns-330.awsdns-41.com, ns-1615.awsdns-09.co.uk | - |
✅ Authoritative Response
Server:205.251.193.74
NS records: ns-1057.awsdns-04.org, ns-783.awsdns-33.net, ns-330.awsdns-41.com, ns-1615.awsdns-09.co.uk
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
DS for us.cisco does not match any DNSKEY
⏱️ Timing
Total: 580ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1057.awsdns-04.org, ns-1615.awsdns-09.co.uk... |
| TXT | 1 | identrust_validate=6mfmI6EkG3wJJ4V1QnClC |
| SOA | 1 | ns-330.awsdns-41.com awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (ns3.dns.nic.cisco, ns3.dns.nic.cisco, ns1.dns.nic.cisco...)
Analysis
Name Servers
us.cisco is delegated to four name servers: ns-330.awsdns-41.com, ns-783.awsdns-33.net, ns-1057.awsdns-04.org and ns-1615.awsdns-09.co.uk.
us.cisco at least partially shares name servers with other domains, for instance d1wla07vmbu2t6.cloudfront.net, darshanaindustries.com, magmic.com, betterme-pilates-exercises.com and flowerbowlflorist.com.
Host names with two IP numbers:
Host name ns-330.awsdns-41.com points to: 2600:9000:5301:4a00::1 and 205.251.193.74.
Host name ns-783.awsdns-33.net points to: 2600:9000:5303:f00::1 and 205.251.195.15.
Host name ns-1057.awsdns-04.org points to: 2600:9000:5304:2100::1 and 205.251.196.33.
Host name ns-1615.awsdns-09.co.uk points to: 2600:9000:5306:4f00::1 and 205.251.198.79.