fsharp.us - dns.ninja
fsharp.us
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1-04.azure-dns.com ⭐ | ||||||
| A | 2603:1061:0:700::4🇺🇸 Microsoft2603:1000::/25 MICROSOFT | ||||||
| PTR | ns1-04.azure-dns.com | ||||||
| A | 13.107.236.4🇺🇸 Microsoft13.104.0.0/14 MICROSOFT | ||||||
| PTR | ns1-04.azure-dns.com | ||||||
| NS | ns2-04.azure-dns.net | ||||||
| A | 2620:1ec:8ec:700::4🇺🇸 Microsoft2620:1ec::/36 MICROSOFT | ||||||
| PTR | ns2-04.azure-dns.net | ||||||
| A | 150.171.21.4🇺🇸 Microsoft150.171.0.0/16 MICROSOFT | ||||||
| PTR | ns2-04.azure-dns.net | ||||||
| NS | ns3-04.azure-dns.org | ||||||
| A | 2a01:111:4000:700::4🇬🇧 Microsoft2a01:111:4000::/36 | ||||||
| PTR | ns3-04.azure-dns.org | ||||||
| A | 204.14.183.4🇺🇸 Microsoft204.14.180.0/22 | ||||||
| PTR | ns3-04.azure-dns.org | ||||||
| NS | ns4-04.azure-dns.info | ||||||
| A | 2620:1ec:bda:700::4🇺🇸 Microsoft2620:1ec::/36 MICROSOFT | ||||||
| PTR | ns4-04.azure-dns.info | ||||||
| A | 208.84.5.4🇺🇸 Microsoft208.84.0.0/21 MICROSOFT | ||||||
| PTR | ns4-04.azure-dns.info | ||||||
| TXT | v=DMARC1; p=reject; pct=100; rua=mailto:d@rua.agari.com; ruf=mailto:d@ruf.aga... | ||||||
| SOA | ns1-04.azure-dns.comazuredns-hostmaster@microsoft.com serial=1 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1782864698 | ||||||
Same first word
fsharp.in |
fsharp.dev |
fsharp.it |
fsharp.us |
fsharp.com |
fsharp.org |
fsharp.co |
fsharp.at |
fsharp.github.io |
fsharp.ru |
fsharp.net |
Similar names
DNS History
6 records (4 active, 2 former)
●NSns1-04.azure-dns.com2026-02-28 → 2026-07-01 · 2 obs
● 2026-07-01 00:28:18
●NSns2-04.azure-dns.net2026-02-28 → 2026-07-01 · 2 obs
● 2026-07-01 00:28:18
●NSns3-04.azure-dns.org2026-02-28 → 2026-07-01 · 2 obs
● 2026-07-01 00:28:18
●NSns4-04.azure-dns.info2026-02-28 → 2026-07-01 · 2 obs
● 2026-07-01 00:28:18
○A64.4.6.2332015-05-01 → 2016-09-13 · 4 obs
● 2016-09-13 01:47:04
○ 2026-02-28 11:48:18
○ 2026-07-01 00:28:18
○A65.55.39.122015-05-01 → 2016-09-13 · 4 obs
● 2016-09-13 01:47:04
○ 2026-02-28 11:48:18
○ 2026-07-01 00:28:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | m.cctld.us, w.cctld.us, y.cctld.us, f.cctld.us... | - |
| fsharp.us | ns2-04.azure-dns.net, ns4-04.azure-dns.info, ns1-04.azure-dns.com, ns3-04.azure-dns.org | - |
✅ Authoritative Response
Server:204.14.183.4
NS records: ns2-04.azure-dns.net, ns4-04.azure-dns.info, ns1-04.azure-dns.com, ns3-04.azure-dns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fsharp.us (unsigned zone)
⏱️ Timing
Total: 667ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1-04.azure-dns.com, ns2-04.azure-dns.net... |
| TXT | 1 | v=DMARC1; p=reject; pct=100; rua=mailto: |
| SOA | 1 | ns1-04.azure-dns.com azuredns-hostmaster |
Analysis
Name Servers
The NS records for fsharp.us point to four name servers: ns1-04.azure-dns.com, ns4-04.azure-dns.info, ns2-04.azure-dns.net and ns3-04.azure-dns.org.
There is at least partial name server overlap between fsharp.us and other domains — tpaworkflow.net, skypesweden.net, fraslemobility.com and two more among them.
All four hostnames — ns1-04.azure-dns.com, ns4-04.azure-dns.info, ns2-04.azure-dns.net and ns3-04.azure-dns.org — resolve to two IP numbers apiece: ns1-04.azure-dns.com to 13.107.236.4 and 2603:1061:0:700::4; ns4-04.azure-dns.info to 208.84.5.4 and 2620:1ec:bda:700::4; ns2-04.azure-dns.net to 150.171.21.4 and 2620:1ec:8ec:700::4; ns3-04.azure-dns.org to 204.14.183.4 and 2a01:111:4000:700::4.