core.microsoft - robtex.com
core.microsoft
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1-33.azure-dns.com ⭐ | ||||||
| A | 2603:1061:0:10::21🇺🇸 Microsoft2603:1000::/25 MICROSOFT | ||||||
| PTR | ns1-33.azure-dns.com | ||||||
| A | 150.171.10.33🇺🇸 Microsoft150.171.0.0/16 MICROSOFT | ||||||
| PTR | ns1-33.azure-dns.com | ||||||
| NS | ns2-33.azure-dns.net | ||||||
| A | 2620:1ec:8ec:10::21🇺🇸 Microsoft2620:1ec::/36 MICROSOFT | ||||||
| PTR | ns2-33.azure-dns.net | ||||||
| A | 150.171.16.33🇺🇸 Microsoft150.171.0.0/16 MICROSOFT | ||||||
| PTR | ns2-33.azure-dns.net | ||||||
| NS | ns3-33.azure-dns.org | ||||||
| A | 2a01:111:4000:10::21🇬🇧 Microsoft2a01:111:4000::/36 | ||||||
| PTR | ns3-33.azure-dns.org | ||||||
| A | 13.107.222.33🇺🇸 Microsoft13.104.0.0/14 MICROSOFT | ||||||
| PTR | ns3-33.azure-dns.org | ||||||
| NS | ns4-33.azure-dns.info | ||||||
| A | 2620:1ec:bda:10::21🇺🇸 Microsoft2620:1ec::/36 MICROSOFT | ||||||
| PTR | ns4-33.azure-dns.info | ||||||
| A | 13.107.206.33🇺🇸 Microsoft13.104.0.0/14 MICROSOFT | ||||||
| PTR | ns4-33.azure-dns.info | ||||||
| TXT | MS=ms76478040 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1-33.azure-dns.comazuredns-hostmaster@microsoft.com serial=1 | ||||||
microsoft
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns1.nic.microsoft ⭐ | ||||||
| NS | dns2.nic.microsoft | ||||||
| NS | dns3.nic.microsoft | ||||||
| NS | dns4.nic.microsoft | ||||||
| NS | dnsa.nic.microsoft | ||||||
| NS | dnsb.nic.microsoft | ||||||
| NS | dnsc.nic.microsoft | ||||||
| NS | dnsd.nic.microsoft | ||||||
| SOA | dns1.nic.microsofthostmaster@nominet.org.uk serial=1784218839 | ||||||
🔒 HSTS Preload (+subdomains)
Subdomains
rdx.core.microsoft |
localizationfileservice.core.microsoft |
cch.core.microsoft |
aligntool.core.microsoft |
pptwrs.core.microsoft |
cspv2.core.microsoft |
lcs.core.microsoft |
tripsidna.core.microsoft |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1-33.azure-dns.com2026-02-18 → 2026-07-23 · 2 obs
● 2026-07-23 21:08:24
●NSns2-33.azure-dns.net2026-02-18 → 2026-07-23 · 2 obs
● 2026-07-23 21:08:24
●NSns3-33.azure-dns.org2026-02-18 → 2026-07-23 · 2 obs
● 2026-07-23 21:08:24
●NSns4-33.azure-dns.info2026-02-18 → 2026-07-23 · 2 obs
● 2026-07-23 21:08:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| microsoft | dns1.nic.microsoft, dnsa.nic.microsoft, dns2.nic.microsoft, dnsd.nic.microsoft... | 14 records |
| core.microsoft | ns1-33.azure-dns.com, ns2-33.azure-dns.net, ns3-33.azure-dns.org, ns4-33.azure-dns.info | - |
✅ Authoritative Response
Server:150.171.16.33
NS records: ns1-33.azure-dns.com, ns2-33.azure-dns.net, ns3-33.azure-dns.org, ns4-33.azure-dns.info
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 293ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1-33.azure-dns.com, ns2-33.azure-dns.net... |
| TXT | 2 | MS=ms76478040, v=spf1 -all |
| SOA | 1 | ns1-33.azure-dns.com azuredns-hostmaster |
📌 Glue Records Collected
Total: 14
In-bailiwick: 14 (dnsd.nic.microsoft, dnsc.nic.microsoft, dnsb.nic.microsoft...)
Analysis
Hierarchy
core.microsoft serves as parent to rdx.core.microsoft, localizationfileservice.core.microsoft, cch.core.microsoft, aligntool.core.microsoft, pptwrs.core.microsoft along with a few other host names.
Name Servers
core.microsoft has four authoritative name servers: ns1-33.azure-dns.com, ns4-33.azure-dns.info, ns2-33.azure-dns.net and ns3-33.azure-dns.org.
core.microsoft has at least partial name server overlap with other domains, such as jjit.com.au, iqtbs.com, odanettverk.org and two others.
ns1-33.azure-dns.com, ns4-33.azure-dns.info, ns2-33.azure-dns.net and ns3-33.azure-dns.org all point to exactly two IP numbers each: ns1-33.azure-dns.com → 150.171.10.33 and 2603:1061:0:10::21; ns4-33.azure-dns.info → 13.107.206.33 and 2620:1ec:bda:10::21; ns2-33.azure-dns.net → 150.171.16.33 and 2620:1ec:8ec:10::21; ns3-33.azure-dns.org → 13.107.222.33 and 2a01:111:4000:10::21.