microsoft365en.365office.workers.dev - robtex.com
microsoft365en.365office.workers.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::ac43:d7fa🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:5b70🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.91.112Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.215.250🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.91.112, 172.67.215.250 | ||||||
| IPv6 hints | 2606:4700:3032::ac43:d7fa, 2606:4700:3036::6815:5b70 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=228, name=cloudflare-ech.com | ||||||
365office.workers.dev
| DNSSEC | ⚠️ Not signed | ||||||
| NS | luke.ns.cloudflare.com ⭐ | ||||||
| NS | marissa.ns.cloudflare.com | ||||||
| SOA | luke.ns.cloudflare.comdns@cloudflare.com serial=2402416693 | ||||||
DNS History
4 records (4 active, 0 former)
●A104.21.91.1122026-04-12 → 2026-05-11 · 2 obs
● 2026-04-12 20:31:26
● 2026-05-11 13:18:32
● 2026-05-11 13:18:32
●A172.67.215.2502026-04-12 → 2026-05-11 · 2 obs
● 2026-04-12 20:31:26
● 2026-05-11 13:18:32
● 2026-05-11 13:18:32
●A2606:4700:3032::ac43:d7fa2026-04-12 → 2026-05-11 · 2 obs
● 2026-04-12 20:31:26
● 2026-05-11 13:18:32
● 2026-05-11 13:18:32
●A2606:4700:3036::6815:5b702026-04-12 → 2026-05-11 · 2 obs
● 2026-04-12 20:31:26
● 2026-05-11 13:18:32
● 2026-05-11 13:18:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com... | - |
| workers.dev | sofia.ns.cloudflare.com, clyde.ns.cloudflare.com | - |
| 365office.workers.dev | luke.ns.cloudflare.com, marissa.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.200
NS records: luke.ns.cloudflare.com, marissa.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for workers.dev (unsigned zone)
⏱️ Timing
Total: 426ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.91.112, 172.67.215.250 |
| AAAA | 2 | 2606:4700:3032::ac43:d7fa, 2606:4700:3036::6815:5b70 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
IP Addresses
microsoft365en.365office.workers.dev maps to four IP numbers: 2606:4700:3032::ac43:d7fa, 2606:4700:3036::6815:5b70, 104.21.91.112 and 172.67.215.250.
Other host names, for instance this(0x78766964656f73).com, fiction-addiction.com, anti-bc.net, www.digitalbrain.com and www.991dj.com share IP numbers with microsoft365en.365office.workers.dev.