util02.sjc01.opsource.net - robtex.com
util02.sjc01.opsource.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:4a5b🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:c910🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.74.91Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.201.16🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.74.91, 172.67.201.16 | ||||||
| IPv6 hints | 2606:4700:3032::6815:4a5b, 2606:4700:3035::ac43:c910 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=106, name=cloudflare-ech.com | ||||||
sjc01.opsource.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:4a5b🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:c910🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.74.91Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.201.16🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.74.91, 172.67.201.16 | ||||||
| IPv6 hints | 2606:4700:3032::6815:4a5b, 2606:4700:3035::ac43:c910 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=93, name=cloudflare-ech.com | ||||||
Previously NS for
DNS History
6 records (4 active, 2 former)
○MXmail.opsource.net2015-08-17 → 2017-08-29 · 4 obs
● 2015-08-17 03:11:20
● 2017-08-29 19:30:34
○ 2026-04-24 05:27:30
○ 2026-04-24 05:27:32
● 2017-08-29 19:30:34
○ 2026-04-24 05:27:30
○ 2026-04-24 05:27:32
●A104.21.74.912026-04-24 → 2026-04-24 · 3 obs
○ 2017-08-29 19:30:34
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
●A172.67.201.162026-04-24 → 2026-04-24 · 3 obs
○ 2017-08-29 19:30:34
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
○A207.140.47.1672015-08-17 → 2017-08-29 · 4 obs
● 2015-08-17 03:11:20
● 2017-08-29 19:30:34
○ 2026-04-24 05:27:30
○ 2026-04-24 05:27:32
● 2017-08-29 19:30:34
○ 2026-04-24 05:27:30
○ 2026-04-24 05:27:32
●A2606:4700:3032::6815:4a5b2026-04-24 → 2026-04-24 · 3 obs
○ 2017-08-29 19:30:34
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
●A2606:4700:3035::ac43:c9102026-04-24 → 2026-04-24 · 3 obs
○ 2017-08-29 19:30:34
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
● 2026-04-24 05:27:30
● 2026-04-24 05:27:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net... | - |
| opsource.net | frank.ns.cloudflare.com, tess.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.166
NS records: frank.ns.cloudflare.com, tess.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opsource.net (unsigned zone)
⏱️ Timing
Total: 864ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.201.16, 104.21.74.91 |
| AAAA | 2 | 2606:4700:3032::6815:4a5b, 2606:4700:3035::ac43:c910 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
IP Addresses
util02.sjc01.opsource.net points to four IP numbers: 2606:4700:3032::6815:4a5b, 2606:4700:3035::ac43:c910, 104.21.74.91 and 172.67.201.16.
Other host names, for instance jav123hd.com, www.isca.kz, www.construction-jobsearch.com, it-cloud.opsource.net and insidesaintjoseph.org share IP numbers with util02.sjc01.opsource.net.