engineering-zone.com - robtex.com
engineering-zone.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:4cc7🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:c82f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.76.199Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.200.47🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ns1.ubmdns.com ⭐ | ||||||
| A | 2400:cb00:2049:1::a29f:d0🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| PTR | ns1.ubmdns.com | ||||||
| A | 162.159.0.208Cloudflare162.159.0.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.ubmdns.com | ||||||
| A | 2400:cb00:2049:1::a29f:1d0🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| PTR | ns2.ubmdns.com | ||||||
| A | 162.159.1.208Cloudflare162.159.1.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.ubmdns.com | ||||||
| TXT | v=spf1 mx include:spf.ubm-us.net -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.76.199, 172.67.200.47 | ||||||
| IPv6 hints | 2606:4700:3031::6815:4cc7, 2606:4700:3035::ac43:c82f | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com | ||||||
| SOA | ns1.ubmdns.comdns@cloudflare.com serial=2409159282 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784666997 | ||||||
Same first word
engineering-zone.com |
DNS History
6 records (6 active, 0 former)
●NSns1.ubmdns.com2026-07-13 → 2026-07-21 · 2 obs
● 2026-07-21 20:54:08
●NSns2.ubmdns.com2026-07-13 → 2026-07-21 · 2 obs
● 2026-07-21 20:54:08
●A104.21.76.1992026-07-13 → 2026-07-21 · 2 obs
● 2026-07-21 20:54:08
●A172.67.200.472026-07-13 → 2026-07-21 · 2 obs
● 2026-07-21 20:54:08
●A2606:4700:3031::6815:4cc72026-07-13 → 2026-07-21 · 2 obs
● 2026-07-21 20:54:08
●A2606:4700:3035::ac43:c82f2026-07-13 → 2026-07-21 · 2 obs
● 2026-07-21 20:54:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| engineering-zone.com | ns1.ubmdns.com, ns2.ubmdns.com | 2 records |
✅ Authoritative Response
Server:162.159.0.208
NS records: ns1.ubmdns.com, ns2.ubmdns.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 173ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.200.47, 104.21.76.199 |
| AAAA | 2 | 2606:4700:3035::ac43:c82f, 2606:4700:3031::6815:4cc7 |
| NS | 2 | ns1.ubmdns.com, ns2.ubmdns.com |
| TXT | 1 | v=spf1 mx include:spf.ubm-us.net -all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ns1.ubmdns.com dns.cloudflare.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.ubmdns.com, ns2.ubmdns.com)
Analysis
IP Addresses
engineering-zone.com resolves to four IP addresses: 104.21.76.199, 172.67.200.47, 2606:4700:3031::6815:4cc7 and 2606:4700:3035::ac43:c82f.
Additional host names — by.svc-1.archinect.com, img174.archinect.com, gameviewstudios.com and two others — share IP numbers with engineering-zone.com.
Name Servers
engineering-zone.com uses two name servers for its delegation: ns1.ubmdns.com and ns2.ubmdns.com.
engineering-zone.com shares its name server setup with other domains, including liveexperienceexpo.com, biomedevicesanjose.com, medtecsea.com and two others.
The two host names ns1.ubmdns.com and ns2.ubmdns.com each have a pair of IP addresses: ns1.ubmdns.com has 162.159.0.208 and 2400:cb00:2049:1::a29f:d0, and ns2.ubmdns.com has 162.159.1.208 and 2400:cb00:2049:1::a29f:1d0.