engineering-specification.net - robtex.com
engineering-specification.net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3035::6815:25be🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:d46c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.37.190Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.212.108🇺🇸 Cloudflare172.67.208.0/20 , 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 | 104.21.37.190, 172.67.212.108 | ||||||
| IPv6 hints | 2606:4700:3035::6815:25be, 2606:4700:3035::ac43:d46c | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=17, name=cloudflare-ech.com | ||||||
| SOA | ns1.ubmdns.comdns@cloudflare.com serial=2409118556 | ||||||
net
| 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=1784176662 | ||||||
Same first word
engineering-specification.org |
engineering-specification.co.uk |
engineering-specification.net |
engineering-specification.com |
DNS History
6 records (6 active, 0 former)
●NSns1.ubmdns.com2026-07-13 → 2026-07-16 · 2 obs
● 2026-07-16 04:49:56
●NSns2.ubmdns.com2026-07-13 → 2026-07-16 · 2 obs
● 2026-07-16 04:49:56
●A104.21.37.1902026-07-13 → 2026-07-16 · 2 obs
● 2026-07-16 04:49:56
●A172.67.212.1082026-07-13 → 2026-07-16 · 2 obs
● 2026-07-16 04:49:56
●A2606:4700:3035::6815:25be2026-07-13 → 2026-07-16 · 2 obs
● 2026-07-16 04:49:56
●A2606:4700:3035::ac43:d46c2026-07-13 → 2026-07-16 · 2 obs
● 2026-07-16 04:49:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | d.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net... | - |
| engineering-specification.net | ns1.ubmdns.com, ns2.ubmdns.com | - |
✅ 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: 403ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.212.108, 104.21.37.190 |
| AAAA | 2 | 2606:4700:3035::6815:25be, 2606:4700:3035::ac43:d46c |
| 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 |
Analysis
IP Addresses
engineering-specification.net points to the four IP addresses 104.21.37.190, 172.67.212.108, 2606:4700:3035::6815:25be and 2606:4700:3035::ac43:d46c.
filtrosgrum.com.br, sugarlavanda.run, armstrongchile.com and two other host names share IP numbers with engineering-specification.net.
Name Servers
engineering-specification.net has two authoritative name servers — ns1.ubmdns.com and ns2.ubmdns.com.
engineering-specification.net uses the same name servers as several other domains — among them oshexpomexico.com, reitwatch.co.uk, theoutdoorlivinghall.com and two more.
Both ns1.ubmdns.com and ns2.ubmdns.com have two IP addresses each. ns1.ubmdns.com resolves to 162.159.0.208 and 2400:cb00:2049:1::a29f:d0; ns2.ubmdns.com resolves to 162.159.1.208 and 2400:cb00:2049:1::a29f:1d0.