`engineering-specification.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:55a5^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:cfa6^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.85.165^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.207.166^{🇺🇸 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	162.159.0.208^{Cloudflare162.159.0.0/24 , 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	162.159.1.208^{Cloudflare162.159.1.0/24 , 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	104.21.85.165, 172.67.207.166
		IPv6 hints	2606:4700:3035::6815:55a5, 2606:4700:3036::ac43:cfa6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=4, name=cloudflare-ech.com
SOA	`ns1.ubmdns.com`dns@cloudflare.com serial=2409118536

`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.net`nstld@verisign-grs.com serial=1784184572

Same first word

engineering-specification.org

engineering-specification.co.uk

engineering-specification.net

engineering-specification.com

DNS History

11 records (6 active, 5 former)

●NSns1.ubmdns.com2018-07-27 → 2026-07-16 · 2 obs

● 2018-07-27 16:29:44
● 2026-07-16 07:19:04

●NSns2.ubmdns.com2018-07-27 → 2026-07-16 · 2 obs

● 2018-07-27 16:29:44
● 2026-07-16 07:19:04

○MXmail1.ubm-us.net2018-07-27 → 2018-07-27 · 3 obs

● 2018-07-27 16:29:44
○ 2026-07-13 11:14:28
○ 2026-07-16 07:19:04

●A104.21.85.1652026-07-13 → 2026-07-16 · 3 obs

○ 2018-07-27 16:29:44
● 2026-07-13 11:14:28
● 2026-07-16 07:19:04

○A104.27.164.752018-07-27 → 2018-07-27 · 3 obs

● 2018-07-27 16:29:44
○ 2026-07-13 11:14:28
○ 2026-07-16 07:19:04

○A104.27.165.752018-07-27 → 2018-07-27 · 3 obs

● 2018-07-27 16:29:44
○ 2026-07-13 11:14:28
○ 2026-07-16 07:19:04

●A172.67.207.1662026-07-13 → 2026-07-16 · 3 obs

○ 2018-07-27 16:29:44
● 2026-07-13 11:14:28
● 2026-07-16 07:19:04

○A2400:cb00:2048:1::681b:a44b2018-07-27 → 2018-07-27 · 3 obs

● 2018-07-27 16:29:44
○ 2026-07-13 11:14:28
○ 2026-07-16 07:19:04

○A2400:cb00:2048:1::681b:a54b2018-07-27 → 2018-07-27 · 3 obs

● 2018-07-27 16:29:44
○ 2026-07-13 11:14:28
○ 2026-07-16 07:19:04

●A2606:4700:3035::6815:55a52026-07-13 → 2026-07-16 · 3 obs

○ 2018-07-27 16:29:44
● 2026-07-13 11:14:28
● 2026-07-16 07:19:04

●A2606:4700:3036::ac43:cfa62026-07-13 → 2026-07-16 · 3 obs

○ 2018-07-27 16:29:44
● 2026-07-13 11:14:28
● 2026-07-16 07:19:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
engineering-specification.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: 922ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.85.165, 172.67.207.166`
AAAA	2	`2606:4700:3036::ac43:cfa6, 2606:4700:3035::6815:55a5`
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-specification.com has four IP addresses: 104.21.85.165, 172.67.207.166, 2606:4700:3035::6815:55a5 and 2606:4700:3036::ac43:cfa6.

Among the host names that share IP numbers with engineering-specification.com are yzhmyzs.com, 438s.com, more-erp.com and two others.

Name Servers

engineering-specification.com uses two name servers for its delegation: ns1.ubmdns.com and ns2.ubmdns.com.

engineering-specification.com has the same name server delegation as a number of other domains, such as spaandresortexpony.com, securex2006.com, seeyouthere.club and two more.

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.

engineering-specification.com - robtex.com