engineering-specification.org - dns.ninja

`engineering-specification.org`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3031::ac43:c785^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:44e9^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.68.233^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.199.133^{🇺🇸 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	104.21.68.233, 172.67.199.133
		IPv6 hints	2606:4700:3031::ac43:c785, 2606:4700:3034::6815:44e9
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=251, name=cloudflare-ech.com
SOA	`ns1.ubmdns.com`dns@cloudflare.com serial=2411192150

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1786590491

Same first word

engineering-specification.net

engineering-specification.com

engineering-specification.org

engineering-specification.co.uk

DNS History

13 records (6 active, 7 former)

●NSns1.ubmdns.com2018-12-01 → 2026-08-13 · 2 obs

● 2018-12-01 02:08:24
● 2026-08-13 03:41:06

●NSns2.ubmdns.com2018-12-01 → 2026-08-13 · 2 obs

● 2018-12-01 02:08:24
● 2026-08-13 03:41:06

○MXmail1.ubm-us.net2018-12-01 → 2018-12-01 · 3 obs

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-08-13 03:41:06

●A104.21.68.2332026-03-23 → 2026-08-13 · 3 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-08-13 03:41:06

○A104.24.114.1092018-12-01 → 2018-12-01 · 3 obs

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-08-13 03:41:06

○A104.24.115.1092018-12-01 → 2018-12-01 · 3 obs

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-08-13 03:41:06

●A172.67.199.1332026-03-23 → 2026-08-13 · 3 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-08-13 03:41:06

○A2606:4700:30::6818:726d2018-12-01 → 2018-12-01 · 3 obs

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-08-13 03:41:06

○A2606:4700:30::6818:736d2018-12-01 → 2018-12-01 · 3 obs

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-08-13 03:41:06

●A2606:4700:3031::ac43:c7852026-07-13 → 2026-08-13 · 3 obs

○ 2026-06-12 21:34:42
● 2026-07-13 11:17:04
● 2026-08-13 03:41:06

●A2606:4700:3034::6815:44e92026-07-13 → 2026-08-13 · 3 obs

○ 2026-06-12 21:34:42
● 2026-07-13 11:17:04
● 2026-08-13 03:41:06

○A2606:4700:3035::6815:44e92026-03-23 → 2026-06-12 · 5 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-06-12 21:34:42
○ 2026-07-13 11:17:04
○ 2026-08-13 03:41:06

○A2606:4700:3037::ac43:c7852026-03-23 → 2026-06-12 · 5 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-06-12 21:34:42
○ 2026-07-13 11:17:04
○ 2026-08-13 03:41:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
engineering-specification.org	ns1.ubmdns.com, ns2.ubmdns.com	-

✅ Authoritative Response

Server:162.159.1.208

NS records: ns1.ubmdns.com, ns2.ubmdns.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 297ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.199.133, 104.21.68.233`
AAAA	2	`2606:4700:3031::ac43:c785, 2606:4700:3034::6815:44e9`
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.org directs to four IP numbers, which are 104.21.68.233, 172.67.199.133, 2606:4700:3031::ac43:c785 and 2606:4700:3034::6815:44e9.

livioloi.com, mail.kingscourtestatewinery.ca, liga123hoki1.com and two other host names share IP numbers with engineering-specification.org.

Name Servers

DNS delegation for engineering-specification.org points to two name servers: ns1.ubmdns.com and ns2.ubmdns.com.

engineering-specification.org uses the same name servers as several other domains — among them engineersatplay.com, gamedeveloper.mobi, informationweek.com.mx and two more.

engineering-specification.org has partial name server overlap with other domains, including contentmarketingworld.com.

ns1.ubmdns.com directs to 162.159.0.208 and 2400:cb00:2049:1::a29f:d0. ns2.ubmdns.com directs to 162.159.1.208 and 2400:cb00:2049:1::a29f:1d0. Each host name carries two IP addresses.