`engineering-specification.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:44e9^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:c785^{🇺🇸 Cloudflare2606:4700:3037::/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	104.21.68.233, 172.67.199.133
		IPv6	2606:4700:3035::6815:44e9, 2606:4700:3037::ac43:c785
SOA	`ns1.ubmdns.com`dns@cloudflare.com serial=2398750533

`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=1774668125

Same first word

engineering-specification.org

DNS History

11 records (6 active, 5 former)

●NSns1.ubmdns.com2018-12-01 → 2026-03-28 · 2 obs

● 2018-12-01 02:08:24
● 2026-03-28 03:47:10

●NSns2.ubmdns.com2018-12-01 → 2026-03-28 · 2 obs

● 2018-12-01 02:08:24
● 2026-03-28 03:47:10

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

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-03-28 03:47:10

●A104.21.68.2332026-03-23 → 2026-03-28 · 3 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-03-28 03:47:10

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

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-03-28 03:47:10

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

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-03-28 03:47:10

●A172.67.199.1332026-03-23 → 2026-03-28 · 3 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-03-28 03:47:10

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

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-03-28 03:47:10

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

● 2018-12-01 02:08:24
○ 2026-03-23 23:43:36
○ 2026-03-28 03:47:10

●A2606:4700:3035::6815:44e92026-03-23 → 2026-03-28 · 3 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-03-28 03:47:10

●A2606:4700:3037::ac43:c7852026-03-23 → 2026-03-28 · 3 obs

○ 2018-12-01 02:08:24
● 2026-03-23 23:43:36
● 2026-03-28 03:47:10

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:162.159.1.208

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1182ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.68.233, 172.67.199.133`
AAAA	2	`2606:4700:3037::ac43:c785, 2606:4700:3035::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 refers to four IP numbers: 2606:4700:3035::6815:44e9, 2606:4700:3037::ac43:c785, 104.21.68.233 and 172.67.199.133.

Other host names, for instance livioloi.com, liga123hoki1.com, alqimah.co, czjtsg.com and simapan.org share IP numbers with engineering-specification.org.

Name Servers

engineering-specification.org's delegation uses two name servers: ns1.ubmdns.com and ns2.ubmdns.com.

engineering-specification.org uses the same name server setup as other domains, such as engineersatplay.com, electronicssm.com, shopthefloor.com, autodesignline.com and fi-allergenfree.com.

engineering-specification.org shares name servers with other domains at least partially, for example contentmarketingworld.com and ubmlive.com.

Host names with two IPs:

ns1.ubmdns.com points to 2400:cb00:2049:1::a29f:d0 and 162.159.0.208

ns2.ubmdns.com points to 2400:cb00:2049:1::a29f:1d0 and 162.159.1.208

engineering-specification.org - robtex.com