structuralengineering.info - dns.ninja

`structuralengineering.info`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:12f4^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:b7f3^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.244^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.183.243^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arvind.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2ce3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3e3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arvind.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23e3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arvind.ns.cloudflare.com`
		A	108.162.195.227^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
		A	162.159.44.227^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
		A	172.64.35.227^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
NS	`gail.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a74^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c074^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gail.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2074^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gail.ns.cloudflare.com`
		A	108.162.192.116^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
		A	172.64.32.116^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
		A	173.245.58.116^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gail.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.18.244, 172.67.183.243
		IPv6 hints	2606:4700:3032::6815:12f4, 2606:4700:3035::ac43:b7f3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=151, name=cloudflare-ech.com
SOA	`arvind.ns.cloudflare.com`dns@cloudflare.com serial=2403895847

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1781063977

Same first word

structuralengineering.de

structuralengineering.com

structuralengineering.ca

structuralengineering.org

structuralengineering.in

structuralengineering.co.uk

structuralengineering.expert

structuralengineering.info

structuralengineering.ir

Similar names

engineeringstructural.com

DNS History

9 records (6 active, 3 former)

●NSarvind.ns.cloudflare.com2026-02-17 → 2026-06-10 · 3 obs

○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58

●NSgail.ns.cloudflare.com2026-02-17 → 2026-06-10 · 3 obs

○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58

○NSns1.crowfoot.arvixe.com2016-03-30 → 2017-06-02 · 4 obs

● 2016-03-30 15:34:08
● 2017-06-02 16:53:48
○ 2026-02-17 18:49:06
○ 2026-06-10 04:26:58

○NSns2.crowfoot.arvixe.com2016-03-30 → 2017-06-02 · 4 obs

● 2016-03-30 15:34:08
● 2017-06-02 16:53:48
○ 2026-02-17 18:49:06
○ 2026-06-10 04:26:58

●A104.21.18.2442026-02-17 → 2026-06-10 · 3 obs

○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58

○A143.95.251.452016-03-30 → 2017-06-02 · 4 obs

● 2016-03-30 15:34:08
● 2017-06-02 16:53:48
○ 2026-02-17 18:49:06
○ 2026-06-10 04:26:58

●A172.67.183.2432026-02-17 → 2026-06-10 · 3 obs

○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58

●A2606:4700:3032::6815:12f42026-02-17 → 2026-06-10 · 3 obs

○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58

●A2606:4700:3035::ac43:b7f32026-02-17 → 2026-06-10 · 3 obs

○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info	-
structuralengineering.info	arvind.ns.cloudflare.com, gail.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.116

NS records: arvind.ns.cloudflare.com, gail.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for structuralengineering.info (unsigned zone)

⏱️ Timing

Total: 2103ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.183.243, 104.21.18.244`
AAAA	2	`2606:4700:3035::ac43:b7f3, 2606:4700:3032::6815:12f4`
NS	2	`arvind.ns.cloudflare.com, gail.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`arvind.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

structuralengineering.info points to 4 IP addresses — 104.21.18.244, 172.67.183.243, 2606:4700:3032::6815:12f4 and 2606:4700:3035::ac43:b7f3.

classgroup.info, culturales.iga.edu, merlinsignageinternational.com plus two other host names have IP numbers in common with structuralengineering.info.

Name Servers

structuralengineering.info is served by two delegated name servers, arvind.ns.cloudflare.com and gail.ns.cloudflare.com.

The name server configuration of structuralengineering.info is shared with other domains, for instance geosearchengine.com, cqoogle.com, pmanonline.net and two others.

There is at least partial name server overlap between structuralengineering.info and other domains — cy2.xyz, brooklinearena.com, srinair.com and two more among them.

The name servers zelda.ns.cloudflare.com, meadow.ns.cloudflare.com and rick.ns.cloudflare.com are often found in combination with these name servers.

Hosts with 6 IP addresses each:

arvind.ns.cloudflare.com maps to six IP addresses: 108.162.195.227, 162.159.44.227, 172.64.35.227 and three others.

gail.ns.cloudflare.com maps to six IP addresses: 108.162.192.116, 172.64.32.116, 173.245.58.116 and three others.