structuralengineering.info - dns.ninja

structuralengineering.info

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:12f4🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:b7f3🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.18.244Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.183.243🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSarvind.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2ce3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarvind.ns.cloudflare.com
A2803:f800:50::6ca2:c3e3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRarvind.ns.cloudflare.com
A2a06:98c1:50::ac40:23e3🇺🇸 Cloudflare2a06:98c1:50::/45
PTRarvind.ns.cloudflare.com
A108.162.195.227🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarvind.ns.cloudflare.com
A162.159.44.227Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarvind.ns.cloudflare.com
A172.64.35.227🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarvind.ns.cloudflare.com
NSgail.ns.cloudflare.com
A2606:4700:50::adf5:3a74🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
A2803:f800:50::6ca2:c074🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgail.ns.cloudflare.com
A2a06:98c1:50::ac40:2074🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgail.ns.cloudflare.com
A108.162.192.116🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
A172.64.32.116🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
A173.245.58.116🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.18.244, 172.67.183.243
IPv6 hints2606:4700:3035::6815:12f4, 2606:4700:3037::ac43:b7f3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=85, name=cloudflare-ech.com
SOAarvind.ns.cloudflare.comdns@cloudflare.com serial=2407034476

info

DNSSEC🔒 Signed (DS record present)
NSa0.info.afilias-nst.info ⭐
NSa2.info.afilias-nst.info
NSb0.info.afilias-nst.org ⚠️ Not in parent delegation
NSb2.info.afilias-nst.org ⚠️ Not in parent delegation
NSc0.info.afilias-nst.info
NSd0.info.afilias-nst.org ⚠️ Not in parent delegation
SOAa0.info.afilias-nst.infohostmaster@donuts.email serial=1785792279

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

11 records (6 active, 5 former)

2017201820192020202120222023202420252026NSarvind.ns.cloudflare.comgail.ns.cloudflare.comns1.crowfoot.arvixe.comns2.crowfoot.arvixe.comA104.21.18.244172.67.183.2432606:4700:3035::6815:12f42606:4700:3037::ac43:b7f3143.95.251.452606:4700:3032::6815:12f42606:4700:3035::ac43:b7f3
●NSarvind.ns.cloudflare.com2026-02-17 → 2026-08-03 · 3 obs
○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-08-03 21:59:48
●NSgail.ns.cloudflare.com2026-02-17 → 2026-08-03 · 3 obs
○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-08-03 21:59:48
○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
○ 2026-08-03 21:59:48
○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
○ 2026-08-03 21:59:48
●A104.21.18.2442026-02-17 → 2026-08-03 · 3 obs
○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-08-03 21:59:48
○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
○ 2026-08-03 21:59:48
●A172.67.183.2432026-02-17 → 2026-08-03 · 3 obs
○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-08-03 21:59:48
○A2606:4700:3032::6815:12f42026-02-17 → 2026-06-10 · 5 obs
○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58
○ 2026-07-18 22:06:58
○ 2026-08-03 21:59:48
●A2606:4700:3035::6815:12f42026-07-18 → 2026-08-03 · 3 obs
○ 2026-06-10 04:26:58
● 2026-07-18 22:06:58
● 2026-08-03 21:59:48
○A2606:4700:3035::ac43:b7f32026-02-17 → 2026-06-10 · 5 obs
○ 2017-06-02 16:53:48
● 2026-02-17 18:49:06
● 2026-06-10 04:26:58
○ 2026-07-18 22:06:58
○ 2026-08-03 21:59:48
●A2606:4700:3037::ac43:b7f32026-07-18 → 2026-08-03 · 3 obs
○ 2026-06-10 04:26:58
● 2026-07-18 22:06:58
● 2026-08-03 21:59:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
infoa2.info.afilias-nst.info, c0.info.afilias-nst.info, a0.info.afilias-nst.info-
structuralengineering.infogail.ns.cloudflare.com, arvind.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.44.227

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for structuralengineering.info (unsigned zone)

⏱️ Timing

Total: 319ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.18.244, 172.67.183.243
AAAA22606:4700:3037::ac43:b7f3, 2606:4700:3035::6815:12f4
NS2arvind.ns.cloudflare.com, gail.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1arvind.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

structuralengineering.info points to the four IP addresses 104.21.18.244, 172.67.183.243, 2606:4700:3035::6815:12f4 and 2606:4700:3037::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.

These name servers frequently co-occur with the name servers addilyn.ns.cloudflare.com and zelda.ns.cloudflare.com.

Hosts with 6 IP addresses each:

arvind.ns.cloudflare.com carries IP addresses 108.162.195.227, 162.159.44.227 and 172.64.35.227, with 3 other addresses beyond those.

gail.ns.cloudflare.com carries IP addresses 108.162.192.116, 172.64.32.116 and 173.245.58.116, with 3 other addresses beyond those.