construct.eu - dns.ninja

construct.eu

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:1ec8🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:ad94🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.200Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.173.148🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkara.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a7b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
A2803:f800:50::6ca2:c07b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkara.ns.cloudflare.com
A2a06:98c1:50::ac40:207b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkara.ns.cloudflare.com
A108.162.192.123🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
A172.64.32.123🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
A173.245.58.123🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
NSlars.ns.cloudflare.com
A2606:4700:58::adf5:3bc3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
A2803:f800:50::6ca2:c1c3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlars.ns.cloudflare.com
A2a06:98c1:50::ac40:21c3🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlars.ns.cloudflare.com
A108.162.193.195🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
A172.64.33.195🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
A173.245.59.195🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlars.ns.cloudflare.com
MXmx4.construct.eu ⭐
A84.21.115.43🇨🇿 COMA84.21.96.0/19 Aggregate for CZ-COMA-20040913
PTRcl084021115043.unet.cz
MXmail.comacomp.cz(300)
A2a03:6e80:0:ff02::2🇨🇿 COMA2a03:6e80::/32 Aggregate for CZ-COMA
PTRmail.comacomp.cz
A84.16.96.6🇨🇿 COMA84.16.96.0/19 Aggregate for CZ-COMA-20040714
PTRmail.comacomp.cz
MXmx2.construct.eu(500)
A81.0.254.169🇨🇿 CASABLANCA-AS81.0.254.0/23 Casablanca INT
PTRunassigned-81-0-254-169.casablanca.cz
MXmail.construct.eu(10000)
A84.21.115.46🇨🇿 COMA84.21.96.0/19 Aggregate for CZ-COMA-20040913
PTRmail.construct.cz
TXTv=spf1 ip4:85.163.104.2 ip4:83.167.250.161 ip4:84.16.96.6 ip4:84.21.115.50 ip...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.200, 172.67.173.148
IPv6 hints2606:4700:3034::6815:1ec8, 2606:4700:3037::ac43:ad94
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=31, name=cloudflare-ech.com
SOAkara.ns.cloudflare.comdns@cloudflare.com serial=2406081590

eu

DNSSEC🔒 Signed (DS record present)
NSsi.dns.eu ⭐
NSbe.dns.eu
NSw.dns.eu
NSx.dns.eu
NSy.dns.eu
SOAsi.dns.eutech@eurid.eu serial=1124893899

Subdomains

mail.construct.eu
mx4.construct.eu
mx2.construct.eu
hostmaster.construct.eu

Same first word

construct.one
construct.io
construct.at
construct.com
construct.md
construct.sg
construct.media
construct.com.pk
construct.online
construct.ai
construct.systems
construct.ca
construct.is
construct.studio
construct.pro
construct.readthedocs.io
construct.com.ua
construct.tools
construct.co
construct.tv
construct.me
construct.ie
construct.zone
construct.be
construct.energy
construct.nl
construct.ch
construct.net
construct.eu
construct.company
construct.gr
construct.cz
construct.tech
construct.us
construct.com.au
construct.fr
construct.hu
construct.agency
construct.sk
construct.in
construct.com.sg
construct.today
construct.ro
construct.ddns.net

Similar names

structcon.in
trustconc.com
structcon.com
cscottrun.com
cntrustco.com
structcon.ca
structcon.org
tconstruc.com
structcon.net

DNS History

15 records (10 active, 5 former)

20162017201820192020202120222023202420252026NSkara.ns.cloudflare.comlars.ns.cloudflare.comdns.alm.czjs.alm.czMXmail.comacomp.czmail.construct.eumx2.construct.eumx4.construct.euA104.21.30.200172.67.173.1482606:4700:3034::6815:1ec82606:4700:3037::ac43:ad94109.123.208.43109.123.209.19188.86.113.161
○NSdns.alm.cz2015-06-16 → 2017-02-04 · 4 obs
● 2015-06-16 23:59:08
● 2017-02-04 18:05:24
○ 2026-02-24 01:39:08
○ 2026-06-05 05:37:44
○NSjs.alm.cz2015-06-16 → 2017-02-04 · 4 obs
● 2015-06-16 23:59:08
● 2017-02-04 18:05:24
○ 2026-02-24 01:39:08
○ 2026-06-05 05:37:44
●NSkara.ns.cloudflare.com2026-02-24 → 2026-06-05 · 3 obs
○ 2017-02-04 18:05:24
● 2026-02-24 01:39:08
● 2026-06-05 05:37:44
●NSlars.ns.cloudflare.com2026-02-24 → 2026-06-05 · 3 obs
○ 2017-02-04 18:05:24
● 2026-02-24 01:39:08
● 2026-06-05 05:37:44
●MXmail.comacomp.cz2015-06-16 → 2026-06-05 · 2 obs
● 2015-06-16 23:59:08
● 2026-06-05 05:37:44
●MXmail.construct.eu2015-06-16 → 2026-06-05 · 2 obs
● 2015-06-16 23:59:08
● 2026-06-05 05:37:44
●MXmx2.construct.eu2015-06-16 → 2026-06-05 · 2 obs
● 2015-06-16 23:59:08
● 2026-06-05 05:37:44
●MXmx4.construct.eu2015-06-16 → 2026-06-05 · 2 obs
● 2015-06-16 23:59:08
● 2026-06-05 05:37:44
●A104.21.30.2002026-02-24 → 2026-06-05 · 3 obs
○ 2017-02-04 18:05:24
● 2026-02-24 01:39:08
● 2026-06-05 05:37:44
○A109.123.208.432015-11-13 → 2016-05-02 · 5 obs
○ 2015-06-16 23:59:08
● 2015-11-13 00:06:32
● 2016-05-02 17:32:34
○ 2017-02-04 18:05:24
○ 2026-06-05 05:37:44
○A109.123.209.1912015-06-16 → 2015-06-16 · 3 obs
● 2015-06-16 23:59:08
○ 2015-11-13 00:06:32
○ 2026-06-05 05:37:44
●A172.67.173.1482026-02-24 → 2026-06-05 · 3 obs
○ 2017-02-04 18:05:24
● 2026-02-24 01:39:08
● 2026-06-05 05:37:44
●A2606:4700:3034::6815:1ec82026-02-24 → 2026-06-05 · 3 obs
○ 2017-02-04 18:05:24
● 2026-02-24 01:39:08
● 2026-06-05 05:37:44
●A2606:4700:3037::ac43:ad942026-02-24 → 2026-06-05 · 3 obs
○ 2017-02-04 18:05:24
● 2026-02-24 01:39:08
● 2026-06-05 05:37:44
○A88.86.113.1612017-02-04 → 2017-02-04 · 4 obs
○ 2016-05-02 17:32:34
● 2017-02-04 18:05:24
○ 2026-02-24 01:39:08
○ 2026-06-05 05:37:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
euw.dns.eu, x.dns.eu, y.dns.eu, be.dns.eu...-
construct.eukara.ns.cloudflare.com, lars.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.195

NS records: kara.ns.cloudflare.com, lars.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for construct.eu (unsigned zone)

⏱️ Timing

Total: 1149ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.173.148, 104.21.30.200
AAAA22606:4700:3037::ac43:ad94, 2606:4700:3034::6815:1ec8
NS2kara.ns.cloudflare.com, lars.ns.cloudflare.com
MX4mail.construct.eu (pri: 10000), mail.comacomp.cz (pri: 300)...
TXT1v=spf1 ip4:85.163.104.2 ip4:83.167.250.1
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1kara.ns.cloudflare.com dns.cloudflare.co

Analysis

Hierarchy

construct.eu has four subdomains: mail.construct.eu, mx4.construct.eu, mx2.construct.eu and hostmaster.construct.eu.

IP Addresses

With 4 IP addresses, construct.eu directs to 104.21.30.200, 172.67.173.148, 2606:4700:3034::6815:1ec8 and 2606:4700:3037::ac43:ad94.

Among the host names that share IP numbers with construct.eu are affinity.dating, nbelousova.com, bmzyw.com and two others.

Name Servers

The NS records for construct.eu delegate to kara.ns.cloudflare.com and lars.ns.cloudflare.com.

construct.eu has the same name server delegation as a number of other domains, such as azhuge233.com, inf.org, froize.co.uk and two more.

There is at least partial name server overlap between construct.eu and other domains — yhkejun.com, federiconieto.com, booms.io and two more among them.

These name servers are routinely deployed together with the name servers bonnie.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

kara.ns.cloudflare.com maps to six IP addresses: 108.162.192.123, 172.64.32.123, 173.245.58.123 and three others.

lars.ns.cloudflare.com maps to six IP addresses: 108.162.193.195, 172.64.33.195, 173.245.59.195 and three others.

Mail Servers

construct.eu delegates incoming mail to 4 mail servers: mail.comacomp.cz, mail.construct.eu, mx2.construct.eu and mx4.construct.eu.

construct.eu shares at least some of its mail servers with other domains — for example rsvysocina.cz, btj.cz, dipro-prosec.cz and two more.

These mail servers are routinely found in combination with the mail servers smtpb-in-2.worldonline.cz, mail.dipro-prosec.cz and 93.181.118.234.

Hosts with two IP numbers each:

The A records for mail.comacomp.cz return 84.16.96.6 and 2a03:6e80:0:ff02::2.

Host names with one IP number:

mail.construct.eu resolves to the IP address 84.21.115.46.

mx2.construct.eu resolves to the IP address 81.0.254.169.

mx4.construct.eu resolves to the IP address 84.21.115.43.