`construsoft.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:989b^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:1f3^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.243^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.152.155^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sandy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3adb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0db^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sandy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20db^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sandy.ns.cloudflare.com`
		A	108.162.192.219^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	172.64.32.219^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	173.245.58.219^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
NS	`tanner.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c61^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c361^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tanner.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2361^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tanner.ns.cloudflare.com`
		A	108.162.195.97^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
		A	162.159.44.97^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
		A	172.64.35.97^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tanner.ns.cloudflare.com`
MX	`construsoft-cz.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::b^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::c^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00304.inbound.protection.outlook.com`
		A	52.101.68.5^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du2pr03cu00105.inbound.protection.outlook.com`
		A	52.101.68.39^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00607.inbound.protection.outlook.com`
		A	52.101.73.28^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00204.inbound.protection.outlook.com`
		A	52.101.73.30^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00306.inbound.protection.outlook.com`
TXT	`MS=ms55132600`
TXT	`d365mktkey=tiJJerA49gxlQE8GWeqbAkyfGECXfS2POX7TRw0yVC8x`
TXT	`google-site-verification=sfnjOS4sOBByhdc_036MSU61bgMEh-W3TH2kEf2K-Y0`
TXT	`v=spf1 include:spf.protection.outlook.com include:marketing.dynamics.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.1.243, 172.67.152.155
		IPv6	2606:4700:3030::ac43:989b, 2606:4700:3033::6815:1f3
SOA	`sandy.ns.cloudflare.com`dns@cloudflare.com serial=2396404797

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1774621038

Same first word

construsoft.nl

construsoft.pt

construsoft.hu

construsoft.cz

construsoft.mx

construsoft.gr

construsoft.org

construsoft.net

construsoft.com

construsoft.be

construsoft.ro

construsoft.pl

construsoft.eu

construsoft.biz

construsoft.at

construsoft.es

DNS History

17 records (7 active, 10 former)

○NSalfa.ns.active24.cz2015-07-26 → 2019-01-02 · 4 obs

● 2015-07-26 06:30:00
● 2019-01-02 19:04:38
○ 2026-03-26 03:11:30
○ 2026-03-27 14:55:14

○NSbeta.ns.active24.cz2015-07-26 → 2019-01-02 · 4 obs

● 2015-07-26 06:30:00
● 2019-01-02 19:04:38
○ 2026-03-26 03:11:30
○ 2026-03-27 14:55:14

○NSgama.ns.active24.sk2015-07-26 → 2019-01-02 · 4 obs

● 2015-07-26 06:30:00
● 2019-01-02 19:04:38
○ 2026-03-26 03:11:30
○ 2026-03-27 14:55:14

○NSns.dns4.cz2015-07-26 → 2019-01-02 · 4 obs

● 2015-07-26 06:30:00
● 2019-01-02 19:04:38
○ 2026-03-26 03:11:30
○ 2026-03-27 14:55:14

●NSsandy.ns.cloudflare.com2026-03-26 → 2026-03-27 · 3 obs

○ 2019-01-02 19:04:38
● 2026-03-26 03:11:30
● 2026-03-27 14:55:14

●NStanner.ns.cloudflare.com2026-03-26 → 2026-03-27 · 3 obs

○ 2019-01-02 19:04:38
● 2026-03-26 03:11:30
● 2026-03-27 14:55:14

●MXconstrusoft-cz.mail.protection.outlook.com2026-03-26 → 2026-03-27 · 3 obs

○ 2019-01-02 19:04:38
● 2026-03-26 03:11:30
● 2026-03-27 14:55:14

○MXin.smtp.cz2015-07-26 → 2016-06-21 · 4 obs

● 2015-07-26 06:30:00
● 2016-06-21 04:15:28
○ 2017-02-16 23:39:54
○ 2026-03-27 14:55:14

○MXmx.smtp.cz2015-07-26 → 2016-06-21 · 4 obs

● 2015-07-26 06:30:00
● 2016-06-21 04:15:28
○ 2017-02-16 23:39:54
○ 2026-03-27 14:55:14

○MXmx1.active24.com2017-02-16 → 2019-01-02 · 5 obs

○ 2016-06-21 04:15:28
● 2017-02-16 23:39:54
● 2019-01-02 19:04:38
○ 2026-03-26 03:11:30
○ 2026-03-27 14:55:14

○MXmx2.active24.com2017-02-16 → 2019-01-02 · 5 obs

○ 2016-06-21 04:15:28
● 2017-02-16 23:39:54
● 2019-01-02 19:04:38
○ 2026-03-26 03:11:30
○ 2026-03-27 14:55:14

●A104.21.1.2432026-03-26 → 2026-03-27 · 3 obs

○ 2019-01-02 19:04:38
● 2026-03-26 03:11:30
● 2026-03-27 14:55:14

●A172.67.152.1552026-03-26 → 2026-03-27 · 3 obs

○ 2019-01-02 19:04:38
● 2026-03-26 03:11:30
● 2026-03-27 14:55:14

●A2606:4700:3030::ac43:989b2026-03-26 → 2026-03-27 · 3 obs

○ 2019-01-02 19:04:38
● 2026-03-26 03:11:30
● 2026-03-27 14:55:14

●A2606:4700:3033::6815:1f32026-03-26 → 2026-03-27 · 3 obs

○ 2019-01-02 19:04:38
● 2026-03-26 03:11:30
● 2026-03-27 14:55:14

○A2a02:4a8:ac24:102::96:662015-07-26 → 2017-02-16 · 4 obs

● 2015-07-26 06:30:00
● 2017-02-16 23:39:54
○ 2019-01-02 19:04:38
○ 2026-03-27 14:55:14

○A83.96.146.2402015-07-26 → 2019-01-02 · 4 obs

● 2015-07-26 06:30:00
● 2019-01-02 19:04:38
○ 2026-03-26 03:11:30
○ 2026-03-27 14:55:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz	-
construsoft.cz	sandy.ns.cloudflare.com, tanner.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.97

NS records: sandy.ns.cloudflare.com, tanner.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for construsoft.cz (unsigned zone)

⏱️ Timing

Total: 835ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.243, 172.67.152.155`
AAAA	2	`2606:4700:3033::6815:1f3, 2606:4700:3030::ac43:989b`
NS	2	`sandy.ns.cloudflare.com, tanner.ns.cloudflare.com`
MX	1	`construsoft-cz.mail.protection.outlook.c`
TXT	4	`MS=ms55132600, d365mktkey=tiJJerA49gxlQE8GWeqbAkyfGECXf...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sandy.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

construsoft.cz points to four IP numbers: 2606:4700:3030::ac43:989b, 2606:4700:3033::6815:1f3, 104.21.1.243 and 172.67.152.155.

Other host names, for instance birdsallandlaughlin.com, diamondgames.com, baixar-facebook-gratis.com, activehealthrehab.com and realestateforlife.org share IP numbers with construsoft.cz.

Name Servers

construsoft.cz is delegated to two name servers: sandy.ns.cloudflare.com and tanner.ns.cloudflare.com.

construsoft.cz uses the same name server setup as other domains, for instance medyabayilik.com, construsoft.pl, thecowboychannel.com, yonlendiriliyorsunuz.org and construsoft.nl.

construsoft.cz shares name servers with other domains at least partially, for instance betterloanchoice.com, hedeyao.com, rison.me, gfg9c1e2.com and app.com.pk.

these name servers are commonly used together with jerry.ns.cloudflare.com and arely.ns.cloudflare.com.

Host names with six IP numbers: sandy.ns.cloudflare.com points to 2606:4700:50::adf5:3adb, 2803:f800:50::6ca2:c0db, 2a06:98c1:50::ac40:20db, 108.162.192.219, 172.64.32.219 and 173.245.58.219; tanner.ns.cloudflare.com points to 2606:4700:58::a29f:2c61, 2803:f800:50::6ca2:c361, 2a06:98c1:50::ac40:2361, 108.162.195.97, 162.159.44.97 and 172.64.35.97.

Mail Servers

The mail server for construsoft.cz is construsoft-cz.mail.protection.outlook.com.

Host construsoft-cz.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::, 2a01:111:f403:ca09::6, 2a01:111:f403:ca09::b, 2a01:111:f403:ca09::c, 52.101.68.5, 52.101.68.39, 52.101.73.28 and 52.101.73.30.

construsoft.cz - robtex.com

construsoft.cz

cz

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`construsoft.cz`

`cz`