`kursus.pro`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:b05^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:83c6^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.5^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.198^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`mark.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b82^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c182^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mark.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2182^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mark.ns.cloudflare.com`
		A	108.162.193.130^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	172.64.33.130^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	173.245.59.130^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
NS	`ruth.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a8f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ruth.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ruth.ns.cloudflare.com`
		A	108.162.192.143^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
		A	172.64.32.143^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
		A	173.245.58.143^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruth.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.11.5, 172.67.131.198
		IPv6 hints	2606:4700:3033::6815:b05, 2606:4700:3035::ac43:83c6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=142, name=cloudflare-ech.com
SOA	`mark.ns.cloudflare.com`dns@cloudflare.com serial=2406741432

`pro`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.pro.afilias-nst.info` ⭐
	NS	`a2.pro.afilias-nst.info`
	NS	`b0.pro.afilias-nst.org`
	NS	`b2.pro.afilias-nst.org`
	NS	`c0.pro.afilias-nst.info`
	NS	`d0.pro.afilias-nst.org`
	SOA	`a0.pro.afilias-nst.info`hostmaster@donuts.email serial=1784156815

Previously MX for

kursus.pro

Same first word

kursus.dk

kursus.de

kursus.gl

kursus.in

kursus.nl

kursus.nu

kursus.pl

kursus.guide

kursus.net

kursus.center

kursus.pro

kursus.ee

kursus.online

kursus.ac.id

kursus.id

kursus.com

kursus.web.id

kursus.co.za

kursus.fr

kursus.ru

kursus.at

Similar names

sukurs.com.pl

kuruss.com

sukurs.net.pl

rukuss.com

ruskus.nl

suksur.de

ruskus.ru

sukurs.com

ruskus.se

sukurs.edu.pl

sukurs.cz

sukurs.org

sukurs.pl

surkus.com

DNS History

20 records (6 active, 14 former)

●NSmark.ns.cloudflare.com2026-06-29 → 2026-07-15 · 3 obs

○ 2026-06-09 05:04:52
● 2026-06-29 03:48:48
● 2026-07-15 23:10:22

○NSns1.beselweb.net2017-11-27 → 2017-11-27 · 4 obs

○ 2017-01-01 03:51:40
● 2017-11-27 07:11:24
○ 2026-05-02 10:51:26
○ 2026-07-15 23:10:22

○NSns1.gratisdns.dk2015-05-28 → 2016-04-08 · 4 obs

● 2015-05-28 02:34:00
● 2016-04-08 16:18:44
○ 2017-01-01 03:51:40
○ 2026-07-15 23:10:22

○NSns1.reg.ru2026-05-09 → 2026-06-09 · 5 obs

○ 2026-05-02 10:51:26
● 2026-05-09 09:58:54
● 2026-06-09 05:04:52
○ 2026-06-29 03:48:48
○ 2026-07-15 23:10:22

○NSns2.beselweb.net2017-11-27 → 2017-11-27 · 4 obs

○ 2017-01-01 03:51:40
● 2017-11-27 07:11:24
○ 2026-05-02 10:51:26
○ 2026-07-15 23:10:22

○NSns2.gratisdns.dk2015-05-28 → 2016-04-08 · 4 obs

● 2015-05-28 02:34:00
● 2016-04-08 16:18:44
○ 2017-01-01 03:51:40
○ 2026-07-15 23:10:22

○NSns2.reg.ru2026-05-09 → 2026-06-09 · 5 obs

○ 2026-05-02 10:51:26
● 2026-05-09 09:58:54
● 2026-06-09 05:04:52
○ 2026-06-29 03:48:48
○ 2026-07-15 23:10:22

○NSns3.gratisdns.dk2015-05-28 → 2016-04-08 · 4 obs

● 2015-05-28 02:34:00
● 2016-04-08 16:18:44
○ 2017-01-01 03:51:40
○ 2026-07-15 23:10:22

○NSns4.gratisdns.dk2015-05-28 → 2016-04-08 · 4 obs

● 2015-05-28 02:34:00
● 2016-04-08 16:18:44
○ 2017-01-01 03:51:40
○ 2026-07-15 23:10:22

○NSns5.gratisdns.dk2015-05-28 → 2016-04-08 · 4 obs

● 2015-05-28 02:34:00
● 2016-04-08 16:18:44
○ 2017-01-01 03:51:40
○ 2026-07-15 23:10:22

●NSruth.ns.cloudflare.com2026-06-29 → 2026-07-15 · 3 obs

○ 2026-06-09 05:04:52
● 2026-06-29 03:48:48
● 2026-07-15 23:10:22

○MXkursus.pro2017-11-27 → 2017-11-27 · 4 obs

○ 2017-01-01 03:51:40
● 2017-11-27 07:11:24
○ 2026-05-02 10:51:26
○ 2026-07-15 23:10:22

○MXmail.kursus.pro2015-05-28 → 2016-04-08 · 4 obs

● 2015-05-28 02:34:00
● 2016-04-08 16:18:44
○ 2017-01-01 03:51:40
○ 2026-07-15 23:10:22

○A103.13.240.952017-11-27 → 2017-11-27 · 4 obs

○ 2017-01-01 03:51:40
● 2017-11-27 07:11:24
○ 2026-05-02 10:51:26
○ 2026-07-15 23:10:22

●A104.21.11.52026-06-29 → 2026-07-15 · 3 obs

○ 2026-06-09 05:04:52
● 2026-06-29 03:48:48
● 2026-07-15 23:10:22

●A172.67.131.1982026-06-29 → 2026-07-15 · 3 obs

○ 2026-06-09 05:04:52
● 2026-06-29 03:48:48
● 2026-07-15 23:10:22

●A2606:4700:3033::6815:b052026-06-29 → 2026-07-15 · 3 obs

○ 2026-06-09 05:04:52
● 2026-06-29 03:48:48
● 2026-07-15 23:10:22

●A2606:4700:3035::ac43:83c62026-06-29 → 2026-07-15 · 3 obs

○ 2026-06-09 05:04:52
● 2026-06-29 03:48:48
● 2026-07-15 23:10:22

○A93.163.240.1742015-05-28 → 2016-04-08 · 4 obs

● 2015-05-28 02:34:00
● 2016-04-08 16:18:44
○ 2017-01-01 03:51:40
○ 2026-07-15 23:10:22

○A95.163.244.1382026-05-09 → 2026-06-09 · 5 obs

○ 2026-05-02 10:51:26
● 2026-05-09 09:58:54
● 2026-06-09 05:04:52
○ 2026-06-29 03:48:48
○ 2026-07-15 23:10:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pro	a0.pro.afilias-nst.info, a2.pro.afilias-nst.info, b0.pro.afilias-nst.org, b2.pro.afilias-nst.org...	-
kursus.pro	mark.ns.cloudflare.com, ruth.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.143

NS records: mark.ns.cloudflare.com, ruth.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kursus.pro (unsigned zone)

⏱️ Timing

Total: 362ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.11.5, 172.67.131.198`
AAAA	2	`2606:4700:3033::6815:b05, 2606:4700:3035::ac43:83c6`
NS	2	`mark.ns.cloudflare.com, ruth.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`mark.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

kursus.pro resolves to four IP addresses: 104.21.11.5, 172.67.131.198, 2606:4700:3033::6815:b05 and 2606:4700:3035::ac43:83c6.

tinyhack.com, 99macan.it.com, suhu777pro.site and two other host names share IP numbers with kursus.pro.

Name Servers

kursus.pro is delegated to two name servers: mark.ns.cloudflare.com and ruth.ns.cloudflare.com.

kursus.pro uses the same name servers as several other domains — among them rasteroids.com, aroel.net, valvedistributors.com.au and two more.

kursus.pro has at least partial name server overlap with other domains, such as 2cbe.com, czwx.net, asktitan.com and two others.

It is common to find these name servers paired with the name servers princess.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

mark.ns.cloudflare.com resolves to 108.162.193.130, 172.64.33.130, 173.245.59.130 and 3 other IP addresses.

ruth.ns.cloudflare.com resolves to 108.162.192.143, 172.64.32.143, 173.245.58.143 and 3 other IP addresses.

kursus.pro - robtex.com

kursus.pro

pro

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`kursus.pro`

`pro`