`kurs-one.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:1d3f^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:9484^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.63^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.132^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`betty.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a4b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c04b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`betty.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:204b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`betty.ns.cloudflare.com`
		A	108.162.192.75^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
		A	172.64.32.75^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
		A	173.245.58.75^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
NS	`luke.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bc8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`luke.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1c8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`luke.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21c8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`luke.ns.cloudflare.com`
		A	108.162.193.200^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`luke.ns.cloudflare.com`
		A	172.64.33.200^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`luke.ns.cloudflare.com`
		A	173.245.59.200^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`luke.ns.cloudflare.com`
MX	`mail.kurs-one.com` ⭐
		A	62.75.159.126
			PTR	`static-ip-62-75-159-126.inaddr.ip-pool.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.29.63, 172.67.148.132
		IPv6 hints	2606:4700:3030::6815:1d3f, 2606:4700:3035::ac43:9484
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=60, name=cloudflare-ech.com
SOA	`betty.ns.cloudflare.com`dns@cloudflare.com serial=2401824834

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778354921

Subdomains

mail.kurs-one.com

Same first word

kurs-one.com

kurs-one.de

Similar names

souken-r.com

norse-uk.myshopify.com

DNS History

15 records (7 active, 8 former)

●NSbetty.ns.cloudflare.com2016-12-14 → 2026-05-09 · 2 obs

● 2016-12-14 12:33:34
● 2026-05-09 19:54:00

●NSluke.ns.cloudflare.com2016-12-14 → 2026-05-09 · 2 obs

● 2016-12-14 12:33:34
● 2026-05-09 19:54:00

●MXmail.kurs-one.com2016-12-14 → 2026-05-09 · 2 obs

● 2016-12-14 12:33:34
● 2026-05-09 19:54:00

●A104.21.29.632026-04-27 → 2026-05-09 · 5 obs

○ 2026-04-24 17:59:30
● 2026-04-27 13:24:44
○ 2026-04-27 19:25:08
● 2026-04-30 23:28:56
● 2026-05-09 19:54:00

○A104.31.88.1472016-12-14 → 2018-07-18 · 4 obs

● 2016-12-14 12:33:34
● 2018-07-18 20:22:50
○ 2026-04-23 18:41:18
○ 2026-05-09 19:54:00

○A104.31.89.1472016-12-14 → 2018-07-18 · 4 obs

● 2016-12-14 12:33:34
● 2018-07-18 20:22:50
○ 2026-04-23 18:41:18
○ 2026-05-09 19:54:00

●A172.67.148.1322026-04-27 → 2026-05-09 · 5 obs

○ 2026-04-24 17:59:30
● 2026-04-27 13:24:44
○ 2026-04-27 19:25:08
● 2026-04-30 23:28:56
● 2026-05-09 19:54:00

○A188.114.96.02026-04-23 → 2026-04-27 · 7 obs

○ 2018-07-18 20:22:50
● 2026-04-23 18:41:18
● 2026-04-24 17:59:30
○ 2026-04-27 13:24:44
● 2026-04-27 19:25:08
○ 2026-04-30 23:28:56
○ 2026-05-09 19:54:00

○A188.114.97.02026-04-23 → 2026-04-27 · 7 obs

○ 2018-07-18 20:22:50
● 2026-04-23 18:41:18
● 2026-04-24 17:59:30
○ 2026-04-27 13:24:44
● 2026-04-27 19:25:08
○ 2026-04-30 23:28:56
○ 2026-05-09 19:54:00

○A2400:cb00:2048:1::681f:58932016-12-14 → 2018-07-18 · 4 obs

● 2016-12-14 12:33:34
● 2018-07-18 20:22:50
○ 2026-04-23 18:41:18
○ 2026-05-09 19:54:00

○A2400:cb00:2048:1::681f:59932016-12-14 → 2018-07-18 · 4 obs

● 2016-12-14 12:33:34
● 2018-07-18 20:22:50
○ 2026-04-23 18:41:18
○ 2026-05-09 19:54:00

●A2606:4700:3030::6815:1d3f2026-04-27 → 2026-05-09 · 5 obs

○ 2026-04-24 17:59:30
● 2026-04-27 13:24:44
○ 2026-04-27 19:25:08
● 2026-04-30 23:28:56
● 2026-05-09 19:54:00

●A2606:4700:3035::ac43:94842026-04-27 → 2026-05-09 · 5 obs

○ 2026-04-24 17:59:30
● 2026-04-27 13:24:44
○ 2026-04-27 19:25:08
● 2026-04-30 23:28:56
● 2026-05-09 19:54:00

○A2a06:98c1:3120::2026-04-23 → 2026-04-27 · 7 obs

○ 2018-07-18 20:22:50
● 2026-04-23 18:41:18
● 2026-04-24 17:59:30
○ 2026-04-27 13:24:44
● 2026-04-27 19:25:08
○ 2026-04-30 23:28:56
○ 2026-05-09 19:54:00

○A2a06:98c1:3121::2026-04-23 → 2026-04-27 · 7 obs

○ 2018-07-18 20:22:50
● 2026-04-23 18:41:18
● 2026-04-24 17:59:30
○ 2026-04-27 13:24:44
● 2026-04-27 19:25:08
○ 2026-04-30 23:28:56
○ 2026-05-09 19:54:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net...	-
kurs-one.com	luke.ns.cloudflare.com, betty.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.75

NS records: luke.ns.cloudflare.com, betty.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kurs-one.com (unsigned zone)

⏱️ Timing

Total: 142ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.29.63, 172.67.148.132`
AAAA	2	`2606:4700:3030::6815:1d3f, 2606:4700:3035::ac43:9484`
NS	2	`betty.ns.cloudflare.com, luke.ns.cloudflare.com`
MX	1	`mail.kurs-one.com (pri: 100)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`betty.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (luke.ns.cloudflare.com, luke.ns.cloudflare.com, luke.ns.cloudflare.com...)

Analysis

Hierarchy

mail.kurs-one.com has kurs-one.com as its parent.

IP Addresses

kurs-one.com maps to four IP numbers: 2606:4700:3030::6815:1d3f, 2606:4700:3035::ac43:9484, 104.21.29.63 and 172.67.148.132.

Other host names, for instance duslersatosu.com, easyrabbit.net, www.iaap-summit.org, templateguru.co and duoketuan.net share IP numbers with kurs-one.com.

Name Servers

Two name servers betty.ns.cloudflare.com and luke.ns.cloudflare.com are delegated to kurs-one.com.

kurs-one.com uses the same name server configuration as other domains, such as kurs-manager.com, aqua-fitness.club, roammiz.com, sportvnarod.com and unwater.net.

kurs-one.com at least partially shares name servers with other domains such as appsct.com, cctvmadrid.es, avacia.com.mx, womenofthestorm.com and meta-for-business-help-advertisement.pages.dev.

These name servers are commonly used with piotr.ns.cloudflare.com and kate.ns.cloudflare.com.

Host names with six IP numbers: Host name betty.ns.cloudflare.com points to 2606:4700:50::adf5:3a4b, 2803:f800:50::6ca2:c04b, 2a06:98c1:50::ac40:204b, 108.162.192.75, 172.64.32.75 and 173.245.58.75; host name luke.ns.cloudflare.com points to 2606:4700:58::adf5:3bc8, 2803:f800:50::6ca2:c1c8, 2a06:98c1:50::ac40:21c8, 108.162.193.200, 172.64.33.200 and 173.245.59.200.

Mail Servers

kurs-one.com is handled by a single mail server, mail.kurs-one.com.

mail.kurs-one.com points to one IP number: 62.75.159.126.

kurs-one.com - robtex.com

kurs-one.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`kurs-one.com`

`com`