cursosnr.com - robtex.com

cursosnr.com

DNSSEC⚠️ Not signed
A2606:4700:3036::ac43:a36b🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:4ada🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.74.218Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.163.107🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjohnny.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2cba🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjohnny.ns.cloudflare.com
A2803:f800:50::6ca2:c3ba🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjohnny.ns.cloudflare.com
A2a06:98c1:50::ac40:23ba🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjohnny.ns.cloudflare.com
A108.162.195.186🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A162.159.44.186Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.35.186🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSvenus.ns.cloudflare.com
A2606:4700:50::adf5:3aeb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenus.ns.cloudflare.com
A2803:f800:50::6ca2:c0eb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvenus.ns.cloudflare.com
A2a06:98c1:50::ac40:20eb🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvenus.ns.cloudflare.com
A108.162.192.235🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenus.ns.cloudflare.com
A172.64.32.235🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenus.ns.cloudflare.com
A173.245.58.235🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvenus.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.74.218, 172.67.163.107
IPv6 hints2606:4700:3036::ac43:a36b, 2606:4700:3037::6815:4ada
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=94, name=cloudflare-ech.com
SOAjohnny.ns.cloudflare.comdns@cloudflare.com serial=2409367701

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785169497

Same first word

cursosnr.com

Similar names

rncursos.com.br
nrcursos.com.br
crossrun.de
crossrun.com
crossurn.com
runcross.com
crossrun.hu

DNS History

8 records (6 active, 2 former)

NSjohnny.ns.cloudflare.comvenus.ns.cloudflare.comA104.21.74.218172.67.163.1072606:4700:3036::ac43:a36b2606:4700:3037::6815:4ada2606:4700:3031::ac43:a36b2606:4700:3035::6815:4ada
●NSjohnny.ns.cloudflare.com2026-05-15 → 2026-07-27 · 2 obs
● 2026-05-15 11:09:36
● 2026-07-27 16:41:36
●NSvenus.ns.cloudflare.com2026-05-15 → 2026-07-27 · 2 obs
● 2026-05-15 11:09:36
● 2026-07-27 16:41:36
●A104.21.74.2182026-05-15 → 2026-07-27 · 2 obs
● 2026-05-15 11:09:36
● 2026-07-27 16:41:36
●A172.67.163.1072026-05-15 → 2026-07-27 · 2 obs
● 2026-05-15 11:09:36
● 2026-07-27 16:41:36
○A2606:4700:3031::ac43:a36b2026-05-15 → 2026-05-15 · 3 obs
● 2026-05-15 11:09:36
○ 2026-07-02 18:21:38
○ 2026-07-27 16:41:36
○A2606:4700:3035::6815:4ada2026-05-15 → 2026-05-15 · 3 obs
● 2026-05-15 11:09:36
○ 2026-07-02 18:21:38
○ 2026-07-27 16:41:36
●A2606:4700:3036::ac43:a36b2026-07-02 → 2026-07-27 · 3 obs
○ 2026-05-15 11:09:36
● 2026-07-02 18:21:38
● 2026-07-27 16:41:36
●A2606:4700:3037::6815:4ada2026-07-02 → 2026-07-27 · 3 obs
○ 2026-05-15 11:09:36
● 2026-07-02 18:21:38
● 2026-07-27 16:41:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net...-
cursosnr.comvenus.ns.cloudflare.com, johnny.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.235

NS records: venus.ns.cloudflare.com, johnny.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cursosnr.com (unsigned zone)

⏱️ Timing

Total: 145ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.163.107, 104.21.74.218
AAAA22606:4700:3036::ac43:a36b, 2606:4700:3037::6815:4ada
NS2johnny.ns.cloudflare.com, venus.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1johnny.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

cursosnr.com resolves to four IP addresses: 104.21.74.218, 172.67.163.107, 2606:4700:3036::ac43:a36b and 2606:4700:3037::6815:4ada.

wordsapi.com, www.tagata-vet.com, vrhovine.hr and two other host names share IP numbers with cursosnr.com.

Name Servers

cursosnr.com has two authoritative name servers — johnny.ns.cloudflare.com and venus.ns.cloudflare.com.

cursosnr.com uses the same name servers as several other domains — among them soja.ai, d3vops.com, onpages.dev and two more.

cursosnr.com partially shares its NS delegation with several other domains, including winhex.ru, z1s6fm.xyz, wcfairpark.com and two others.

These name servers regularly co-occur with the name servers memphis.ns.cloudflare.com, rachel.ns.cloudflare.com and molly.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

johnny.ns.cloudflare.com points to 108.162.195.186, 162.159.44.186, 172.64.35.186 and 3 other IP addresses.

venus.ns.cloudflare.com points to 108.162.192.235, 172.64.32.235, 173.245.58.235 and 3 other IP addresses.