rubycourses.ru - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`rubycourses.ru`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:b8f2^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:1324^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.19.36^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.184.242^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cleo.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c159^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cleo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2159^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cleo.ns.cloudflare.com`
		A	108.162.193.89^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
		A	172.64.33.89^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
		A	173.245.59.89^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cleo.ns.cloudflare.com`
NS	`tegan.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tegan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tegan.ns.cloudflare.com`
		A	108.162.192.226^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	172.64.32.226^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	173.245.58.226^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
MX	`mx.yandex.net` ⭐
		A	2a02:6b8::311^{🇷🇺 TELETECH2a02:6b8::/32 Yandex network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
		A	77.88.21.249^{🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network}
			PTR	`mxfront.stable.qloud-b.yandex.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.19.36, 172.67.184.242
		IPv6 hints	2606:4700:3032::ac43:b8f2, 2606:4700:3033::6815:1324
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=167, name=cloudflare-ech.com
SOA	`cleo.ns.cloudflare.com`dns@cloudflare.com serial=2419181770

`ru`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.ripn.net` ⭐
	NS	`b.dns.ripn.net`
	NS	`c.tld-servers.ru`
	NS	`d.dns.ripn.net`
	NS	`e.dns.ripn.net`
	NS	`f.dns.ripn.net`
	SOA	`a.dns.ripn.net`hostmaster@ripn.net serial=4071045

Same first word

rubycourses.ru

Previous names

Next names

rubycrown.ru

rubydecor.ru

rubydemo.ru

rubydeploy.ru

rubydev.ru

rubydevil.ru

rubydos.ru

rubydrop.ru

rubyenergy.ru

rubyfires.ru

rubyflame.ru

rubyflowers.ru

rubyfox.ru

DNS History

20 records (7 active, 13 former)

○NSchris.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:53:14
○ 2018-10-23 12:03:46
○ 2026-11-10 17:31:30

●NScleo.ns.cloudflare.com2026-09-20 → 2026-11-10 · 3 obs

○ 2018-10-23 12:03:46
● 2026-09-20 03:32:54
● 2026-11-10 17:31:30

○NScoco.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:53:14
○ 2018-10-23 12:03:46
○ 2026-11-10 17:31:30

○NSns1.vscale.io2018-10-23 → 2018-10-23 · 4 obs

○ 2017-03-16 14:53:14
● 2018-10-23 12:03:46
○ 2026-09-20 03:32:54
○ 2026-11-10 17:31:30

○NSns2.vscale.io2018-10-23 → 2018-10-23 · 4 obs

○ 2017-03-16 14:53:14
● 2018-10-23 12:03:46
○ 2026-09-20 03:32:54
○ 2026-11-10 17:31:30

●NStegan.ns.cloudflare.com2026-09-20 → 2026-11-10 · 3 obs

○ 2018-10-23 12:03:46
● 2026-09-20 03:32:54
● 2026-11-10 17:31:30

●MXmx.yandex.net2018-10-23 → 2026-11-10 · 2 obs

● 2018-10-23 12:03:46
● 2026-11-10 17:31:30

●A104.21.19.362026-09-28 → 2026-11-10 · 3 obs

○ 2026-09-20 03:32:54
● 2026-09-28 01:44:12
● 2026-11-10 17:31:30

○A104.31.72.272017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:53:14
○ 2018-10-23 12:03:46
○ 2026-11-10 17:31:30

○A104.31.73.272017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:53:14
○ 2018-10-23 12:03:46
○ 2026-11-10 17:31:30

●A172.67.184.2422026-09-28 → 2026-11-10 · 3 obs

○ 2026-09-20 03:32:54
● 2026-09-28 01:44:12
● 2026-11-10 17:31:30

○A188.114.96.02026-09-20 → 2026-09-20 · 4 obs

○ 2018-10-23 12:03:46
● 2026-09-20 03:32:54
○ 2026-09-28 01:44:12
○ 2026-11-10 17:31:30

○A188.114.97.02026-09-20 → 2026-09-20 · 4 obs

○ 2018-10-23 12:03:46
● 2026-09-20 03:32:54
○ 2026-09-28 01:44:12
○ 2026-11-10 17:31:30

○A2400:cb00:2048:1::681f:481b2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:53:14
○ 2018-10-23 12:03:46
○ 2026-11-10 17:31:30

○A2400:cb00:2048:1::681f:491b2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 14:53:14
○ 2018-10-23 12:03:46
○ 2026-11-10 17:31:30

●A2606:4700:3032::ac43:b8f22026-09-28 → 2026-11-10 · 3 obs

○ 2026-09-20 03:32:54
● 2026-09-28 01:44:12
● 2026-11-10 17:31:30

●A2606:4700:3033::6815:13242026-09-28 → 2026-11-10 · 3 obs

○ 2026-09-20 03:32:54
● 2026-09-28 01:44:12
● 2026-11-10 17:31:30

○A2a06:98c1:3120::2026-09-20 → 2026-09-20 · 4 obs

○ 2018-10-23 12:03:46
● 2026-09-20 03:32:54
○ 2026-09-28 01:44:12
○ 2026-11-10 17:31:30

○A2a06:98c1:3121::2026-09-20 → 2026-09-20 · 4 obs

○ 2018-10-23 12:03:46
● 2026-09-20 03:32:54
○ 2026-09-28 01:44:12
○ 2026-11-10 17:31:30

○A82.202.221.2172018-10-23 → 2018-10-23 · 4 obs

○ 2017-03-16 14:53:14
● 2018-10-23 12:03:46
○ 2026-09-20 03:32:54
○ 2026-11-10 17:31:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	b.dns.ripn.net, f.dns.ripn.net, a.dns.ripn.net, e.dns.ripn.net...	12 records
rubycourses.ru	cleo.ns.cloudflare.com, tegan.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.89

NS records: cleo.ns.cloudflare.com, tegan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubycourses.ru (unsigned zone)

⏱️ Timing

Total: 3410ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.19.36, 172.67.184.242`
AAAA	2	`2606:4700:3032::ac43:b8f2, 2606:4700:3033::6815:1324`
NS	2	`cleo.ns.cloudflare.com, tegan.ns.cloudflare.com`
MX	1	`mx.yandex.net (pri: 10)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cleo.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

In-bailiwick: 2 (c.tld-servers.ru, c.tld-servers.ru)

Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)

Analysis

IP Addresses

rubycourses.ru resolves to four IP addresses: 104.21.19.36, 172.67.184.242, 2606:4700:3032::ac43:b8f2 and 2606:4700:3033::6815:1324.

Additional host names — neuralar.live, philuckyapk.net, tampnew.com and two others — share IP numbers with rubycourses.ru.

Name Servers

rubycourses.ru uses two name servers for its delegation: cleo.ns.cloudflare.com and tegan.ns.cloudflare.com.

rubycourses.ru shares its name server setup with other domains, including sarnagati.com, casinowyns-de.de, wisdomkking.pages.dev and two others.

rubycourses.ru shares at least some of its name servers with other domains, including acsofficeinteriors.co.uk, sebastien-thuret.fr, biomahdizist.workers.dev and two others.

These name servers are frequently paired with the name servers mustafa.ns.cloudflare.com, sandra.ns.cloudflare.com, walk.ns.cloudflare.com and two others.

Host names with 6 IP numbers:

Hostname cleo.ns.cloudflare.com directs to 108.162.193.89, 172.64.33.89 and 173.245.59.89 along with 3 other IP addresses.

Hostname tegan.ns.cloudflare.com directs to 108.162.192.226, 172.64.32.226 and 173.245.58.226 along with 3 other IP addresses.

Mail Servers

rubycourses.ru has one mail server: mx.yandex.net.

rubycourses.ru shares the same mail server setup as other domains, including gainora-fr.com, flavikerpisa.ru, aura-cosmetics.kg and two others.

rubycourses.ru shares mail servers — at least in part — with other domains, including 3dprefabrik.com.tr, easyway24.ru, mozaikka.ru and two others.

mx.yandex.net points to two IP addresses: 77.88.21.249 and 2a02:6b8::311.