`school51.ru`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:4a74^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:9df1^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.74.116^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.157.241^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carmelo.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c81^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carmelo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c381^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carmelo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2381^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carmelo.ns.cloudflare.com`
		A	108.162.195.129^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carmelo.ns.cloudflare.com`
		A	162.159.44.129^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carmelo.ns.cloudflare.com`
		A	172.64.35.129^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carmelo.ns.cloudflare.com`
NS	`shaz.ns.cloudflare.com`
		A	2606:4700:50::a29f:26f9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`shaz.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`shaz.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`shaz.ns.cloudflare.com`
		A	108.162.194.249^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`shaz.ns.cloudflare.com`
		A	162.159.38.249^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`shaz.ns.cloudflare.com`
		A	172.64.34.249^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`shaz.ns.cloudflare.com`
MX	`_dc-mx.d36bfeffaf22.school51.ru` ⭐
		A	185.196.9.192^{🇺🇸 swissnetwork02185.196.9.0/24}
TXT	`google-site-verification=-Q1BN-GD1ctrP8kaBVxOFzrzx_3qEweCZpNwN5o5PaM`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.74.116, 172.67.157.241
		IPv6 hints	2606:4700:3034::6815:4a74, 2606:4700:3035::ac43:9df1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=53, name=cloudflare-ech.com
SOA	`carmelo.ns.cloudflare.com`dns@cloudflare.com serial=2398288345

`ru`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.ripn.net` ⭐
	NS	`b.dns.ripn.net`
	NS	`d.dns.ripn.net`
	NS	`e.dns.ripn.net`
	NS	`f.dns.ripn.net`
	SOA	`a.dns.ripn.net`hostmaster@ripn.net serial=4068487

Same first word

school51.edu.mn

school51.cn

school51.ru

school51.net

school51.com

Similar names

51school.cn

school15.com

school15.ru

15school.ru

51school.com

51school.bg

school15.org.ua

school15.yolasite.com

15school.spb.ru

DNS History

15 records (7 active, 8 former)

●NScarmelo.ns.cloudflare.com2026-04-10 → 2026-04-12 · 3 obs

○ 2017-01-30 19:10:44
● 2026-04-10 01:29:00
● 2026-04-12 13:27:14

○NSns1.r01.ru2017-01-30 → 2017-01-30 · 4 obs

○ 2016-04-11 06:34:08
● 2017-01-30 19:10:44
○ 2026-04-10 01:29:00
○ 2026-04-12 13:27:14

○NSns2.r01.ru2017-01-30 → 2017-01-30 · 4 obs

○ 2016-04-11 06:34:08
● 2017-01-30 19:10:44
○ 2026-04-10 01:29:00
○ 2026-04-12 13:27:14

●NSshaz.ns.cloudflare.com2026-04-10 → 2026-04-12 · 3 obs

○ 2017-01-30 19:10:44
● 2026-04-10 01:29:00
● 2026-04-12 13:27:14

○NSstatuspage1.nic.ru2015-07-22 → 2016-04-11 · 4 obs

● 2015-07-22 02:33:12
● 2016-04-11 06:34:08
○ 2017-01-30 19:10:44
○ 2026-04-12 13:27:14

○NSstatuspage2.nic.ru2015-07-22 → 2016-04-11 · 4 obs

● 2015-07-22 02:33:12
● 2016-04-11 06:34:08
○ 2017-01-30 19:10:44
○ 2026-04-12 13:27:14

●MX_dc-mx.d36bfeffaf22.school51.ru2026-04-10 → 2026-04-12 · 3 obs

○ 2017-01-30 19:10:44
● 2026-04-10 01:29:00
● 2026-04-12 13:27:14

○MXnomail.nic.ru2016-04-11 → 2016-04-11 · 3 obs

● 2016-04-11 06:34:08
○ 2017-01-30 19:10:44
○ 2026-04-12 13:27:14

●A104.21.74.1162026-04-10 → 2026-04-12 · 3 obs

○ 2017-01-30 19:10:44
● 2026-04-10 01:29:00
● 2026-04-12 13:27:14

○A109.70.26.372015-07-22 → 2016-04-11 · 4 obs

● 2015-07-22 02:33:12
● 2016-04-11 06:34:08
○ 2017-01-30 19:10:44
○ 2026-04-12 13:27:14

●A172.67.157.2412026-04-10 → 2026-04-12 · 3 obs

○ 2017-01-30 19:10:44
● 2026-04-10 01:29:00
● 2026-04-12 13:27:14

○A193.124.190.1172017-01-30 → 2017-01-30 · 4 obs

○ 2016-04-11 06:34:08
● 2017-01-30 19:10:44
○ 2026-04-10 01:29:00
○ 2026-04-12 13:27:14

○A194.85.61.762015-07-22 → 2016-04-11 · 4 obs

● 2015-07-22 02:33:12
● 2016-04-11 06:34:08
○ 2017-01-30 19:10:44
○ 2026-04-12 13:27:14

●A2606:4700:3034::6815:4a742026-04-10 → 2026-04-12 · 3 obs

○ 2017-01-30 19:10:44
● 2026-04-10 01:29:00
● 2026-04-12 13:27:14

●A2606:4700:3035::ac43:9df12026-04-10 → 2026-04-12 · 3 obs

○ 2017-01-30 19:10:44
● 2026-04-10 01:29:00
● 2026-04-12 13:27:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
school51.ru	shaz.ns.cloudflare.com, carmelo.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.129

NS records: shaz.ns.cloudflare.com, carmelo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for school51.ru (unsigned zone)

⏱️ Timing

Total: 631ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.74.116, 172.67.157.241`
AAAA	2	`2606:4700:3035::ac43:9df1, 2606:4700:3034::6815:4a74`
NS	2	`carmelo.ns.cloudflare.com, shaz.ns.cloudflare.com`
MX	1	`_dc-mx.d36bfeffaf22.school51.ru (pri: 0)`
TXT	1	`google-site-verification=-Q1BN-GD1ctrP8k`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`carmelo.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

school51.ru maps to four IP numbers: 2606:4700:3034::6815:4a74, 2606:4700:3035::ac43:9df1, 104.21.74.116 and 172.67.157.241.

other host names include aurevionthlase.com, ashdyt.cn, gymheroapp.com, mail.scorela.org and silenthraxavo.com; they share IP numbers with school51.ru.

Name Servers

Two name servers carmelo.ns.cloudflare.com and shaz.ns.cloudflare.com handle the delegation for school51.ru.

school51.ru shares the same name server setup as other domains, for instance glancecast.com, videox.top, bcbahours.com, infopls.net and rhinogoldenrush.com.

school51.ru at least partially shares name servers with other domains, for instance gianso.gr, lfsd.net, vinteragglutinate.pro, zlslxg.tattoo and meta-arcora.pages.dev.

These name servers are commonly used alongside tadeo.ns.cloudflare.com, cortney.ns.cloudflare.com and wren.ns.cloudflare.com.

Six IP addresses per host:

carmelo.ns.cloudflare.com points to 2606:4700:58::a29f:2c81, 2803:f800:50::6ca2:c381, 2a06:98c1:50::ac40:2381, 108.162.195.129, 162.159.44.129 and 172.64.35.129; shaz.ns.cloudflare.com points to 2606:4700:50::a29f:26f9, 2803:f800:50::6ca2:c2f9, 2a06:98c1:50::ac40:22f9, 108.162.194.249, 162.159.38.249 and 172.64.34.249

Mail Servers

school51.ru is handled by a single mail server, _dc-mx.d36bfeffaf22.school51.ru.

The host name _dc-mx.d36bfeffaf22.school51.ru points to IP 185.196.9.192.

school51.ru - robtex.com

school51.ru

ru

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`school51.ru`

`ru`