openedu.ru - dns.ninja

`openedu.ru`

DNSSEC	⚠️ Not signed
A	178.248.235.109^{🇷🇺 HLL-AS178.248.234.0/23 HLL}
NS	`a.ns.selectel.ru` ⭐
		A	2a00:ab00:800::2:53^{🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6}
		A	188.68.203.1^{🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object}
			PTR	`a.ns.selectel.ru`
NS	`b.ns.selectel.ru`
		A	2a00:ab00:801::2:53^{🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6}
		A	77.223.114.2^{🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object}
			PTR	`b.ns.selectel.ru`
NS	`c.ns.selectel.ru`
		A	2a00:ab00:802::2:53^{🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6}
		A	188.68.203.3^{🇷🇺 SELECTEL188.68.203.0/24 Selectel Route Object}
			PTR	`c.ns.selectel.ru`
NS	`d.ns.selectel.ru`
		A	2a00:ab00:803::2:53^{🇷🇺 SELECTEL2a00:ab00::/32 Selectel IPv6}
		A	77.223.114.4^{🇷🇺 SELECTEL77.223.114.0/24 Selectel Route Object}
			PTR	`d.ns.selectel.ru`
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`
TXT	`yandex-verification: 1a4e34e6ce541f30`
TXT	`google-site-verification=zH82xh7RNnd-dLHc9jJ1ZI45d1nOsP7HyR8pzifysF0`
TXT	`yandex-verification: b504103ea83067fb`
TXT	`v=spf1 ip4:51.250.52.4 include:_spf.yandex.net include:spf.unisender.com ~all`
TXT	`google-site-verification=4NTxsj_9A1BD4YksqK44SeHkVIM9O4LwXf2x3txtKBU`
SOA	`a.ns.selectel.ru`support@selectel.ru 2026-04-29 #1

`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=4069762

rank #64113 globally
rank #1944 in the tld
WOT: SAFE (81/100)
📈 Tranco rank: #122,170

Subdomains

apps.openedu.ru

sso.openedu.ru

Same first word

openedu.online

openedu.ah.cn

openedu.com.cn

openedu.pl

openedu.it

openedu.nl

openedu.me

openedu.ru

openedu.pro

openedu.hu

openedu.org

openedu.tw

openedu.cn.com

openedu.de

openedu.vn

openedu.com.au

openedu.eu

openedu.co.uk

openedu.net

openedu.com

openedu.co

openedu.com.my

openedu.ws

Similar names

dueopen.com

oeundpe.de

eudopen.com

eduopen.com

opendue.com

eduopen.org

poduene.com

DNS History

15 records (6 active, 9 former)

●NSa.ns.selectel.ru2026-02-17 → 2026-07-27 · 3 obs

○ 2018-12-27 11:07:08
● 2026-02-17 07:02:16
● 2026-07-27 03:36:06

●NSb.ns.selectel.ru2026-02-17 → 2026-07-27 · 3 obs

○ 2018-12-27 11:07:08
● 2026-02-17 07:02:16
● 2026-07-27 03:36:06

●NSc.ns.selectel.ru2026-02-17 → 2026-07-27 · 3 obs

○ 2018-12-27 11:07:08
● 2026-02-17 07:02:16
● 2026-07-27 03:36:06

●NSd.ns.selectel.ru2026-02-17 → 2026-07-27 · 3 obs

○ 2018-12-27 11:07:08
● 2026-02-17 07:02:16
● 2026-07-27 03:36:06

○NSns.miee.ru2015-06-16 → 2015-11-09 · 4 obs

● 2015-06-16 15:00:50
● 2015-11-09 06:39:42
○ 2015-11-16 22:32:58
○ 2026-07-27 03:36:06

○NSns.sll.ru2015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 15:00:50
○ 2015-09-25 17:37:34
○ 2026-07-27 03:36:06

○NSns2.miee.ru2015-06-16 → 2015-11-09 · 4 obs

● 2015-06-16 15:00:50
● 2015-11-09 06:39:42
○ 2015-11-16 22:32:58
○ 2026-07-27 03:36:06

○NSns2.sll.ru2015-06-16 → 2015-06-16 · 3 obs

● 2015-06-16 15:00:50
○ 2015-09-25 17:37:34
○ 2026-07-27 03:36:06

○NSns3-l2.nic.ru2015-11-16 → 2018-12-27 · 5 obs

○ 2015-11-09 06:39:42
● 2015-11-16 22:32:58
● 2018-12-27 11:07:08
○ 2026-02-17 07:02:16
○ 2026-07-27 03:36:06

○NSns4-cloud.nic.ru2015-11-16 → 2018-12-27 · 5 obs

○ 2015-11-09 06:39:42
● 2015-11-16 22:32:58
● 2018-12-27 11:07:08
○ 2026-02-17 07:02:16
○ 2026-07-27 03:36:06

○NSns4-l2.nic.ru2015-11-16 → 2018-12-27 · 5 obs

○ 2015-11-09 06:39:42
● 2015-11-16 22:32:58
● 2018-12-27 11:07:08
○ 2026-02-17 07:02:16
○ 2026-07-27 03:36:06

○NSns8-cloud.nic.ru2015-11-16 → 2018-12-27 · 5 obs

○ 2015-11-09 06:39:42
● 2015-11-16 22:32:58
● 2018-12-27 11:07:08
○ 2026-02-17 07:02:16
○ 2026-07-27 03:36:06

○NSns8-l2.nic.ru2015-11-16 → 2018-12-27 · 5 obs

○ 2015-11-09 06:39:42
● 2015-11-16 22:32:58
● 2018-12-27 11:07:08
○ 2026-02-17 07:02:16
○ 2026-07-27 03:36:06

●MXmx.yandex.net2015-09-25 → 2026-07-27 · 2 obs

● 2015-09-25 17:37:34
● 2026-07-27 03:36:06

●A178.248.235.1092015-09-25 → 2026-07-27 · 2 obs

● 2015-09-25 17:37:34
● 2026-07-27 03:36:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
openedu.ru	a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru, d.ns.selectel.ru	8 records

✅ Authoritative Response

Server:188.68.203.3

NS records: a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru, d.ns.selectel.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openedu.ru (unsigned zone)

⏱️ Timing

Total: 1608ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`178.248.235.109`
NS	4	`b.ns.selectel.ru, a.ns.selectel.ru...`
MX	1	`mx.yandex.net (pri: 10)`
TXT	5	`v=spf1 ip4:51.250.52.4 include:_spf.yand, yandex-verification: b504103ea83067fb...`
SOA	1	`a.ns.selectel.ru support.selectel.ru`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru...)

Analysis

Hierarchy

apps.openedu.ru and sso.openedu.ru are both subdomains of openedu.ru.

IP Addresses

openedu.ru resolves to one IP address: 178.248.235.109.

apps.openedu.ru and sso.openedu.ru, along with other host names, share IP addresses with openedu.ru.

Name Servers

The authoritative name servers for openedu.ru are a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru.

openedu.ru partially shares its NS delegation with several other domains, including motorwert.ru, everyhotel.site, korona-auto.com and two others.

a.ns.selectel.ru, b.ns.selectel.ru, c.ns.selectel.ru and d.ns.selectel.ru each carry two IP addresses. a.ns.selectel.ru has 188.68.203.1 and 2a00:ab00:800::2:53; b.ns.selectel.ru has 77.223.114.2 and 2a00:ab00:801::2:53; c.ns.selectel.ru has 188.68.203.3 and 2a00:ab00:802::2:53; d.ns.selectel.ru has 77.223.114.4 and 2a00:ab00:803::2:53.

Mail Servers

Mail for openedu.ru is handled by a single mail server, mx.yandex.net.

openedu.ru uses an identical mail server configuration to several other domains — among them barmarketim.com, diyetta.com.tr, cpmed.ru and two more.

openedu.ru has at least partial mail server overlap with other domains such as colorpulse.ru, a--s.ru, av-gk.ru and two more.

The host mx.yandex.net resolves to 77.88.21.249 and 2a02:6b8::311 — two IP addresses.