`ostec-instruments.com`

DNSSEC	⚠️ Not signed
A	94.26.244.55^{🇷🇺 SELECTEL94.26.244.0/22 Selectel Route Object}
		PTR	`vs33.usebraind.ru`
NS	`ns3-l2.nic.ru` ⭐
		A	193.232.146.1^{🇷🇺 RU-CENTER193.232.146.0/24 -NETWORK}
			PTR	`ns3-l2.nic.ru`
NS	`ns4-cloud.nic.ru`
		A	89.104.93.30^{🇷🇺 ANYCAST-AS89.104.93.0/24 Ru-Center route}
		A	89.104.93.33^{🇷🇺 ANYCAST-AS89.104.93.0/24 Ru-Center route}
		A	89.104.93.34^{🇷🇺 ANYCAST-AS89.104.93.0/24 Ru-Center route}
		A	89.104.95.30^{🇷🇺 ANYCAST-AS89.104.95.0/24 Ru-Center route}
		A	89.104.95.33^{🇷🇺 ANYCAST-AS89.104.95.0/24 Ru-Center route}
		A	89.104.95.34^{🇷🇺 ANYCAST-AS89.104.95.0/24 Ru-Center route}
NS	`ns4-l2.nic.ru`
		A	91.217.20.20^{🇷🇺 RU-CENTER91.217.20.0/24}
			PTR	`ns4-l2.nic.ru`
NS	`ns8-cloud.nic.ru`
		A	89.104.93.31^{🇷🇺 ANYCAST-AS89.104.93.0/24 Ru-Center route}
		A	89.104.93.35^{🇷🇺 ANYCAST-AS89.104.93.0/24 Ru-Center route}
		A	89.104.93.36^{🇷🇺 ANYCAST-AS89.104.93.0/24 Ru-Center route}
		A	89.104.95.31^{🇷🇺 ANYCAST-AS89.104.95.0/24 Ru-Center route}
		A	89.104.95.35^{🇷🇺 ANYCAST-AS89.104.95.0/24 Ru-Center route}
		A	89.104.95.36^{🇷🇺 ANYCAST-AS89.104.95.0/24 Ru-Center route}
NS	`ns8-l2.nic.ru`
		A	91.217.21.20^{🇷🇺 RU-CENTER-AS91.217.21.0/24 RU-CENTER}
			PTR	`ns8-l2.nic.ru`
MX	`mail2.ostec-group.ru` ⭐
		A	90.154.2.82^{🇷🇺 ROSTELECOM-AS90.154.0.0/19 For Clients of MRF Center.}
MX	`mail.ostec-group.ru`⁽²⁰⁾
		A	89.175.185.153^{🇷🇺 MTS89.175.0.0/16 PJSC}
			PTR	`mail.ostec-group.ru`
SOA	`ns3-l2.nic.ru`dns@nic.ru 2022-03-30 #6

`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=1774363897

Same first word

ostec-instruments.com

DNS History

15 records (8 active, 7 former)

○NSns1.greenred.ru2017-05-10 → 2017-05-10 · 3 obs

● 2017-05-10 03:48:56
○ 2026-03-13 13:00:58
○ 2026-03-24 15:15:26

○NSns11.cloudns.net2017-05-10 → 2017-05-10 · 3 obs

● 2017-05-10 03:48:56
○ 2026-03-13 13:00:58
○ 2026-03-24 15:15:26

○NSns2.greenred.ru2017-05-10 → 2017-05-10 · 3 obs

● 2017-05-10 03:48:56
○ 2026-03-13 13:00:58
○ 2026-03-24 15:15:26

●NSns3-l2.nic.ru2026-03-13 → 2026-03-24 · 3 obs

○ 2017-05-10 03:48:56
● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

○NSns3.greenred.ru2017-05-10 → 2017-05-10 · 3 obs

● 2017-05-10 03:48:56
○ 2026-03-13 13:00:58
○ 2026-03-24 15:15:26

●NSns4-cloud.nic.ru2026-03-13 → 2026-03-24 · 3 obs

○ 2017-05-10 03:48:56
● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

●NSns4-l2.nic.ru2026-03-13 → 2026-03-24 · 3 obs

○ 2017-05-10 03:48:56
● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

○NSns4.greenred.ru2017-05-10 → 2017-05-10 · 3 obs

● 2017-05-10 03:48:56
○ 2026-03-13 13:00:58
○ 2026-03-24 15:15:26

●NSns8-cloud.nic.ru2026-03-13 → 2026-03-24 · 3 obs

○ 2017-05-10 03:48:56
● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

●NSns8-l2.nic.ru2026-03-13 → 2026-03-24 · 3 obs

○ 2017-05-10 03:48:56
● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

●MXmail.ostec-group.ru2026-03-13 → 2026-03-24 · 2 obs

● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

●MXmail2.ostec-group.ru2026-03-13 → 2026-03-24 · 2 obs

● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

○A164.132.93.1402017-05-10 → 2017-05-10 · 3 obs

● 2017-05-10 03:48:56
○ 2026-03-13 13:00:58
○ 2026-03-24 15:15:26

○A164.132.93.1412017-05-10 → 2017-05-10 · 3 obs

● 2017-05-10 03:48:56
○ 2026-03-13 13:00:58
○ 2026-03-24 15:15:26

●A94.26.244.552026-03-13 → 2026-03-24 · 3 obs

○ 2017-05-10 03:48:56
● 2026-03-13 13:00:58
● 2026-03-24 15:15:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ostec-instruments.com	ns8-l2.nic.ru, ns4-l2.nic.ru, ns3-l2.nic.ru, ns8-cloud.nic.ru...	-

✅ Authoritative Response

Server:91.217.21.20

NS records: ns8-l2.nic.ru, ns4-l2.nic.ru, ns3-l2.nic.ru, ns8-cloud.nic.ru, ns4-cloud.nic.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ostec-instruments.com (unsigned zone)

⏱️ Timing

Total: 1047ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`94.26.244.55`
NS	5	`ns3-l2.nic.ru, ns4-l2.nic.ru...`
MX	2	`mail.ostec-group.ru (pri: 10), mail2.ostec-group.ru (pri: 20)`
SOA	1	`ns3-l2.nic.ru dns.nic.ru`

Analysis

IP Addresses

ostec-instruments.com maps to IP address 94.26.244.55.

Other host names, for example, vs33.usebraind.ru share IP numbers with ostec-instruments.com.

Name Servers

ostec-instruments.com delegates to five name servers: ns3-l2.nic.ru, ns4-cloud.nic.ru, ns4-l2.nic.ru, ns8-cloud.nic.ru and ns8-l2.nic.ru.

ostec-instruments.com at least partially shares name servers with other domains such as xn--h1aegcg.xn--p1ai, razvitie.ltd, ostec-materials.ru, fotomost.com and agu-ogi.ru.

these name servers are commonly used with the name servers ns3.nic.ru.

Host names with six IP numbers:

ns4-cloud.nic.ru points to: 89.104.93.30, 89.104.93.33, 89.104.93.34, 89.104.95.30, 89.104.95.33 and 89.104.95.34.

ns8-cloud.nic.ru points to: 89.104.93.31, 89.104.93.35, 89.104.93.36, 89.104.95.31, 89.104.95.35 and 89.104.95.36.

Host names with one IP number:

ns3-l2.nic.ru points to: 193.232.146.1.

ns4-l2.nic.ru points to: 91.217.20.20.

ns8-l2.nic.ru points to: 91.217.21.20.

Mail Servers

Two mail servers handle ostec-instruments.com: mail2.ostec-group.ru and mail.ostec-group.ru.

ostec-instruments.com uses the same mail server setup as other domains, for instance ostec-group.ru and ostec-smt.ru.

ostec-instruments.com shares some mail servers with other domains, at least partially, for instance senson.ru.

Host names with a single IP address:

mail2.ostec-group.ru points to 90.154.2.82

mail.ostec-group.ru points to 89.175.185.153

ostec-instruments.com - robtex.com