`vmexpert.ru`

DNSSEC	⚠️ Not signed
A	91.226.10.158^{🇷🇺 TCTEL91.226.10.0/23 Your Corporation Network}
		PTR	`corp-sr01.tcorp.ru`
NS	`ns1.tcorp.ru` ⭐
		A	91.226.10.33^{🇷🇺 TCTEL91.226.10.0/23 Your Corporation Network}
			PTR	`dns.tcorp.ru`
NS	`ns2.tcorp.ru`
		A	91.226.11.33^{🇷🇺 TCTEL91.226.10.0/23 Your Corporation Network}
			PTR	`ns2.tcorp.ru`
MX	`mail.vmexpert.ru`⁽²⁰⁾
		A	91.226.10.158^{🇷🇺 TCTEL91.226.10.0/23 Your Corporation Network}
			PTR	`corp-sr01.tcorp.ru`
TXT	`v=spf1 ip4:91.226.10.158 a mx ~all`
SOA	`ns1.tcorp.ru`admin@tcorp.ru 2021-11-18 #57

`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=4068314

Subdomains

mail.vmexpert.ru

Same first word

vmexpert.ru

Similar names

repmextv.com

expertvm.com

DNS History

6 records (4 active, 2 former)

●NSns1.tcorp.ru2017-09-09 → 2026-03-29 · 2 obs

● 2017-09-09 20:30:12
● 2026-03-29 04:33:34

●NSns2.tcorp.ru2017-09-09 → 2026-03-29 · 2 obs

● 2017-09-09 20:30:12
● 2026-03-29 04:33:34

○MXmail.tcorp.ru2017-09-09 → 2017-09-09 · 3 obs

● 2017-09-09 20:30:12
○ 2026-03-25 06:01:48
○ 2026-03-29 04:33:34

●MXmail.vmexpert.ru2026-03-25 → 2026-03-29 · 3 obs

○ 2017-09-09 20:30:12
● 2026-03-25 06:01:48
● 2026-03-29 04:33:34

●A91.226.10.1582026-03-25 → 2026-03-29 · 3 obs

○ 2017-09-09 20:30:12
● 2026-03-25 06:01:48
● 2026-03-29 04:33:34

○A91.226.10.372017-09-09 → 2017-09-09 · 3 obs

● 2017-09-09 20:30:12
○ 2026-03-25 06:01:48
○ 2026-03-29 04:33:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...	-
vmexpert.ru	ns1.tcorp.ru, ns2.tcorp.ru	2 records

✅ Authoritative Response

Server:91.226.11.33

NS records: ns1.tcorp.ru, ns2.tcorp.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vmexpert.ru (unsigned zone)

⏱️ Timing

Total: 727ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.226.10.158`
NS	2	`ns2.tcorp.ru, ns1.tcorp.ru`
MX	2	`mail.vmexpert.ru (pri: 20), mail.vmexpert.ru (pri: 10)`
TXT	1	`v=spf1 ip4:91.226.10.158 a mx ~all`
SOA	1	`ns1.tcorp.ru admin.tcorp.ru`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.tcorp.ru, ns1.tcorp.ru)

Analysis

Hierarchy

mail.vmexpert.ru has vmexpert.ru as its parent.

IP Addresses

vmexpert.ru maps to IP address 91.226.10.158.

Other host names for instance corp-sr01.tcorp.ru and mail.vmexpert.ru share IP numbers with vmexpert.ru.

Name Servers

Two name servers ns1.tcorp.ru and ns2.tcorp.ru are delegated to vmexpert.ru.

vmexpert.ru shares the same name server setup with other domains. For instance, tdomain.ru, tcorporation.ru, securedhost.ru and tadmin.ru.

vmexpert.ru shares name servers with other domains at least partially, for instance tcorp.ru, 11.226.91.in-addr.arpa, 10.226.91.in-addr.arpa and twebmail.ru.

These name servers are commonly used with dns.tcorp.ru and corp.tcorp.ru.

Host names with a single IP address:

ns1.tcorp.ru points to 91.226.10.33

ns2.tcorp.ru points to 91.226.11.33

Mail Servers

vmexpert.ru is handled by a single mail server, mail.vmexpert.ru.

mail.vmexpert.ru points to one IP number: 91.226.10.158.

vmexpert.ru - robtex.com

vmexpert.ru

ru