`it-checkup.ru`

DNSSEC	⚠️ Not signed
A	178.237.192.2^{🇷🇺 TELEDISCOUNT178.237.192.0/24}
		PTR	`www.telediscount.ru`
NS	`ns.it-checkup.ru` ⚠️ Not in zone NS records
NS	`ns1.it-checkup.ru` ⚠️ Not in zone NS records

`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=4068482

Subdomains

mail.it-checkup.ru

mx.it-checkup.ru

ns1.it-checkup.ru

Same first word

it-checkup.ru

DNS History

5 records (3 active, 2 former)

●NSns.it-checkup.ru2026-02-17 → 2026-04-12 · 2 obs

● 2026-02-17 21:08:24
● 2026-04-12 02:08:46

●NSns1.it-checkup.ru2026-02-17 → 2026-04-12 · 2 obs

● 2026-02-17 21:08:24
● 2026-04-12 02:08:46

○MXmail.it-checkup.ru2026-02-17 → 2026-03-02 · 7 obs

● 2026-02-17 21:08:24
● 2026-02-20 08:44:08
○ 2026-02-20 20:30:18
● 2026-02-21 01:12:42
● 2026-03-02 06:01:12
○ 2026-03-08 18:58:08
○ 2026-04-12 02:08:46

○MXmx.it-checkup.ru2026-02-17 → 2026-03-02 · 7 obs

● 2026-02-17 21:08:24
● 2026-02-20 08:44:08
○ 2026-02-20 20:30:18
● 2026-02-21 01:12:42
● 2026-03-02 06:01:12
○ 2026-03-08 18:58:08
○ 2026-04-12 02:08:46

●A178.237.192.22026-02-17 → 2026-04-12 · 7 obs

● 2026-02-17 21:08:24
○ 2026-02-20 08:44:08
○ 2026-02-21 01:12:42
● 2026-02-21 22:07:00
○ 2026-02-22 18:56:26
● 2026-03-02 06:01:12
● 2026-04-12 02:08:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...	-
it-checkup.ru	ns1.it-checkup.ru, ns.it-checkup.ru	2 records

✅ Authoritative Response

Server:178.237.194.18

NS records: ns1.it-checkup.ru, ns.it-checkup.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for it-checkup.ru (unsigned zone)

⏱️ Timing

Total: 755ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.it-checkup.ru, ns.it-checkup.ru`
MX	2	`mx.it-checkup.ru (pri: 10), mail.it-checkup.ru (pri: 20)`
TXT	1	`v=spf1 +a +mx -all`
SOA	1	`ns.it-checkup.ru admin.it-checkup.ru.ru`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.it-checkup.ru, ns.it-checkup.ru)

Analysis

Hierarchy

it-checkup.ru is a parent of mail.it-checkup.ru, mx.it-checkup.ru and ns1.it-checkup.ru.

IP Addresses

it-checkup.ru resolves to one IP number: 178.237.192.2.

Other host names, for instance telediscount.ru, www.telediscount.ru and web2call.ru share IP numbers with it-checkup.ru.

Name Servers

it-checkup.ru's delegation uses two name servers: ns1.it-checkup.ru and ns.it-checkup.ru.

it-checkup.ru - robtex.com

it-checkup.ru

ru