rtcd.ru - dns.ninja

`rtcd.ru`

DNSSEC	⚠️ Not signed
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	`mail.rtcd.ru` ⭐
		A	194.190.191.70^{🇷🇺 RT-INFORM194.190.191.0/24}
			PTR	`mail.rtcd.ru`
MX	`smtp2.rtcd.ru`⁽²⁰⁾
		A	194.190.191.67^{🇷🇺 RT-INFORM194.190.191.0/24}
			PTR	`smtp2.st-grp.ru`
TXT	`v=spf1 mx ip4:194.190.191.67 ip4:194.190.191.70 ~all`
TXT	`_globalsign-domain-verification=PhDMJsgHmKVdxew3t_tN15QnZbmKZLjSqUVI6mqsxS`
TXT	`_globalsign-domain-verification=XDru721kN2lA_CODv7mJCn9BeW_P5FSefHYOB52e0F`
TXT	`_globalsign-domain-verification=gq6JIuFJ8d57Y-RpK2u-dmgkRQUJ8M65sYWX-3Z9-z`
SOA	`ns3-l2.nic.ru`dns@nic.ru 2021-07-19 #17

`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=4069781

Subdomains

mail.rtcd.ru

smtp2.rtcd.ru

Same first word

rtcd.com

rtcd.me

rtcd.ru

rtcd.net

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rdct.com

cdrt.fr

dcrt.de

ctrd.cn

tdrc.org

rdct.net

dcrt.org.uk

rdtc.info

ctdr.or.kr

cdrt.cn

ctrd.com

crdt.com

tdrc.org.cn

drtc.su

rtdc.info

rcdt.ie

dctr.io

crdt.org.cn

trdc.ru

trdc.eu

tdcr.com

dctr.pro

tdcr.io

drct.gr.jp

rtdc.it

rdtc.com

drct.co

tdrc.net

ctdr.io

dtrc.com.tw

rdct.net.cn

ctdr.de

ctdr.ru

rdtc.gov.bt

rtdc.gov.mn

rdct.info

drct.eu

trdc.de

cdtr.ru

cdrt.net

crdt.ca

drct.cc

cdtr.com

crtd.co

drtc.me

drct.de

rdtc.ru

rctd.de

drct.aero

trdc.com

dctr.org

crdt.io

crdt.org

tcdr.com

rdtc.org

dctr.co.uk

dctr.in

drtc.ru

rdtc.co.uk

dtcr.com

dcrt.it

tcrd.cn

tcrd.ru

drtc.ca

trdc.org

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drct.net

dcrt.cn

dctr.net

tdcr.net

crtd.net

trcd.com

crdt.co

dctr.or.kr

cdrt.org

dctr.ru

crdt.fr

tdrc.gov.pk

crdt.eu

cdrt.cat

ctdr.cn

cdtr.co

rdtc.nhs.uk

drct.us

rtdc.cc

crtd.nl

crdt.de

tdrc.ru

drct.co.uk

rcdt.cn

dtrc.co.uk

crtd.co.uk

tdrc.de

cdtr.net.cn

rdct.ru

drtc.de

dtrc.net

DNS History

7 records (7 active, 0 former)

●NSns3-l2.nic.ru2026-04-23 → 2026-07-28 · 2 obs

● 2026-04-23 06:21:40
● 2026-07-28 16:25:44

●NSns4-cloud.nic.ru2026-04-23 → 2026-07-28 · 2 obs

● 2026-04-23 06:21:40
● 2026-07-28 16:25:44

●NSns4-l2.nic.ru2026-04-23 → 2026-07-28 · 2 obs

● 2026-04-23 06:21:40
● 2026-07-28 16:25:44

●NSns8-cloud.nic.ru2026-04-23 → 2026-07-28 · 2 obs

● 2026-04-23 06:21:40
● 2026-07-28 16:25:44

●NSns8-l2.nic.ru2026-04-23 → 2026-07-28 · 2 obs

● 2026-04-23 06:21:40
● 2026-07-28 16:25:44

●MXmail.rtcd.ru2026-04-23 → 2026-07-28 · 2 obs

● 2026-04-23 06:21:40
● 2026-07-28 16:25:44

●MXsmtp2.rtcd.ru2026-04-23 → 2026-07-28 · 2 obs

● 2026-04-23 06:21:40
● 2026-07-28 16:25:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
rtcd.ru	ns3-l2.nic.ru, ns4-l2.nic.ru, ns8-l2.nic.ru, ns4-cloud.nic.ru...	19 records

✅ Authoritative Response

Server:89.104.93.30

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtcd.ru (unsigned zone)

⏱️ Timing

Total: 3841ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	5	`ns3-l2.nic.ru, ns4-l2.nic.ru...`
MX	2	`mail.rtcd.ru (pri: 10), smtp2.rtcd.ru (pri: 20)`
TXT	4	`v=spf1 mx ip4:194.190.191.67 ip4:194.190, _globalsign-domain-verification=PhDMJsgH...`
SOA	1	`ns3-l2.nic.ru dns.nic.ru`

📌 Glue Records Collected

Total: 19

Out-of-bailiwick: 19 (ns3-l2.nic.ru, ns4-l2.nic.ru, ns8-l2.nic.ru...)

Analysis

Hierarchy

rtcd.ru serves as the parent of mail.rtcd.ru and smtp2.rtcd.ru.

Name Servers

Five name servers handle delegation for rtcd.ru: ns3-l2.nic.ru, ns4-cloud.nic.ru, ns4-l2.nic.ru and two others.

There is at least partial name server overlap between rtcd.ru and other domains — opsnv.ru, bgaudio.ru, xn--80amffrbikfgdei.xn--p1ai and two more among them.

These name servers frequently co-occur with the name servers ns8-l2.nic.ru and ns8-cloud.nic.ru.

Hosts with 6 IP addresses each:

ns4-cloud.nic.ru points to 89.104.93.30, 89.104.93.33, 89.104.93.34 and 3 other IP addresses.

ns8-cloud.nic.ru points to 89.104.93.31, 89.104.93.35, 89.104.93.36 and 3 other IP addresses.

Host names resolving to a single IP address:

ns3-l2.nic.ru resolves to 193.232.146.1.

ns4-l2.nic.ru resolves to 91.217.20.20.

ns8-l2.nic.ru resolves to 91.217.21.20.

Mail Servers

rtcd.ru uses two mail servers, mail.rtcd.ru and smtp2.rtcd.ru.

mail.rtcd.ru → 194.190.191.70 and smtp2.rtcd.ru → 194.190.191.67: one IP number per host name.