rt-st.com - dns.ninja

`rt-st.com`

DNSSEC	⚠️ Not signed
NS	`nsa4.schlundtech.de` ⭐ ⚠️ Not in parent delegation
		A	2607:f1c0:fe:53:185:132:34:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.com`
		A	185.132.34.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.com`
NS	`nsa7.schlundtech.de` ⚠️ Not in zone NS records
		A	2607:f1c0:fe:53:185:132:34:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.com`
		A	185.132.34.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.com`
NS	`nsb4.schlundtech.de` ⚠️ Not in parent delegation
		A	2607:f1c0:fe:53:185:132:35:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.org`
		A	185.132.35.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.org`
NS	`nsb7.schlundtech.de` ⚠️ Not in zone NS records
		A	2607:f1c0:fe:53:185:132:35:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.org`
		A	185.132.35.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.org`
NS	`nsc4.schlundtech.de` ⚠️ Not in parent delegation
		A	2001:8d8:fe:53:217:160:80:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
		A	217.160.80.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
NS	`nsc7.schlundtech.de` ⚠️ Not in zone NS records
		A	2001:8d8:fe:53:217:160:80:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
		A	217.160.80.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
NS	`nsd4.schlundtech.de` ⚠️ Not in parent delegation
		A	2001:8d8:fe:53:217:160:81:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
		A	217.160.81.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
NS	`nsd7.schlundtech.de` ⚠️ Not in zone NS records
		A	2001:8d8:fe:53:217:160:81:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
		A	217.160.81.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
MX	`rtst-com0e.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::9^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00601.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::8^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
		A	52.101.68.0^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`nsa4.schlundtech.de`do-not-reply@rt-st.com 2025-09-25 #0

`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=1786699824

Same first word

rt-st.ru

rt-st.com

Similar names

trs-t.com

stt-r.com

tr-ts.de

tts-r.com

str-t.ru

st-rt.ru

st-tr.com

st-tr.ru

str-t.com

rt-ts.com

st-rt.info

rtt-s.eu

t-str.com

DNS History

15 records (9 active, 6 former)

○NSnsa.eista.info2019-07-03 → 2019-07-03 · 4 obs

○ 2017-04-29 03:14:18
● 2019-07-03 01:41:56
○ 2026-03-05 13:52:34
○ 2026-08-14 09:59:02

●NSnsa4.schlundtech.de2016-12-18 → 2026-08-14 · 5 obs

● 2016-12-18 21:06:46
● 2017-04-29 03:14:18
○ 2019-07-03 01:41:56
● 2026-03-05 13:52:34
● 2026-08-14 09:59:02

●NSnsa7.schlundtech.de2026-03-05 → 2026-08-14 · 3 obs

○ 2019-07-03 01:41:56
● 2026-03-05 13:52:34
● 2026-08-14 09:59:02

●NSnsb4.schlundtech.de2016-12-18 → 2026-08-14 · 2 obs

● 2016-12-18 21:06:46
● 2026-08-14 09:59:02

●NSnsb7.schlundtech.de2026-03-05 → 2026-08-14 · 3 obs

○ 2019-07-03 01:41:56
● 2026-03-05 13:52:34
● 2026-08-14 09:59:02

●NSnsc4.schlundtech.de2016-12-18 → 2026-08-14 · 2 obs

● 2016-12-18 21:06:46
● 2026-08-14 09:59:02

●NSnsc7.schlundtech.de2026-03-05 → 2026-08-14 · 3 obs

○ 2019-07-03 01:41:56
● 2026-03-05 13:52:34
● 2026-08-14 09:59:02

●NSnsd4.schlundtech.de2016-12-18 → 2026-08-14 · 2 obs

● 2016-12-18 21:06:46
● 2026-08-14 09:59:02

●NSnsd7.schlundtech.de2026-03-05 → 2026-08-14 · 3 obs

○ 2019-07-03 01:41:56
● 2026-03-05 13:52:34
● 2026-08-14 09:59:02

○MXmail.rt-st.com2016-12-18 → 2019-07-03 · 5 obs

● 2016-12-18 21:06:46
○ 2017-04-29 03:14:18
● 2019-07-03 01:41:56
○ 2026-03-05 13:52:34
○ 2026-08-14 09:59:02

○MXmail4.eista.info2017-04-29 → 2019-07-03 · 5 obs

○ 2016-12-18 21:06:46
● 2017-04-29 03:14:18
● 2019-07-03 01:41:56
○ 2026-03-05 13:52:34
○ 2026-08-14 09:59:02

●MXrtst-com0e.mail.protection.outlook.com2026-03-05 → 2026-08-14 · 3 obs

○ 2019-07-03 01:41:56
● 2026-03-05 13:52:34
● 2026-08-14 09:59:02

○A188.94.248.1702019-07-03 → 2019-07-03 · 4 obs

○ 2017-04-29 03:14:18
● 2019-07-03 01:41:56
○ 2026-03-05 13:52:34
○ 2026-08-14 09:59:02

○A212.227.11.2002017-04-29 → 2017-04-29 · 4 obs

○ 2016-12-18 21:06:46
● 2017-04-29 03:14:18
○ 2019-07-03 01:41:56
○ 2026-08-14 09:59:02

○A87.106.139.832016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 21:06:46
○ 2017-04-29 03:14:18
○ 2026-08-14 09:59:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net...	-
rt-st.com	nsa7.schlundtech.de, nsb7.schlundtech.de, nsc7.schlundtech.de, nsd7.schlundtech.de	-

✅ Authoritative Response

Server:217.160.81.227

NS records: nsa7.schlundtech.de, nsb7.schlundtech.de, nsc7.schlundtech.de, nsd7.schlundtech.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rt-st.com (unsigned zone)

⏱️ Timing

Total: 616ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`nsa4.schlundtech.de, nsd4.schlundtech.de...`
MX	1	`rtst-com0e.mail.protection.outlook.com (`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`nsa4.schlundtech.de do-not-reply.rt-st.c`

Analysis

Name Servers

DNS for rt-st.com is handled by 8 name servers: nsa4.schlundtech.de, nsa7.schlundtech.de, nsb4.schlundtech.de and 5 others.

rt-st.com partially shares its NS delegation with several other domains, including shp-itexperts.de, incasoft.de, mairlist.net and two others.

These name servers are frequently paired with the name servers nsb7.schlundtech.de, nsc7.schlundtech.de, nsd7.schlundtech.de and two others.

Host names with two IP numbers:

nsa4.schlundtech.de has two IP addresses: 185.132.34.227 and 2607:f1c0:fe:53:185:132:34:227.

nsa7.schlundtech.de has two IP addresses: 185.132.34.227 and 2607:f1c0:fe:53:185:132:34:227.

nsb4.schlundtech.de has two IP addresses: 185.132.35.227 and 2607:f1c0:fe:53:185:132:35:227.

nsb7.schlundtech.de has two IP addresses: 185.132.35.227 and 2607:f1c0:fe:53:185:132:35:227.

nsc4.schlundtech.de has two IP addresses: 217.160.80.227 and 2001:8d8:fe:53:217:160:80:227.

nsc7.schlundtech.de has two IP addresses: 217.160.80.227 and 2001:8d8:fe:53:217:160:80:227.

nsd4.schlundtech.de has two IP addresses: 217.160.81.227 and 2001:8d8:fe:53:217:160:81:227.

nsd7.schlundtech.de has two IP addresses: 217.160.81.227 and 2001:8d8:fe:53:217:160:81:227.

Host names pointing to 2607:f1c0:fe:53:185:132:34:227 IP addresses: nsa4.schlundtech.de and nsa7.schlundtech.de.

Host names pointing to 185.132.34.227 IP addresses: nsa4.schlundtech.de and nsa7.schlundtech.de.

Host names pointing to 2607:f1c0:fe:53:185:132:35:227 IP addresses: nsb4.schlundtech.de and nsb7.schlundtech.de.

Host names pointing to 185.132.35.227 IP addresses: nsb4.schlundtech.de and nsb7.schlundtech.de.

Host names pointing to 2001:8d8:fe:53:217:160:80:227 IP addresses: nsc4.schlundtech.de and nsc7.schlundtech.de.

Host names pointing to 217.160.80.227 IP addresses: nsc4.schlundtech.de and nsc7.schlundtech.de.

Host names pointing to 2001:8d8:fe:53:217:160:81:227 IP addresses: nsd4.schlundtech.de and nsd7.schlundtech.de.

Host names pointing to 217.160.81.227 IP addresses: nsd4.schlundtech.de and nsd7.schlundtech.de.

Mail Servers

rt-st.com has one mail server: rtst-com0e.mail.protection.outlook.com.

rtst-com0e.mail.protection.outlook.com points to 8 IP numbers: 52.101.68.0, 52.101.68.29, 52.101.73.11 and 5 other.