`rtc-consulting.com`

DNSSEC	⚠️ Not signed
A	2001:8d8:1000:1031:9281:3b88:1a77:283e^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`kundenserver.de`
A	217.160.223.115^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1100.ui-dns.com` ⭐
		A	2001:8d8:fe:53:0:d9a0:5264:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1100.ui-dns.com`
		A	217.160.82.100^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1100.ui-dns.com`
NS	`ns1099.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5163:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1099.ui-dns.biz`
		A	217.160.81.99^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1099.ui-dns.biz`
NS	`ns1107.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:536b:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1107.ui-dns.org`
		A	217.160.83.107^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1107.ui-dns.org`
NS	`ns1121.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:121^{🇺🇸 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	`ns1121.ui-dns.de`
		A	217.160.80.121^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1121.ui-dns.de`
MX	`mx00.ionos.co.uk` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.co.uk` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:outbound.mailhop.org -all`
SOA	`ns1100.ui-dns.com`hostmaster@1und1.com 2017-06-01 #23

`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=1774646002

Same first word

rtc-consulting.co.uk

rtc-consulting.com

DNS History

15 records (8 active, 7 former)

●NSns1099.ui-dns.biz2026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

●NSns1100.ui-dns.com2026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

●NSns1107.ui-dns.org2026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

●NSns1121.ui-dns.de2026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

○NSns33.domaincontrol.com2015-07-23 → 2019-09-18 · 4 obs

● 2015-07-23 00:56:18
● 2019-09-18 04:04:20
○ 2026-03-21 00:32:26
○ 2026-03-27 21:24:22

○NSns34.domaincontrol.com2015-07-23 → 2019-09-18 · 4 obs

● 2015-07-23 00:56:18
● 2019-09-18 04:04:20
○ 2026-03-21 00:32:26
○ 2026-03-27 21:24:22

○MXmailstore1.europe.secureserver.net2017-01-14 → 2019-09-18 · 5 obs

○ 2017-01-06 04:53:30
● 2017-01-14 04:06:06
● 2019-09-18 04:04:20
○ 2026-03-21 00:32:26
○ 2026-03-27 21:24:22

○MXmailstore1.secureserver.net2015-07-23 → 2017-01-06 · 4 obs

● 2015-07-23 00:56:18
● 2017-01-06 04:53:30
○ 2017-01-14 04:06:06
○ 2026-03-27 21:24:22

●MXmx00.ionos.co.uk2026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

●MXmx01.ionos.co.uk2026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

○MXsmtp.europe.secureserver.net2017-01-14 → 2019-09-18 · 5 obs

○ 2017-01-06 04:53:30
● 2017-01-14 04:06:06
● 2019-09-18 04:04:20
○ 2026-03-21 00:32:26
○ 2026-03-27 21:24:22

○MXsmtp.secureserver.net2015-07-23 → 2017-01-06 · 4 obs

● 2015-07-23 00:56:18
● 2017-01-06 04:53:30
○ 2017-01-14 04:06:06
○ 2026-03-27 21:24:22

○A192.168.1.252015-07-23 → 2019-09-18 · 4 obs

● 2015-07-23 00:56:18
● 2019-09-18 04:04:20
○ 2026-03-21 00:32:26
○ 2026-03-27 21:24:22

●A2001:8d8:1000:1031:9281:3b88:1a77:283e2026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

●A217.160.223.1152026-03-21 → 2026-03-27 · 3 obs

○ 2019-09-18 04:04:20
● 2026-03-21 00:32:26
● 2026-03-27 21:24:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
rtc-consulting.com	ns1099.ui-dns.biz, ns1107.ui-dns.org, ns1121.ui-dns.de, ns1100.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.80.121

NS records: ns1099.ui-dns.biz, ns1107.ui-dns.org, ns1121.ui-dns.de, ns1100.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtc-consulting.com (unsigned zone)

⏱️ Timing

Total: 580ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.223.115`
AAAA	1	`2001:8d8:1000:1031:9281:3b88:1a77:283e`
NS	4	`ns1100.ui-dns.com, ns1107.ui-dns.org...`
MX	2	`mx01.ionos.co.uk (pri: 10), mx00.ionos.co.uk (pri: 10)`
TXT	1	`v=spf1 include:outbound.mailhop.org -all`
SOA	1	`ns1100.ui-dns.com hostmaster.1und1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1100.ui-dns.com, ns1100.ui-dns.com)

Analysis

IP Addresses

rtc-consulting.com resolves to two IP numbers: 2001:8d8:1000:1031:9281:3b88:1a77:283e and 217.160.223.115.

Other host names, for instance ebayauto.de, tarablaise.com, rua-tpl.de, nindel.info and arvd.eu share IP numbers with rtc-consulting.com.

Name Servers

rtc-consulting.com's delegation is handled by four name servers: ns1099.ui-dns.biz, ns1100.ui-dns.com, ns1121.ui-dns.de and ns1107.ui-dns.org.

rtc-consulting.com partially shares name servers with other domains; examples include iuventa.com, centromasvida.es, catering-oberursel.de, adlermacher.de and ropexpert.de.

These name servers are commonly used alongside ns1121.ui-dns.org, ns1121.ui-dns.biz, ns1121.ui-dns.com, ns1100.ui-dns.biz, ns1100.ui-dns.de, ns1100.ui-dns.org, ns1099.ui-dns.com, ns1099.ui-dns.de, ns1099.ui-dns.org and ns1107.ui-dns.biz.

Host names with two IPs:

ns1099.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5163:100 and 217.160.81.99

ns1100.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5264:100 and 217.160.82.100

ns1121.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:121 and 217.160.80.121

ns1107.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:536b:100 and 217.160.83.107

Mail Servers

rtc-consulting.com is handled by two mail servers: mx00.ionos.co.uk and mx01.ionos.co.uk.

rtc-consulting.com has the same mail server setup as other domains, including liquid-euphoria.com, wheelguardit.com, wheresgood.com, amalgam.group and dorsetlamb.com.

Host names with one IP number: The host name mx00.ionos.co.uk points to 212.227.15.41 and the host name mx01.ionos.co.uk points to 217.72.192.67.

rtc-consulting.com - robtex.com