loop21.net - dns.ninja

`loop21.net`

DNSSEC	⚠️ Not signed
A	185.101.158.178^{🇨🇭 hosttech-AS185.101.158.0/24}
		PTR	`mx307.mail.hostserv.eu`
NS	`ns1.hostserv.eu` ⭐
		A	2001:1680:101:1::2^{🇨🇭 SOLNET2001:1680::/32 SolNet Switzerland}
		A	82.220.34.231^{🇨🇭 SOLNET82.220.0.0/16 SolNet Switzerland}
			PTR	`ns1.tripledns.eu`
NS	`ns2.hostserv.eu`
		A	2001:1af8:4700:a120:4::2^{🇳🇱 LEASEWEB-NL-AMS-012001:1af8::/32 NL-LEASEWEB-20040408 Leaseweb}
		A	5.79.97.178^{🇳🇱 LEASEWEB-NL-AMS-015.79.64.0/18 LEASEWEB}
			PTR	`ns2.tripledns.eu`
NS	`ns3.hostserv.eu`
		A	2a01:4f8:c0c:289d::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		A	94.130.74.45^{🇩🇪 Hetzner94.130.0.0/16 HETZNER-DC}
			PTR	`ns3.tripledns.eu`
MX	`mailgateway.mailserver.ag` ⭐
		A	217.196.69.190^{🇦🇹 JUMPER217.196.64.0/20}
			PTR	`mailgateway.mailserver.ag`
MX	`exchange.loop21.net`⁽²⁰⁾
		A	45.91.244.20^{🇦🇹 LOOP2145.91.244.0/22 IP Range II}
			PTR	`exchange.loop21.net`
MX	`loop21-net.mail.protection.outlook.com`⁽³⁰⁾
		A	2a01:111:f403:ca04::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::c^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00304.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::d^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr05cu01305.inbound.protection.outlook.com`
		A	52.101.68.25^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db8pr02cu00101.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.1^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am3pr04cu00501.inbound.protection.outlook.com`
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
TXT	`google-site-verification=ZF_Ca49jqS-Odi9igPzyv1-V_rY9tZ07BzLOdP26m_4`
TXT	`v=spf1 mx a:exchange.loop21.net a:smtp.loop21.net a:mailgateway.mailserver.ag...`
SOA	`ns1.hostserv.eu`office@offlimit.at 2026-07-15 #1

`net`

	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=1785034022

Subdomains

www.loop21.net

exchange.loop21.net

ns2.loop21.net

Same first word

loop21.at

loop21.com

loop21.net

Similar names

pool21.ru

loop12.nl

21pool.com

pool21.com

21pool.io

12pool.com

loop12.com

12pool.de

DNS History

13 records (7 active, 6 former)

○NScustns1.funknetz.at2015-08-22 → 2019-04-07 · 4 obs

● 2015-08-22 23:35:52
● 2019-04-07 17:22:54
○ 2026-02-16 11:21:34
○ 2026-07-26 03:12:08

○NScustns2.funknetz.at2015-08-22 → 2019-04-07 · 4 obs

● 2015-08-22 23:35:52
● 2019-04-07 17:22:54
○ 2026-02-16 11:21:34
○ 2026-07-26 03:12:08

●NSns1.hostserv.eu2026-02-16 → 2026-07-26 · 3 obs

○ 2019-04-07 17:22:54
● 2026-02-16 11:21:34
● 2026-07-26 03:12:08

●NSns2.hostserv.eu2026-02-16 → 2026-07-26 · 3 obs

○ 2019-04-07 17:22:54
● 2026-02-16 11:21:34
● 2026-07-26 03:12:08

●NSns3.hostserv.eu2026-02-16 → 2026-07-26 · 3 obs

○ 2019-04-07 17:22:54
● 2026-02-16 11:21:34
● 2026-07-26 03:12:08

●MXexchange.loop21.net2026-02-16 → 2026-07-26 · 5 obs

○ 2019-04-07 17:22:54
● 2026-02-16 11:21:34
○ 2026-06-26 12:45:18
● 2026-07-25 19:26:56
● 2026-07-26 03:12:08

●MXloop21-net.mail.protection.outlook.com2026-02-16 → 2026-07-26 · 5 obs

○ 2019-04-07 17:22:54
● 2026-02-16 11:21:34
○ 2026-06-26 12:45:18
● 2026-07-25 19:26:56
● 2026-07-26 03:12:08

●MXmailgateway.mailserver.ag2016-03-28 → 2026-07-26 · 6 obs

○ 2015-08-22 23:35:52
● 2016-03-28 16:01:32
● 2019-04-07 17:22:54
○ 2026-06-26 12:45:18
● 2026-07-25 19:26:56
● 2026-07-26 03:12:08

○MXmx.funknetz.at2015-08-22 → 2017-04-06 · 4 obs

● 2015-08-22 23:35:52
● 2017-04-06 07:38:46
○ 2019-04-07 17:22:54
○ 2026-07-26 03:12:08

○A136.243.167.842019-04-07 → 2019-04-07 · 4 obs

○ 2017-04-06 07:38:46
● 2019-04-07 17:22:54
○ 2026-02-16 11:21:34
○ 2026-07-26 03:12:08

●A185.101.158.1782026-02-16 → 2026-07-26 · 5 obs

○ 2019-04-07 17:22:54
● 2026-02-16 11:21:34
○ 2026-06-26 12:45:18
● 2026-07-25 19:26:56
● 2026-07-26 03:12:08

○A217.196.64.352015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 23:35:52
○ 2015-12-16 18:25:02
○ 2026-07-26 03:12:08

○A217.196.64.372015-12-16 → 2017-04-06 · 5 obs

○ 2015-08-22 23:35:52
● 2015-12-16 18:25:02
● 2017-04-06 07:38:46
○ 2019-04-07 17:22:54
○ 2026-07-26 03:12:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	f.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net...	-
loop21.net	ns1.hostserv.eu, ns2.hostserv.eu, ns3.hostserv.eu	-

✅ Authoritative Response

Server:94.130.74.45

NS records: ns1.hostserv.eu, ns2.hostserv.eu, ns3.hostserv.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for loop21.net (unsigned zone)

⏱️ Timing

Total: 802ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.101.158.178`
NS	3	`ns1.hostserv.eu, ns3.hostserv.eu...`
MX	3	`exchange.loop21.net (pri: 20), mailgateway.mailserver.ag (pri: 10)...`
TXT	2	`v=spf1 mx a:exchange.loop21.net a:smtp.l, google-site-verification=ZF_Ca49jqS-Odi9`
SOA	1	`ns1.hostserv.eu office.offlimit.at`

Analysis

Hierarchy

loop21.net is the parent domain of www.loop21.net, exchange.loop21.net and ns2.loop21.net.

IP Addresses

loop21.net points to a single IP number: 185.101.158.178.

Additional host names — ns2.colocore.ch, contaware.com, gaswasserscheisse.eu and two others — share IP numbers with loop21.net.

Name Servers

The authoritative name servers for loop21.net are ns1.hostserv.eu, ns2.hostserv.eu and ns3.hostserv.eu — three in total.

loop21.net shares at least some of its name servers with other domains, including hostsmart.net, noxonradio.ch, petershof.ch and two others.

These name servers are frequently seen alongside ns1.hosttech.ch, ns2.hosttech.ch, ns3.hosttech.ch and 3 other name servers.

ns1.hostserv.eu, ns2.hostserv.eu and ns3.hostserv.eu all resolve to exactly two IP numbers apiece: ns1.hostserv.eu → 82.220.34.231 and 2001:1680:101:1::2; ns2.hostserv.eu → 5.79.97.178 and 2001:1af8:4700:a120:4::2; ns3.hostserv.eu → 94.130.74.45 and 2a01:4f8:c0c:289d::2.

Mail Servers

loop21.net is handled by three mail servers: mailgateway.mailserver.ag, exchange.loop21.net and loop21-net.mail.protection.outlook.com.

loop21.net shares mail servers — at least in part — with other domains, including spiesserundspinner.com, spartadw.at, sestec.eu and two others.

These mail servers are frequently paired with the mail servers mail.mailserver.ag, mail.k17.at, mail.burisch-wien.com and mail.burisch.co.at.

Host names with 8 IP numbers:

Hostname loop21-net.mail.protection.outlook.com directs to 52.101.68.25, 52.101.68.29 and 52.101.73.1 along with 5 other IP addresses.

Host names pointing to a single IP address:

mailgateway.mailserver.ag has the IP address 217.196.69.190.

exchange.loop21.net has the IP address 45.91.244.20.