`teamviewer.courses`

DNSSEC	⚠️ Not signed
A	188.172.236.218^{🇦🇹 ANEXIA188.172.236.0/22 Anexia AT-1060 Vienna}
NS	`acns01.xaas.systems` ⭐
		A	2a00:11c0:aa1::1^{🇦🇹 ANX-CLOUDDNS2a00:11c0:aa1::/48 Anexia ANYCAST}
			PTR	`acns01.xaas.systems`
		A	217.146.18.1^{🇦🇹 ANX-CLOUDDNS217.146.18.0/24 Anexia ANYCAST}
			PTR	`acns01.xaas.systems`
NS	`tv-ns1.teamviewer.com`
		A	2a00:11c0:aa1::1^{🇦🇹 ANX-CLOUDDNS2a00:11c0:aa1::/48 Anexia ANYCAST}
			PTR	`acns01.xaas.systems`
		A	217.146.18.1^{🇦🇹 ANX-CLOUDDNS217.146.18.0/24 Anexia ANYCAST}
			PTR	`acns01.xaas.systems`
NS	`tv-ns2.teamviewer.com`
		A	2a05:8900:aa1::1^{🇦🇹 ANX-CLOUDDNS2a05:8900:aa1::/48 Anexia ANYCAST}
			PTR	`acns02.xaas.systems`
		A	188.172.248.1^{🇧🇷 ANX-CLOUDDNS188.172.248.0/24 Anexia ANYCAST}
			PTR	`acns02.xaas.systems`
NS	`tv-ns3.teamviewer.com`
		A	2605:380:aa1::1^{🇺🇸 ANX-CLOUDDNS2605:380:aa1::/48 ANEXIA ANYCAST Services ANEXIA, Inc.}
			PTR	`acns03.xaas.systems`
		A	213.227.160.1^{🇦🇹 ANX-CLOUDDNS213.227.160.0/24 Anexia ANYCAST}
			PTR	`acns03.xaas.systems`
NS	`tv-ns4.teamviewer.com`
		A	2803:ad80:aa1::1^{🇵🇦 ANX-CLOUDDNS2803:ad80:aa1::/48 Proxy route}
			PTR	`acns04.xaas.systems`
		A	213.227.191.1^{🇦🇹 ANX-CLOUDDNS213.227.191.0/24 Anexia ANYCAST}
			PTR	`acns04.xaas.systems`
NS	`tv-ns5.teamviewer.com`
		A	2a00:11c0:1010::1^{🇦🇹 ANX-CLOUDDNS2a00:11c0:1010::/48 Anexia ANYCAST}
			PTR	`acns05.xaas.systems`
		A	185.81.208.1^{🇦🇹 ANX-CLOUDDNS185.81.208.0/24 Anexia ANYCAST}
			PTR	`acns05.xaas.systems`
TXT	`v=spf1 -all`
SOA	`acns01.xaas.systems`hostmaster@teamviewer.com serial=14

`courses`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.courses` ⭐
	NS	`b.nic.courses`
	NS	`c.nic.courses`
	NS	`x.nic.courses`
	NS	`y.nic.courses`
	NS	`z.nic.courses`
	SOA	`a.nic.courses`admin@tldns.godaddy serial=1774214006

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teamviewer.legal

DNS History

7 records (7 active, 0 former)

●NSacns01.xaas.systems2026-03-04 → 2026-03-22 · 2 obs

● 2026-03-04 00:22:02
● 2026-03-22 21:20:30

●NStv-ns1.teamviewer.com2026-03-04 → 2026-03-22 · 2 obs

● 2026-03-04 00:22:02
● 2026-03-22 21:20:30

●NStv-ns2.teamviewer.com2026-03-04 → 2026-03-22 · 2 obs

● 2026-03-04 00:22:02
● 2026-03-22 21:20:30

●NStv-ns3.teamviewer.com2026-03-04 → 2026-03-22 · 2 obs

● 2026-03-04 00:22:02
● 2026-03-22 21:20:30

●NStv-ns4.teamviewer.com2026-03-04 → 2026-03-22 · 2 obs

● 2026-03-04 00:22:02
● 2026-03-22 21:20:30

●NStv-ns5.teamviewer.com2026-03-04 → 2026-03-22 · 2 obs

● 2026-03-04 00:22:02
● 2026-03-22 21:20:30

●A188.172.236.2182026-03-04 → 2026-03-22 · 2 obs

● 2026-03-04 00:22:02
● 2026-03-22 21:20:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	a.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses...	12 records
teamviewer.courses	tv-ns3.teamviewer.com, tv-ns4.teamviewer.com, tv-ns2.teamviewer.com, tv-ns1.teamviewer.com...	-

✅ Authoritative Response

Server: 213.227.160.1

NS records: tv-ns3.teamviewer.com, tv-ns4.teamviewer.com, tv-ns2.teamviewer.com, tv-ns1.teamviewer.com, tv-ns5.teamviewer.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teamviewer.courses (unsigned zone)

⏱️ Timing

Total: 961ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.172.236.218`
NS	5	`tv-ns2.teamviewer.com, tv-ns1.teamviewer.com...`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`acns01.xaas.systems hostmaster.teamviewe`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.courses, a.nic.courses, b.nic.courses...)

Analysis

IP Addresses

teamviewer.courses points to an IP address: 188.172.236.218.

other host names include tvssotest6.com, true-ar.com, anadi-online.at, teamviewer.info.pl and novitaetenservice.de; they share IP numbers with teamviewer.courses.

Name Servers

teamviewer.courses delegates to six name servers: tv-ns1.teamviewer.com, tv-ns2.teamviewer.com, tv-ns3.teamviewer.com, tv-ns4.teamviewer.com, tv-ns5.teamviewer.com and acns01.xaas.systems.

teamviewer.courses at least partially shares name servers with other domains, for instance teamviewer.pics, tviot.org, wh-pay-livery.at, anexia-it.com and cc-net.at.