`teachingtennis.com`

DNSSEC	⚠️ Not signed
A	216.150.1.193^{🇨🇦 Amazon216.150.1.0/24 EC2 Prefix}
A	216.150.16.129^{🇨🇦 Amazon216.150.16.0/24 EC2 Prefix}
NS	`ns1.vercel-dns.com` ⭐
		A	2620:4d:4000:6259:7:13:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p13.nsone.net`
		A	198.51.44.13^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p13.nsone.net`
NS	`ns2.vercel-dns.com`
		A	2a00:edc0:6259:7:13::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p13.nsone.net`
		A	198.51.45.13^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p13.nsone.net`
SOA	`ns1.vercel-dns.com`hostmaster@nsone.net serial=1751925827

`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=1778550061

WOT: SAFE (60/100)

Subdomains

ns1.teachingtennis.com

Same first word

teachingtennis.com

DNS History

16 records (4 active, 12 former)

○NSns1.teachingtennis.com2015-08-08 → 2020-02-28 · 4 obs

● 2015-08-08 19:18:16
● 2020-02-28 06:48:12
○ 2026-03-27 16:07:46
○ 2026-05-12 02:04:46

●NSns1.vercel-dns.com2026-03-27 → 2026-05-12 · 3 obs

○ 2020-02-28 06:48:12
● 2026-03-27 16:07:46
● 2026-05-12 02:04:46

○NSns1.x2a.net2015-08-08 → 2020-02-28 · 4 obs

● 2015-08-08 19:18:16
● 2020-02-28 06:48:12
○ 2026-03-27 16:07:46
○ 2026-05-12 02:04:46

●NSns2.vercel-dns.com2026-03-27 → 2026-05-12 · 3 obs

○ 2020-02-28 06:48:12
● 2026-03-27 16:07:46
● 2026-05-12 02:04:46

○NSns2.x2a.net2015-08-08 → 2020-02-28 · 4 obs

● 2015-08-08 19:18:16
● 2020-02-28 06:48:12
○ 2026-03-27 16:07:46
○ 2026-05-12 02:04:46

○MXmail.teachingtennis.com2015-08-08 → 2020-02-28 · 4 obs

● 2015-08-08 19:18:16
● 2020-02-28 06:48:12
○ 2026-03-27 16:07:46
○ 2026-05-12 02:04:46

○A162.217.76.72017-03-21 → 2020-02-28 · 5 obs

○ 2016-07-11 19:28:50
● 2017-03-21 03:04:38
● 2020-02-28 06:48:12
○ 2026-03-27 16:07:46
○ 2026-05-12 02:04:46

○A162.217.77.82015-08-08 → 2016-07-11 · 4 obs

● 2015-08-08 19:18:16
● 2016-07-11 19:28:50
○ 2017-03-21 03:04:38
○ 2026-05-12 02:04:46

○A216.150.1.12026-03-30 → 2026-04-17 · 9 obs

○ 2026-03-29 22:18:28
● 2026-03-30 07:16:02
● 2026-03-30 20:34:12
○ 2026-03-30 23:08:30
○ 2026-03-31 02:52:42
● 2026-03-31 10:48:38
● 2026-04-17 23:09:30
○ 2026-04-23 17:44:08
○ 2026-05-12 02:04:46

○A216.150.1.1292026-03-30 → 2026-03-30 · 5 obs

○ 2026-03-30 07:16:02
● 2026-03-30 07:53:56
● 2026-03-30 20:34:12
○ 2026-03-30 23:08:30
○ 2026-05-12 02:04:46

●A216.150.1.1932026-04-13 → 2026-05-12 · 6 obs

○ 2026-04-12 19:13:16
● 2026-04-13 07:13:42
○ 2026-04-17 01:36:28
○ 2026-04-17 23:09:30
● 2026-04-23 17:44:08
● 2026-05-12 02:04:46

○A216.150.1.652026-03-27 → 2026-04-12 · 10 obs

○ 2020-02-28 06:48:12
● 2026-03-27 16:07:46
● 2026-03-30 07:16:02
○ 2026-03-30 07:53:56
○ 2026-03-30 23:08:30
● 2026-03-31 02:52:42
○ 2026-03-31 10:48:38
● 2026-04-12 19:13:16
○ 2026-04-13 07:13:42
○ 2026-05-12 02:04:46

○A216.150.16.12026-04-23 → 2026-04-23 · 4 obs

○ 2026-04-17 23:09:30
● 2026-04-23 17:44:08
○ 2026-05-12 02:04:44
○ 2026-05-12 02:04:46

●A216.150.16.1292026-03-30 → 2026-05-12 · 9 obs

○ 2026-03-30 20:34:12
● 2026-03-30 23:08:30
○ 2026-03-31 02:52:42
○ 2026-04-13 07:13:42
● 2026-04-17 01:36:28
○ 2026-04-17 23:09:30
○ 2026-04-23 17:44:08
● 2026-05-12 02:04:44
● 2026-05-12 02:04:46

○A216.150.16.1932026-03-27 → 2026-03-31 · 10 obs

○ 2020-02-28 06:48:12
● 2026-03-27 16:07:46
○ 2026-03-29 21:22:46
● 2026-03-29 22:18:28
○ 2026-03-30 07:16:02
○ 2026-03-30 20:34:12
● 2026-03-30 23:08:30
● 2026-03-31 10:48:38
○ 2026-04-12 19:13:16
○ 2026-05-12 02:04:46

○A216.150.16.652026-03-29 → 2026-04-17 · 7 obs

○ 2026-03-27 16:07:46
● 2026-03-29 21:22:46
○ 2026-03-29 22:18:28
○ 2026-04-17 01:36:28
● 2026-04-17 23:09:30
○ 2026-04-23 17:44:08
○ 2026-05-12 02:04:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net...	-
teachingtennis.com	ns1.vercel-dns.com, ns2.vercel-dns.com	4 records

✅ Authoritative Response

Server:198.51.44.13

NS records: ns1.vercel-dns.com, ns2.vercel-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachingtennis.com (unsigned zone)

⏱️ Timing

Total: 257ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`216.150.16.1, 216.150.1.193`
NS	2	`ns1.vercel-dns.com, ns2.vercel-dns.com`
SOA	1	`ns1.vercel-dns.com hostmaster.nsone.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.vercel-dns.com, ns1.vercel-dns.com, ns2.vercel-dns.com...)

Analysis

Hierarchy

ns1.teachingtennis.com is a child of teachingtennis.com.

IP Addresses

teachingtennis.com has two IP numbers: 216.150.1.193 and 216.150.16.129.

Other host names, for instance www.4lifeent.com, rcus.co.uk, preview.avy-fx.org, zentrawallet.dev and cb0b82cde9f859ce.vercel-dns-016.com share IP numbers with teachingtennis.com.

Name Servers

teachingtennis.com's delegation uses two name servers: ns1.vercel-dns.com and ns2.vercel-dns.com.

teachingtennis.com uses the same name server setup as other domains, such as angelcare.info, askov.dk, armaflon.com, arnbd.com and tyandor.com.

teachingtennis.com at least partially shares name servers with other domains, including davidkaneda.me, codeister.com, delowarhossain.dev, kimtel.fi and ullahamilton.se.

These name servers are often used with f.zeit-world.com and c.zeit-world.org.

Host names with two IPs:

ns1.vercel-dns.com points to 2620:4d:4000:6259:7:13:0:1 and 198.51.44.13

ns2.vercel-dns.com points to 2a00:edc0:6259:7:13::2 and 198.51.45.13

teachingtennis.com - robtex.com