`021tarena.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:de74^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:3b5e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.59.94^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.222.116^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jose.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c58^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jose.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c358^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jose.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2358^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jose.ns.cloudflare.com`
		A	108.162.195.88^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jose.ns.cloudflare.com`
		A	162.159.44.88^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jose.ns.cloudflare.com`
		A	172.64.35.88^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jose.ns.cloudflare.com`
NS	`rachel.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rachel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rachel.ns.cloudflare.com`
		A	108.162.192.215^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	172.64.32.215^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	173.245.58.215^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.59.94, 172.67.222.116
		IPv6	2606:4700:3031::ac43:de74, 2606:4700:3037::6815:3b5e
SOA	`jose.ns.cloudflare.com`dns@cloudflare.com serial=2398196467

`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=1771291435

Subdomains

www.021tarena.com

DNS History

19 records (6 active, 13 former)

○NSjm1.dns.com2020-01-19 → 2020-01-19 · 4 obs

○ 2015-11-15 04:34:10
● 2020-01-19 13:55:56
○ 2026-03-11 11:59:06
○ 2026-03-11 11:59:08

○NSjm2.dns.com2020-01-19 → 2020-01-19 · 4 obs

○ 2015-11-15 04:34:10
● 2020-01-19 13:55:56
○ 2026-03-11 11:59:06
○ 2026-03-11 11:59:08

●NSjose.ns.cloudflare.com2026-03-11 → 2026-03-11 · 3 obs

○ 2020-01-19 13:55:56
● 2026-03-11 11:59:06
● 2026-03-11 11:59:08

○NSns1.myhostadmin.net2015-06-16 → 2015-11-15 · 4 obs

● 2015-06-16 16:26:06
● 2015-11-15 04:34:10
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

○NSns2.myhostadmin.net2015-06-16 → 2015-11-15 · 4 obs

● 2015-06-16 16:26:06
● 2015-11-15 04:34:10
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

○NSns3.myhostadmin.net2015-06-16 → 2015-11-15 · 4 obs

● 2015-06-16 16:26:06
● 2015-11-15 04:34:10
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

○NSns4.myhostadmin.net2015-06-16 → 2015-11-15 · 4 obs

● 2015-06-16 16:26:06
● 2015-11-15 04:34:10
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

○NSns5.myhostadmin.net2015-06-16 → 2015-11-15 · 4 obs

● 2015-06-16 16:26:06
● 2015-11-15 04:34:10
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

○NSns6.myhostadmin.net2015-06-16 → 2015-11-15 · 4 obs

● 2015-06-16 16:26:06
● 2015-11-15 04:34:10
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

●NSrachel.ns.cloudflare.com2026-03-11 → 2026-03-11 · 3 obs

○ 2020-01-19 13:55:56
● 2026-03-11 11:59:06
● 2026-03-11 11:59:08

○MXmail.skrimple.com2016-02-10 → 2017-02-12 · 4 obs

● 2016-02-10 18:16:34
● 2017-02-12 17:04:28
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

○A103.232.215.1362016-05-02 → 2017-02-12 · 5 obs

○ 2016-02-10 18:16:34
● 2016-05-02 18:53:42
● 2017-02-12 17:04:28
○ 2020-01-19 13:55:56
○ 2026-03-11 11:59:08

●A104.21.59.942026-03-11 → 2026-03-11 · 3 obs

○ 2020-01-19 13:55:56
● 2026-03-11 11:59:06
● 2026-03-11 11:59:08

○A118.145.21.1762015-06-16 → 2015-11-15 · 4 obs

● 2015-06-16 16:26:06
● 2015-11-15 04:34:10
○ 2016-02-10 18:16:34
○ 2026-03-11 11:59:08

●A172.67.222.1162026-03-11 → 2026-03-11 · 3 obs

○ 2020-01-19 13:55:56
● 2026-03-11 11:59:06
● 2026-03-11 11:59:08

○A184.105.178.922016-02-10 → 2016-02-10 · 4 obs

○ 2015-11-15 04:34:10
● 2016-02-10 18:16:34
○ 2016-05-02 18:53:42
○ 2026-03-11 11:59:08

○A204.128.60.1252020-01-19 → 2020-01-19 · 4 obs

○ 2017-02-12 17:04:28
● 2020-01-19 13:55:56
○ 2026-03-11 11:59:06
○ 2026-03-11 11:59:08

●A2606:4700:3031::ac43:de742026-03-11 → 2026-03-11 · 3 obs

○ 2020-01-19 13:55:56
● 2026-03-11 11:59:06
● 2026-03-11 11:59:08

●A2606:4700:3037::6815:3b5e2026-03-11 → 2026-03-11 · 3 obs

○ 2020-01-19 13:55:56
● 2026-03-11 11:59:06
● 2026-03-11 11:59:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...	-
021tarena.com	rachel.ns.cloudflare.com, jose.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.195.88

NS records: rachel.ns.cloudflare.com, jose.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 021tarena.com (unsigned zone)

⏱️ Timing

Total: 320ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.59.94, 172.67.222.116`
AAAA	2	`2606:4700:3037::6815:3b5e, 2606:4700:3031::ac43:de74`
NS	2	`jose.ns.cloudflare.com, rachel.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jose.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (rachel.ns.cloudflare.com, rachel.ns.cloudflare.com, rachel.ns.cloudflare.com...)

Analysis

Hierarchy

The parent of www.021tarena.com is 021tarena.com.

IP Addresses

021tarena.com points to four IP numbers: 2606:4700:3031::ac43:de74, 2606:4700:3037::6815:3b5e, 104.21.59.94 and 172.67.222.116.

Other host names, for instance reelinsightdaily.us, bdmsw.cn, 559206.com, 115812.vip and internetcarleasedeal.com share IP numbers with 021tarena.com.

Name Servers

021tarena.com is delegated to two name servers: jose.ns.cloudflare.com and rachel.ns.cloudflare.com.

021tarena.com uses the same name server setup as other domains, for instance doubler.pro, iyodong.com, cqcntz.com, rossdecostore.com and owalawaterbottle.co.za.

021tarena.com shares name servers with other domains at least partially, for instance cotkcollege.com, phlemir.com, pntc.net, rfesedu.com and cncbookkeepingservices.com.

these name servers are commonly used together with donna.ns.cloudflare.com and dana.ns.cloudflare.com.

Host names with six IP numbers: jose.ns.cloudflare.com points to 2606:4700:58::a29f:2c58, 2803:f800:50::6ca2:c358, 2a06:98c1:50::ac40:2358, 108.162.195.88, 162.159.44.88 and 172.64.35.88; rachel.ns.cloudflare.com points to 2606:4700:50::adf5:3ad7, 2803:f800:50::6ca2:c0d7, 2a06:98c1:50::ac40:20d7, 108.162.192.215, 172.64.32.215 and 173.245.58.215.

021tarena.com - robtex.com

021tarena.com

com

Subdomains

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`021tarena.com`

`com`