`backstroke.us`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:28c7^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3030::ac43:8a8f^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.40.199^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.138.143^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`eva.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a72^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eva.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c072^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`eva.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2072^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`eva.ns.cloudflare.com`
		A	108.162.192.114^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eva.ns.cloudflare.com`
		A	172.64.32.114^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eva.ns.cloudflare.com`
		A	173.245.58.114^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eva.ns.cloudflare.com`
NS	`pranab.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cc7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3c7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pranab.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23c7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pranab.ns.cloudflare.com`
		A	108.162.195.199^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
		A	162.159.44.199^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
		A	172.64.35.199^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pranab.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.40.199, 172.67.138.143
		IPv6 hints	2606:4700:3030::6815:28c7, 2606:4700:3030::ac43:8a8f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=49, name=cloudflare-ech.com
SOA	`eva.ns.cloudflare.com`dns@cloudflare.com serial=2411219619

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1786039641

Same first word

backstroke.us

backstroke.herokuapp.com

backstroke.ai

backstroke.com

backstroke.com.au

Similar names

brakestock.pl

bakerstock.com

strokeback.eu

DNS History

25 records (6 active, 19 former)

○NSdns1.registrar-servers.com2016-07-25 → 2016-07-25 · 4 obs

○ 2016-03-22 22:24:42
● 2016-07-25 19:07:52
○ 2017-04-01 22:50:24
○ 2026-08-06 18:46:22

○NSdns2.registrar-servers.com2016-07-25 → 2016-07-25 · 4 obs

○ 2016-03-22 22:24:42
● 2016-07-25 19:07:52
○ 2017-04-01 22:50:24
○ 2026-08-06 18:46:22

○NSeric.ns.cloudflare.com2017-04-01 → 2020-03-16 · 5 obs

○ 2016-07-25 19:07:52
● 2017-04-01 22:50:24
● 2020-03-16 16:17:20
○ 2026-04-07 08:58:44
○ 2026-08-06 18:46:22

●NSeva.ns.cloudflare.com2026-04-07 → 2026-08-06 · 3 obs

○ 2020-03-16 16:17:20
● 2026-04-07 08:58:44
● 2026-08-06 18:46:22

○NSkay.ns.cloudflare.com2017-04-01 → 2020-03-16 · 5 obs

○ 2016-07-25 19:07:52
● 2017-04-01 22:50:24
● 2020-03-16 16:17:20
○ 2026-04-07 08:58:44
○ 2026-08-06 18:46:22

○NSns01.cashparking.com2015-08-11 → 2016-03-22 · 4 obs

● 2015-08-11 06:20:34
● 2016-03-22 22:24:42
○ 2016-07-25 19:07:52
○ 2026-08-06 18:46:22

●NSpranab.ns.cloudflare.com2026-04-07 → 2026-08-06 · 3 obs

○ 2020-03-16 16:17:20
● 2026-04-07 08:58:44
● 2026-08-06 18:46:22

○MXmailstore1.secureserver.net2015-08-11 → 2016-03-22 · 4 obs

● 2015-08-11 06:20:34
● 2016-03-22 22:24:42
○ 2016-07-25 19:07:52
○ 2026-08-06 18:46:22

○MXsmtp.secureserver.net2015-08-11 → 2016-03-22 · 4 obs

● 2015-08-11 06:20:34
● 2016-03-22 22:24:42
○ 2016-07-25 19:07:52
○ 2026-08-06 18:46:22

●A104.21.40.1992026-04-07 → 2026-08-06 · 3 obs

○ 2020-03-16 16:17:20
● 2026-04-07 08:58:44
● 2026-08-06 18:46:22

○A104.31.90.532017-04-01 → 2020-03-16 · 5 obs

○ 2016-07-25 19:07:52
● 2017-04-01 22:50:24
● 2020-03-16 16:17:20
○ 2026-04-07 08:58:44
○ 2026-08-06 18:46:22

○A104.31.91.532017-04-01 → 2020-03-16 · 5 obs

○ 2016-07-25 19:07:52
● 2017-04-01 22:50:24
● 2020-03-16 16:17:20
○ 2026-04-07 08:58:44
○ 2026-08-06 18:46:22

●A172.67.138.1432026-04-07 → 2026-08-06 · 3 obs

○ 2020-03-16 16:17:20
● 2026-04-07 08:58:44
● 2026-08-06 18:46:22

○A184.168.221.962015-08-11 → 2016-03-22 · 4 obs

● 2015-08-11 06:20:34
● 2016-03-22 22:24:42
○ 2016-07-25 19:07:52
○ 2026-08-06 18:46:22

○A23.23.196.1652016-07-25 → 2016-07-25 · 4 obs

○ 2016-03-22 22:24:42
● 2016-07-25 19:07:52
○ 2017-04-01 22:50:24
○ 2026-08-06 18:46:22

○A2400:cb00:2048:1::681f:5a352017-04-01 → 2017-04-01 · 4 obs

○ 2016-07-25 19:07:52
● 2017-04-01 22:50:24
○ 2020-03-16 16:17:20
○ 2026-08-06 18:46:22

○A2400:cb00:2048:1::681f:5b352017-04-01 → 2017-04-01 · 4 obs

○ 2016-07-25 19:07:52
● 2017-04-01 22:50:24
○ 2020-03-16 16:17:20
○ 2026-08-06 18:46:22

●A2606:4700:3030::6815:28c72026-06-19 → 2026-08-06 · 3 obs

○ 2026-04-07 08:58:44
● 2026-06-19 07:16:48
● 2026-08-06 18:46:22

●A2606:4700:3030::ac43:8a8f2026-06-19 → 2026-08-06 · 3 obs

○ 2026-04-07 08:58:44
● 2026-06-19 07:16:48
● 2026-08-06 18:46:22

○A2606:4700:3032::6815:28c72026-04-07 → 2026-04-07 · 4 obs

○ 2020-03-16 16:17:20
● 2026-04-07 08:58:44
○ 2026-06-19 07:16:48
○ 2026-08-06 18:46:22

○A2606:4700:3034::ac43:8a8f2026-04-07 → 2026-04-07 · 4 obs

○ 2020-03-16 16:17:20
● 2026-04-07 08:58:44
○ 2026-06-19 07:16:48
○ 2026-08-06 18:46:22

○A2606:4700:3035::681f:5a352020-03-16 → 2020-03-16 · 4 obs

○ 2017-04-01 22:50:24
● 2020-03-16 16:17:20
○ 2026-04-07 08:58:44
○ 2026-08-06 18:46:22

○A2606:4700:3036::681f:5b352020-03-16 → 2020-03-16 · 4 obs

○ 2017-04-01 22:50:24
● 2020-03-16 16:17:20
○ 2026-04-07 08:58:44
○ 2026-08-06 18:46:22

○CNAMEbackstroke.herokuapp.com2016-07-25 → 2016-07-25 · 3 obs

● 2016-07-25 19:07:52
○ 2017-04-01 22:50:24
○ 2026-08-06 18:46:22

○CNAMEus-east-1-a.route.herokuapp.com2016-07-25 → 2016-07-25 · 3 obs

● 2016-07-25 19:07:52
○ 2017-04-01 22:50:24
○ 2026-08-06 18:46:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	-
backstroke.us	eva.ns.cloudflare.com, pranab.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.114

NS records: eva.ns.cloudflare.com, pranab.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at backstroke.us: Error: DNS query timeout: 156.154.125.70 for DS backstroke.us

⏱️ Timing

Total: 3436ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.138.143, 104.21.40.199`
AAAA	2	`2606:4700:3030::ac43:8a8f, 2606:4700:3030::6815:28c7`
NS	2	`eva.ns.cloudflare.com, pranab.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`eva.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

backstroke.us points to the four IP addresses 104.21.40.199, 172.67.138.143, 2606:4700:3030::6815:28c7 and 2606:4700:3030::ac43:8a8f.

Among the host names that share IP numbers with backstroke.us are sunbir.com, www.mp4moviez.soccer, pt.(0x736578)yforums.com and two others.

Name Servers

The NS records for backstroke.us delegate to eva.ns.cloudflare.com and pranab.ns.cloudflare.com.

backstroke.us has the same name server delegation as a number of other domains, such as seoresellercompany.com.au, seoaus.com.au, dudeworld.com.au and two more.

The name servers of backstroke.us overlap at least partially with those of other domains — among them kckm.biz, musicfirstclassroom.com.au, openlineopenmind.com and two more.

These name servers commonly appear alongside the name servers hera.ns.cloudflare.com and robin.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

eva.ns.cloudflare.com maps to 108.162.192.114, 172.64.32.114, 173.245.58.114 and 3 additional IP addresses.

pranab.ns.cloudflare.com maps to 108.162.195.199, 162.159.44.199, 172.64.35.199 and 3 additional IP addresses.

backstroke.us - robtex.com

backstroke.us

us

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`backstroke.us`

`us`