`u2-audio.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:5419^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b909^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.84.25^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.185.9^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`serenity.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:266c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c26c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`serenity.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:226c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`serenity.ns.cloudflare.com`
		A	108.162.194.108^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	162.159.38.108^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	172.64.34.108^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
NS	`yichun.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yichun.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yichun.ns.cloudflare.com`
		A	108.162.193.248^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	172.64.33.248^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	173.245.59.248^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.84.25, 172.67.185.9
		IPv6 hints	2606:4700:3037::6815:5419, 2606:4700:3037::ac43:b909
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOA	`serenity.ns.cloudflare.com`dns@cloudflare.com serial=2398996064

`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=1776255482

Same first word

u2-audio.com

DNS History

12 records (6 active, 6 former)

○NSf1g1ns1.dnspod.net2015-05-27 → 2016-07-10 · 6 obs

● 2015-05-27 06:33:16
○ 2015-10-18 06:05:28
○ 2015-12-24 10:44:14
● 2016-07-10 02:45:10
○ 2020-03-01 21:42:42
○ 2026-04-15 12:21:52

○NSf1g1ns2.dnspod.net2015-05-27 → 2016-07-10 · 6 obs

● 2015-05-27 06:33:16
○ 2015-10-18 06:05:28
○ 2015-12-24 10:44:14
● 2016-07-10 02:45:10
○ 2020-03-01 21:42:42
○ 2026-04-15 12:21:52

○NSns6.dnsdun.com2020-03-01 → 2020-03-01 · 4 obs

○ 2016-07-10 02:45:10
● 2020-03-01 21:42:42
○ 2026-04-09 00:35:22
○ 2026-04-15 12:21:52

○NSns6.dnsdun.net2020-03-01 → 2020-03-01 · 4 obs

○ 2016-07-10 02:45:10
● 2020-03-01 21:42:42
○ 2026-04-09 00:35:22
○ 2026-04-15 12:21:52

●NSserenity.ns.cloudflare.com2026-04-09 → 2026-04-15 · 3 obs

○ 2020-03-01 21:42:42
● 2026-04-09 00:35:22
● 2026-04-15 12:21:52

●NSyichun.ns.cloudflare.com2026-04-09 → 2026-04-15 · 3 obs

○ 2020-03-01 21:42:42
● 2026-04-09 00:35:22
● 2026-04-15 12:21:52

●A104.21.84.252026-04-09 → 2026-04-15 · 3 obs

○ 2020-03-01 21:42:42
● 2026-04-09 00:35:22
● 2026-04-15 12:21:52

●A172.67.185.92026-04-09 → 2026-04-15 · 3 obs

○ 2020-03-01 21:42:42
● 2026-04-09 00:35:22
● 2026-04-15 12:21:52

○A23.88.123.1642020-03-01 → 2020-03-01 · 4 obs

○ 2015-10-18 06:05:28
● 2020-03-01 21:42:42
○ 2026-04-09 00:35:22
○ 2026-04-15 12:21:52

●A2606:4700:3037::6815:54192026-04-09 → 2026-04-15 · 3 obs

○ 2020-03-01 21:42:42
● 2026-04-09 00:35:22
● 2026-04-15 12:21:52

●A2606:4700:3037::ac43:b9092026-04-09 → 2026-04-15 · 3 obs

○ 2020-03-01 21:42:42
● 2026-04-09 00:35:22
● 2026-04-15 12:21:52

○A43.251.229.192015-05-27 → 2015-05-27 · 3 obs

● 2015-05-27 06:33:16
○ 2015-10-18 06:05:28
○ 2026-04-15 12:21:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
u2-audio.com	yichun.ns.cloudflare.com, serenity.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.248

NS records: yichun.ns.cloudflare.com, serenity.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for u2-audio.com (unsigned zone)

⏱️ Timing

Total: 140ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.84.25, 172.67.185.9`
AAAA	2	`2606:4700:3037::ac43:b909, 2606:4700:3037::6815:5419`
NS	2	`serenity.ns.cloudflare.com, yichun.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`serenity.ns.cloudflare.com dns.cloudflar`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

u2-audio.com resolves to four IPs: 2606:4700:3037::6815:5419, 2606:4700:3037::ac43:b909, 104.21.84.25 and 172.67.185.9.

Other host names, for instance miamidaily.life, mail.mobileworld.today, maleconinn.com, culinarycorner.in and www.wox.cn.com share IP numbers with u2-audio.com.

Name Servers

u2-audio.com has two name servers: serenity.ns.cloudflare.com and yichun.ns.cloudflare.com.

u2-audio.com shares the same name server setup as other domains, for example za-fitness.com, misuphoto.com, weiyish.com, sdydy.com and hjlpc.com.

u2-audio.com shares some name servers with other domains, for example betobet-br.com, plumlakelibrary.org, ryc.org, casino-royale-us.com and coloradosportsandspine.org.

These name servers are commonly used with the name servers brad.ns.cloudflare.com.

Host names with six IP numbers: serenity.ns.cloudflare.com points to: 2606:4700:50::a29f:266c, 2803:f800:50::6ca2:c26c, 2a06:98c1:50::ac40:226c, 108.162.194.108, 162.159.38.108 and 172.64.34.108; yichun.ns.cloudflare.com points to: 2606:4700:58::adf5:3bf8, 2803:f800:50::6ca2:c1f8, 2a06:98c1:50::ac40:21f8, 108.162.193.248, 172.64.33.248 and 173.245.59.248.

u2-audio.com - robtex.com

u2-audio.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`u2-audio.com`

`com`