a2u.dev - dns.ninja

a2u.dev

DNSSEC⚠️ Not signed
A2606:4700:3034::ac43:df76🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:536b🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.83.107Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.223.118🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjoan.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aad🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
A2803:f800:50::6ca2:c0ad🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjoan.ns.cloudflare.com
A2a06:98c1:50::ac40:20ad🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjoan.ns.cloudflare.com
A108.162.192.173🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
A172.64.32.173🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
A173.245.58.173🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoan.ns.cloudflare.com
NSwesley.ns.cloudflare.com
A2606:4700:58::adf5:3bf6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwesley.ns.cloudflare.com
A2803:f800:50::6ca2:c1f6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRwesley.ns.cloudflare.com
A2a06:98c1:50::ac40:21f6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRwesley.ns.cloudflare.com
A108.162.193.246🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwesley.ns.cloudflare.com
A172.64.33.246🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwesley.ns.cloudflare.com
A173.245.59.246🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwesley.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.83.107, 172.67.223.118
IPv6 hints2606:4700:3034::ac43:df76, 2606:4700:3035::6815:536b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=240, name=cloudflare-ech.com
SOAjoan.ns.cloudflare.comdns@cloudflare.com serial=2410334507

dev

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1
🔒 HSTS Preload (+subdomains)

Same first word

a2u.online
a2u.co
a2u.jp
a2u.ru
a2u.se
a2u.co.uk
a2u.biz
a2u.dev
a2u.at
a2u.in
a2u.world
a2u.de
a2u.ch
a2u.org
a2u.me
a2u.nl
a2u.net
a2u.es
a2u.ir
a2u.com.tw
a2u.com
a2u.eu
a2u.cn
a2u.si

Similar names

2ua.in.ua
2au.de
u2a.com
ua2.cn
2au.ru
ua2.org
au2.no
u2a.de
ua2.com
ua2.eu
au2.org
u2a.org
au2.ph
2au.fr
ua2.me
u2a.com.au
u2a.cn
au2.de
2ua.com
au2.ru
2ua.ru
2ua.cn
2au.com
au2.info
u2a.ru
au2.com
ua2.de
2ua.net
2au.net
2ua.org
au2.es
ua2.ru
u2a.net
au2.eu
au2.dk
au2.net.au
ua2.co
u2a.cz
2au.org
u2a.io
ua2.net
au2.cn
au2.net
u2a.me

DNS History

12 records (6 active, 6 former)

NSjoan.ns.cloudflare.comwesley.ns.cloudflare.comA104.21.83.107172.67.223.1182606:4700:3034::ac43:df762606:4700:3035::6815:536b188.114.96.0188.114.97.02606:4700:3030::6815:536b2606:4700:3036::ac43:df762a06:98c1:3120::2a06:98c1:3121::
●NSjoan.ns.cloudflare.com2026-02-16 → 2026-07-28 · 2 obs
● 2026-02-16 23:58:36
● 2026-07-28 17:33:34
●NSwesley.ns.cloudflare.com2026-02-16 → 2026-07-28 · 2 obs
● 2026-02-16 23:58:36
● 2026-07-28 17:33:34
●A104.21.83.1072026-02-16 → 2026-07-28 · 9 obs
● 2026-02-16 23:58:36
● 2026-03-13 16:32:08
○ 2026-03-17 13:47:16
● 2026-03-25 20:16:34
○ 2026-04-05 12:57:54
● 2026-04-06 09:08:48
○ 2026-06-25 02:49:54
● 2026-07-26 06:54:02
● 2026-07-28 17:33:34
●A172.67.223.1182026-02-16 → 2026-07-28 · 9 obs
● 2026-02-16 23:58:36
● 2026-03-13 16:32:08
○ 2026-03-17 13:47:16
● 2026-03-25 20:16:34
○ 2026-04-05 12:57:54
● 2026-04-06 09:08:48
○ 2026-06-25 02:49:54
● 2026-07-26 06:54:02
● 2026-07-28 17:33:34
○A188.114.96.02026-03-17 → 2026-06-25 · 8 obs
○ 2026-03-13 16:32:08
● 2026-03-17 13:47:16
○ 2026-03-25 20:16:34
● 2026-04-05 12:57:54
○ 2026-04-06 09:08:48
● 2026-06-25 02:49:54
○ 2026-07-26 06:54:02
○ 2026-07-28 17:33:34
○A188.114.97.02026-03-17 → 2026-06-25 · 8 obs
○ 2026-03-13 16:32:08
● 2026-03-17 13:47:16
○ 2026-03-25 20:16:34
● 2026-04-05 12:57:54
○ 2026-04-06 09:08:48
● 2026-06-25 02:49:54
○ 2026-07-26 06:54:02
○ 2026-07-28 17:33:34
○A2606:4700:3030::6815:536b2026-02-16 → 2026-06-08 · 9 obs
● 2026-02-16 23:58:36
● 2026-03-13 16:32:08
○ 2026-03-17 13:47:16
● 2026-03-25 20:16:34
○ 2026-04-05 12:57:54
● 2026-04-06 09:08:48
● 2026-06-08 20:10:34
○ 2026-06-24 12:42:26
○ 2026-07-28 17:33:34
●A2606:4700:3034::ac43:df762026-06-24 → 2026-07-28 · 5 obs
○ 2026-06-08 20:10:34
● 2026-06-24 12:42:26
○ 2026-06-25 02:49:54
● 2026-07-26 06:54:02
● 2026-07-28 17:33:34
●A2606:4700:3035::6815:536b2026-06-24 → 2026-07-28 · 5 obs
○ 2026-06-08 20:10:34
● 2026-06-24 12:42:26
○ 2026-06-25 02:49:54
● 2026-07-26 06:54:02
● 2026-07-28 17:33:34
○A2606:4700:3036::ac43:df762026-02-16 → 2026-06-08 · 9 obs
● 2026-02-16 23:58:36
● 2026-03-13 16:32:08
○ 2026-03-17 13:47:16
● 2026-03-25 20:16:34
○ 2026-04-05 12:57:54
● 2026-04-06 09:08:48
● 2026-06-08 20:10:34
○ 2026-06-24 12:42:26
○ 2026-07-28 17:33:34
○A2a06:98c1:3120::2026-03-17 → 2026-06-25 · 8 obs
○ 2026-03-13 16:32:08
● 2026-03-17 13:47:16
○ 2026-03-25 20:16:34
● 2026-04-05 12:57:54
○ 2026-04-06 09:08:48
● 2026-06-25 02:49:54
○ 2026-07-26 06:54:02
○ 2026-07-28 17:33:34
○A2a06:98c1:3121::2026-03-17 → 2026-06-25 · 8 obs
○ 2026-03-13 16:32:08
● 2026-03-17 13:47:16
○ 2026-03-25 20:16:34
● 2026-04-05 12:57:54
○ 2026-04-06 09:08:48
● 2026-06-25 02:49:54
○ 2026-07-26 06:54:02
○ 2026-07-28 17:33:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld5.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...-
a2u.devjoan.ns.cloudflare.com, wesley.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.246

NS records: joan.ns.cloudflare.com, wesley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a2u.dev (unsigned zone)

⏱️ Timing

Total: 1966ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.223.118, 104.21.83.107
AAAA22606:4700:3035::6815:536b, 2606:4700:3034::ac43:df76
NS2joan.ns.cloudflare.com, wesley.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1joan.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

a2u.dev points to the four IP addresses 104.21.83.107, 172.67.223.118, 2606:4700:3034::ac43:df76 and 2606:4700:3035::6815:536b.

broadstreet.net, channeldailynews.com, www.5olana.xyz plus two other host names have IP numbers in common with a2u.dev.

Name Servers

The NS records for a2u.dev delegate to joan.ns.cloudflare.com and wesley.ns.cloudflare.com.

The name server configuration of a2u.dev is shared with other domains, for instance carlosvi.com, accountable2you.com, markergroup.net and two others.

There is at least partial name server overlap between a2u.dev and other domains — ssvpnapp.win, tjkaiping.com, murphysgroup.com.au and two more among them.

These name servers are routinely deployed together with the name servers khalid.ns.cloudflare.com.

Hosts with 6 IP addresses each:

joan.ns.cloudflare.com maps to 108.162.192.173, 172.64.32.173, 173.245.58.173 and 3 additional IP addresses.

wesley.ns.cloudflare.com maps to 108.162.193.246, 172.64.33.246, 173.245.59.246 and 3 additional IP addresses.