`4us.ai`

DNSSEC	⚠️ Not signed
A	135.181.41.169^{🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC}
		PTR	`static.169.41.181.135.clients.your-server.de`
NS	`ns10.uadns.com` ⭐
		A	2604:a880:cad:d0::c2d:f001^{🇨🇦 DIGITALOCEAN2604:a880:cad::/48 DigitalOcean}
			PTR	`ns10.1.uadns.com`
		A	2a01:4f9:3081:32c5::2^{🇩🇪 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK}
		A	37.27.65.110^{🇫🇮 Hetzner37.27.0.0/16 HETZNER-DC}
			PTR	`ns10.uadns.com`
		A	167.99.186.139^{🇨🇦 DIGITALOCEAN167.99.176.0/20 DigitalOcean}
			PTR	`ns10.1.uadns.com`
NS	`ns11.uadns.com`
		A	2604:a880:4:1d0::46d:c000^{🇺🇸 DIGITALOCEAN2604:a880:4::/48 DigitalOcean}
			PTR	`ns11.1.uadns.com`
		A	2a03:b0c0:2:d0::1333:4001^{🇳🇱 DIGITALOCEAN2a03:b0c0:2::/48 DigitalOcean}
			PTR	`ns11.uadns.com`
		A	104.248.82.229^{🇳🇱 DIGITALOCEAN104.248.80.0/20 DigitalOcean}
			PTR	`ns11.uadns.com`
		A	143.198.111.77^{🇺🇸 DIGITALOCEAN143.198.96.0/20 DigitalOcean}
			PTR	`ns11.1.uadns.com`
NS	`ns12.uadns.com` ⚠️ Not in parent delegation
		A	2604:a880:800:10::ac8:1^{🇺🇸 DIGITALOCEAN2604:a880:800::/48 DigitalOcean}
			PTR	`ns12.1.uadns.com`
		A	2a03:b0c0:3:d0::e30:3001^{🇩🇪 DIGITALOCEAN2a03:b0c0:3::/48 DigitalOcean}
			PTR	`ns12.uadns.com`
		A	104.131.179.100^{🇺🇸 DIGITALOCEAN104.131.176.0/20 DigitalOcean}
			PTR	`ns12.1.uadns.com`
		A	134.209.251.28^{🇩🇪 DIGITALOCEAN134.209.240.0/20 DigitalOcean}
			PTR	`ns12.uadns.com`
MX	`mail.4us.ai` ⭐
		A	135.181.41.169^{🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC}
			PTR	`static.169.41.181.135.clients.your-server.de`
TXT	`ca74a568a1eefe1e66c9091ec65dd21290d21ed6`
TXT	`dan-ownership-verification=9720uvcp`
SOA	`ns10.uadns.com`hostmaster@nic.ua 2025-03-20 #50

`ai`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.ai` ⭐
	NS	`v0n1.nic.ai`
	NS	`v0n2.nic.ai`
	NS	`v0n3.nic.ai`
	NS	`v2n0.nic.ai`
	NS	`v2n1.nic.ai`
	SOA	`v0n0.nic.ai`hostmaster@donuts.email serial=1783918320

Subdomains

mail.4us.ai

Same first word

4us.tech

4us.me

4us.nl

4us.us

4us.click

4us.be

4us.biz

4us.com.de

4us.quest

4us.club

4us.asia

4us.co.uk

4us.best

4us.jp

4us.online

4us.co

4us.synology.me

4us.autos

4us.dk

4us.info

4us.onl

4us.org

4us.in

4us.space

4us.co.il

4us.com

4us.no

4us.at

4us.vg

4us.ca

4us.mobi

4us.ma

4us.de

4us.se

4us.eu

4us.ch

4us.su

4us.ro

4us.company

4us.ru

4us.lv

4us.ai

4us.cz

4us.co.in

4us.fr

4us.net

4us.pl

4us.beauty

4us.com.tr

4us.lt

Similar names

s4u.net

s4u.cn

s4u.de

s4u.cc

us4.de

s4u.ua

s4u.pl

u4s.com

4su.nl

s4u.ru

us4.co

us4.nl

us4.info

s4u.com.ua

su4.org

s4u.cat

s4u.blogspot.com

s4u.eu

us4.ru

s4u.co.il

s4u.ma

s4u.info

su4.us

s4u.pro

s4u.nl

s4u.it

us4.com

4su.org

u4s.ir

u4s.ru

s4u.in

4su.ir

4su.de

s4u.lt

s4u.click

s4u.at

s4u.com.tr

u4s.eu

s4u.dk

su4.ru

s4u.su

us4.cn

su4.jp

u4s.co.th

s4u.com

s4u.jp

4su.com

us4.net

s4u.hu

s4u.org

us4.global.ssl.fastly.net

su4.cn

4su.net

u4s.co.uk

s4u.fr

4su.cn

s4u.gr

s4u.se

s4u.online

us4.me

us4.name

su4.de

u4s.ws

s4u.com.co

u4s.org

s4u.cz

s4u.com.br

s4u.es

s4u.biz

DNS History

5 records (5 active, 0 former)

●NSns10.uadns.com2026-06-24 → 2026-07-13 · 2 obs

● 2026-06-24 20:57:34
● 2026-07-13 05:20:34

●NSns11.uadns.com2026-06-24 → 2026-07-13 · 2 obs

● 2026-06-24 20:57:34
● 2026-07-13 05:20:34

●NSns12.uadns.com2026-06-30 → 2026-07-13 · 3 obs

○ 2026-06-24 20:57:34
● 2026-06-30 01:59:10
● 2026-07-13 05:20:34

●MXmail.4us.ai2026-06-30 → 2026-07-13 · 2 obs

● 2026-06-30 01:59:10
● 2026-07-13 05:20:34

●A135.181.41.1692026-06-30 → 2026-07-13 · 2 obs

● 2026-06-30 01:59:10
● 2026-07-13 05:20:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ai	v0n0.nic.ai, v0n2.nic.ai, v2n1.nic.ai, v2n0.nic.ai...	12 records
4us.ai	ns10.uadns.com, ns11.uadns.com	-

✅ Authoritative Response

Server:143.198.111.77

NS records: ns10.uadns.com, ns11.uadns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4us.ai (unsigned zone)

⏱️ Timing

Total: 697ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`135.181.41.169`
NS	3	`ns11.uadns.com, ns10.uadns.com...`
MX	1	`mail.4us.ai (pri: 10)`
TXT	2	`ca74a568a1eefe1e66c9091ec65dd21290d21ed6, dan-ownership-verification=9720uvcp`
SOA	1	`ns10.uadns.com hostmaster.nic.ua`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.ai, v0n0.nic.ai, v0n2.nic.ai...)

Analysis

Hierarchy

The domain mail.4us.ai falls under the parent 4us.ai.

IP Addresses

4us.ai points to a single IP number: 135.181.41.169.

Additional host names — mail.centos.tv, mail.2017rik.pp.ua, tmk.com.ua and two others — share IP numbers with 4us.ai.

Name Servers

4us.ai has three name servers — ns10.uadns.com, ns11.uadns.com and ns12.uadns.com.

At least some of 4us.ai's name servers are shared with other domains, for example radiorynok.org.ua, rulon.com.ua, neolit.kiev.ua and two more.

Each of the hosts ns10.uadns.com, ns11.uadns.com and ns12.uadns.com resolves to four IP addresses: ns10.uadns.com points to 37.27.65.110, 167.99.186.139, 2604:a880:cad:d0::c2d:f001 and 2a01:4f9:3081:32c5::2; ns11.uadns.com points to 104.248.82.229, 143.198.111.77, 2604:a880:4:1d0::46d:c000 and 2a03:b0c0:2:d0::1333:4001; and ns12.uadns.com points to 104.131.179.100, 134.209.251.28, 2604:a880:800:10::ac8:1 and 2a03:b0c0:3:d0::e30:3001.

Mail Servers

4us.ai has one mail server: mail.4us.ai.

mail.4us.ai points to one IP number — 135.181.41.169.

4us.ai - robtex.com

4us.ai

ai