u4server.com - dns.ninja

`u4server.com`

DNSSEC	⚠️ Not signed
A	71.218.238.168^{🇺🇸 AS20971.218.0.0/16}
		PTR	`71-218-238-168.hlrn.qwest.net`
NS	`ns1.dynu.com` ⭐
		A	72.51.58.2^{🇨🇦 AS39801972.51.58.0/24 Dynu Systems Incorporated}
			PTR	`ns1.dynu.com`
NS	`ns2.dynu.com`
		A	2602:ff23:0:8888::2^{🇺🇸 AS3980192602:ff23::/48 PNAP-PHX003 marla-1}
			PTR	`ns1.dynu.com`
		A	108.181.13.234^{🇺🇸 AS40676108.181.0.0/19}
			PTR	`ns2.dynu.com`
NS	`ns3.dynu.com`
		A	2605:9f80:4000:214::2^{🇺🇸 DEDICATED-HIVE2605:9f80:4000::/35}
			PTR	`ns3.dynu.com`
		A	162.251.164.146^{🇺🇸 DEDICATED-HIVE162.251.164.0/24 PNAP-LAX}
			PTR	`ns3.dynu.com`
NS	`ns4.dynu.com`
		A	2604:6600:2000:39::2^{🇺🇸 AS406762604:6600:2000::/48}
			PTR	`ns4.dynu.com`
		A	108.181.159.122^{🇺🇸 AS40676108.181.156.0/22}
			PTR	`ns4.dynu.com`
NS	`ns5.dynu.com`
		A	2605:9f80:c000:404::2^{🇺🇸 DEDICATED-HIVE2605:9f80:c000::/34 PNAP-NYM 63018}
			PTR	`ns5.dynu.com`
		A	216.105.169.98^{🇺🇸 DEDICATED-HIVE216.105.169.0/24 PNAP-LAX}
			PTR	`ns5.dynu.com`
NS	`ns6.dynu.com`
		A	2607:f8f8:631:8612::2^{🇺🇸 AS273232607:f8f8:600::/40}
			PTR	`ns6.dynu.com`
		A	173.0.55.138^{🇺🇸 AS27323173.0.55.0/24 Serverstadium - abuse@serverstadium.com}
			PTR	`ns6.dynu.com`
SOA	`ns1.dynu.com`administrator@dynu.com serial=42

`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=1783462576

Subdomains

sraz.u4server.com

vmbase.u4server.com

rodina.u4server.com

Same first word

u4server.net

u4server.com

Similar names

4userver.com

server4u.com

server4u.eu

server4u.co.il

server4u.sk

server4u.hu

server4u.de

server4u.ru

server4u.at

server4u.nl

urs4ever.com

server4u.gr

server4u.se

server4u.fr

serveur4.net

server4u.cz

server4u.pl

server4u.dk

DNS History

17 records (7 active, 10 former)

●NSns1.dynu.com2026-04-10 → 2026-07-07 · 3 obs

○ 2017-06-16 18:02:14
● 2026-04-10 16:13:14
● 2026-07-07 22:30:14

○NSns1.sitelutions.com2015-08-17 → 2017-06-16 · 4 obs

● 2015-08-17 13:45:20
● 2017-06-16 18:02:14
○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

●NSns2.dynu.com2026-04-10 → 2026-07-07 · 3 obs

○ 2017-06-16 18:02:14
● 2026-04-10 16:13:14
● 2026-07-07 22:30:14

○NSns2.sitelutions.com2015-08-17 → 2017-06-16 · 4 obs

● 2015-08-17 13:45:20
● 2017-06-16 18:02:14
○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

●NSns3.dynu.com2026-04-10 → 2026-07-07 · 3 obs

○ 2017-06-16 18:02:14
● 2026-04-10 16:13:14
● 2026-07-07 22:30:14

○NSns3.sitelutions.com2015-08-17 → 2017-06-16 · 4 obs

● 2015-08-17 13:45:20
● 2017-06-16 18:02:14
○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

●NSns4.dynu.com2026-04-10 → 2026-07-07 · 3 obs

○ 2017-06-16 18:02:14
● 2026-04-10 16:13:14
● 2026-07-07 22:30:14

○NSns4.sitelutions.com2015-08-17 → 2017-06-16 · 4 obs

● 2015-08-17 13:45:20
● 2017-06-16 18:02:14
○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

●NSns5.dynu.com2026-04-10 → 2026-07-07 · 3 obs

○ 2017-06-16 18:02:14
● 2026-04-10 16:13:14
● 2026-07-07 22:30:14

○NSns5.sitelutions.com2015-08-17 → 2017-06-16 · 4 obs

● 2015-08-17 13:45:20
● 2017-06-16 18:02:14
○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

●NSns6.dynu.com2026-04-10 → 2026-07-07 · 3 obs

○ 2017-06-16 18:02:14
● 2026-04-10 16:13:14
● 2026-07-07 22:30:14

○MXu4server.net2015-08-17 → 2017-06-16 · 4 obs

● 2015-08-17 13:45:20
● 2017-06-16 18:02:14
○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

○A45.36.78.442015-08-17 → 2015-08-17 · 3 obs

● 2015-08-17 13:45:20
○ 2015-12-10 19:12:54
○ 2026-07-07 22:30:14

○A45.36.79.2492015-12-10 → 2017-06-16 · 5 obs

○ 2015-08-17 13:45:20
● 2015-12-10 19:12:54
● 2017-06-16 18:02:14
○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

●A71.218.238.1682026-06-29 → 2026-07-07 · 3 obs

○ 2026-04-30 00:22:50
● 2026-06-29 17:47:22
● 2026-07-07 22:30:14

○A71.33.145.132026-04-10 → 2026-07-07 · 2 obs

○ 2026-04-10 16:13:14
○ 2026-07-07 22:30:14

○A71.33.159.1292026-04-10 → 2026-04-30 · 5 obs

○ 2017-06-16 18:02:14
● 2026-04-10 16:13:14
● 2026-04-30 00:22:50
○ 2026-06-29 17:47:22
○ 2026-07-07 22:30:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
u4server.com	ns1.dynu.com, ns2.dynu.com, ns3.dynu.com, ns4.dynu.com...	11 records

✅ Authoritative Response

Server:216.105.169.98

NS records: ns1.dynu.com, ns2.dynu.com, ns3.dynu.com, ns4.dynu.com, ns5.dynu.com, ns6.dynu.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for u4server.com (unsigned zone)

⏱️ Timing

Total: 171ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`71.218.238.168`
NS	6	`ns2.dynu.com, ns5.dynu.com...`
SOA	1	`ns1.dynu.com administrator.dynu.com`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.dynu.com, ns2.dynu.com, ns2.dynu.com...)

Analysis

Hierarchy

sraz.u4server.com, vmbase.u4server.com and rodina.u4server.com are all subdomains of u4server.com.

IP Addresses

u4server.com directs to one IP number, which is 71.218.238.168.

Among the host names that share IP numbers with u4server.com is rodina.u4server.com, as one example.

Name Servers

u4server.com carries NS records listing 6 name servers — ns1.dynu.com, ns2.dynu.com, ns3.dynu.com and 3 others.

The name servers of u4server.com overlap at least partially with those of other domains — among them webcamz.li, arbor-hills.org, agapedesignsllc.com and two more.

These name servers commonly appear in delegations together with ns4.dynu.com, ns5.dynu.com, ns6.dynu.com and 6 other.

Hosts with two IP numbers each:

The A records for ns2.dynu.com return 108.181.13.234 and 2602:ff23:0:8888::2.

The A records for ns3.dynu.com return 162.251.164.146 and 2605:9f80:4000:214::2.

The A records for ns4.dynu.com return 108.181.159.122 and 2604:6600:2000:39::2.

The A records for ns5.dynu.com return 216.105.169.98 and 2605:9f80:c000:404::2.

The A records for ns6.dynu.com return 173.0.55.138 and 2607:f8f8:631:8612::2.

Hosts that resolve to one IP address:

ns1.dynu.com resolves to the IP address 72.51.58.2.