u4math.com - dns.ninja

u4math.com

DNSSEC⚠️ Not signed
A2a02:2350:5:102:1a:301:46ab:517d🇩🇰 ONECOM2a02:2350::/32 One.com A/S
A77.111.240.131🇩🇰 ONECOM77.111.240.0/22 One.com A/S
NSns01.one.com ⭐
A2001:67c:28cc::10ONECOM-INFRA2001:67c:28cc::/48
PTRns01.one.com
A195.206.121.10ONECOM-INFRA195.206.121.0/24
PTRns01.one.com
NSns02.one.com
A2001:67c:3c0::10🇩🇰 ONECOM2001:67c:3c0::/48
PTRns02.one.com
A185.10.11.10ONECOM185.10.11.0/24
PTRns02.one.com
SOAns01.one.comhostmaster@one.com 2026-07-28 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786010379

Same first word

u4math.org
u4math.com

Similar names

math4u.kr
math4u.de
math4u.com
math4u.it
math4u.co.kr
math4u.ca
math4u.net
math4u.org

DNS History

9 records (4 active, 5 former)

20162017201820192020202120222023202420252026NSns01.one.comns02.one.comns45.domaincontrol.comns46.domaincontrol.comMXmailstore1.europe.secureserver.netsmtp.europe.secureserver.netA2a02:2350:5:102:1a:301:46ab:517d77.111.240.131188.121.41.118
●NSns01.one.com2026-07-14 → 2026-08-06 · 3 obs
○ 2017-04-07 14:37:10
● 2026-07-14 19:51:14
● 2026-08-06 10:17:10
●NSns02.one.com2026-07-14 → 2026-08-06 · 3 obs
○ 2017-04-07 14:37:10
● 2026-07-14 19:51:14
● 2026-08-06 10:17:10
○NSns45.domaincontrol.com2015-08-16 → 2017-04-07 · 4 obs
● 2015-08-16 19:55:32
● 2017-04-07 14:37:10
○ 2026-07-14 19:51:14
○ 2026-08-06 10:17:10
○NSns46.domaincontrol.com2015-08-16 → 2017-04-07 · 4 obs
● 2015-08-16 19:55:32
● 2017-04-07 14:37:10
○ 2026-07-14 19:51:14
○ 2026-08-06 10:17:10
○MXmailstore1.europe.secureserver.net2015-08-16 → 2017-04-07 · 4 obs
● 2015-08-16 19:55:32
● 2017-04-07 14:37:10
○ 2026-07-14 19:51:14
○ 2026-08-06 10:17:10
○MXsmtp.europe.secureserver.net2015-08-16 → 2017-04-07 · 4 obs
● 2015-08-16 19:55:32
● 2017-04-07 14:37:10
○ 2026-07-14 19:51:14
○ 2026-08-06 10:17:10
○A188.121.41.1182015-08-16 → 2017-04-07 · 4 obs
● 2015-08-16 19:55:32
● 2017-04-07 14:37:10
○ 2026-07-14 19:51:14
○ 2026-08-06 10:17:10
●A2a02:2350:5:102:1a:301:46ab:517d2026-07-14 → 2026-08-06 · 3 obs
○ 2017-04-07 14:37:10
● 2026-07-14 19:51:14
● 2026-08-06 10:17:10
●A77.111.240.1312026-07-14 → 2026-08-06 · 3 obs
○ 2017-04-07 14:37:10
● 2026-07-14 19:51:14
● 2026-08-06 10:17:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net...-
u4math.comns01.one.com, ns02.one.com4 records

✅ Authoritative Response

Server:185.10.11.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 382ms | Queries: -

📄 Records

TypeCountSample Data
A177.111.240.131
AAAA12a02:2350:5:102:1a:301:46ab:517d
NS2ns01.one.com, ns02.one.com
MX1. (pri: 0)
SOA1ns01.one.com hostmaster.one.com

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns01.one.com, ns01.one.com, ns02.one.com...)

Analysis

IP Addresses

u4math.com points to the IP addresses 77.111.240.131 and 2a02:2350:5:102:1a:301:46ab:517d

consgero.com, pluto23.nl, tenudge.eu and two other host names share IP numbers with u4math.com.

Name Servers

DNS delegation for u4math.com points to two name servers: ns01.one.com and ns02.one.com.

u4math.com uses the same name servers as several other domains — among them vlstaal.de, thecomputer.dk, ozom.dk and two more.

ns01.one.com directs to 195.206.121.10 and 2001:67c:28cc::10. ns02.one.com directs to 185.10.11.10 and 2001:67c:3c0::10. Each host name carries two IP addresses.