refu.tech - dns.ninja

refu.tech

DNSSEC⚠️ Not signed
A89.31.143.90🇩🇪 UDAG89.31.143.0/24
NSns.udag.de ⭐
A2001:8d8:fe:53:217:160:80:253🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns.udag.de
A217.160.80.253🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns.udag.de
NSns.udag.net
A2607:f1c0:fe:53:185:132:33:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns.udag.net
A185.132.33.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns.udag.net
NSns.udag.org
A2607:f1c0:fe:53:185:132:34:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns.udag.org
A185.132.34.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns.udag.org
MXmx00.udag.de ⭐
A62.146.106.39🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH
PTRmx00.udag.de
MXmx01.udag.de(20)
A62.146.106.40🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH
PTRmx01.udag.de
TXTv=spf1 include:_smtp.udag.de ~all
TXTMS=ms67737915
SOAns.udag.dehostmaster@united-domains.de 2023-12-14 #2

tech

DNSSEC🔒 Signed (DS record present)
NSns01.trs-dns.com ⭐
NSns.trs-dns.com
NSns01.trs-dns.net
NSns10.trs-dns.info
NSns10.trs-dns.org
SOAns.trs-dns.comtrs-ops@tucows.com serial=1784883846

Subdomains

mail.refu.tech

Same first word

refu.nl
refu.es
refu.tech
refu.it
refu.ru
refu.ro

Similar names

efru.net
fure.no
eurf.com
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fure.dk
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erfu.de
fure.org
feru.com
frue.jp
fuer.es
rfue.cn
freu.it
ruef.ru
uefr.com
feru.co

DNS History

10 records (6 active, 4 former)

20192020202120222023202420252026NSns.udag.dens.udag.netns.udag.orgpdns01.domaincontrol.compdns02.domaincontrol.comMXmx00.udag.demx01.udag.demail.refu.techA89.31.143.90107.180.4.10
●NSns.udag.de2026-03-14 → 2026-07-24 · 3 obs
○ 2018-12-21 04:06:04
● 2026-03-14 09:02:06
● 2026-07-24 09:20:40
●NSns.udag.net2026-03-14 → 2026-07-24 · 3 obs
○ 2018-12-21 04:06:04
● 2026-03-14 09:02:06
● 2026-07-24 09:20:40
●NSns.udag.org2026-03-14 → 2026-07-24 · 3 obs
○ 2018-12-21 04:06:04
● 2026-03-14 09:02:06
● 2026-07-24 09:20:40
○NSpdns01.domaincontrol.com2018-12-21 → 2018-12-21 · 3 obs
● 2018-12-21 04:06:04
○ 2026-03-14 09:02:06
○ 2026-07-24 09:20:40
○NSpdns02.domaincontrol.com2018-12-21 → 2018-12-21 · 3 obs
● 2018-12-21 04:06:04
○ 2026-03-14 09:02:06
○ 2026-07-24 09:20:40
○MXmail.refu.tech2018-12-21 → 2018-12-21 · 3 obs
● 2018-12-21 04:06:04
○ 2026-03-14 09:02:06
○ 2026-07-24 09:20:40
●MXmx00.udag.de2026-03-14 → 2026-07-24 · 3 obs
○ 2018-12-21 04:06:04
● 2026-03-14 09:02:06
● 2026-07-24 09:20:40
●MXmx01.udag.de2026-03-14 → 2026-07-24 · 3 obs
○ 2018-12-21 04:06:04
● 2026-03-14 09:02:06
● 2026-07-24 09:20:40
○A107.180.4.102018-12-21 → 2018-12-21 · 3 obs
● 2018-12-21 04:06:04
○ 2026-03-14 09:02:06
○ 2026-07-24 09:20:40
●A89.31.143.902026-03-14 → 2026-07-24 · 3 obs
○ 2018-12-21 04:06:04
● 2026-03-14 09:02:06
● 2026-07-24 09:20:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
techns01.trs-dns.net, ns01.trs-dns.com, ns10.trs-dns.info, ns10.trs-dns.org-
refu.techns.udag.de, ns.udag.org, ns.udag.net-

✅ Authoritative Response

Server:185.132.34.253

NS records: ns.udag.de, ns.udag.org, ns.udag.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for refu.tech (unsigned zone)

⏱️ Timing

Total: 282ms | Queries: -

📄 Records

TypeCountSample Data
A189.31.143.90
NS3ns.udag.net, ns.udag.de...
MX2mx01.udag.de (pri: 20), mx00.udag.de (pri: 10)
TXT2v=spf1 include:_smtp.udag.de ~all, MS=ms67737915
SOA1ns.udag.de hostmaster.united-domains.de

Analysis

Hierarchy

mail.refu.tech is delegated beneath refu.tech.

IP Addresses

refu.tech has exactly one IP address — 89.31.143.90.

artandit.org, highcare.eu, cocare.de plus two other host names have IP numbers in common with refu.tech.

Name Servers

refu.tech carries NS records delegating to ns.udag.de, ns.udag.net and ns.udag.org.

There is at least partial name server overlap between refu.tech and other domains — newzeit.com, konkaapps.com, sgk-login.de and two more among them.

ns.udag.de, ns.udag.net and ns.udag.org are three hostnames that each resolve to a pair of IP addresses: ns.udag.de to 217.160.80.253 and 2001:8d8:fe:53:217:160:80:253, ns.udag.net to 185.132.33.253 and 2607:f1c0:fe:53:185:132:33:253, and ns.udag.org to 185.132.34.253 and 2607:f1c0:fe:53:185:132:34:253.

Mail Servers

refu.tech uses two mail servers, mx00.udag.de and mx01.udag.de.

The mail server setup of refu.tech matches that of other domains such as motorsaegenforum.de, lbm-ltd.de, girl6.de and two others.

mx00.udag.de → 62.146.106.39 and mx01.udag.de → 62.146.106.40: one IP number per host name.