studyfox.lu - dns.ninja

studyfox.lu

DNSSEC⚠️ Not signed
A195.24.73.60🇱🇺 ROOT195.24.72.0/21 root SA
PTRmail.studyfox.lu
NSns2.root.lu
A83.243.8.3🇱🇺 ROOT83.243.8.0/21 root SA
PTRb.root.lu
NSns1.root.lu
A2a01:608::3🇱🇺 ROOT2a01:608::/32 root SA
PTRa.root.lu
A195.26.4.3🇱🇺 ROOT195.26.4.0/23 root SA
PTRa.root.lu
MXmx.spamexperts.com
A2001:978:2:7::162:100🇩🇪 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH
PTRfe1-r3-in.fra02.l.antispamcloud.com
A149.13.75.27🇩🇪 AS16633149.13.75.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH
PTRfe1-r3-in.fra02.l.antispamcloud.com
MXfallbackmx.spamexperts.eu(20)
A2001:978:2:6::f:124🇩🇪 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH
PTRfe3-r3-in.du01.l.antispamcloud.com
A2001:978:2:7::162:100🇩🇪 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH
PTRfe1-r3-in.fra02.l.antispamcloud.com
A2001:978:2:2c::137:100🇳🇱 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH
PTRfe2-r3-in.ams14.l.antispamcloud.com
A149.13.75.27🇩🇪 AS16633149.13.75.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH
PTRfe1-r3-in.fra02.l.antispamcloud.com
A154.59.104.23🇳🇱 COGENT154.59.104.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH
PTRfe2-r3-in.ams14.l.antispamcloud.com
A154.59.193.124🇩🇪 AS16633154.59.193.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH
PTRfe3-r3-in.du01.l.antispamcloud.com
MXlastmx.spamexperts.net(30)
A2001:550:2:3::62:100🇺🇸 COGENT2001:550::/32 Cogent Communications
PTRfe2-r2-in.la10.l.antispamcloud.com
A2001:550:2:61::2fc:100🇺🇸 COGENT2001:550::/32 Cogent Communications
A2001:978:2:7::162:100🇩🇪 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH
PTRfe1-r3-in.fra02.l.antispamcloud.com
A2001:978:2:2c::137:100🇳🇱 COGENT2001:978::/32 C.C.D. Cogent Communications Deutschland GmbH
PTRfe2-r3-in.ams14.l.antispamcloud.com
A38.71.16.244🇺🇸 AS1663338.71.16.0/24
PTRfe2-r2-in.la10.l.antispamcloud.com
A38.89.254.156🇺🇸 AS1663338.89.254.0/23
PTRfe1-r2-in.ch03.l.antispamcloud.com
A149.13.75.27🇩🇪 AS16633149.13.75.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH
PTRfe1-r3-in.fra02.l.antispamcloud.com
A154.59.104.23🇳🇱 COGENT154.59.104.0/24 Registered for Cogent Communications Customer - N-ABLE CLOUD GMBH
PTRfe2-r3-in.ams14.l.antispamcloud.com
TXTMS=ms44666399
TXTgoogle-site-verification=klR-TmcGB-bRirQCuZXqFzeUTDqv6ezxfd4H_v__QyU
TXTv=spf1 mx a ip4:94.242.251.13/32 include:studyfox.fr include:studyfox.eu incl...
SOAns2.root.lurootuser@studyfox.lu 2026-07-11 #32

lu

DNSSEC🔒 Signed (DS record present)
NS1.ns.lu
NSg.dns.lu
NSi.dns.lu
NSj.dns.lu
NSk.dns.lu
NSp.dns.lu
NSr.ns.lu
TXTExported: 2026-07-11 14:01:01
SOA1.ns.lunoc@restena.lu serial=1783771272

Subdomains

Same first word

Similar names

DNS History

8 records (6 active, 2 former)

20192020202120222023202420252026NSns1.root.luns2.root.luMXfallbackmx.spamexperts.eulastmx.spamexperts.netmx.spamexperts.commail.studyfox.luA195.24.73.6094.242.251.13
NSns1.root.lu2018-05-10 → 2026-07-11 · 2 obs
● 2018-05-10 01:56:32
● 2026-07-11 13:11:22
NSns2.root.lu2018-05-10 → 2026-07-11 · 2 obs
● 2018-05-10 01:56:32
● 2026-07-11 13:11:22
MXfallbackmx.spamexperts.eu2026-02-20 → 2026-07-11 · 3 obs
○ 2018-05-10 01:56:32
● 2026-02-20 21:35:26
● 2026-07-11 13:11:22
MXlastmx.spamexperts.net2026-02-20 → 2026-07-11 · 3 obs
○ 2018-05-10 01:56:32
● 2026-02-20 21:35:26
● 2026-07-11 13:11:22
MXmail.studyfox.lu2018-05-10 → 2018-05-10 · 3 obs
● 2018-05-10 01:56:32
○ 2026-02-20 21:35:26
○ 2026-07-11 13:11:22
MXmx.spamexperts.com2026-02-20 → 2026-07-11 · 3 obs
○ 2018-05-10 01:56:32
● 2026-02-20 21:35:26
● 2026-07-11 13:11:22
A195.24.73.602026-02-20 → 2026-07-11 · 3 obs
○ 2018-05-10 01:56:32
● 2026-02-20 21:35:26
● 2026-07-11 13:11:22
A94.242.251.132018-05-10 → 2018-05-10 · 3 obs
● 2018-05-10 01:56:32
○ 2026-02-20 21:35:26
○ 2026-07-11 13:11:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
lu1.ns.lu, g.dns.lu, i.dns.lu, j.dns.lu...-
studyfox.luns1.root.lu, ns2.root.lu-

✅ Authoritative Response

Server:83.243.8.3

NS records: ns1.root.lu, ns2.root.lu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyfox.lu (unsigned zone)

⏱️ Timing

Total: 1399ms | Queries: -

📄 Records

TypeCountSample Data
A1195.24.73.60
NS2ns2.root.lu, ns1.root.lu
MX3fallbackmx.spamexperts.eu (pri: 20), lastmx.spamexperts.net (pri: 30)...
TXT3google-site-verification=klR-TmcGB-bRirQ, v=spf1 mx a ip4:94.242.251.13/32 include...
SOA1ns2.root.lu rootuser.studyfox.lu

Analysis

Hierarchy

mail.studyfox.lu is a subdomain of studyfox.lu.

IP Addresses

studyfox.lu resolves to just one IP address, 195.24.73.60.

There are other host names — mail.studyfox.lu among them — that share IP numbers with studyfox.lu.

Name Servers

DNS delegation for studyfox.lu points to two name servers: ns1.root.lu and ns2.root.lu.

studyfox.lu shares its NS records with other domains, for example familylab.lu, netlance.com, agp.lu and two others.

The name servers of studyfox.lu overlap at least partially with those of other domains — among them gwebb.com, planproject.lu, muller.lu and two more.

These name servers commonly appear in combination with the name servers alpha.ns.network.lu.

Host names that have two IP addresses:

ns1.root.lu has two IP addresses: 195.26.4.3 and 2a01:608::3.

Host names that point to one IP address:

ns2.root.lu directs to 83.243.8.3.

Mail Servers

Mail for studyfox.lu is routed through three mail servers — mx.spamexperts.com, fallbackmx.spamexperts.eu and lastmx.spamexperts.net.

There is at least a partial MX overlap between studyfox.lu and other domains, including makkum.nl, sert.us, gethost.nl and two others.

DNS names with 8 IP addresses:

lastmx.spamexperts.net has IP addresses 38.71.16.244, 38.89.254.156 and 149.13.75.27, plus 5 other.

DNS names with 6 IP addresses:

fallbackmx.spamexperts.eu has IP addresses 149.13.75.27, 154.59.104.23 and 154.59.193.124, plus 3 other.

Host names that have two IP addresses:

mx.spamexperts.com has two IP addresses: 149.13.75.27 and 2001:978:2:7::162:100.

Each of lastmx.spamexperts.net, fallbackmx.spamexperts.eu and mx.spamexperts.com resolves to 2001:978:2:7::162:100.

Host names pointing to 2001:978:2:2c::137:100 IP addresses: lastmx.spamexperts.net and fallbackmx.spamexperts.eu.

Each of lastmx.spamexperts.net, fallbackmx.spamexperts.eu and mx.spamexperts.com resolves to 149.13.75.27.

Host names pointing to 154.59.104.23 IP addresses: lastmx.spamexperts.net and fallbackmx.spamexperts.eu.