biwer.lu - robtex.com

biwer.lu

DNSSEC⚠️ Not signed
A78.40.9.86🇫🇷 O2SWITCH78.40.8.0/22 o2switch Internet Routing
NSns1.pt.lu ⭐
A2001:7e8:8800::b0🇱🇺 EPT-LU2001:7e8::/32
PTRns1.pt.lu
A194.154.192.1🇱🇺 EPT-LU194.154.192.0/19 PT-LU
PTRns1.pt.lu
NSns2.pt.lu
A2001:7e8:8800::c0🇱🇺 EPT-LU2001:7e8::/32
PTRns2.pt.lu
A195.46.252.2🇱🇺 EPT-LU195.46.224.0/19 PT-LU
PTRns2.pt.lu
NSns3.pt.lu ⚠️ Not in parent delegation
A2001:1610:2:1::90🇱🇺 ASN-VO2001:1610::/32 Visual Online S.A. Internet IP space E-Mail: noc@vo.lu
PTRns3.pt.lu
A80.90.63.90🇱🇺 ASN-VO80.90.32.0/19 Visual Online S.A. Internet IP space E-Mail: noc@vo.lu
PTRns3.pt.lu
MXbiwer-lu.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db3pr0202cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca04::8🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db5pr02cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca04::e🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db8pr02cu00106.inbound.protection.outlook.com
A2a01:111:f403:ca09::3🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am6pr04cu00303.inbound.protection.outlook.com
A52.101.68.12🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db9pr02cu00204.inbound.protection.outlook.com
A52.101.68.25🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db8pr02cu00101.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
A52.101.73.22🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00106.inbound.protection.outlook.com
TXTv=spf1 ip4:109.234.166.86 include:spf.protection.outlook.com -all
SOAns1.pt.luhostmaster@ns1.pt.lu 2026-03-05 #0

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 10:01:01
SOA1.ns.lunoc@restena.lu serial=1783756872
WOT: SAFE (61/100)

Same first word

biwer.cn
biwer.net
biwer.com
biwer.de
biwer.lu
biwer.pl

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DNS History

7 records (5 active, 2 former)

20162017201820192020202120222023202420252026NSns1.pt.luns2.pt.luns3.pt.luMXbiwer-lu.mail.protection.outlook.commail.biwer.luA78.40.9.8631.22.121.20
●NSns1.pt.lu2015-08-18 → 2026-07-11 · 2 obs
● 2015-08-18 01:20:40
● 2026-07-11 09:11:46
●NSns2.pt.lu2015-08-18 → 2026-07-11 · 2 obs
● 2015-08-18 01:20:40
● 2026-07-11 09:11:46
●NSns3.pt.lu2015-08-18 → 2026-07-11 · 2 obs
● 2015-08-18 01:20:40
● 2026-07-11 09:11:46
●MXbiwer-lu.mail.protection.outlook.com2026-06-07 → 2026-07-11 · 3 obs
○ 2016-05-18 02:06:58
● 2026-06-07 23:23:08
● 2026-07-11 09:11:46
○MXmail.biwer.lu2015-08-18 → 2016-05-18 · 4 obs
● 2015-08-18 01:20:40
● 2016-05-18 02:06:58
○ 2026-06-07 23:23:08
○ 2026-07-11 09:11:46
○A31.22.121.202015-08-18 → 2016-05-18 · 4 obs
● 2015-08-18 01:20:40
● 2016-05-18 02:06:58
○ 2026-06-07 23:23:08
○ 2026-07-11 09:11:46
●A78.40.9.862026-06-07 → 2026-07-11 · 3 obs
○ 2016-05-18 02:06:58
● 2026-06-07 23:23:08
● 2026-07-11 09:11:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
lu1.ns.lu, g.dns.lu, i.dns.lu, j.dns.lu...14 records
biwer.luns1.pt.lu, ns2.pt.lu4 records

✅ Authoritative Response

Server:194.154.192.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for biwer.lu (unsigned zone)

⏱️ Timing

Total: 717ms | Queries: -

📄 Records

TypeCountSample Data
A178.40.9.86
NS3ns1.pt.lu, ns3.pt.lu...
MX1biwer-lu.mail.protection.outlook.com (pr
TXT1v=spf1 ip4:109.234.166.86 include:spf.pr
SOA1ns1.pt.lu hostmaster.ns1.pt.lu

📌 Glue Records Collected

Total: 18

In-bailiwick: 14 (1.ns.lu, g.dns.lu, i.dns.lu...)

Out-of-bailiwick: 4 (ns2.pt.lu, ns2.pt.lu, ns1.pt.lu...)

Analysis

IP Addresses

biwer.lu directs to one IP number, which is 78.40.9.86.

Among the host names that share IP numbers with biwer.lu are elyon.fr, masquedeski.eu, heureux-qui.com and two others.

Name Servers

biwer.lu is delegated to three name servers: ns1.pt.lu, ns2.pt.lu and ns3.pt.lu.

The name servers of biwer.lu overlap at least partially with those of other domains — among them gastonklares.com, 240.135.213.in-addr.arpa, volkswagennutzfahrzeuge.lu and two more.

The name servers nswh1.pt.lu, nswh2.pt.lu and ns1.foyer.lu are commonly seen alongside these name servers.

ns1.pt.lu, ns2.pt.lu and ns3.pt.lu each resolve to two IP addresses: ns1.pt.lu resolves to 194.154.192.1 and 2001:7e8:8800::b0; ns2.pt.lu resolves to 195.46.252.2 and 2001:7e8:8800::c0; ns3.pt.lu resolves to 80.90.63.90 and 2001:1610:2:1::90.

Mail Servers

biwer.lu routes its mail through a single mail server, biwer-lu.mail.protection.outlook.com.

biwer-lu.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.68.12, 52.101.68.25 and 52.101.73.4, along with 5 other.