kaerjeng.lu - robtex.com

kaerjeng.lu

DNSSECโš ๏ธ Not signed
A2a0b:c700:1:443::2๐Ÿ‡ฑ๐Ÿ‡บ HOTCITY2a0b:c700::/29
PTRwww.kaerjeng.lu
A185.250.19.2๐Ÿ‡ฑ๐Ÿ‡บ HOTCITY185.250.16.0/22
NSns1.hotcity.lu โญ
A2001:19f0:6c01:c60:5400:4ff:fecc:fd7a๐Ÿ‡ฉ๐Ÿ‡ช AS-VULTR2001:19f0:6c00::/38 Vultr Assigned Prefix
PTRns01.hotcity.lu
A45.32.157.240๐Ÿ‡ฉ๐Ÿ‡ช AS-VULTR45.32.152.0/21 Vultr Assigned Prefix
PTRns1.hotcity.lu
NSns2.hotcity.lu
A2001:41d0:304:200::4c15๐Ÿ‡ซ๐Ÿ‡ท OVH2001:41d0::/32 IPv6
PTRns2.hotcity.lu
A51.38.227.136๐Ÿ‡ซ๐Ÿ‡ท OVH51.38.0.0/16
PTRns2.hotcity.lu
MXkaerjeng-lu.mail.protection.outlook.com โญ
A2a01:111:f403:ca04::4๐Ÿ‡ฎ๐Ÿ‡ช Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00204.inbound.protection.outlook.com
A2a01:111:f403:ca04::7๐Ÿ‡ฎ๐Ÿ‡ช Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00307.inbound.protection.outlook.com
A2a01:111:f403:ca04::10๐Ÿ‡ฎ๐Ÿ‡ช Microsoft2a01:111:f000::/36
PTRmail-dbapr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::2๐Ÿ‡ณ๐Ÿ‡ฑ Microsoft2a01:111:f000::/36
PTRmail-am0pr83cu00402.inbound.protection.outlook.com
A52.101.68.8๐Ÿ‡ฎ๐Ÿ‡ช Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du0pr03cu00100.inbound.protection.outlook.com
A52.101.68.27๐Ÿ‡ฎ๐Ÿ‡ช Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00503.inbound.protection.outlook.com
A52.101.68.36๐Ÿ‡ฎ๐Ÿ‡ช Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db5pr02cu00104.inbound.protection.outlook.com
A52.101.73.12๐Ÿ‡ณ๐Ÿ‡ฑ Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am4pr0401cu00104.inbound.protection.outlook.com
TXTMS=ms13176203
TXTv=spf1 mx ptr include:spf.protection.outlook.com include:spf-de.emailsignatur...
SOAns1.hotcity.luabuse@hotcity.lu 2026-02-25 #1

lu

DNSSEC๐Ÿ”’ Signed (DS record present)
NSns1.dns.lu โญ
NSg.dns.lu
NSi.dns.lu
NSj.dns.lu
NSk.dns.lu
NSp.dns.lu
TXTExported: 2026-04-14 01:01:02
SOAns1.dns.lunoc@restena.lu serial=1776121273
WOT: SAFE (72/100)

Subdomains

Same first word

Similar names

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSns1.hotcity.luns2.hotcity.luns1.pt.luns2.pt.luns3.pt.luMXkaerjeng-lu.mail.protection.outlook.commail.kaerjeng.luA185.250.19.22a0b:c700:1:443::2
โ—NSns1.hotcity.lu2026-03-13 โ†’ 2026-04-14 ยท 3 obs
โ—‹ 2017-03-28 18:12:12
โ— 2026-03-13 12:34:20
โ— 2026-04-14 00:00:26
โ—‹NSns1.pt.lu2015-06-26 โ†’ 2017-03-28 ยท 4 obs
โ— 2015-06-26 04:44:26
โ— 2017-03-28 18:12:12
โ—‹ 2026-03-13 12:34:20
โ—‹ 2026-04-14 00:00:26
โ—NSns2.hotcity.lu2026-03-13 โ†’ 2026-04-14 ยท 3 obs
โ—‹ 2017-03-28 18:12:12
โ— 2026-03-13 12:34:20
โ— 2026-04-14 00:00:26
โ—‹NSns2.pt.lu2015-06-26 โ†’ 2017-03-28 ยท 4 obs
โ— 2015-06-26 04:44:26
โ— 2017-03-28 18:12:12
โ—‹ 2026-03-13 12:34:20
โ—‹ 2026-04-14 00:00:26
โ—‹NSns3.pt.lu2015-06-26 โ†’ 2017-03-28 ยท 6 obs
โ— 2015-06-26 04:44:26
โ— 2016-02-07 13:58:18
โ—‹ 2016-05-11 06:01:00
โ— 2017-03-28 18:12:12
โ—‹ 2026-03-13 12:34:20
โ—‹ 2026-04-14 00:00:26
โ—MXkaerjeng-lu.mail.protection.outlook.com2026-03-13 โ†’ 2026-04-14 ยท 3 obs
โ—‹ 2017-03-28 18:12:12
โ— 2026-03-13 12:34:20
โ— 2026-04-14 00:00:26
โ—‹MXmail.kaerjeng.lu2015-06-26 โ†’ 2017-03-28 ยท 4 obs
โ— 2015-06-26 04:44:26
โ— 2017-03-28 18:12:12
โ—‹ 2026-03-13 12:34:20
โ—‹ 2026-04-14 00:00:26
โ—A185.250.19.22026-03-13 โ†’ 2026-04-14 ยท 2 obs
โ— 2026-03-13 12:34:20
โ— 2026-04-14 00:00:26
โ—A2a0b:c700:1:443::22026-03-13 โ†’ 2026-04-14 ยท 2 obs
โ— 2026-03-13 12:34:20
โ— 2026-04-14 00:00:26

๐Ÿ” DNS Trace

๐Ÿ“‹ Delegation Chain

ZoneNameserversGlue
lug.dns.lu, i.dns.lu, j.dns.lu, k.dns.lu...-
kaerjeng.luns2.hotcity.lu, ns1.hotcity.lu4 records

โœ… Authoritative Response

Server:45.32.157.240

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

๐Ÿ”’ DNSSEC Status

โš ๏ธ Insecure (no DNSSEC)

No DS record for kaerjeng.lu (unsigned zone)

โฑ๏ธ Timing

Total: 559ms | Queries: -

๐Ÿ“„ Records

TypeCountSample Data
A1185.250.19.2
AAAA12a0b:c700:1:443::2
NS2ns2.hotcity.lu, ns1.hotcity.lu
MX1kaerjeng-lu.mail.protection.outlook.com
TXT2v=spf1 mx ptr include:spf.protection.out, MS=ms13176203
SOA1ns1.hotcity.lu abuse.hotcity.lu

๐Ÿ“Œ Glue Records Collected

Total: 4

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

Analysis

Hierarchy

kaerjeng.lu is parent of mail.kaerjeng.lu and www.kaerjeng.lu.

IP Addresses

kaerjeng.lu resolves to two IPs: 2a0b:c700:1:443::2 and 185.250.19.2.

Other host names, for instance www.bascharage.lu, bascharage.lu and www.kaerjeng.lu share IP numbers with kaerjeng.lu.

Name Servers

kaerjeng.lu is delegated to two name servers: ns1.hotcity.lu and ns2.hotcity.lu.

kaerjeng.lu shares the same name server setup as other domains, such as 17.250.185.in-addr.arpa, 19.250.185.in-addr.arpa, bascharage.lu and mertzig.lu.

kaerjeng.lu partially shares name servers with other domains, for instance hotcity.lu, easywifi.lu, citywifi.lu and hotcity.eu.

These name servers are commonly used with the name servers puck.nether.net.

Host names with two IP numbers:

ns1.hotcity.lu points to 2001:19f0:6c01:c60:5400:4ff:fecc:fd7a and 45.32.157.240

ns2.hotcity.lu points to 2001:41d0:304:200::4c15 and 51.38.227.136

Mail Servers

kaerjeng.lu is handled by a single mail server, kaerjeng-lu.mail.protection.outlook.com.

Host name kaerjeng-lu.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::4, 2a01:111:f403:ca04::7, 2a01:111:f403:ca04::10, 2a01:111:f403:ca09::2, 52.101.68.8, 52.101.68.27, 52.101.68.36 and 52.101.73.12.