serlo.lu - robtex.com

serlo.lu

DNSSEC⚠️ Not signed
NSanita.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2652🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanita.ns.cloudflare.com
A2803:f800:50::6ca2:c252🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRanita.ns.cloudflare.com
A2a06:98c1:50::ac40:2252🇺🇸 Cloudflare2a06:98c1:50::/45
PTRanita.ns.cloudflare.com
A108.162.194.82🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanita.ns.cloudflare.com
A162.159.38.82Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanita.ns.cloudflare.com
A172.64.34.82🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanita.ns.cloudflare.com
NSlewis.ns.cloudflare.com
A2606:4700:58::a29f:2c9f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlewis.ns.cloudflare.com
A2803:f800:50::6ca2:c39f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlewis.ns.cloudflare.com
A2a06:98c1:50::ac40:239f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlewis.ns.cloudflare.com
A108.162.195.159🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlewis.ns.cloudflare.com
A162.159.44.159Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlewis.ns.cloudflare.com
A172.64.35.159🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlewis.ns.cloudflare.com
MXmail.serlo.lu ⭐
A83.99.32.23🇱🇺 EPT-LU83.99.0.0/17 PT-LU
PTRip-83-99-32-23.dyn.luxdsl.pt.lu
TXT1|www.serlo.lu
TXTapple-domain=nn3uJKWhNuCFCUpw
TXTbrevo-code:23edeb47a8f4b0d2740469b8c74c144a
TXTgoogle-site-verification=BjbE29kh584EFfce03jWek8PMY3PLA-PZdBI_Wgm5Oo
TXTv=spf1 a mx a:mail.serlo.lu ~all
SOAanita.ns.cloudflare.comdns@cloudflare.com serial=2403144217

lu

DNSSEC🔒 Signed (DS record present)
NSns1.dns.lu ⭐
NSg.dns.lu
NSi.dns.lu
NSj.dns.lu
NSk.dns.lu
NSp.dns.lu
TXTExported: 2026-05-10 10:01:01
SOAns1.dns.lunoc@restena.lu serial=1778400073

Subdomains

mail.serlo.lu

Same first word

serlo.lu
serlo.org
serlo.dk

Similar names

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DNS History

3 records (3 active, 0 former)

NSanita.ns.cloudflare.comlewis.ns.cloudflare.comMXmail.serlo.lu
●NSanita.ns.cloudflare.com2026-04-20 → 2026-05-10 · 2 obs
● 2026-04-20 07:47:44
● 2026-05-10 08:25:32
●NSlewis.ns.cloudflare.com2026-04-20 → 2026-05-10 · 2 obs
● 2026-04-20 07:47:44
● 2026-05-10 08:25:32
●MXmail.serlo.lu2026-04-20 → 2026-05-10 · 2 obs
● 2026-04-20 07:47:44
● 2026-05-10 08:25:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
lug.dns.lu, i.dns.lu, j.dns.lu, k.dns.lu...12 records
serlo.lulewis.ns.cloudflare.com, anita.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.82

NS records: lewis.ns.cloudflare.com, anita.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for serlo.lu (unsigned zone)

⏱️ Timing

Total: 813ms | Queries: -

📄 Records

TypeCountSample Data
NS2anita.ns.cloudflare.com, lewis.ns.cloudflare.com
MX1mail.serlo.lu (pri: 10)
TXT51|www.serlo.lu, apple-domain=nn3uJKWhNuCFCUpw...
SOA1anita.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (g.dns.lu, g.dns.lu, i.dns.lu...)

Analysis

Hierarchy

serlo.lu is the parent of mail.serlo.lu.

Name Servers

serlo.lu is delegated to two name servers: anita.ns.cloudflare.com and lewis.ns.cloudflare.com.

serlo.lu shares the same name server setup as other domains, for example elpa.gr, bilkabg.com, hiclass.vn, otpbj.xyz and bulbul.net.

serlo.lu at least partially shares name servers with other domains, for instance konfita.tn, valbruna-stainless.com, remarka96.ru, caelangregory.com and themidwesterner.news.

These name servers are commonly used with the name servers bristol.ns.cloudflare.com.

Host names with six IP numbers:

anita.ns.cloudflare.com points to: 2606:4700:50::a29f:2652, 2803:f800:50::6ca2:c252, 2a06:98c1:50::ac40:2252, 108.162.194.82, 162.159.38.82 and 172.64.34.82; lewis.ns.cloudflare.com points to: 2606:4700:58::a29f:2c9f, 2803:f800:50::6ca2:c39f, 2a06:98c1:50::ac40:239f, 108.162.195.159, 162.159.44.159 and 172.64.35.159.

Mail Servers

serlo.lu is handled by a single mail server, mail.serlo.lu.

Host name mail.serlo.lu points to IP address 83.99.32.23.