DNS audit for nmuller.lu created on 2026-06-04 00:32:13

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1. Name servers

Name servers listed at the parent server j.dns.lu:

ns1.root.lu
ns2.root.lu

Result: 2 name servers found at the parent server (set at the domain provider).
Recommendation: Everything is okay. There is more than one name server added to nmuller.lu.

2. NS records

NS records returned by each name server configured for the domain name

San Francisco, US Sydney, AU Johannesburg, ZA

ns1.root.lu [195.26.4.3] (154ms):
ns71.cloudns.net
ns72.cloudns.com
ns73.cloudns.net
ns74.cloudns.uk

ns2.root.lu [83.243.8.3] (155ms):
ns71.cloudns.net
ns72.cloudns.com
ns73.cloudns.net
ns74.cloudns.uk

ns1.root.lu [195.26.4.3] (251ms):
ns71.cloudns.net
ns72.cloudns.com
ns73.cloudns.net
ns74.cloudns.uk

ns2.root.lu [83.243.8.3] (248ms):
ns71.cloudns.net
ns72.cloudns.com
ns73.cloudns.net
ns74.cloudns.uk

ns1.root.lu [195.26.4.3] (176ms):
ns71.cloudns.net
ns72.cloudns.com
ns73.cloudns.net
ns74.cloudns.uk

ns2.root.lu [83.243.8.3] (176ms):
ns71.cloudns.net
ns72.cloudns.com
ns73.cloudns.net
ns74.cloudns.uk

Result: The NS records returned by the DNS servers are not the same as the name servers set at the parent server.
Recommendation: Check the synchronization between the DNS servers. Returned NS records must be exactly the same as these returned by the parent server.

3. SOA record

SOA record returned by each name server configured for the domain name

San Francisco, US

ns1.root.lu [195.26.4.3] (151ms):
ns1.root.lu. admin.root.lu. 1780443241 10800 1800 3024000 3600

ns2.root.lu [83.243.8.3] (154ms):
ns1.root.lu. admin.root.lu. 1780443241 10800 1800 3024000 3600

Sydney, AU

ns1.root.lu [195.26.4.3] (248ms):
ns1.root.lu. admin.root.lu. 1780522321 10800 1800 3024000 3600

ns2.root.lu [83.243.8.3] (251ms):
ns1.root.lu. admin.root.lu. 1780443241 10800 1800 3024000 3600

Johannesburg, ZA

ns1.root.lu [195.26.4.3] (172ms):
ns1.root.lu. admin.root.lu. 1780522321 10800 1800 3024000 3600

ns2.root.lu [83.243.8.3] (176ms):
ns1.root.lu. admin.root.lu. 1780443241 10800 1800 3024000 3600

Result: The SOA record returned by the name servers is not the same on all of them.
Recommendation: Check the synchronization between the DNS servers. Returned SOA record must be exactly the same on all DNS servers.

4. A record distribution by location for nmuller.lu

Shows how the name servers respond to requests for nmuller.lu

San Francisco, US Sydney, AU Johannesburg, ZA

ns1.root.lu [195.26.4.3] (353ms):
195.26.5.2

ns2.root.lu [83.243.8.3] (154ms):
195.26.5.2

ns1.root.lu [195.26.4.3] (249ms):

ns2.root.lu [83.243.8.3] (251ms):
195.26.5.2

ns1.root.lu [195.26.4.3] (172ms):

ns2.root.lu [83.243.8.3] (172ms):
195.26.5.2

5. A record distribution by location for www.nmuller.lu

Shows how the name servers respond to requests for www.nmuller.lu

San Francisco, US Sydney, AU Johannesburg, ZA

ns1.root.lu [195.26.4.3] (153ms):
195.26.5.2

ns2.root.lu [83.243.8.3] (154ms):
195.26.5.2

ns1.root.lu [195.26.4.3] (248ms):
195.26.5.2

ns2.root.lu [83.243.8.3] (247ms):
195.26.5.2

ns1.root.lu [195.26.4.3] (176ms):
195.26.5.2

ns2.root.lu [83.243.8.3] (172ms):
195.26.5.2

6. Speed

Result: During the checks in the previous steps, multiple DNS requests were executed to the name servers responsible for the domain name. Average response time of the name servers is 208.92ms.
Recommendation: The name servers respond slow. Try moving to an Anycast DNS service in order to speed up the resolution of the domain name and first page load of the web site.

Previous reports for nmuller.lu: 2026-06-03 02:39:53 , 2026-06-03 02:32:46 , 2026-05-29 01:38:08
Newer reports for nmuller.lu: 2026-06-04 01:29:59 , 2026-06-04 01:34:57 , 2026-06-04 02:58:10 , 2026-06-04 20:01:57
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