DNS report for restena.lu

This report was generated 3 weeks ago. Refresh?
A+
Connectivity
100%
Performance
91%
Resilience & Security
100%
DNS records
100%
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Connectivity: 100%

The following nameservers are available and responding correctly for DNS queries for your domain restena.lu.

Nameserver IP address(es) SOA serial
ns1.restena.lu. 158.64.1.23
2001:a18:1::23
1556326447
ns2.restena.lu. 145.100.190.186
2001:610:188:406:145:100:190:186
1556326447
ns3.restena.lu. 158.64.12.45
2001:a18:6:2::45
1556326447
ns9.restena.lu. 194.58.198.32
2a01:3f1:3032::53
1556326447

Good news, no warnings or errors were found.

We could not find any recommendations at this time.

Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.

  • All nameservers reply with the same SOA serial number.
  • The nameserver IPs are distributed across multiple subnets.
  • All nameservers are online.
  • Nameservers are available over IPv4.
  • Nameservers are available over IPv6.

Performance: 91%

We tested each nameserver and measured the following response times.

Nameserver IP address(es) Response time
ns1.restena.lu. 158.64.1.23
2001:a18:1::23
15ms
15ms
ns2.restena.lu. 145.100.190.186
2001:610:188:406:145:100:190:186
6ms
6ms
ns3.restena.lu. 158.64.12.45
2001:a18:6:2::45
13ms
15ms
ns9.restena.lu. 194.58.198.32
2a01:3f1:3032::53
171ms
6ms

We detected the following errors or warnings about your DNS configuration. These caused your DNS rating to be lowered. Resolving these will grant a higher DNS Spy rating for your domain.

  • Nameserver ns9.restena.lu. (194.58.198.32) replied, but took too long (171ms). This will severely impact performance.

We could not find any recommendations at this time.

Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.

  • Nameserver ns1.restena.lu. (158.64.1.23) replied quickly (< 50ms).
  • Nameserver ns1.restena.lu. (2001:a18:1::23) replied in a reasonable time.
  • Nameserver ns2.restena.lu. (145.100.190.186) replied quickly (< 50ms).
  • Nameserver ns2.restena.lu. (2001:610:188:406:145:100:190:186) replied in a reasonable time.
  • Nameserver ns3.restena.lu. (158.64.12.45) replied quickly (< 50ms).
  • Nameserver ns3.restena.lu. (2001:a18:6:2::45) replied in a reasonable time.
  • Nameserver ns9.restena.lu. (2a01:3f1:3032::53) replied in a reasonable time.

Resilience & Security: 100%

These are the locations and providers of your nameservers.

Nameserver Location ISP
ns1.restena.lu. IPv4: LU
IPv6: LU
AS2602 - RESTENA Reseau Teleinformatique de l_Education Nationale, LU
AS2602 - RESTENA Reseau Teleinformatique de l_Education Nationale, LU
ns2.restena.lu. IPv4: NL
IPv6: NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL
ns3.restena.lu. IPv4: LU
IPv6: LU
AS2602 - RESTENA Reseau Teleinformatique de l_Education Nationale, LU
AS2602 - RESTENA Reseau Teleinformatique de l_Education Nationale, LU
ns9.restena.lu. IPv4: SE
IPv6: SE
AS56908 - NETNOD-NDS $Id: aut-num_AS56908,v 1.1 2016/03/07 11:15:51 mem Exp $, SE
AS56908 - NETNOD-NDS $Id: aut-num_AS56908,v 1.1 2016/03/07 11:15:51 mem Exp $, SE

Good news, no warnings or errors were found.

We detected some possible recommendations for you to consider. No penalties were given for these, but resolving them can give you a higher DNS score.

  • No CAA records found. Consider adding CAA records, as it adds increased security by limiting which Certificate Authorities can issue certificates for this domain. (more info)

Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.

  • You have more than 1 nameserver.
  • The IPv4 nameservers are distributed among multiple providers.
  • The IPv4 nameservers are distributed across multiple locations.
  • The IPv6 nameservers are distributed among multiple providers.
  • The IPv6 nameservers are distributed across multiple locations.
  • DNSSEC is enabled.
  • You are using glue records, this will speed up the initial DNS requests.

DNS records: 100%

Our scans detected the following publicly available DNS records.

Record TTL Value
A restena.lu 1h 158.64.1.83
AAAA restena.lu 1h 2001:a18:1::83
DNSKEY restena.lu 1h ZSK | RSA/SHA-256 | AwEAAdNLqQR/tUSFwW7ujIQeCm3MPxc6xxZ4aisrJlhiozO7UcuNyP+4 ScWV8SIhZCdR/P4cBvPAKOBv9eWvhsthJQbeCEIS5qCLH78UjodJHyiy B6xNfbXJzB3PhYl6/6EFqcNMvys4pR8PsvKXn66umd+BWn3koVqe1JQc 3ywk3GbZ

KSK | RSA/SHA-256 | AwEAAbNOhzpKvFCs7WS+AwGDTOLl4tT0tjjJN/s6bbSA4h2nAKS0C0Ui xWSCBKlny9B9uWcqv7Bp96Tcs+Tq+y32D0U0TfsLtg8MzMBMOx0rR6Zd smccsGYZZfMpEV3izH97lBZFMZrOgZaXypNsH0A4dBKgh/3v+WzJhBRj IfykcrpaIFQJsSmgIFGZWvWD7KK/iQ/yJQEBsFD8PfQ4M2irSqqPLzSb N4iFJxuF9hUHDZbPNDlu1nYRVdkSS+iQMojLq1h6ZMmYFPAbGUiaQX6/ IuyqC/f4MA0jlrTh7VwQDWjHIdUkWKPJt+5TV3OsX0qTQjwt0kva+4zs 212W0gFDS2U=
MX restena.lu 6h 10 smtpgate1.restena.lu.
10 smtpgate2.restena.lu.
NS restena.lu 6h ns1.restena.lu.
ns2.restena.lu.
ns3.restena.lu.
ns9.restena.lu.
SOA restena.lu 12h ns1.restena.lu. noc.restena.lu. 1556326447 14400 1800 604800 3600
TXT restena.lu 1h "v=spf1 mx ip4:158.64.1.62/32 ip6:2001:a18:1::62/128 ip4:158.64.1.60/32 ip6:2001:a18:1::60/128 ip4:158.64.1.70/32 ip6:2001:a18:1::70/128 ip4:158.64.1.34/32 ip6:2001:a18:1::34/128 -all"
SRV _caldav._tcp.restena.lu 6h 0 0 8008 planning.restena.lu.
SRV _sip._tcp.restena.lu 6h 1 0 5060 voip.restena.lu.
SRV _xmpp-client._tcp.restena.lu 6h 0 0 5222 jabber.restena.lu.
SRV _xmpp-server._tcp.restena.lu 6h 0 0 5269 jabber.restena.lu.
A autodiscover.restena.lu 1h 158.64.1.83
AAAA autodiscover.restena.lu 1h 2001:a18:1::83
CNAME calendar.restena.lu 6h caldav-proxy.restena.lu.
CNAME dev.restena.lu 6h ops.restena.lu.
A enterpriseenrollment.restena.lu 6h 158.64.1.87
AAAA enterpriseenrollment.restena.lu 6h 2001:a18:1::87
A ftp.restena.lu 6h 158.64.1.7
AAAA ftp.restena.lu 6h 2001:a18:1::7
A git.restena.lu 6h 158.64.2.247
AAAA git.restena.lu 6h 2001:a18:1:6::247
A localhost.restena.lu 6h 127.0.0.1
CNAME mail.restena.lu 360s grima-fj.restena.lu.
A mailgate.restena.lu 6h 158.64.1.46
AAAA mailgate.restena.lu 6h 2001:a18:1::46
A mailing.restena.lu 6h 158.64.1.48
A monitor.restena.lu 6h 158.64.1.77
AAAA monitor.restena.lu 6h 2001:a18:1::77
A mysql.restena.lu 6h 158.64.1.69
CNAME news.restena.lu 6h galadriel.restena.lu.
A ns.restena.lu 6h 158.64.1.25
AAAA ns.restena.lu 6h 2001:a18:1::25
A ns1.restena.lu 6h 158.64.1.23
AAAA ns1.restena.lu 6h 2001:a18:1::23
A ns2.restena.lu 6h 145.100.190.186
AAAA ns2.restena.lu 6h 2001:610:188:406:145:100:190:186
A ns3.restena.lu 6h 158.64.12.45
AAAA ns3.restena.lu 6h 2001:a18:6:2::45
A ns8.restena.lu 6h 194.58.192.32
AAAA ns8.restena.lu 6h 2a01:3f1:32::53
A ns9.restena.lu 6h 194.58.198.32
AAAA ns9.restena.lu 6h 2a01:3f1:3032::53
A ops.restena.lu 12h 158.64.1.210
AAAA ops.restena.lu 12h 2001:a18:1:6::210
A pop3.restena.lu 6h 158.64.1.31
CNAME sip.restena.lu 6h voip.restena.lu.
CNAME smtp.restena.lu 6h legolas.restena.lu.
CNAME svn.restena.lu 6h ops.restena.lu.
A voip.restena.lu 6h 158.64.37.3
A vpn.restena.lu 12h 158.64.1.53
A webmail.restena.lu 6h 158.64.1.83
AAAA webmail.restena.lu 6h 2001:a18:1::83
A whois.restena.lu 6h 158.64.1.113
AAAA whois.restena.lu 6h 2001:a18:1::113
A www.restena.lu 1h 158.64.1.83
AAAA www.restena.lu 1h 2001:a18:1::83

Good news, no warnings or errors were found.

We detected some possible recommendations for you to consider. No penalties were given for these, but resolving them can give you a higher DNS score.

  • No DMARC records have been found. Consider configuring DMARC for improved e-mail authentication.

Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.

  • Multiple MX records found.
  • MX records with different priorities found (main + fall-back mailservers).
  • The MX record for "restena.lu" has a long TTL (1h+).
  • The MX records points to multiple mailservers.
  • The NS records have a long TTL (1h+).
  • Your SOA serial number follows the best practice YYYYMMDDxx format.
  • SPF records have been found.
  • SPF records are set up restrictively.
  • Found a root (apex) DNS record.
  • Found a www DNS record.
  • Found an IPv6 root DNS record.
  • The active nameservers match the NS records.
  • The DNS records appear to be RFC compliant.
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