DNS report for hsleiden.nl

This report was generated 1d ago. Refresh?
A+
Connectivity
100%
Performance
100%
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 hsleiden.nl.

Nameserver IP address(es) SOA serial
ns1.surfnet.nl. 192.87.106.101
2001:610:1:800a:192:87:106:101
2025062613
ns1.zurich.surf.net. 195.176.255.9
2001:620:0:9::1103
2025062613
ns2.surfnet.nl. 192.87.36.2
2001:610:3:200a:192:87:36:2
2025062613
ns3.surfnet.nl. 195.169.124.71
2001:610:0:800c:195:169:124:71
2025062613

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: 100%

We tested each nameserver and measured the following response times.

Nameserver IP address(es) Response time
ns1.surfnet.nl. 192.87.106.101
2001:610:1:800a:192:87:106:101
91ms
1ms
ns1.zurich.surf.net. 195.176.255.9
2001:620:0:9::1103
1ms
1ms
ns2.surfnet.nl. 192.87.36.2
2001:610:3:200a:192:87:36:2
1ms
1ms
ns3.surfnet.nl. 195.169.124.71
2001:610:0:800c:195:169:124:71
1ms
1ms

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.

  • Nameserver ns1.surfnet.nl. (192.87.106.101) replied reasonably fast (< 150ms), but you should aim for < 50ms response times.

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

  • Nameserver ns1.surfnet.nl. (2001:610:1:800a:192:87:106:101) replied in a reasonable time.
  • Nameserver ns1.zurich.surf.net. (195.176.255.9) replied quickly (< 50ms).
  • Nameserver ns1.zurich.surf.net. (2001:620:0:9::1103) replied in a reasonable time.
  • Nameserver ns2.surfnet.nl. (192.87.36.2) replied quickly (< 50ms).
  • Nameserver ns2.surfnet.nl. (2001:610:3:200a:192:87:36:2) replied in a reasonable time.
  • Nameserver ns3.surfnet.nl. (195.169.124.71) replied quickly (< 50ms).
  • Nameserver ns3.surfnet.nl. (2001:610:0:800c:195:169:124:71) replied in a reasonable time.

Resilience & Security: 100%

These are the locations and providers of your nameservers.

Nameserver Location ISP
ns1.surfnet.nl. IPv4: NL
IPv6: NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL
ns1.zurich.surf.net. IPv4: CH
IPv6: CH
AS559 - SWITCH Peering requests: [email protected], CH
AS559 - SWITCH Peering requests: [email protected], CH
ns2.surfnet.nl. IPv4: NL
IPv6: NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL
ns3.surfnet.nl. IPv4: NL
IPv6: NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL
AS1103 - SURFNET-NL SURFnet, The Netherlands, NL

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.

  • 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.
  • CAA records found.
  • The nameservers are being operated from multiple domains (surfnet.nl, surf.net).

DNS records: 100%

Our scans detected the following publicly available DNS records.

Record TTL Value
A hsleiden.nl 3h 145.97.19.146
CAA hsleiden.nl 3h hsleiden.nl. 10800 IN CAA 0 iodef "mailto:[email protected]"
hsleiden.nl. 10800 IN CAA 0 issue "harica.gr"
DNSKEY hsleiden.nl 1h UNKNOWN | UNKNOWN | DNSKEY 257 3 13 6H2UHULISbXx5aTe9MLJU9khlt6pqnKtEf6uSBc0msk9Ocmbwohb7B0gbtGVQIOwnPk0R7H5F0LiT1fBZlK4/A==
MX hsleiden.nl 3h 0 hsleiden-nl.mail.protection.outlook.com.
NS hsleiden.nl 3h ns1.surfnet.nl.
ns1.zurich.surf.net.
ns2.surfnet.nl.
ns3.surfnet.nl.
SOA hsleiden.nl 3h ns1.surfnet.nl. dns-beheer.surfnet.nl. 2025062613 86400 3600 604800 86400
TXT hsleiden.nl 3h "HARICA-j8zH7tOhEUwCw8oDKi7"
"MS=ms57848078"
"RttGVR43n1XfrNyaKFk14JgY22SjeT1ON+Pmji6GMFVzVxX0dHPpCZxZqM5ZL/IasVFOjDiboU0qEZkFw3dFeQ=="
"apple-domain-verification=L1x0sLQjk7CKFSZ3"
"google-site-verification=7b_BJihKMERLEH-f7uNXmRtyTyAEqvLcadP0C_1NCTU"
"google-site-verification=8CDmV75AnPItpPFFV69ZPa7KkOoDtNr0fCod1YJWcUo"
"google-site-verification=I1VNTxWkWZ1daZHeMoEptY18Pbh_BAIE97dyNSwBzow"
"v=spf1 include:spf.protection.outlook.com include:_spf.surfmailfilter.nl ip4:145.97.19.16 ~all"
TXT _dmarc.hsleiden.nl 3h "v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; adkim=s; aspf=s;"
SRV _sip._tls.hsleiden.nl 24h 1 100 443 sipdir.online.lync.com.
SRV _sipfederationtls._tcp.hsleiden.nl 24h 0 100 5061 sipfed.online.lync.com.
CNAME autodiscover.hsleiden.nl 3h autodiscover.outlook.com
CNAME beta.hsleiden.nl 3h beta.hsleiden.nl.cdn.cloudflare.net
CNAME cms.hsleiden.nl 3h cms.hsleiden.nl.cdn.cloudflare.net
CNAME enterpriseenrollment.hsleiden.nl 24h enterpriseenrollment.manage.microsoft.com
CNAME enterpriseregistration.hsleiden.nl 24h enterpriseregistration.windows.net
A info.hsleiden.nl 24h 85.17.2.22
A intranet.hsleiden.nl 3h 145.97.19.146
CNAME lyncdiscover.hsleiden.nl 24h webdir.online.lync.com
CNAME selector1._domainkey.hsleiden.nl 3h selector1-hsleiden-nl._domainkey.hogeschoolleiden.onmicrosoft.com
CNAME selector2._domainkey.hsleiden.nl 3h selector2-hsleiden-nl._domainkey.hogeschoolleiden.onmicrosoft.com
CNAME sip.hsleiden.nl 24h sipdir.online.lync.com
A webmail.hsleiden.nl 3h 145.97.19.146
CNAME www.hsleiden.nl 3h www.hsleiden.nl.cdn.cloudflare.net

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 IPv6 record has been found on the zone apex (hsleiden.nl). Consider enabling IPv6 in the infrastructure by adding an AAAA record on this domain.

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

  • Single MX record but with multiple IPs associated to it.
  • The MX record for "hsleiden.nl" has a long TTL (1h+).
  • 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.
  • DMARC records have been found.
  • DMARC records are set up restrictively.
  • Found a root (apex) DNS record.
  • Found a www DNS record.
  • The active nameservers match the NS records.
  • The DNS records appear to be RFC compliant.
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