DNS report for mini-kurzy.cz

This report was generated 3 weeks 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 mini-kurzy.cz.

Nameserver IP address(es) SOA serial
ns.onebit.cz. 81.31.45.112
2a01:430:13::112
2021081201
ns.onebit.eu. 95.129.97.160
2a02:e98:0:2006::5f81:61a0
2021081201
ns.onebit.org. 85.118.129.55
2a01:430:203:2::55
2021081201

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
ns.onebit.cz. 81.31.45.112
2a01:430:13::112
31ms
27ms
ns.onebit.eu. 95.129.97.160
2a02:e98:0:2006::5f81:61a0
31ms
31ms
ns.onebit.org. 85.118.129.55
2a01:430:203:2::55
31ms
27ms

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.

  • Nameserver ns.onebit.cz. (81.31.45.112) replied quickly (< 50ms).
  • Nameserver ns.onebit.cz. (2a01:430:13::112) replied in a reasonable time.
  • Nameserver ns.onebit.eu. (95.129.97.160) replied quickly (< 50ms).
  • Nameserver ns.onebit.eu. (2a02:e98:0:2006::5f81:61a0) replied in a reasonable time.
  • Nameserver ns.onebit.org. (85.118.129.55) replied quickly (< 50ms).
  • Nameserver ns.onebit.org. (2a01:430:203:2::55) replied in a reasonable time.

Resilience & Security: 100%

These are the locations and providers of your nameservers.

Nameserver Location ISP
ns.onebit.cz. IPv4: CZ
IPv6: CZ
AS24971 - MASTER-AS Czech Republic www.master.cz, CZ
AS24971 - MASTER-AS Czech Republic www.master.cz, CZ
ns.onebit.eu. IPv4: CZ
IPv6: CZ
AS24641 - FASTER-AS, CZ
AS24641 - FASTER-AS, CZ
ns.onebit.org. IPv4: CZ
IPv6: CZ
AS24971 - MASTER-AS Czech Republic www.master.cz, CZ
AS24971 - MASTER-AS Czech Republic www.master.cz, CZ

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.

  • All IPv4 nameservers appear to be hosted in the same country (CZ). You might want to consider spreading the nameservers geographically.
  • All IPv6 nameservers appear to be hosted in the same country (CZ). You might want to consider spreading the nameservers geographically.
  • 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 IPv6 nameservers are distributed among multiple providers.
  • DNSSEC is enabled.
  • The nameservers are being operated from multiple domains (onebit.cz, onebit.eu, onebit.org).

DNS records: 100%

Our scans detected the following publicly available DNS records.

Record TTL Value
A mini-kurzy.cz 1h 178.238.37.231
AAAA mini-kurzy.cz 1h 2a01:430:13::231
DNSKEY mini-kurzy.cz 1h ZSK | ECDSA Curve P-384 with SHA-384 | 8Vj8cPbAeRELhDYdKgPHvgzLdLwZeWftMnHmLs5/Ck/jcQqf4PMtQFxq uMNx4ULZ7Wrr3hJKHdBTk9YQnyl5C56P2Nf1k4+KBG0X5OdEJ84pmlu2 L++Q/MrzNt4PooiL

KSK | ECDSA Curve P-384 with SHA-384 | ystXD2pqOsUtfxDciYhkDjRmgJRgeNUoqyqOuDrQYdNUerxRQFnr2zay xC5b/Otq3xsGrDNCYJhqJNFrAWorqKURX6i4D5cDcSnogGAdLZU9NZqX VNkcy4RHBhk7FJPG
MX mini-kurzy.cz 1h 0 mx10.onebit.cz.
10 mx10.onebit.eu.
NS mini-kurzy.cz 1h ns.onebit.cz.
ns.onebit.eu.
ns.onebit.org.
SOA mini-kurzy.cz 7200s ns.onebit.cz. hostmaster.onebit.cz. 2021081201 43200 7200 2419200 3600
TXT mini-kurzy.cz 1h "v=spf1 a mx include:spf.smartemailing.cz ~all"
TXT _dmarc.mini-kurzy.cz 1h "v=DMARC1; p=none"
A *.mini-kurzy.cz 1h 178.238.37.231
CNAME autodiscover.mini-kurzy.cz 1h autodiscover.onebit.cz.
A mail.mini-kurzy.cz 1h 178.238.37.193
AAAA mail.mini-kurzy.cz 1h 2a01:430:13::193
CNAME smtp.mini-kurzy.cz 1h smtp10.onebit.cz.
A www.mini-kurzy.cz 1h 178.238.37.231
AAAA www.mini-kurzy.cz 1h 2a01:430:13::231

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.

  • You have DMARC records configured, but the "p=none" policy only triggers reports to your e-mail address, the receiver is instructed to not take actions.

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 "mini-kurzy.cz" 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.
  • DMARC records have been found.
  • 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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