DNS report for mezihost.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 mezihost.cz.

Nameserver IP address(es) SOA serial
formica.dnsant.cz. 93.185.103.88
2a00:1ed0:1:1300::88
2022110502
karinca.dnsant.eu. 5.75.142.217
2a01:4f8:1c1c:6af8::1
2022110502
langgam.dnsant.eu. 89.221.216.95
2a02:2b88:2:55f::1
2022110502
pismire.dnsant.net. 158.69.226.171
2607:5300:60:97ab::1
2022110502

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
formica.dnsant.cz. 93.185.103.88
2a00:1ed0:1:1300::88
55ms
55ms
karinca.dnsant.eu. 5.75.142.217
2a01:4f8:1c1c:6af8::1
23ms
23ms
langgam.dnsant.eu. 89.221.216.95
2a02:2b88:2:55f::1
35ms
35ms
pismire.dnsant.net. 158.69.226.171
2607:5300:60:97ab::1
111ms
111ms

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 formica.dnsant.cz. (93.185.103.88) replied reasonably fast (< 150ms), but you should aim for < 50ms response times.
  • Nameserver pismire.dnsant.net. (158.69.226.171) 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 formica.dnsant.cz. (2a00:1ed0:1:1300::88) replied in a reasonable time.
  • Nameserver karinca.dnsant.eu. (5.75.142.217) replied quickly (< 50ms).
  • Nameserver karinca.dnsant.eu. (2a01:4f8:1c1c:6af8::1) replied in a reasonable time.
  • Nameserver langgam.dnsant.eu. (89.221.216.95) replied quickly (< 50ms).
  • Nameserver langgam.dnsant.eu. (2a02:2b88:2:55f::1) replied in a reasonable time.
  • Nameserver pismire.dnsant.net. (2607:5300:60:97ab::1) replied in a reasonable time.

Resilience & Security: 100%

These are the locations and providers of your nameservers.

Nameserver Location ISP
formica.dnsant.cz. IPv4: CZ
IPv6: CZ
AS43541 - VSHOSTING, CZ
AS43541 - VSHOSTING, CZ
karinca.dnsant.eu. IPv4: DE
IPv6: DE
AS24940 - HETZNER-AS, DE
AS24940 - HETZNER-AS, DE
langgam.dnsant.eu. IPv4: CZ
IPv6: CZ
AS197019 - WEDOS, CZ
AS197019 - WEDOS, CZ
pismire.dnsant.net. IPv4: CA
IPv6: CA
AS16276 - OVH, FR
AS16276 - OVH, FR

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 (dnsant.cz, dnsant.eu, dnsant.net).

DNS records: 100%

Our scans detected the following publicly available DNS records.

Record TTL Value
CAA mezihost.cz 1h 0 issue "letsencrypt.org"
0 issuewild "letsencrypt.org"
DNSKEY mezihost.cz 1h KSK | ECDSA Curve P-256 with SHA-256 | TJNMtdMUITbBqacxjPt5ihj7aI8gpe4DxrNl8E+nw9xtrfd3hMavogiU JlzIueiKxcpC+JH7lv8KcXoPsXJJZw==
NS mezihost.cz 1h formica.dnsant.cz.
karinca.dnsant.eu.
langgam.dnsant.eu.
pismire.dnsant.net.
SOA mezihost.cz 1h formica.dnsant.cz. admin.dnsant.cz. 2022110502 14400 3600 604800 3600

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 SPF records were found. SPF records limit which IPs are allowed to send mail from this domain. Even if this domain doesn't send e-mails, you should set up SPF to confirm it will never send e-mail, to prevent spoofing.
  • No DMARC records have been found. Consider configuring DMARC for improved e-mail authentication.
  • No DNS record found on your zone apex (mezihost.cz). Consider adding a DNS record for "mezihost.cz" as an A record.
  • No IPv6 record has been found on the zone apex (mezihost.cz). 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.

  • The NS records have a long TTL (1h+).
  • Your SOA serial number follows the best practice YYYYMMDDxx format.
  • The active nameservers match the NS records.
  • The DNS records appear to be RFC compliant.
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