DNS report for nix.cz

This report was generated 1 week 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 nix.cz.

Nameserver IP address(es) SOA serial
domain.nix.cz. 93.190.134.172
2a02:38:2::172
2021012139
domain.nixcz.org. 217.31.204.70
2001:1488:800:400::2:70
2021012139

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
domain.nix.cz. 93.190.134.172
2a02:38:2::172
51ms
35ms
domain.nixcz.org. 217.31.204.70
2001:1488:800:400::2:70
51ms
35ms

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 domain.nix.cz. (93.190.134.172) replied reasonably fast (< 150ms), but you should aim for < 50ms response times.
  • Nameserver domain.nixcz.org. (217.31.204.70) 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 domain.nix.cz. (2a02:38:2::172) replied in a reasonable time.
  • Nameserver domain.nixcz.org. (2001:1488:800:400::2:70) replied in a reasonable time.

Resilience & Security: 100%

These are the locations and providers of your nameservers.

Nameserver Location ISP
domain.nix.cz. IPv4: CZ
IPv6: CZ
AS6881 - NIXCZ NIX.CZ z.s.p.o., CZ
AS6881 - NIXCZ NIX.CZ z.s.p.o., CZ
domain.nixcz.org. IPv4: CZ
IPv6: CZ
AS25192 - CZNIC-AS, CZ
AS25192 - CZNIC-AS, 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 (nix.cz, nixcz.org).

DNS records: 100%

Our scans detected the following publicly available DNS records.

Record TTL Value
A nix.cz 6h 93.190.134.171
AAAA nix.cz 6h 2a02:38:2::171
DNSKEY nix.cz 6h KSK | ECDSA Curve P-256 with SHA-256 | /jTzIK94c02JBCkielnF5ADxoJoDnYIvcoJ+3gmgI0L5IH2580XjP0bU DAWt11PNZlpd6cMnTumUCWTbStI6JQ==
MX nix.cz 6h 1 aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
NS nix.cz 6h domain.nix.cz.
domain.nixcz.org.
SOA nix.cz 6h domain.nix.cz. noc.nix.cz. 2021012139 28800 7200 2419200 600
TXT nix.cz 1800s "google-site-verification=1Ak7Qwul_pW9YIZCzqo4qOPZXyc98_tcbHmLRy3flyw"
"v=spf1 a mx include:_spf.nix.cz include:_spf.google.com ~all"
TXT _dmarc.nix.cz 1800s "v=DMARC1; p=none;"
A domain.nix.cz 1800s 93.190.134.172
A mail.nix.cz 1800s 195.47.235.12
AAAA mail.nix.cz 1800s 2a02:38::1002
A public.nix.cz 1800s 93.190.134.171
CNAME www.nix.cz 1800s public.nix.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.

  • 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 "nix.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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