DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

herynek.cz runs on Cloudflare, with DNS by Cloudflare and email configured.

Hosting network
CloudflareAS13335Cloudflare
Managed DNS
Cloudflare
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 5,615,234 other sites on Cloudflare.

Recently changed networks: AS39392 → Cloudflare (AS13335) (as of Oct 25, 2026)

The apex and www are the same hosting — the apex via A records.

DNS Records for herynek.cz

HostnameTypeTTLPriorityContent
herynek.czTXT0v=spf1 a mx include:_spf.alias.cz ~all
herynek.czTXT0google-site-verification=c7LOyEpI9IQWmW9nagHAfj6lneIwX0xSQr-elrUna0k
herynek.czA0172.67.144.251
herynek.czA0104.21.95.133
herynek.czNS0jay.ns.cloudflare.com
herynek.czNS0sara.ns.cloudflare.com
herynek.czAAAA02606:4700:3033::ac43:90fb
herynek.czAAAA02606:4700:3037::6815:5f85
herynek.czSOA1800jay.ns.cloudflare.com dns.cloudflare.com 2418182927 10000 2400 604800 1800
herynek.czMX010mail.alias.cz
www.herynek.czA0172.67.144.251
www.herynek.czA0104.21.95.133
www.herynek.czAAAA02606:4700:3033::ac43:90fb
www.herynek.czAAAA02606:4700:3037::6815:5f85

Get alerted the moment herynek.cz's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch herynek.cz continuously, notifying you the moment anything moves across all three signals:

DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain