DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
amu.cz runs on Amazon AWS, with email via Microsoft 365.
- Hosting network
- Amazon AWSAS16509Amazon AWS
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 5,762,477 other sites on Amazon AWS. Stable here since we started watching (Jul 15, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to amu.cz.
DNS Records for amu.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| amu.cz | SOA | 7200 | tucnak.r.amu.cz hostmaster.amu.cz 2026092200 28800 7200 1209600 7200 | |
| amu.cz | MX | 0 | amu-cz.mail.protection.outlook.com | |
| amu.cz | NS | 0 | golias.ruk.cuni.cz | |
| amu.cz | NS | 0 | tucnak.r.amu.cz | |
| amu.cz | NS | 0 | ns2.amu.cz | |
| amu.cz | TXT | 0 | google-site-verification=yh0_s703e__2mVqL1yhHkUZez066TBBmI2o-7jnxvDk | |
| amu.cz | TXT | 0 | atlassian-domain-verification=o1OSLUp6/eJNl4Gq4ivqFaosaBuMGAAnKdUjIEBG3cPCuN5OO6camf0UGqj4MWhE | |
| amu.cz | TXT | 0 | cisco-ci-domain-verification=2db86f6aef20b43f38e6c19034df14cf5c8460079267f7c38f12ce220384a3f2 | |
| amu.cz | TXT | 0 | v=spf1 ip4:195.113.72.5 ip4:195.113.72.6 include:spf.protection.outlook.com include:_spf.google.com include:servers.mcsv.net include:_spf.atlassian.net -all | |
| amu.cz | TXT | 0 | atlassian-sending-domain-verification=566c56d9-04cb-4760-8db1-543475558fa2 | |
| amu.cz | TXT | 0 | MS=ms13872568 | |
| amu.cz | A | 0 | 3.73.5.164 | |
| www.amu.cz | NS | 0 | ns2.amu.cz | |
| www.amu.cz | NS | 0 | tucnak.r.amu.cz | |
| www.amu.cz | NS | 0 | golias.ruk.cuni.cz | |
| www.amu.cz | SOA | 7200 | tucnak.r.amu.cz hostmaster.amu.cz 2026092200 28800 7200 1209600 7200 | |
| www.amu.cz | MX | 0 | amu-cz.mail.protection.outlook.com | |
| www.amu.cz | CNAME | 0 | amu.cz | |
| www.amu.cz | A | 0 | 3.73.5.164 | |
| www.amu.cz | TXT | 0 | MS=ms13872568 | |
| www.amu.cz | TXT | 0 | cisco-ci-domain-verification=2db86f6aef20b43f38e6c19034df14cf5c8460079267f7c38f12ce220384a3f2 | |
| www.amu.cz | TXT | 0 | google-site-verification=yh0_s703e__2mVqL1yhHkUZez066TBBmI2o-7jnxvDk | |
| www.amu.cz | TXT | 0 | v=spf1 ip4:195.113.72.5 ip4:195.113.72.6 include:spf.protection.outlook.com include:_spf.google.com include:servers.mcsv.net include:_spf.atlassian.net -all | |
| www.amu.cz | TXT | 0 | atlassian-domain-verification=o1OSLUp6/eJNl4Gq4ivqFaosaBuMGAAnKdUjIEBG3cPCuN5OO6camf0UGqj4MWhE | |
| www.amu.cz | TXT | 0 | atlassian-sending-domain-verification=566c56d9-04cb-4760-8db1-543475558fa2 |
Get alerted the moment amu.cz's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch amu.cz continuously, notifying you the moment anything moves across all three signals:
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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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