SOA Lookup
Inspect a domain's SOA (Start of Authority) record — primary nameserver, zone serial, and the refresh, retry, expire and minimum TTL timers. Resolved on Uptimeify's EU servers.
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Frequently asked questions about SOA Lookup
The SOA (Start of Authority) record sits at the top of every DNS zone and holds its administrative settings: the primary (master) nameserver, the hostmaster contact, a serial number that secondary servers use to detect changes, and the refresh, retry, expire and minimum-TTL timers that govern how often secondaries sync and how long negative answers are cached. Exactly one SOA exists per zone.
The serial is a version number for the zone. Every time you edit DNS, the primary nameserver should bump it, and secondary servers compare serials to know when to pull a fresh copy. A common format is the date plus a counter (for example 2026060901). If your change isn't showing up, a serial that didn't increase is a frequent cause.
The query runs on Uptimeify's EU servers, not in your browser — the domain you enter is sent to us only to perform the lookup and is not stored. As an EU-built, EU-hosted provider, Uptimeify keeps this off US infrastructure and clear of US Cloud Act exposure, which matters for agencies handling client data under GDPR.
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