natboxDNS lookup
What the records mean
| Record | What it does |
|---|---|
A | The IPv4 address the name points to. |
AAAA | The IPv6 address. |
CNAME | An alias: this name is another name (for example www pointing to the bare domain). |
MX | The mail servers that receive email for the domain, lowest number first. |
NS | The name servers that hold the domain's records (your DNS host). |
TXT | Free text: SPF, DKIM, DMARC and site verification codes live here. |
CAA | Which certificate authorities (like Let's Encrypt) may issue HTTPS certificates. |
SOA | The zone's main name server, contact and timers. |
SRV | A service's host and port, for names like _minecraft._tcp.example.com. |
PTR | Reverse DNS: the name an IP address points back to. Mail servers check it. |
DNS questions
I changed a record. Why do I still see the old one?
Resolvers keep each answer for its TTL (time to live, in seconds, shown above). Until that runs out, some people still get the old answer. Lower the TTL a day before a planned change, and wait for the old TTL to pass after it.
Which resolver does this page use?
Cloudflare's 1.1.1.1, with Quad9 (9.9.9.9) if that does not answer. So you see the same public answer most people get, not your own computer's cache.
How do I check this from a server?
Run dig example.com MX or dig +short example.com (package dnsutils on Debian and Ubuntu), or nslookup example.com on Windows.
How do I point my domain at a natbox server?
Add an AAAA record with your server's IPv6 address, then add the domain in the client area so we send IPv4 visitors to it as well. The website guide walks through it.
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