Tech basics
What is DNS?
DNS is the internet's directory: it turns a domain name into a server address and decides where your email goes. Understanding it solves most site and email problems.
- Record types
- Propagation
- Free check tools
The main DNS records
| Record | What it does |
|---|---|
| A / AAAA | Points the domain to the server's IPv4 or IPv6 |
| CNAME | Makes a subdomain an alias of another name |
| MX | Sets the mail servers that receive email |
| TXT | Text for verification such as SPF, DKIM and DMARC |
| NS | Sets the servers that manage the domain's records |
Why changes are not instant
Every record has a cache time (TTL), so servers worldwide keep the old value until it expires. That is why a nameserver or record change can take from minutes to several hours to show everywhere.
Check your records for free
- The DNS lookup tool to show any domain's records
- The mail check tool for MX, SPF and DMARC
- The Whois tool for domain registration data
Frequently asked questions
Where do I edit my DNS records?
In the client area if the domain is registered with us, or in the hosting panel if the nameservers point there. The help center has a step-by-step guide.
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