What is an A record?
Learn what an A record is, how it maps hostnames to IPv4 addresses, and how to troubleshoot A record issues.
What an A record is
An A record maps a hostname to an IPv4 address. It tells clients where to connect when they resolve a domain.
You can check A records using DNS Pro: https://app.dnspro.co.uk/dns-lookup
Example
example.com. 300 IN A 203.0.113.10Why A records matter
A records are fundamental to DNS. They are used for websites, APIs, and many backend services.
Common issues
- Incorrect IP address
- Missing record
- DNS propagation delays
- Multiple conflicting records
Related concepts
Learn more about DNS basics here: /articles/what-is-dns