What Is A Record?
An A Record (Address Record) is the most fundamental type of DNS record. It maps a domain name to the IPv4 address of the server hosting the website. When someone types your domain into a browser, the DNS system uses the A record to find where your website actually lives.
For example, if your domain is mybrand.com and your web server's IP is 104.21.3.142, the A record creates that connection. Without an A record, browsers wouldn't know where to send visitors when they type your domain.
You configure A records through your domain registrar or DNS provider. Changes can take minutes to hours to propagate across the global DNS system — a process called domain propagation.
Why This Matters for Startups
When you launch your startup's website, setting up the A record is one of the first technical steps. Most hosting platforms (Cloudflare, Vercel, Netlify, AWS) provide the IP address you need and walk you through the setup. If you're using a service like Cloudflare Pages, they handle DNS configuration almost automatically. Understanding A records helps when troubleshooting 'site not loading' issues — often it's a DNS misconfiguration.
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