Domain Names and DNS Explained

What is a Domain Name?

A domain name is your address on the internet — starcaller.uk is a domain. You don't truly own a domain; you rent it from a registrar (like Namecheap, Cloudflare, or GoDaddy) for a yearly fee. As long as you keep paying, it's yours. If you stop, someone else can buy it.

A typical .com or .uk domain costs £8–15/year. Fancy extensions (.ai, .io) can cost much more. Never pay more than £15/year for a standard domain — some registrars lure you in with a cheap first year then hike the renewal price.

Step 1. How DNS Translates Names to Numbers

DNS (Domain Name System) is the internet's phonebook. When you type starcaller.uk into your browser, DNS translates that name into an IP address — a string of numbers like 104.21.55.142 that identifies the actual server where the website lives.

This translation happens in milliseconds, across multiple DNS servers around the world. Your computer doesn't know where "starcaller.uk" is — it asks a DNS resolver, which asks a root server, which points to the authoritative nameserver for that domain, which returns the IP. This entire chain is called DNS resolution.

Step 2. Common DNS Record Types

These are the records you'll actually encounter:

Step 3. Buying and Configuring a Domain

1. 1.Choose a registrar. Cloudflare (at cost, no markup), Namecheap, and Porkbun are all reputable. Avoid GoDaddy — aggressive upselling and poor security history.
2. 2.Search for availability. Your first choice may be taken. Have a few alternatives. Avoid hyphens and numbers if possible — they're harder to say aloud.
3. 3.Buy it. Enable auto-renew immediately. A lapsed domain can be bought by someone else within days.
4. 4.Point the nameservers to your DNS host. If you bought from Cloudflare, this is automatic. If you bought elsewhere but want Cloudflare DNS, change the NS records at your registrar to Cloudflare's nameservers.

Step 4. DNS Propagation — Why Changes Aren't Instant

When you change a DNS record, it doesn't take effect everywhere immediately. DNS servers around the world cache records for a time specified by the TTL (Time To Live) — typically 5 minutes to 24 hours. This is called propagation.

In practice: Cloudflare changes usually propagate in under 5 minutes. Registrar DNS can take hours. You can check propagation status with dig yourdomain.com in a terminal or use whatsmydns.net to check from multiple global locations.

Step 5. Using Cloudflare for DNS (Recommended)

Cloudflare is the best free DNS host — fast propagation (often under 2 minutes), a clean dashboard, and the orange-cloud proxy that hides your origin server's IP and provides DDoS protection. Even if you bought your domain elsewhere, you can use Cloudflare for DNS.

The orange cloud vs grey cloud distinction:

• •Orange cloud (proxied): Traffic goes through Cloudflare first. They cache content, block attacks, and hide your server's real IP. Best for websites.
• •Grey cloud (DNS only): Traffic goes directly to your server. Use this for email (MX records), SSH, game servers, or anything that isn't HTTP/HTTPS.

See our full Cloudflare guide for detailed setup instructions.

Step 6. Keeping Your Domain Safe

• •Enable auto-renew. This is the single most important thing. A lapsed domain can cost you your entire online presence.
• •Use a strong, unique password on your registrar account. If someone gets into your registrar, they can transfer your domain away.
• •Enable registrar lock (sometimes called domain lock or transfer lock). This prevents unauthorised transfers — it's on by default at good registrars.
• •Keep domain and DNS separate. Buy your domain from a registrar, manage DNS on Cloudflare. If one account is compromised, the other is still protected.