What Actually Happens When You Click a Link

Between the click and the page appearing, several small steps run in under a second. Knowing them helps you read error messages and spot when something is off.

The name has to become a number

A web address like example.com is for humans. Computers find each other using numeric addresses, so the first job is translation. That translation is handled by the Domain Name System, often called the internet's phone book: you give it a name, it returns the address your device should contact.

The steps in order

1. Your device checks whether it already knows the address from a recent visit (its cache).
2. If not, it asks a DNS resolver, usually run by your internet provider or a public service.
3. The resolver returns the numeric address.
4. Your device opens a connection to that address and requests the page.
5. The server sends the page back, and your browser assembles and displays it.

Why this helps you

• "Server not found" usually means the name step failed, not that the whole internet is down.
• A page that loads on mobile data but not home Wi-Fi often points at a DNS or router problem at home.
• Clearing a cache can fix a site that moved to a new address while your device remembered the old one.

A quiet security point

Because the name step decides where you actually go, it matters that the address bar shows the name you expect and a padlock for a secure connection. A link's visible text can say one thing while it points somewhere else, so it is worth glancing at where you have truly landed.

When a page will not load

Knowing the steps turns a vague "the internet is broken" into a short checklist. If one site fails but others work, the problem is probably that site, not you. If everything fails on one device but works on another, suspect that device. If nothing works anywhere in the home, the modem or the provider is the likely culprit. Trying the same address on mobile data is a quick way to tell a home-network problem from a wider one. A page that used to work and suddenly stops, while everything else is fine, often means the site itself changed or is temporarily down, which is nothing you can fix from your end. None of this needs special tools, just the habit of changing one thing at a time and noticing what that reveals.

None of this requires technical tools. The value is in the mental model: a name is looked up, turned into an address, and then a connection is made. Most "the internet is broken" moments are really one of those steps failing.

Last checked 2026-11-10