How a website works: a simple guide for businesses

A website is a set of connected pages, published on the internet under one address (the domain), that anyone can open in a browser. A web page is each of those pages: the home page, the services page, the contact page. For a business, the site is a shop that's open 24 hours a day: where people find you, get to know you and contact you.
If you're about to build or renew yours, understanding how it works helps you make better decisions and speak the same language as your provider. This guide explains it without jargon: what happens when someone opens your site, what it's made of, how it's built and what it needs after launch.
What happens when someone opens your site
When a person types yourcompany.cr or clicks a Google result, within a second or two this happens:
- The browser asks where the site is. The domain name system (DNS) translates
yourcompany.crinto the numeric address of the server where your site lives. - The browser asks that server for the page. The server is a computer that's always on, in a data center, that stores your site's files.
- The server responds with the page's content: text, structure, styles, images and code.
- The browser assembles the page on screen. If it's slow, it's almost always because the server takes too long to respond or because the page is too heavy (large images, a lot of code).
- Everything travels encrypted if the site uses HTTPS (the padlock in the browser), so nobody can read or alter what's sent, such as a form's data.
The parts of a website
1. The domain: your address
It's the name people type to reach you (yourcompany.cr) and the one after the @ in your email. It's paid yearly and should be in your company's name. See how to choose a domain name for your business.
2. Hosting: where it lives
It's the service that stores your site on a server and delivers it to each visitor. Good hosting is fast, always available, makes backups and has support. The cheapest usually costs you dearly in speed and downtime.
3. The code or platform: how it's built
Your site can be built with:
- A content management system like WordPress, which lets you edit text and photos from a dashboard (see what WordPress is, and its pros and cons).
- A rented platform like Wix or Shopify, where everything's included in exchange for a monthly fee (compare in Wix or your own website).
- Custom development, when the site needs its own features or integrations.
4. The design: how it looks and how it's used
Colors, typefaces, images and, above all, how the information is organized so the visitor understands what you do and what to do next. It must work perfectly on a phone, where most visits come from.
5. The content: what it says
Text, photos, videos, prices, frequently asked questions. It's what convinces the customer and what Google reads to decide when to show your site. No design makes up for generic content.
6. The features: what it does
Contact forms, a WhatsApp button, an online store, payments by SINPE Móvil or card, appointment booking, quote calculators. Each feature is chosen according to what you want the visitor to do.
How a website is built
1. Planning
- Goal: what the site should achieve (leads, bookings, sales) and how you'll measure it.
- Audience: who it speaks to and what they need to know to decide, and in which language.
- Structure: which pages it will have and what goes on each.
- Content: which text and photos exist and which need to be created.
2. Design
First an outline of each page (what goes where), then the visual design, applied to phone and desktop. It's the best moment for changes: they cost far less than after the code is written.
3. Development
The site is built: the design is turned into code or assembled on the chosen platform, the content is loaded and the features are connected (forms, payments, bookings).
4. Testing
Before publishing, it's checked on different browsers and phones, every form and payment is tested, speed is measured, and typos and broken links are fixed.
5. Launch
The domain is pointed at the hosting (the DNS change can take from a few hours up to 48 to show everywhere), HTTPS is turned on, Google Analytics and Search Console are installed and, if there was a previous site, its old addresses are redirected to the new ones so rankings aren't lost.
After launch
A site isn't "finished" the day it goes live.
Getting found
- SEO: pages built around what your customers search for, a Google Business Profile and useful content. Step by step in the SEO guide for Costa Rica.
- Ads, social media and your own network, especially at the start: a new site doesn't attract customers by magic.
Keeping it secure and working
- Updates to the platform, theme and plugins, if you use a content management system.
- Regular backups that can actually be restored.
- Renewals of the domain and hosting on time.
- Checking forms and payments now and then: a broken form can go weeks without anyone noticing.
Improving it with data
Check every month which pages people visit, where they come from, which searches bring them and how many leads it generates. That tells you what to improve: a title, a service page, the contact button, a new FAQ.
How we do it at WEB.CR
With more than 25 years of experience in web development, we handle every part: domain, hosting, design, development, content, launch and maintenance, with everything in your business's name. You can see an estimate for your site in the pricing calculator.
Questions about how your business's site should work? Book a free call and we'll explain it with your specific case.
Rather talk first? Book a free video call or price your project.


