{"id":547,"date":"2026-10-26T03:48:42","date_gmt":"2026-10-26T03:48:42","guid":{"rendered":"https:\/\/sitefitters.com\/learn\/glossary\/bandwidth\/"},"modified":"2026-10-26T03:48:42","modified_gmt":"2026-10-26T03:48:42","slug":"bandwidth","status":"publish","type":"page","link":"https:\/\/sitefitters.com\/fr\/learn\/glossary\/bandwidth\/","title":{"rendered":"Bande passante"},"content":{"rendered":"
Learn<\/a> \/ Glossary<\/a> \/ Hosting & Performance<\/a><\/div>

Bande passante Explained.<\/em><\/h1>
In one sentence<\/small>In web hosting, bandwidth usually means how much data your site can send visitors each month, though technically it means how much data can move at once.<\/div><\/div><\/section>

What It Is<\/h2>

Strictly speaking, bandwidth is the capacity of a connection: how much data can travel through it at one time, like the width of a highway. Hosting companies often use the word loosely to mean data transfer, the total amount of data your site sends visitors in a month. Every page view, image, video and download adds to that total, like the number of cars that drive the highway over a month.<\/p>

Why It Matters for Your Business<\/h2>

Most small-business sites use far less data than typical plans allow. Problems appear when a site hosts large files, such as videos or big PDF menus and catalogs, or gets a sudden surge of traffic. A restaurant whose site goes viral with a large uncompressed video on the homepage could hit a limit and see the site slowed, suspended or charged overage fees.<\/p>

Good to Know<\/h2>

Reduce the data your site uses by compressing images, hosting videos on a platform like YouTube or Vimeo and embedding them, and using a CDN. Plans marketed as "unlimited bandwidth" still have fair-use rules, so read the terms. If you expect a big promotion or press coverage, let your host know ahead of time.<\/p>

Related terms<\/h4>
CDN<\/a>Page speed<\/a>Stockage<\/a>Shared hosting<\/a>Media library<\/a><\/div><\/div>