What Is Bandwidth and How Much Does Your Website Need?

When comparing hosting plans, you will see “bandwidth” listed alongside disk space. In hosting terms, bandwidth is the amount of data transferred between your website and its visitors over a period of time — usually measured per month. Every page, image and download a visitor loads uses a little of it.

A simple way to picture it

Imagine bandwidth as a motorway between your site and your visitors. Each visit sends data down that road. More visitors, and heavier pages, mean more traffic on the motorway — and more bandwidth used.

How much bandwidth do you need?

A rough guide: multiply your average page size by your monthly page views, then add headroom. In practice:

• Small sites and blogs use modest bandwidth — most plans cover them easily.
• Busy sites and shops with lots of images or downloads use more.
• Video or large file downloads use the most by far.

Many VernalWeb plans offer generous or unlimited bandwidth, so most websites never need to worry.

How to reduce bandwidth usage

• Optimize images — the biggest quick win. See optimizing images.
• Enable caching and compression — see leverage browser caching.
• Use a CDN to offload some delivery — see what is a CDN.
• Stop hotlinking so other sites do not use your bandwidth.

Frequently asked questions

What happens if I exceed my bandwidth?

Depending on your plan, your site may be temporarily limited until the next cycle, or you may be able to add more. Keep an eye on your resource usage.

Is bandwidth the same as disk space?

No. Disk space is how much you can store; bandwidth is how much data is transferred to visitors. They are separate limits.

Does “unlimited” bandwidth really mean unlimited?

It means there is no fixed cap for normal website use, within the plan’s fair-use policy. Extremely heavy use may still be subject to limits.