Bandwidth is the amount of data transferred through your site per month (or per day). Each page view transfers data from server to browser: HTML, CSS, JS, images, video, and more. The sum of all this traffic is bandwidth. It's one of the main limits of hosting tariffs.
How bandwidth is calculated
Example: a typical WordPress page is 2 MB (HTML+images+JS). 1000 page views = 2 GB of bandwidth. 10,000 views = 20 GB. If your tariff is 100 GB/month, that fits roughly 50,000 page views.
E-commerce or video sites consume more bandwidth β a single page can be 5-15 MB.
What happens when bandwidth runs out
When the hosting bandwidth limit is hit, many providers temporarily suspend the site β visitors see a 503 or "Bandwidth Limit Exceeded" error. Others offer automatic upgrades (for extra payment). On Sayt.uz Sumi and Pro tariffs bandwidth is unlimited (under a fair-use policy).
Bandwidth-saving strategies
Use a CDN β Cloudflare is free (it serves your data from its edge instead of your origin). This reduces hosting bandwidth by 60-80%.
Image optimization β convert images to WebP or AVIF, enable lazy load. Saves 50% of bandwidth.
GZIP compression β if enabled on the server, files are compressed and shipped faster. Enable in cPanel: Optimize Website.
Browser cache β with Cache-Control headers the browser reuses old files without re-downloading.
Hotlink protection β if other sites use your images, that spends your bandwidth. Block via cPanel β Hotlink Protection.
Bandwidth monitoring
cPanel β "Bandwidth" β monthly traffic usage view. Graphs broken out by hour/day/month. AWStats or Webalizer β broader analysis.
Cloudflare dashboard β if you use Cloudflare, you see traffic split between your origin and what Cloudflare absorbed.
Sayt.uz practice
Sayt.uz tariff bandwidth limits: Basic Hosting 100 GB/month, Pro Hosting 1 TB/month, Premium and VPS unlimited (fair use). 99% of clients are nowhere near the limit β a typical WordPress site uses 10-50 GB monthly. E-commerce stores 100-500 GB. Video and content sites 500+ GB. Tip: if you approach your bandwidth limit, add Cloudflare free plan β it saves 60-80% of bandwidth.