A CDN keeps copies of your site in many cities so visitors get it from somewhere close.
A content delivery network stores your files on servers around the world. A visitor in Houston pulls from Texas. A visitor in London pulls from Europe. Less distance means faster loading.
CDNs help most on heavy sites with many images and scripts. A light page benefits too, but it has less to speed up in the first place.
A Think Bright page is small enough that the biggest speed gains come from the file itself. Fewer requests and less weight matter more than any network trick.
A cache is a saved copy of something so it does not need to be fetched or built again.
Page weight is the total size of everything a page downloads, measured in kilobytes or megabytes.
Requests are the separate files a browser must fetch to show one page.
Hosting is the computer that keeps your website online and hands it to visitors when they type your address.
Find out in about a minute. Free, no sign-in, every line a measurement — then see your site reinvented. The Think Bright System does the work; a person reviews before go-live.
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