How to compress images: A web designer's guide

The average speed of a modern internet connection would sound very futuristic to web masters of the past. Back in the early days of the web, the amount of transferred data was crucial, both in terms of time and cost, therefore everyone involved in hosting something online tried to make images smaller. 

Ironically, the problem has not gone away nowadays. Each time you visit a script-heavy web site (such as mainstream world news), it often pulls a dozen megabytes of JavaScript code, images, videos and whatnot. It may still be painfully slow and even cost a pretty penny for some mobile data users (this shouldn't be a problem if you use a decent website builder, and good web hosting should keep an eye on it for you).

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