18 image compression tools tested

When you're looking to boost your website's performance, some would recommend you jump straight into a detailed analysis of each page: the HTTP requests you're making, any redirects involved, the position of scripts and style sheets, and more.

But while there's no doubt that examining these issues can help, it's important to consider the basics first. In particular, are you sure that any graphics you're using are fully optimised for the web?

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After 15 years of software development experience covering everything from nuclear power to healthcare, Mike Williams now works as a freelance writer with a particular interest in security issues.