Free cache plugins can provide a basic solution to speed up your website, but they have limitations, making them often not the ideal choice.
Image Optimization
Most free cache plugins don’t offer image optimization because it requires too much computing power and can’t be sustained without generating revenue. Since images are one of the biggest components of a website, not optimizing them can significantly slow down your site.
CSS Optimization
Proper CSS optimization requires even more expensive infrastructure than image optimization. Therefore, generating Critical CSS is not available or only limited in free plugins.
JavaScript Optimization
Many cache plugins simply delay JavaScript loading, which can be managed with free plugins. However, this method is outdated and delaying all JavaScripts can lead to problems. Additionally, modern and more effective optimization technologies are now available, such as those used by Swift Performance AI.
Font Optimization
Currently, real font optimization is only possible with Swift Performance, and it requires similar resources to image and CSS optimization, which can’t be effectively implemented in a free plugin.
Support and Development
It’s clear that both support and development are only sustainably financed if we’re talking about paid plugins. While there are free projects developed by communities, usually neither the intensity of development nor the support compares to that offered by paid plugins.
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