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Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1MiB (48% reduction).
Compressing and resizing https://assets.exercism.io/assets/how-step-3-cdf396c1da68deb92f387de5d5e22001820630a09edabb819ad918d8768d912a.png could save 141.3KiB (89% reduction).
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Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://assets.exercism.io/assets/application-14914fb204ffdb38c5f0813d49be1b19a935d8ecb61c77527bce7a926f66f118.css (expiration not specified)
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Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Optimize CSS Delivery of the following:
https://assets.exercism.io/assets/application-14914fb204ffdb38c5f0813d49be1b19a935d8ecb61c77527bce7a926f66f118.css
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Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 600.3KiB (71% reduction).
Compressing https://assets.exercism.io/assets/application-4e02a3360d74804e6d575a266709f30692f9c8a98aec02091947a83b2626e54e.js could save 386.5KiB (65% reduction).
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