Your page has no redirects. Learn more about avoiding landing page redirects.
You have compression enabled. Learn more about enabling compression.
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://cdn.ampproject.org/v0.js (50 minutes)
Your server responded quickly. Learn more about server response time optimization.
Your CSS is minified. Learn more about minifying CSS.
Your HTML is minified. Learn more about minifying HTML.
You have no render-blocking resources. Learn more about removing render-blocking resources.
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by https://developers.google.com/speed/docs/insights/OptimizeImages (1.3KiB reduction).
Compressing https://mens-en-gezondheid.infonu.nl/artikel-fotos/tartuffel/924141132754-thumb1.jpg could save 1.3KiB (17% reduction).
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
None of the final above-the-fold content could be rendered even with the full HTML response.