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://www.sc-cours.club/feeds/posts/summary?max-results=1&alt=json-in-script&callback=hitungtotaldata (1 second)
https://buttons-config.sharethis.com/js/5b9994bfc265ef0011d174d4.js (60 seconds)
https://connect.facebook.net/fr_FR/sdk.js (20 minutes)
https://www.googletagservices.com/activeview/js/current/osd.js?cb=%2Fr20100101 (50 minutes)
https://www.googletagservices.com/activeview/js/current/osd_listener.js?cache=r20110914 (50 minutes)
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js (60 minutes)
https://platform-api.sharethis.com/js/sharethis.js (60 minutes)
https://t.sharethis.com/1/d/t.dhj?cid=c010&cls=B&dmn=www.sc-cours.club&rnd=1553287366753 (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
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.
Minifying https://connect.facebook.net/fr_FR/sdk.js could save 668B (39% reduction) after compression.
Minifying https://www.sc-cours.club/js/cookienotice.js could save 623B (31% reduction) after compression.
Your page has 1 blocking script resources. This causes a delay in rendering your page.
Approximately 1% 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.
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 (875B reduction).
Compressing https://3.bp.blogspot.com/-cyYjyiNbpQw/WVOUnB91ZVI/AAAAAAAADEw/50cy7b6Yyn80A-Smwy4ELMxGwGg4in2tACLcBGAs/w200-h150-c/chimie-des-solution.png could save 875B (11% reduction).
You have the above-the-fold content properly prioritized. Learn more about prioritizing visible content.