What Google says about "javascript async"

🎥 YouTube Videos 2

Async or defer: which JavaScript strategy truly optimizes your crawl budget?

Google 🎥 YouTube Jan 2018 ★★★

Pour le JavaScript, vous pouvez utiliser l'attribut async ou defer. Async télécharge et exécute le script pendant le parsing HTML, réduisant...

Is it true that using async and defer on your scripts really makes a difference or is it just a facade of optimization?

Google 🎥 YouTube Jan 2018 ★★★

Utiliser async ou defer pour charger les scripts JavaScript permet de ne pas bloquer le rendu de la page pendant le chargement....

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What Google says about « javascript async »