User Experience Performance Single Region Diagnostic Results

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. [Learn more about the `lang` attribute].

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. [Learn how to reduce unused CSS].

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Form elements without effective labels can create frustrating experiences for screen reader users. [Learn more about the `select` element].

Specifying a doctype prevents the browser from switching to quirks-mode. [Learn more about the doctype declaration].