Performance report for youtube.com

The H1 tag represents the main heading of your site and each page on your site should have exactly one, and not more than one.

Alt tags in images are used to describe what the image contains. They are crucial for making your images more comprehensible to search engines, explaining to users what the image is when it fails to load, and allowing some screen readers to interpret your images. Therefore, having alt tags for your images is very important for the health of your site.

The file sizes of scripts loaded on your site are one of the key factors affecting its loading time and overall performance. Depending on the overall size of the site, it is recommended that they be less than 100KB.

The Meta Title represents the title of the page in search results and tabs. Ideally, it should be between 50-60 characters.

Just like a well-organized Word document, a healthy web page should have its headings planned in an orderly fashion. Accordingly, you should designate only one main heading (H1) for each page and if there are subheadings, they should be appropriately ordered (H2, H3, etc.).

Specifying the space that images will occupy before they are loaded is very important for page layout. Therefore, the area that images will occupy should be defined in advance before they are loaded.

Displays browser console errors that occur while your site is loading. Some of these errors may be critical, while others might be less significant.

OG tags, also known as Open Graph Protocol, are used to define the title, description, image, and link information that appears when your website is shared on social media. Having these tags on your site makes your shares on social media more effective.