Alt text (alternative text), also known as "alt attributes," “alt descriptions," or technically incorrectly as "alt tags,” are used within an HTML code to describe the appearance and function of an image on a page.
Alt text uses:
1. Adding alternative text to photos is first and foremost a principle of web accessibility. Visually impaired users using screen readers will be read an alt attribute to better understand an on-page image.
2. Alt text will be displayed in place of an image if an image file cannot be loaded.
3. Alt text provide better image context/descriptions to search engine crawlers, helping them to index an image properly.
The highlighted text shows the alt text (alt attribute) of the image at left.
The title tag is an HTML code tag that allows you to give a web page a title. This title can be found in the browser title bar, as well as in the search engine results pages (SERP).
It’s crucial to add and optimise your website’s title tags, as they play an essential role in terms of organic ranking (SEO). In fact, it is one of the main SEO hot areas, along with the URL, meta description tag, hN tag, ALT attribute and links (backlinks and internal links).
It is important to note that this title tag is limited in pixels and therefore in characters (512 pixels; approximately 55 characters).
See also: HTML tag, meta description tag, hN tag, ALT tag.
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