What is hidden content?
The hidden content is hidden content. The content is not visible to users as it only appears in the source code. Over the years, hidden content has been used to influence the rating of a website in order to improve its ranking. Among other things, additional keywords were hidden. However, it should be noted that hidden content is part of black hat SEO and is not permitted.
What significance does hidden content have for SEO?
Search engine optimizers and webmasters should avoid hidden content these days. The crawlers have become smarter and can distinguish between visible and hidden content. If an attempt at manipulation is discovered, a penalty will be imposed. Penalization of the website in the search results or complete exclusion would hit a website hard. This is why this variant is now rarely or never used.
However, it should be noted that there is also permitted hidden content. This includes the alt tags for images. If the browser can display an image correctly, the alt tags are not visible to users. It is possible to include additional keywords in the alt tags of the pictures without being penalized. However, the use of keywords should also be limited in the tags. If keyword stuffing (mass use of keys) is detected by Google, an attempt at manipulation is also assumed and measures are taken.
