Another non-standard meta element that is not supported by Google is the meta keywords element. There is no reference to it at the W3C.org and it was never a part of the official HTML standards.

Meta tags are levers of control – not just code. Use them to boost visibility, drive clicks, and shape how AI sees your content.

Google has been outspoken about not being a fan of the LLMS.txt file. Now, Gary Illyes from Google said it is a lot like the keywords meta tag in the early days and we all know how that went.