https://wordpress.org/support/plugin/wptags-4-metakeywords/
[WPtags 4 MetaKeywords] Support | WordPress.org
support wordpress
https://learn.microsoft.com/en-us/dotnet/api/system.web.ui.page.metakeywords?view=netframework-4.8.1&redirectedfrom=MSDN
Page.MetaKeywords Property (System.Web.UI) | Microsoft Learn
Gets or sets the content of the "keywords" meta element.
property systemweb uimicrosoftlearn