Custom HTML snippets apply across every page of the knowledge base site. When a snippet intended only to load a resource (such as a font/icon stylesheet) also contains visible markup, that markup silently renders on every page, which isn't obvious until after publishing. Suggested enhancement: When a Custom HTML snippet is added or updated, detect visible HTML elements in the snippet and show a warning that this content will appear on every page of the site. Benefit: Users get immediate visibility into unintended sitewide rendering before it affects their live site, reducing troubleshooting time after publishing.