AuditBeacon is a web based page auditing tool that evaluates public URLs across search engine optimization (SEO), answer engine optimization (AEO), and generative engine optimization (GEO). It runs more than 50 checks in 13 categories, covering areas such as meta tags, headings, internal links, structured data, page speed signals, mobile readiness, answer targeting, readability, AI crawler access, citability, and entity and authority markup. Results include scores, grades, pass, warning, or fail statuses, and guidance for addressing issues. Users can paste a page URL to receive an audit, with no account required. Optional fields let them enter a target keyword to see where it appears in the title, meta description, URL, headings, body copy, and image alt text, or provide a competitor URL for a side by side comparison. Comparisons include overall and pillar scores, category results, and page facts such as word count, headings, internal links, and schema types. Checks are grouped into SEO, AEO, and GEO pillars. Categories average their checks, pillars average their categories, and the overall score is the mean of the three pillar scores. Grades range from A for scores of 90 or higher to F for scores below 60. AuditBeacon fetches pages through a serverless function and returns the report; its stated policy is that submitted URLs and other entered data are not saved, logged, or shared.