Crawls a property's pages and runs a technical on-page/SEO audit per URL: HTTP status, indexability (noindex / canonicalised), title & meta-description length, H1s, word count, canonical, internal/external links, image alt coverage, structured data, Open Graph, viewport, hreflang, and a scored list of issues by severity. Pass explicit urls, or omit them to audit the top pages by Search Console impressions. URLs must belong to the property. Fetches each page live and stops after about 50 seconds: when truncated is true, the pages in notAudited were not fetched, so call again with urls set to that list to finish.