Analyze a webpage using a given URL to suggest optimized URL, Title, and Description based on LSI and high-search-volume keywords. 来源：https://prompts.chat/prompts/cmjwwtwe9000cih041fb6ae9t
Checks a page's HTML source for the tags link previews are built from - title and description length, rel=canonical, og:title/description/type/url/site_name/locale, og:image size, aspect, alt and SVG, twitter:card and handles. Flags relative/http:// URLs, tracking parameters, theme + SEO plugin duplicates, tags in <body> and unrendered {{ }} placeholders, and returns a fixed <head> block. Includes an offline stdlib Python checker with --self-test. 来源：https://prompts.chat/prompts/cmvw34oc30001la0888uhvm7n
Checks a site's robots.txt and XML sitemap offline the way Google reads them. Picks the crawler's group, resolves longest-match Allow and Disallow with wildcards, and tests the URLs that must be crawlable or blocked. Flags whole-site blocks, sitemap URLs that robots.txt blocks, blocked CSS and JS, unsupported noindex and crawl-delay lines, off-site, duplicate or invalid sitemap entries. Includes a stdlib Python checker with --self-test. 来源：https://prompts.chat/prompts/cmvknfgw20009jh08c4lzkn3f
