Headlark is an AI-powered tool that automatically generates SEO-ready titles, meta descriptions, link preview tags, structured data, and alt text for web pages on every publish. It integrates with build tools like Vite, Astro, and Netlify, as well as Webflow, via a webhook or a single CLI command. Headlark fact-checks generated content against the actual page to prevent invented numbers, emails, or dates. Results are cached per page version so unchanged pages are never billed twice. Plans start free for up to 25 pages, with paid tiers scaling to agency-level usage.