PHP SEO

A simple PHP library that helps developers do better on-page SEO. It generates sitemaps, including image, video, news and multilingual ones, builds Rich Results schema.org markup as JSON-LD, handles robots.txt, and submits URLs to search engines for instant indexing through the Google Indexing API and the IndexNow protocol. Documentation covers installation, basic usage, options, URL methods and advanced features for each sitemap type. The topics include metatags, schema-org and llms.txt, and contributions to its llms.txt support are welcome. Requires PHP 8. MIT licensed and free to use. It is aimed at developers who want a single dependency for the technical parts of on-page SEO, from sitemaps to schema and indexing requests, without relying on a plugin for a particular framework.