> For the complete documentation index, see [llms.txt](https://advanced-seo.michaelaerni.ch/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://advanced-seo.michaelaerni.ch/extending.md).

# Extending

- [Tokens](https://advanced-seo.michaelaerni.ch/extending/tokens.md): Register custom token normalizers for additional fieldtypes or add custom value tokens to the token input.
- [Sitemaps](https://advanced-seo.michaelaerni.ch/extending/sitemaps.md): Register custom sitemaps to add any Statamic or Laravel route to Advanced SEO's sitemap index.
- [Custom Routes](https://advanced-seo.michaelaerni.ch/extending/custom-routes.md): Add SEO support to custom Statamic or Laravel routes without reinventing the SEO implementation.
- [Events](https://advanced-seo.michaelaerni.ch/extending/events.md): Listen to Advanced SEO events to react to changes in SEO configuration and content data.