> For the complete documentation index, see [llms.txt](https://docs.umbraco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.umbraco.com/sustainability-best-practices/frontend.md).

# Frontend

- [Frontend Overview](https://docs.umbraco.com/sustainability-best-practices/frontend/frontend.md): Here you can learn about how to optimize assets, implement a mobile-first strategy and other suggestions.
- [Page weight budget](https://docs.umbraco.com/sustainability-best-practices/frontend/page-weight-budgets.md)
- [Image optimization](https://docs.umbraco.com/sustainability-best-practices/frontend/image-optimisation.md)
- [Asset optimization](https://docs.umbraco.com/sustainability-best-practices/frontend/assets-optimisation.md)
- [Limit use of 3rd parties](https://docs.umbraco.com/sustainability-best-practices/frontend/limit-use-of-3rd-parties.md)
- [Lazyload resources](https://docs.umbraco.com/sustainability-best-practices/frontend/lazy-load-resources.md)
- [Mobile first](https://docs.umbraco.com/sustainability-best-practices/frontend/mobile-first.md)


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