> For the complete documentation index, see [llms.txt](https://server-side.docs.sirdata.net/sirdata-server-side/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://server-side.docs.sirdata.net/sirdata-server-side/english-1/f.a.q-server-side/server-side-operation/tag-manager.md).

# Tag Manager

For now, Sirdata's Server-Side is only compatible with Google Tag Manager. It's the most widely used tool, with 98% of sites using GTM.