> For the complete documentation index, see [llms.txt](https://docs.iadvize.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.iadvize.dev/use-cases/visitor-experience/authenticated-messaging/web-backend-implementation.md).

# Web backend implementation

The visitor authentication process consists of a creation of a signed and encrypted token forged on your backend and forwarded to the iAdvize tag through your frontend (website) in order for iAdvize to be able to recognize the visitor and display relative visitor and conversational data accordingly.