# Setting up ## Setting up your account You must use a valid domain for your website. If you are creating a test account and running your store locally, you must use a valid TLD as using `localhost` is not supported. {% hint style="warning" %} You cannot use the following domains as they are reserved by the IANA. * `.test` * `.example` * `.localhost` * `.invalid` {% endhint %} We recommend using a valid TLD that is aliased to `localhost` for testing purposes. You will need to edit your operating-system dependent hosts file to add an alias for the domain you are using. ## Setting up the catalog sync While Nosto crawls sites to replicate the product catalog, it is unable to do so on SPAs. In order to synchronise your product catalog with Nosto, you'll need to [leverage the product API](/techdocs/apis/rest/products/updating-products-using-the-products-api.md) to keep the Nosto catalog in sync. **Note:** This step must be completed prior to proceeding with the implementation. Without this step, it will be troublesome to preview and debug the recommendations. ## Including the script To start tracking visits and content the Nosto script needs to be active on all pages within the store. Replace the account-id in the snippet below with your own account-id and place the code within the `` section of your DOM. You can find your account-id from the admin. The JS comprises of three parts - the first is the "stub" (which allows API usage prior to the script being loaded), the second is the "autoload" configuration (which prevents Nosto from automatically initiating once loaded.) and finally the Nosto script is loaded. ```markup ``` **Note:** The script and the snippet should be added as high up in the `` portion of the page so the connection is initialized as soon as possible. As the script is flagged `async`, the page load isn’t delayed. **Note:** This needs to exist on every page. Alternatively to the script injection Nosto can also be used as a library dependency in your Javascript application via the following utility library [Nosto Js](https://github.com/Nosto/nosto-js) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.nosto.com/techdocs/apis/frontend/implementation-guide-session-api/spa-basics-setting-up.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.