# links.confirmExternal

Part of [Links](https://kernstra.com/docs/web-sdk/config/links) in the Kernstra Web SDK 1.0.0 configuration reference.

- Type: `boolean`
- Default: `true`
- Page: https://kernstra.com/docs/web-sdk/config/links/confirmexternal

Ask before a link leaves the document: a small dialog names the site and shows the full address (or the addressee of a `mailto:`, the number of a `tel:`) and waits for the reader to confirm, since a document written by someone else can put any address under any words. `false` opens web links on the first click. No longer applies once `callbacks.onExternalLink` is set.

Web page: https://kernstra.com/docs/web-sdk/config/links/confirmexternal