When you upgrade to the Starter, CMS, or Business plan, you will be able to link with the following external services.
*API Connect (Beat) is currently available for all the plans, but it might be limited to the paid plans only in the future.
Marketing
Facebook Pixel (for Facebook ads)
HubSpot Tracking (Beta)
Customer Success
API Connect (Beta)
Notion
Airtable
MicroCMS
You can set the linkage in the "Apps" menu from the dashboard.
This "External APPs Linkage" is only available in the paid plan except API connect (Beta), but if you want to embed external web services such as Google maps, formrun, SlideShare, etc. into your public website, you can use it even with the Free plan using an iframe box. For more details, check Embed Box.
GTA GA Google Tag Manager Google Search Console Google reCAPTCHA HubSpot