HubSpot uses web crawlers to provide you with up-to-date, real-time information in your HubSpot's analytics tools, and to display live previews of your pages.
If you're using third-party analytics software like Google Analytics, your analytics data may include visits from HubSpot crawlers.
Please note: any HubSpot analytics (e.g. the data in the traffic analytics tool) already exclude visits from HubSpot crawlers.
To have a cleaner view of your analytics data, you can filter out visits from HubSpot crawlers. An example of a domain used for HubSpot crawlers is hs-sites.origin.hubspot.net. Your third-party analytics software should also be able to identify domains of other crawlers.
The steps to exlude a specific domain depend on the software you're using. If you're using Google Analytics, this documentation may help you with setting up a filter to exclude certain domains.