When you are in research mode, it is best to download the images of records you use on any site. This way you have the images.
Why:
the site may go dormant; (Please see Internet archive, if no longer available)
the site may no longer have the rights to display the images;
or you may decide or need to cancel your membership to the subscription.
Save digital media to your own devices or to the cloud if you have a subscription. If you have the capability to link it to your on or off line tree in your “account,” will require you to maintain that access.