Couldn't find this anywhere, so hoping for some assistance here.
I'm doing my master thesis and I as an example I need to reference a lot of information from European Space Agency website.
I'm using overleaf, the tufte book style and a reference in the references.bib could look like this.
@misc{sent2radio,
author = {ESA - Sentinel Online},
title = {{Sentinel-2} Radoiometric Resolutions},
year = 2019,
url = {\url{https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/resolutions/radiometric}},
urldate = {2019-14-01}
}
When I cite that, it is perfectly added to the page and the bottom reference list. The URL is not displayed anywhere, as is common. However, my supervisor has requested that they are able to click the reference in the end of my document, when it turns into a PDF file. So they can check references by going straight to the link. See the image I have attached. Those references I framed in blue, all have individual URL's attached to them and should be directly clickable.
I hope my question is clear enough. Thanks for your time.

biblatexthenurl = {\url{https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/resolutions/radiometric}},is wrong, if you are using a BibTeX style it is almost certainly wrong. Theurlfield usually contains only the URL in verbatim, no escaping or formatting is applied and no\urlwrapper is needed. Tryurl = {https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/resolutions/radiometric},instead. – moewe Jan 25 '19 at 12:57