How can I tell if a website / URL is safe?

While there is no absolute guarantee in an ever-evolving digital landscape, the following URL scanning resources are available to help you make informed decisions when browsing the Web.

https://virustotal.com (use the "URL" or "Search" options)
https://safeweb.norton.com/ 
https://global.sitesafety.trendmicro.com/ 
https://transparencyreport.google.com/safe-browsing/search