Which URL ending most likely indicates that a website provides reliable information com gov org?

".com" is a commercial internet Top Level Domain (TLD). This is an open TLD, meaning that any person or entity is permitted to register.

".org" is a 'organization' TLD. This is also an open TLD, meaning that any person or entity is permitted to register, not just organizations.

".gov" is a U.S. government TLD. This TLD is limited to U.S. governmental entities and agencies (mostly federal).

I personally have domain names of my own that end with ".com" and some domain names ending in ".org". I can put any information on them, whether true or not. I can'tregister a ".gov" domain name myself though.

So, in general, a ".gov" website provides more reliable or official information than a ".com" or a ".org". That's because a ".gov" website has to belong to a U.S. governmental entity or agency, which tend to provide more reliable information than a private individual or entity. (Of course, there are exceptions to this general rule.)