Could you please give add some detail? I would assume any site ending in .com would need to be checked for reliability due to the fact anyone can have a .com, but a site such as edu is more trustworthy.
Additional research is needed since due to the terminations of internet addresses we can clearly see that the other pages belong to educational entities, government and even global organizations, so from the beginning they would be more reliable internet addresses than one that only ends : .com
