Who shoud I trust?

I am regular user of google search (who isn’t?) and also use AVG’s FREE anti virus. They serve me well most of the time. Few months ago AVG upgraded their software to ver. 8 which had one of the new feature of showing if it is safe to visit a site I search on Google.

AVG scanning the sites which google searched

AVG showing in green the Safe sites

Everything went well till one day I see this while searching a driver’s service on google.

So now Google says the site is harmful to visit for these possible reasons

while AVG says its safe to view the site.

So I tried to check a site which will most likely be harmful to visit – a software cracks site. I do a search and get a completely different result this time around.

Google has no issue with it but AVG has advised me against visiting the site.

So who should I trust now?