How I can verify the quality of architectural and coding of a web project?

I'm not a programmer and would like to outsource the creation a website. How I can verify the source code is in line with industry standards and best coding practices. Basically, How I can prove or validate that the work is of high quality (ie, scalability, SEO, independent CDN, the architectural integrity of database, etc)? Is there software available for download or I have to hire someone to review the code? I've heard of a program called "style police" for c # development. Is there a php? Would one of the tools is sufficient for my needs? Thanks

The W3C validator available that explores various through the source file (s) and validate if there are errors, breaking the rules, etc. As for this by marking / HTML validator: http://validator.w3.org/ And then to more validators: http://www.w3.org/QA/Tools/

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