How web hosting affects SEO?

[sadianisar]

I would like to know that how web hosting affects SEO??

[fayeseom]

Yes. Which company you choose to host your website with does have an affect on where your website ranks in search engines. Choosing the right web hosting company doesn’t guarantee a rankings boost, but it does mean you avoid the consequences, and they can be significant ones, of choosing the wrong host. Therefore, you need to choose carefully and not base your decision on price alone.

[sanjalisharma89]

It certainly can make a difference, for some of the reasons that you've alluded to. If we break hosting's influence on ranking down to its 3 core factors, we have:

Security
Location (which ties into:)
Speed