Plugins like Moz and SEOquake provide much of the on-page analysis quickly, as opposed to doing all of your research manually-thank goodness! HubSpot has a great tool called Website Grader that can check if your site is Mobile Responsive and has Viewports configured. Leave room for eventual hosting upgrades should your site make significant gains in popularity. While many old-school SEOs believe that link building techniques are now largely ineffective (or at least less effective than they once were), links are still critical to getting high rankings. The truth is that links are still the most important component of the search algorithm. No matter how useful its content may be, a site without links is far less likely to rank highly in organic search results.