Most websites have writers, web developer, marketers, search engine optimizers, and network administrators coming together to create the site. These same people can help test it. Here’s how.
Favicon : Favicons are those little iconic images that show up in the address bar and tabs of your browser.
Titles and Meta Data : Your page title is the most important element for SEO and is also important so that users know what’s on the page. Make sure it changes on every page and relates to that page’s content.
Cross Browser Compatibility : Check to make sure the pages render well in common browsers.
Spelling, Grammar, Punctuation : Check for proper spelling, typos, and grammar site-wide.
Links : Make sure all internal and external links working proper.
Images : Make sure all display text renders on the image when you hover over it (the alt and title attribute). Make sure the images display correctly.
Validation : W3C valid code is the one thing you can do prior to launch to have some confidence around a search engine spider being able to crawl your site.
Analytics : Installing some sort of analytics tool is important for measuring statistics to see how your website performs and how successful your conversion rates are.
Sitemap : Adding a sitemap.xml file to your root directory allows the major search engines to easily index your website.
404 Page : When a 404 error occurs, make sure you have a custom page to help your visitor find something else of use, even if it wasn’t what they were looking for.
Site Speed : Check the size of your page sizes and their load time.
Forms : Check all forms Validation and its functionality