There are several tools that can check the performance of the web site and make the content creation easier.
If you work with Search engine optimization (SEO) you can find tips and links to useful tools here.
For analysing your pages, we have installed Google Analytics on all our websites. If you want access, create a ticket in My service portal or contact a member of iCat team. We also use Google Search Console, that shows how the site perform from a SEO perspective, and Google Tag Manager. You can get access via My service portal.
If you want to improve your content, and make it more attractive for users and search engines, you can use Siteimprove. This tools can check spelling mistakes, broken links and much more. Its also a user friendly tool. Contact Heidi [dot] Jokinen [at] fortum [dot] com (Heidi Jokinen) or Sami Näyhö for access.