Almost 40% of websites are built with WordPress nowadays.
I think it would be an exceptional improvement if Sitebulb could offer dedicated hints regarding some areas of auditing in case of sites built with WordPress.
For example, regarding the security hints section, specific checks may be carried out such as those offered by the Ninja Security plugin (https://it.wordpress.org/plugins/security-ninja/).
Under performance section (it's just another example obiously) it could be tested the presence of caching plugins and so on about SEO...
I'm pretty sure Sitebulb developers could find a lot of ideas about that but, in any case, I think that would absolutely be a mistake (technical and also strategic) not having a little special attention for WordPress websites.