Our detectives are back with the following intel on this WordPress site
The site is using the schluesseldienst-24-h theme by Underscores.me .
We could identify 2 plugins (there might be more) - All in One SEO – Best WordPress SEO Plugin – Easily Improve SEO Rankings & Increase Traffic and Limit Login Attempts Reloaded
Description
The original WordPress SEO plugin. Improve your WordPress SEO rankings and traffic with our comprehensive SEO tools and smart SEO optimizations.
Block excessive login attempts and protect your site against brute force attacks. Simple, yet powerful tools to improve site performance.