F12
Profiler.
F12 Profiler analyzes server, load time, assets, plugins, and database, assigns a performance score (A–F), and provides prioritized recommendations. It also includes integrated optimization tools from lazy loading to minification to page caching and one-click optimizer.
Choose licenses.
Volume discount applied automatically. Renews yearly, upgrade anytime or cancel before it expires.
What it does.
In detail.
How it works.
Three steps. Five minutes tops — we timed it with a stopwatch.
In-depth analysis of server, PHP, database, plugins, assets, and PageSpeed – you know exactly where the problems lie.
Prioritized recommendations instead of trial & error. 30+ tools from lazy loading to critical CSS – all in one plugin.
One-click optimizer, scheduled crawling, automatic cleanup – your website stays fast permanently.
A look inside.
Questions that come up first.
01Do I need the Pro version?
The free version offers complete analysis plus around 12 optimization tools. Pro adds page caching, critical CSS, unused CSS, image optimization, script delay, and the one-click optimizer – ideal for maximum performance.
02Does the plugin slow down my site?
No. The analysis runs only in the admin; the frontend optimizations actively speed up the site. The page cache (Pro) can reduce load time by 80–95%.
03Does it work with my theme?
Yes, it is theme-agnostic. The frontend optimizations automatically compensate for typical theme weaknesses.
04Is the plugin GDPR compliant?
Yes. It does not store any personal data; the PageSpeed API only sends the URL to Google. Local Google Fonts (Pro) replaces external font requests with local files.
05How do I activate Pro?
Install Pro as a separate plugin (the free version remains active) and enter the license key under F12 Profiler → Settings → License.