Make WordPress faster, with measurement not guessing.

Is your WordPress slow? Find out what's slowing it down — instead of guessing. The F12 Profiler measures server, load time, assets, plugins and database, assigns a score and fixes the bottlenecks directly.

See F12 Profiler Optimization as a service
In short

WordPress usually gets slow from outdated or heavy plugins, poor database queries, large assets and missing caching. Instead of guessing, Forge12's F12 Profiler measures server, load time, assets, plugins and database, assigns a performance score (A–F) and delivers prioritized recommendations — plus integrated optimization tools from lazy loading to minification to page caching.

Why measure

Measure vs. guess.

Guess & stack pluginsAnother cache plugin rarely fixes the cause.
With F12 ProfilerScore A–F + prioritized actions.
Which plugin is slow? Unclear
Plugins
Plugin impact measured & visible
Slow queries stay hidden
Database
DB analysis reveals bottlenecks
Large, unoptimized files
Assets
Lazy loading & minification built in
No or wrong caching
Caching
Page cache & one-click optimizer
Trial and error
Approach
Score A–F + prioritized recommendations
Slow stays slow
Ergebnis
Root cause found & fixed

Slow sites cost revenue and rankings (Core Web Vitals). The first step is knowing WHAT is slowing you down.

01 · F12 Profiler

First measure, then optimize.

Analysis and optimization in one plugin — instead of five tools side by side.

AnalysisPerformance score A–FMeasures server, load time, assets, plugins and database and gives a clear score.
RecommendationsPrioritized actionsShows concretely what helps most — instead of trial and error.
AssetsLazy loading & minifyImages and scripts are lazy-loaded and minified.
CachingPage cache & optimizerIntegrated page cache and one-click optimizer for fast impact.
To the productF12 ProfilerPerformance analysis and optimization as a WordPress plugin.→ See F12 Profiler
02 · DIY or done for you

Use the plugin — or let us optimize.

You can measure and optimize yourself with F12 Profiler — or we take over the performance optimization as a service, including Core Web Vitals and ongoing monitoring.

  • Use F12 Profiler yourself (measure & optimize)
  • Or: performance optimization as a service
  • Improve Core Web Vitals specifically
  • Ongoing maintenance including monitoring
Optimization as a service Ongoing maintenance
WordPress performance: measure and optimize
FAQ

Frequently asked questions about WordPress performance.

01Why is my WordPress slow?

Common causes are outdated or heavy plugins, poor database queries, large unoptimized assets (images, scripts) and missing caching. The F12 Profiler measures exactly these and shows what slows you down most.

02Which plugin makes WordPress slow?

Instead of guessing, the F12 Profiler measures the impact of individual plugins and shows which ones load the page most heavily — the basis for acting precisely.

03What is the F12 Profiler?

F12 Profiler is a WordPress performance plugin by Forge12: it analyzes server, load time, assets, plugins and database, assigns a score from A to F and delivers prioritized recommendations. Integrated tools (lazy loading, minification, page cache) fix the bottlenecks directly.

04Do I also need a cache plugin?

F12 Profiler comes with an integrated page cache and a one-click optimizer — for many sites that's enough. For more complex setups we optimize more deeply as a service on request.

05Why does performance matter?

Slow sites cost revenue and rankings: Core Web Vitals are a Google factor, and every extra second of load time lowers conversion. Being fast pays straight into the business.

Still have a question?Write to the founder directly
5.037 Google reviews
Marc Wagner — Founder · Forge12 InteractiveMarc WagnerFounder · Forge12 Interactive
WORDPRESS PERFORMANCE

Make WordPress faster — plugin or service?

See F12 Profiler Optimization as a service