Seriema – Site Speed Breakdown

Description

Your site is slow. But WHICH plugin is the problem?

You have several plugins installed. One of them is costing you visitors, rankings and sales – but WordPress won’t tell you which one. This is the plugin that will.

Click Run Scan and in under 30 seconds you get a ranked list of every active plugin with a speed grade from A to F and a plain-language verdict like:

“Your gallery plugin is the main cause of your slowdown, adding approximately 812 ms to every page load.”

No waterfall charts, no stack traces, no developer jargon – just a clear, actionable answer for site owners.

Unlike tools that score a plugin based on how recently it was updated or how popular it is, this one measures your site directly, in a real request, so the breakdown reflects what your specific combination of plugins is actually doing, not a general reputation score.

What it measures, per plugin

  • Load time – how long the plugin takes to boot on every single request
  • Hook time – how much work it does while your page is being built (self-time, so nested work is never double counted)
  • Database time – how many queries it runs and how long they take
  • Asset weight – how many KB of scripts and styles it adds to your pages
  • Memory – how much RAM it consumes

How it works

The scan loads your homepage exactly the way a logged-out visitor would, with a secure single-use token. During that one request, every plugin’s activity is measured and attributed. Your visitors are never affected – profiling only ever runs on the scan request itself.

So that every plugin can be measured from the start of that request, the plugin temporarily moves itself to the first position in your active plugins list while a scan you started is running, then restores your original order right after. Nothing is reordered automatically or at any other time.

Your last grade also follows you around the dashboard: a small badge in the admin bar always shows the current score, with a shortcut to re-scan or open Settings.

Perfect before and after

  • Installing a new plugin – check what it really costs
  • A plugin update – did it make things worse?
  • Buying faster hosting – maybe you just have one bad plugin
  • Installing a caching plugin – caching hides slowness; this finds it

Screenshots

Installation

  1. Upload the plugin files to the /wp-content/plugins/seriema-site-speed-breakdown directory, or install the plugin directly through the WordPress Plugins screen (Plugins > Add New > search for “Seriema”).
  2. Activate the plugin through the ‘Plugins’ screen in WordPress.
  3. Go to the Seriema Check > Scan menu in your WordPress dashboard.
  4. Click Run Scan to get your first per-plugin speed breakdown.

FAQ

Which plugin is slowing down my site?

That is exactly what this plugin finds out. Run a scan from the Seriema Check > Scan menu and you get a per-plugin breakdown of load time, database time, and asset weight, so you can identify the plugin causing slow loading instead of guessing.

Will this slow down my site?

No. Measurement code runs only during the scan request itself, which is a single page load triggered from your dashboard and protected by a single-use token. Normal visitor requests are completely untouched.

How accurate are the numbers?

Very useful, honestly presented. A warmup request is made first so caches are in a steady state, and we measure self-time (time spent inside a plugin’s own code, excluding work it delegates to others). Treat results as a reliable ranking and magnitude, not a lab benchmark – that’s why we show grades.

The scan says it produced no data

A full-page caching layer probably served a cached copy. Exclude requests containing nuvirro_sssb_profile from your cache, or temporarily enable your cache plugin’s “logged-in users bypass” and retry.

Does it work with caching plugins?

Yes – that’s the point. Caching hides slow plugins from your visitors sometimes (cache misses, checkouts, logged-in pages still pay full price). This plugin shows the true uncached cost.

Does it send any data anywhere?

No. The only HTTP request it ever makes is from your server to your own homepage. Nothing leaves your site.

Can I scan a URL other than my homepage?

Yes. Go to Seriema Check > Settings and set a custom scan URL (Scan URL field). It must be a URL on your own site.

Does it change my plugin order?

Only while a scan is running, and only when you click Run Scan. To measure how long every other plugin takes to load, it has to be awake before they are, so it temporarily moves itself to the first position in the active plugins list and puts your original order back as soon as the scan finishes. It never changes the order at any other time, and it never activates or deactivates any plugin. The same explanation is shown under the Run Scan button.

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Contributors & Developers

“Seriema – Site Speed Breakdown” is open source software. The following people have contributed to this plugin.

Contributors

Changelog

1.0.0

  • Initial release.