Audit websites that block our servers

How it works

1. 1. Install the extension from Chrome Web Store or Firefox AMO.
2. 2. Open app.metricspot.com and find an audit that failed because the site was unreachable.
3. 3. Click Retry with extension. The extension briefly opens the audited page in a tab, reads it, measures its real load speed, and closes the tab.
4. 4. MetricSpot analyzes the collected page and shows your full audit report.

What it does — and doesn't do

Full details in our privacy policy.

FAQ

Do I need a MetricSpot account?

Yes. The extension is only useful inside the MetricSpot app — it activates when an audit you started fails because the site blocked our servers.

What does the extension read?

Only the website you explicitly retry an audit for. For that one URL it reads the page HTML, the site's robots.txt and sitemap, response headers, and real load-speed metrics (TTFB, LCP, CLS) measured in your browser. It sends this only to app.metricspot.com.

Does it track my browsing?

No. It does not read your other tabs, your history, or anything you do outside the explicit retry action. It runs only on app.metricspot.com (to receive instructions) and on the audited URL (to read it once, then close the tab).

Why does it need access to all websites?

Because you choose which site to audit. The extension cannot know in advance which domain you'll pick, so it has to be allowed to read whichever site you ask it to audit. It only ever reads one site at a time, and only after you click retry.

Is it open source?

The full source ships inside the extension package (no remote code, no build step). You can unzip the .crx / .xpi and read every line.