Laying out the streets…STEP 1 OF 3

Owl Web Diagnostic · Office #63,628

Find what's broken in any web app, effortlessly.

In the SEO and site audits neighborhood (Marketing and sales). In town since 5 Nov 2026.

Nobody has claimed this office yet. Tablif records every new product and gives it an office; when its owner claims it, the lights go on.

Is this yours? Claim it

What Tablif read on Owl Web Diagnostic's site

Owl Web Diagnostic describes itself as: “Owl Web Diagnostic - Chrome Web Store”

What it is

Calls itself “Extension”.

  • Calls itself: Extension
“Extension Developer Tools”

Where it puts itself

Rules out “ads”.

  • Says it will not: ads
“Owl Web Diagnostic watches the page from the moment it loads and puts everything that matters into one clean glass panel, ranked by what's actually wrong instead of dumped as raw logs.”
“No ads, nothing paid, nothing gated.”

What it costs

A free tier, free forever. No monthly or yearly plan. No one-time option.

  • One-time: no
  • Monthly: no
  • Yearly: no
  • Free plan: free forever
“No ads, nothing paid, nothing gated.”

Who it sells to

Made for Frontend and full-stack developers, Product owners and testers and QA engineers. In English.

  • Made for: Frontend and full-stack developers · Product owners and testers · QA engineers
  • Languages: English
“Frontend and full-stack developers who want answers faster”
“Product owners and testers who spot "Critical: 6 problems" and can hand it straight to a developer”

How it runs

A browser extension. Runs locally and works offline. Distributed through the Chrome Web Store. Built with Google Analytics.

  • Kind: extension
  • Runs where: on the device, offline
  • Distributed via: Chrome Web Store
  • Analytics: Google Analytics
“Add to Chrome”
“Everything runs locally in your browser.”

What it works with

Names Chrome, Google and 2 more on its pages.

  • Names: Chrome · Google · Lighthouse · +1
“Chrome”
“Google”

What it offers as proof

Live, no waitlist. Claims “4 users”. Instant signup.

  • Number claimed: 4 users
  • Instant signup: yes
“Add to Chrome”
“Extension Developer Tools 4 users”

Sources

Tablif read these pages, last on 5 Nov 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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