PerfObserveR — Performance, Cost & Topology. One Truth, Three Lenses.

Upload at least one data source. Everything else is optional — sensible defaults are applied when fields are blank.

Data Sources at least one WebPageTest JSON i — or any one source below Catchpoint JSON i optional HAR File NEW i browser DevTools export — universal source Lighthouse JSON i optional — adds Web Vitals scores & opportunities

Business & Cost Context all optional

Page Views per Month i

User Region i

CDN Setup

Origin Egress $/GB i

Conversion Rate % i enables $/conversion

First-Party Domains i comma-separated — auto-detected from site URL if blank

Field Data — Real Chrome Users auto-included

We embed Google's free CrUX Vis for the analyzed URL automatically — no setup, no API key. Shows 28-day historical trend of real Chrome user p75 LCP, INP, and CLS.

Advanced — paste a CrUX API key for inline histogram detail

CrUX API Key optional · we use our own server key by default — paste yours to use your own quota instead. Get one free at developer.chrome.com/docs/crux/api

Form Factor

With an API key we render an inline widget showing the % of users in good/needs-improvement/poor buckets per metric, plus a synthetic-vs-field delta — finer-grained than the embedded CrUX Vis chart.

Competitor Comparison all optional

Enter up to 2 direct competitor URLs. We'll pull their CrUX field data alongside yours and rank all three in a vs Competitors tab — no synthetic test needed.

Competitor 1 URL optional

Competitor 2 URL optional

CrUX only reports origins with sufficient real-user Chrome traffic. If a competitor has no data, their slot shows "No CrUX data" but your report is unaffected.

Run a real WebPageTest Instant Test via your Catchpoint WPT Pro key — full asset waterfall, Lighthouse, and CDN topology. Tests take 1–3 minutes; results are fetched automatically. Your key is used for the test only and never stored permanently.

API Key & URL required

WPT Pro / Catchpoint API Key i

Get one at LogicMonitor WPT Pro

URL to Test (include https://)

A real browser is launched from the selected node and loads your live site — same as a user visiting it from that location.

📱 Mobile (iPhone 16) 🖥 Desktop (Chrome)

Test Location

Region

Business Context all optional

Page Views per Month i

User Region i

CDN Setup

Conversion Rate % i

Competitor Comparison optional

Competitor 1

Competitor 2

Run a free Lighthouse-powered test via DebugBear — no API key required. Tests complete in 30–90 seconds; results appear automatically. Provides Web Vitals, category-level asset breakdown, and CDN cost estimates.

URL to Test required

Include https://. A Lighthouse test runs via Google infrastructure from the US East region.

📱 Mobile 🖥 Desktop

Business Context all optional

Page Views per Month i

User Region i

CDN Setup

Conversion Rate % i

Competitor Comparison optional

Provide a CrUX API key to enable real-user competitor benchmarking.

Competitor 1

Competitor 2

CrUX API Key i (optional — for real-user data)

Generate Report