150-250ms
Generic Warm Start
Instant attach to a pre-booted pool browser. Best for general scraping, stateless agents, and fast testing. Happens when your request has no specific identity or storage requirements.
Benchmarks
Sub-second browser starts.
Cloud browsers usually take seconds to boot. BrowserCity gets your agents clicking in milliseconds. Here are our real-world latency numbers—measured from the moment your request hits our edge until the remote browser is primed and ready to navigate.
The Numbers
"Warm" is not just one number.
We keep a massive pool of browsers pre-warmed and ready to go. But depending on how much custom state you need to inject before starting, your startup time will vary. Here is exactly what to expect.
~600ms
Custom Warm Start
Applying a specific stealth fingerprint or injecting localStorage state before handing you the session.
~1.5s
Cold Start Fallback
The worst-case scenario. If a massive traffic spike temporarily outpaces our self-adaptive warming pool, we boot a fresh runtime in about 1.5 seconds.
Methodology
Beyond "Time to First Byte"
A benchmark is only useful if it measures the full journey. Here is exactly how we measure our infrastructure performance.
From request to readiness
We measure the entire journey. Our metrics capture the time from when your API request arrives to the exact moment the remote browser is started, primed, and fully ready to navigate via MCP or Playwright.
Accounting for identity setup
Spinning up a container is fast, but shaping it to match a specific device or injecting state takes time. We explicitly separate generic warm starts from custom ones so you know exactly what your specific payload costs.
Cold fallbacks
Our warm pool uses a self-adaptive algorithm to match supply with demand. But if an unpredictable traffic spike drains the pool, you fall back to a 1.5s cold start—not a queued timeout.
Experience the speed
Stop waiting for browsers to boot.
Connect Playwright, your MCP client, or trigger a REST action and feel the sub-250ms difference for yourself.
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