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ResearchSeptember 18, 2025· 7 min read
Benchmarking remote browsers
How we measure session start time, throughput, and stability — and what the numbers say.
MT
Marco T.
Engineering
You cannot improve what you do not measure. We built a harness that hammers remote browsers with realistic work and reports the numbers that actually matter to an agent.
The metrics that matter
- Time from create to first navigation
- Sustained pages per minute under load
- Session survival over long runs
What we learned
Cold starts dominate the experience of short tasks, and stability dominates long ones. We tuned for both, and the average session start time is now under a second.
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