89%
lighter page
We cut the Snorkel.com customizer page weight by 89% and hit 100% Lighthouse accessibility, shipped in a 10-day final-mile launch for the Bitcoin 2026 HashTub debut, with zero checkout regressions.
Read the Snorkel story →Proof, not promises
We optimize against real measurements and ship the work. Here are two examples.
Since 2018
performance partner
We have run performance and infrastructure for Popmenu, a SaaS platform serving thousands of restaurant locations, holding Core Web Vitals steady as the product keeps growing.
Read the Popmenu story →How ShakaPerf proves a gain
Four stages, run automatically in your pipeline, from a Docker image to a guarded main branch.
01
Containerize
We wrap your app in a Docker image with one exposed port, and you write a single Playwright test. That one test drives every check that follows.
02
A/B test
Control and experiment branches run simultaneously in separate containers, sampled together so shared CPU noise cancels, then compared with a paired Wilcoxon test. You get trustworthy p-values without a quiet machine or a dedicated CI box.
03
Prove
Only changes that move the numbers ship. Visual, accessibility, and SEO checks run in the same pass, so speed never costs you correctness.
04
Guard
Once ShakaPerf is in CI, it watches your main branch and flags performance regressions automatically, before they reach production.
What ShakaPerf does
A measurement harness for the whole team: fast to adopt, honest about results, and stack-agnostic.
One test, every check
Write one Playwright test and get performance benchmarks, visual regression, accessibility, and network-activity checks from the same definition.
Statistically rigorous A/B testing
Paired Wilcoxon analysis with real p-values, adjustable sensitivity, and CPU-noise cancellation, so results hold up without a dedicated CI box.
Visual regression detection
Screenshot comparison between main and feature branches, so an optimization never silently breaks the UI.
Stack agnostic
If it ships in a Docker container, ShakaPerf measures and optimizes it. Rails, Node, Python, Go, no rewrite required.
Accessibility and SEO tests
WCAG 2.0 to 2.2 at levels A and AA, plus best practices. Every optimization stays SEO-compliant.
Automatic regression detection
No gradual degradation from entropy and rapid development. Your main branch stays fast.
Use it yourself, or let us run it
ShakaPerf is source-available: read the docs, browse the code on GitHub, and self-host it. Or skip the setup and book an audit, and our team runs it end to end and ships the wins.