NewOct 18
A Playground for test releases
Type in made-up numbers for a few releases and watch the verdict react, using the same rules as real releases. Nothing is saved.
What’s new
Shipped, release by release.
What we added to CodeGecko, newest first. Every change ships to every project, no setup needed unless it says so.
October 2026
ImprovedOct 18
Guided tours in the dashboard
A short walkthrough the first time you open Releases, a release report and a metric page. Replay it any time from the account menu.
NewOct 15
Third-party cost on every release
See the bytes and main-thread blocking that came from other domains, with new domains flagged. It explains a slowdown; it never decides the verdict on its own.
What’s measuredPage weight · /products/:slug
v1.0.7 vs v1.0.6JS460 kB · +48
CSS64 kB
Images790 kB
3rd party181 kB · +61
NewOct 15
The commits behind each release
Each release lists the commits that shipped in it, so a regression points straight at the change that caused it.
NewOct 14
Page weight and JavaScript errors
Every release report now shows what each page shipped and whether it broke. When a page gets slower, you see whether the bytes grew or errors went up.
- JS, CSS, image and font bytes per page, with the growth marked
- Share of visits with an error, and messages new in this release
NewOct 14
Long animation frames
See how long the page froze and which script was behind most of it. Measured in Chrome and Edge, and counted toward the verdict once there’s enough data.
MethodologyLong animation frames · one visit
Most blocking from reviews-widget.js
ImprovedOct 14
Load steps next to every regression
When a page gets slower, the report splits the load into DNS, connect, server, download and DOM ready, so you can see where the time went.
Load steps · LCP regressed
DNS+0ms
Connect+2ms
Server+8ms
Download+8ms
DOM ready+102ms
ImprovedOct 14
A page for every metric
Open any metric from a release report to see how it moved release by release, with each deploy marked by its verdict.
ImprovedOct 13
Health badges
Good, Needs improvement and Poor, from Google’s Core Web Vitals ranges, now sit next to every metric. They show where a metric stands; the verdict still shows how it moved.
ImprovedOct 13
Your own page groups
Pages are grouped automatically. Set your own groups with data-routes, or merge pages in the dashboard so quiet pages count together and reach a verdict sooner.
In <head>Optional
<script async src="…/collector.js" data-routes="/blog/:post, /docs/:page"></script>
LaunchOct 13
The first version of CodeGecko
Real-user Core Web Vitals, compared release by release. A script tag collects visits, one CI step registers each deploy by its commit, and your second release gets the first verdict.
How it works