Blog
Product updates, engineering insights, and announcements
EC2 Spot Instances for Testing: Fault-Tolerant Tests Are a Perfect Fit
EC2 Spot instances cost 60–90% less than on-demand, but they can be interrupted. Playwright tests are short, stateless, and retryable — making them an ideal Spot workload. Here's how to use Spot for testing safely.
PostWhy Your Test Data Shouldn't Leave Your Cloud
Playwright traces contain DOM snapshots, network logs, and screenshots — data that often includes PII, internal product state, and API secrets. Here's why test data sovereignty matters and how BYOC testing solves it.
PostThe True Cost of Running Playwright Tests at Scale
A detailed cost comparison of running 1,000+ Playwright tests per day across GitHub Actions, BrowserStack, Sauce Labs, and BYOC infrastructure on AWS EC2 Spot instances.
PostHow to Use the Playwright Trace Viewer for Test Debugging
A practical guide to opening Playwright traces, understanding each panel, and how TraceLoom surfaces traces per test so you can debug failures without re-running them.
PostHow to Debug Playwright Test Failures with Trace Files
Playwright trace files capture DOM snapshots, network requests, console logs, and screenshots for every test action. Learn how to enable traces, open them in the trace viewer, and systematically debug failures.
PostPlaywright Test Sharding: How to Split Tests Across Workers
Learn how Playwright's built-in --shard flag works, when to use duration-aware sharding, and how to distribute tests across parallel workers for faster CI runs.
PostWhat is BYOC Testing? A Guide for Engineering Teams
BYOC (Bring Your Own Cloud) testing runs distributed tests on infrastructure you own and control. Learn how BYOC works, why it matters for compliance, and how it compares to managed testing platforms.
PostHow to Run Playwright Tests in Parallel on AWS Spot Instances
A practical guide to distributing Playwright test suites across EC2 Spot instances — covering sharding strategy, spot interruption handling, trace storage in S3, and total cost at scale.
ChangelogTraceLoom v1.0 — Launch
TraceLoom v1.0 is here. Distributed Playwright testing in your own AWS account.
AnnouncementWhy We Built TraceLoom
The story behind TraceLoom — why we built a BYOC platform for distributed Playwright testing.