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An assertion library for E2E testing and real user monitoring

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HN · launched Jul 3, 2026 · 8 upvotes (top 54%) · 0 views

Niche: automated software testing tools · 186 launches, 13 in the last 7 days ▲ +8% · Explore this niche →

Category and tags

  • Horizontal
  • Observability & eval
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

Yes It is a TypeScript assertion library wrapping browser Performance and Web Vitals APIs for use in E2E testing harnesses and web clients.

Discussion

2 comments analyzed.

Competitors

Other products that read as similar to this one : 3087 launches clear the similarity bar, closest 8 shown.

Attention rank: #1601 of 3088 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 245 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.