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CodSpeed vs Firstier Disclose

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

CodSpeed compared with Firstier Disclose
DetailCodSpeed logo CodSpeedFirstier Disclose logo Firstier Disclose
What it doesContinuous performance testing for your CI that catches regressions before they reach production A drop-in widget that adds visible EU AI Act Article 50 AI-content labels to any site in one line
StageNot given Not given
FoundedNot given Not given
Based inFR DE
Pricing modelFreemium Not given
PricingNot given Free forever. No account, no backend, no usage limits.
Key features
  • Automatic benchmarking in CI
  • Low-noise performance data with variance below 1%
  • AI-enhanced differential flamegraphs
  • Automated performance fixes with Optimization Agent
  • GitHub integration
  • CPU, memory, and wall-time profiling
  • Bare-metal macro runners for isolated testing
  • Support for Rust, Python, Node.js, C++, Go, and Java
  • Performance gating and merge blocking
  • Official EU AI-label icons (AI, AI GENERATED, AI MODIFIED)
  • Content type detection (images, video, audio, articles, pages)
  • All 24 EU languages automatically
  • WCAG 2.2 AA accessibility with ARIA and keyboard support
  • Shadow DOM isolation for design independence
  • No network calls, cookies, or tracking
  • Machine-readable marking (schema.org + IPTC digitalSourceType)
  • MIT-licensed open source
  • Optional Stamp tool for embedded image watermarking
  • Self-hosting and CDN support
What makes it different
  • AI automatically identifies bottlenecks and proposes fixes
  • Integrates seamlessly into existing CI workflows and benchmark frameworks
  • Free for open-source projects and up to 5 users on private repos
  • Detects regressions before they reach production
  • Free forever with no account, backend, or per-domain limits
  • Single line of code with zero configuration required
  • Official EU AI-label icons unmodified for regulatory alignment
  • Automatic language detection across all 24 EU languages
  • Zero performance impact: 24 kB async load with no tracking
Community votes00
DR (Domain Rating by Ahrefs)66 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)180
Citation Flow (Majestic)3722
Referring domains (Majestic)5344

4 details filled in for both companies.

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