Core Web Vitals-focused performance review covering loading, rendering, image optimization, and resource hints.
This audit evaluates 26 checks across Core Web Vitals readiness, image and font loading strategies, JavaScript bundle hygiene, caching headers, and render-blocking resource patterns. Vibe-coded projects frequently ship unoptimized assets and missing performance primitives — this audit identifies the lowest-hanging fruit for measurable LCP, CLS, and INP improvements.
26
Total Checks
3
Delivery Formats
4
Categories
6
Versions
Included
Never included
Quality hardening: added counting/enumeration to all checks, numeric thresholds, quoting requirements, negative guardrails, measurement-on-pass reporting, and cross-references. Manifests tightened to exact tolerances.
2026-04-02
Added chunked format for browser-based tools
2026-03-01
Improved Step 3: paste URL is now primary submission method
2026-03-01
Hardened curl commands with -sS -L flags for redirect following and error visibility. Added response validation guidance to Step 3.
2026-02-23
Fixed invalid prompt_hash — replaced placeholder/non-hex value with actual SHA-256 digest of prompt content
2026-02-23
Initial release
2026-01-15
Picked by pack overlap with this audit.
Token management and cost-efficiency patterns to prevent unexpected API bills, covering context growth, token limits, and efficient streaming and caching implementation.
Deep performance analysis for marketing sites, covering Core Web Vitals, resource optimization, and loading strategy impact on bounce rate and conversion.
Core web performance assessment targeting load time and user experience, covering image optimization, bundle sizing, code splitting, caching, and rendering strategies.
Advanced performance analysis covering bundle composition, caching strategy, runtime bottlenecks, and third-party script impact.