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Performance vs Uniqueness
Lighthouse tells you how fast and accessible your site is. Sailop tells you how unique it looks. A site can score 100 on Lighthouse and still look like every other AI-generated project.
| Dimension | Lighthouse | Sailop |
|---|---|---|
| Purpose | Performance, accessibility, SEO, best practices | Visual uniqueness and AI pattern detection |
| Scoring | 0-100 per category (4 categories) | Grade A-F + numeric score (7 dimensions) |
| What it measures | Load time, render speed, DOM size, ARIA | Color DNA, typography, layout, radius, animation |
| Needs a browser? | Yes -- runs in headless Chrome | No -- static analysis of source code |
| Speed | Slow (10-30s, full page render) | Fast (under 1s, pattern matching) |
| Performance | First Contentful Paint, LCP, CLS, TBT | Not measured -- not its job |
| Accessibility | WCAG compliance, contrast, ARIA roles | Not measured -- not its job |
| SEO | Meta tags, crawlability, mobile viewport | Not measured -- not its job |
| Design uniqueness | Not measured -- not its job | Full analysis across 7 visual dimensions |
| AI detection | None | 73+ rules for AI-generated visual patterns |
| Fix capability | Suggestions only | Auto-generates unique design system |
| CI integration | Lighthouse CI (LHCI) | sailop check --threshold B |
Lighthouse is Google's tool for auditing web page quality. It scores four dimensions: Performance (how fast it loads), Accessibility (can everyone use it), Best Practices (modern standards), and SEO (can search engines find it). These are all important -- and none of them tell you anything about visual identity.
A perfect Lighthouse score. The site loads fast, it is accessible, SEO is good. But what does it look like? Lighthouse has no opinion.
Sailop fills the gap Lighthouse ignores: visual identity. It scans your CSS, Tailwind classes, and design tokens for patterns that AI tools generate by default.
Same site, two tools, two completely different stories. Lighthouse says "fast and accessible." Sailop says "looks like AI made it."
A fast site that looks generic does not convert. A unique site that loads slowly does not retain. You need both. Run Lighthouse CI for performance gates and Sailop for design quality gates:
Lighthouse and Sailop measure orthogonal dimensions. Lighthouse answers "is this site technically good?" Sailop answers "is this site visually distinctive?" A Lighthouse 100 with a Sailop Grade F means your site is fast, accessible, and looks exactly like every other AI-generated project.