roast.page grades landing pages from A+ to F across 8 conversion dimensions using AI vision analysis, content extraction, and Google PageSpeed data. The grade is calibrated against 1,000+ real landing pages — the median scores 44/100 (a low D), which means half of all pages have significant, fixable conversion issues. Top quartile starts at 65 (C+). Scoring 75+ puts you in the top 5%.
What does each letter grade mean for a landing page?
- A+ (95–100) — Near perfect. Exceptional across all dimensions. Under 1% of pages score here.
- A (85–94) — Excellent. Strong conversion fundamentals. Top 1% of pages.
- B (70–84) — Good. Solid foundations with clear optimization opportunities. Top 10%.
- C (55–69) — Average. Functional but leaving significant conversions on the table. Top 30%.
- D (45–54) — Below average. Multiple conversion blockers need attention. Near the median.
- F (below 45) — Critical. Fundamental issues in messaging, trust, or UX. The bottom 50%.
The distribution skews left — a thick cluster between 35 and 55, a smaller group at 55–70, and a thin tail above 70. The gap between 44 (median) and 65 (top quartile) is where most conversion gains live, and it's driven primarily by Copy & Messaging (4.8/10 median) and Trust & Social Proof (4.2/10 median).
What does the landing page grade actually measure?
The grade is a weighted composite of 8 dimensions, each measuring a specific conversion factor. First Impression & Hero (20%) and Copy & Messaging (20%) account for 40% of the total because Nielsen Norman Group research confirms users form judgments within 50 milliseconds — and pages with outcome-driven headlines score 58/100 vs 44/100 for feature-driven headlines, a 14-point gap from one element.
The grade includes real Google PageSpeed data for the Technical & SEO dimension (7% weight), so your performance score reflects actual Core Web Vitals — LCP, CLS, FCP, INP — not estimates. Pages with LCP under 2.5 seconds score 12 points higher on average. Combined with copy analysis and AI visual evaluation, the grade captures both conversion strategy and technical health in a single number.