Smallest body text is 12px (base ~12px). below the ~16px readable floor.
fix Keep body copy ≥15-16px; reserve sub-13px for fine print only.
01
Intro
▲ strongest
4 tactics
10% off · 1 proof point
saas · Aug 9, 2026
mermaid.js.org
35/100 Sparse
Scores above 25% of 1,252 multi-step funnels we have measured. Among the 959 saas funnels in that group, above 14%.
How this was measured
Coverage is detection coverage, not a verdict — it counts the conversion tactics we could prove are present, out of the 11 that apply to a saas funnel.
Measured by Roentgen 1.20.1, one of our versioned rulesets. A capture is read once and its measurements freeze there, so the stamp says which ruleset read this one.
Walk 84 links seen, 73 walkable, 2 matched, and we walked 3 pages.
What we recorded
The funnel, frame by frame
3 steps walkedIn their own words
26 quotedthe entry page’s own title, headline, buttons and prices — quoted, never paraphrased
measuredextracted directly from the live page. a fact, not an opinion- Page title
About Mermaid | Mermaid
- Meta description
Create diagrams and visualizations using text and code.
- Headline
About Mermaid
- Section headings
What are you looking for?
📔 Introduction
📊 Diagram Syntax
📚 Ecosystem
⚙️ Deployment and Configuration
🙌 Contributing
📰 Latest News
Diagram Types
+8 more, not shown- Buttons and links
Just exploring, skip for now
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11.16.1
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What we found
3 tacticsconversion tactics we could prove are present, with the on-page text that evidences each
measuredextracted directly from the live page. a fact, not an opinionAction path2 of 4
Offers a free trial or free tier
Start free
Offers a demo or docs entry point
documentation
Trust & proof1 of 2
Shows customer logos or a trusted-by claim
logos: Mermaid, Build CI Status, NPM, Coverage Status, CDN Status
Friction reduction1 of 2
Offers a free trial or free tier
Start free
What we didn’t find
8 of 11 applicableapplicable tactics we checked for and did not see on any step we reached
measuredextracted directly from the live page. a fact, not an opinionWhat we didn’t see8 of 11 applicable
FAQ / objection handling
1175 of 1777 measured funnels run this
Pricing tiers
636 of 1248 measured funnels run this
Press / "as seen in"
448 of 1769 measured funnels run this
Lead-capture form
310 of 1256 measured funnels run this
Us-vs-them comparison
304 of 1777 measured funnels run this
Proof above the fold
292 of 1777 measured funnels run this
Usage / adoption proof
224 of 1369 measured funnels run this
Scarcity / urgency copy
94 of 1769 measured funnels run this
Absence is a measurement, not a recommendation: we do not know why a tactic is missing, whether it belongs here, or whether adding it would change anything. Where a walk stopped early, a tactic living deeper would also read as not detected.
How well it’s built
13 run · 5 flaggedcontrast, mobile, typography, accessibility, weight — each with what would fix it
measuredextracted directly from the live page. a fact, not an opinionReadability & contrast1 flagged
Text contrast (WCAG AA) needs workcontrast:text-contrast-wcag-aa
92% of measurable text passes WCAG AA. 4+ runs fail.
worst: “Start” at 1.61:1 (16px, #cccccc on #ffffff). needs 4.5:1
fix Raise text/background contrast to ≥4.5:1 (≥3:1 for large text), especially on CTAs and body copy.
Mobile & tap targetsclear
Mobile viewport passesmobile:mobile-viewport
Responsive viewport meta is present.
Typography2 flagged
Body text size needs worktype:body-text-size
Line height needs worktype:line-height
Body line-height is 1.2×. tight enough to hurt readability.
fix Set body line-height to ~1.4-1.6×.
Line length notetype:line-length
6 paragraphs run past ~95 characters per line.
fix Cap measure at ~60-75ch for comfortable reading.
Accessibility hygiene1 flagged
Language declared passesa11y:language-declared
html[lang] is set for screen readers.
Image alt text passesa11y:image-alt-text
All 8 content images carry alt text.
Named controls needs worka11y:named-controls
4 buttons/links have no accessible name (icon-only, no aria-label).
fix Add aria-label to icon-only buttons and links.
Heading levels notea11y:heading-levels
12 headings skip a level (e.g. <h2> followed by <h4>). Screen-reader users navigate by this outline.
fix Step heading levels one at a time; use CSS for size, not a deeper level.
Label in name notea11y:label-in-name
3 controls have an aria-label that does not contain its visible text, so voice-control users cannot activate it by saying what they see.
fix Make the accessible name start with the visible label text.
Weight & delivery1 flagged
Page weight not measurableweight:page-weight
At least 2.6 MB across 77 measurable resources, but 115 cross-origin resources did not expose a size. The true weight cannot be determined from the page.
Render-blocking resources passesweight:render-blocking-resources
1 stylesheet/script in <head> block first paint.
fix Defer non-critical JS (defer/async) and inline only critical CSS.
Oversized images needs workweight:oversized-images
7 images are shipped at more than 2x the width shown.
“book-banner-post-release.DBlRGW2R.jpg” is 2560px wide, displayed at 688px
fix Serve responsive sizes (srcset/sizes) matching the rendered width.
Brand kit
5 colour roles
palette by on-page usage · type rendered live
measuredextracted directly from the live page. a fact, not an opinionfull palette ordered by on-page usage %
primary#070916
accent#070916
bg#f6f6f7
surface#ffffff
text#3c3c43
See the roles applied
accent
Body copy in their text role, on a surface card.
the roles, doing their job
The quick brown fox34px
Jumps over the lazy dog32px
A subheading in their voice24px
Body copy set at their measured paragraph size. This is how their product reads to a first-time visitor. same family, same scale, same weight.
- List item one, at body scale
- List item two
- List item three
Type scale, weights & families
SIZE SCALE
10pxAa
11pxAa
12pxAa
13pxAa
14pxAa
16pxAa
18pxAa
20pxAa
24pxAa
32pxAa
34pxAa
WEIGHTS
Aa300
Aa400
Aa500
Aa600
Aa700
FAMILIES
Inter
rendered in their own type system · webfont not loaded. system fallback if uninstalled
We also looked for Sections, Elements and Playbook match, and found none on this funnel.
X-ray a funnel
