Smallest body text is 12px (base ~14px). below the ~16px readable floor.
fix Keep body copy ≥15-16px; reserve sub-13px for fine print only.
01
Homepage / Lander
▼ thinnest
1 tactic
$21 +1 more
saas · Aug 15, 2026
e2b.dev
55/100 Thin
Scores above 62% of 1,252 multi-step funnels we have measured. Among the 959 saas funnels in that group, above 54%.
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 1.25.1, 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 167 links seen, 118 walkable, 2 matched, and we walked 3 pages.
What we recorded
Progress
2 scans
this funnel’s coverage score across measured re-scans
measuredextracted directly from the live page. a fact, not an opinion
0pts
since the first measured scan (2026-08-09) — 2 re-scans
- 55 Thin 2026-08-09
- 55 Thin 2026-08-15
The funnel, frame by frame
3 steps walkedIn their own words
33 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
E2B | The Enterprise AI Agent Cloud
- Meta description
E2B Gives AI Agents Secure Computers with Real-World Tools. E2B is Used by 94% of Fortune 100 Companies for Frontier Agentic Workflows.
- Headline
AI SANDBOXES FOR
- Section headings
BUILT FOR AI AGENTS, LLM TRAINING, AND MCPS
IN YOUR CODE WITH A FEW LINES
FEATURES YOUR AGENTS WILL LOVE
GET INSPIRED BY OUR COOKBOOK
Code Interpreter with IBM WatsonX AI in JS/TS
Code Interpreter with IBM WatsonX AI in Python
Llama 3 with code interpreting and analyzing uploaded dataset
AI Code Execution with Together AI models, JS/TS
+8 more, not shown- Buttons and links
SIGN UP SIGN IN
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SEE CUSTOMER CASE STUDIES
All
JS
+2 more, not shown- Prices on the page
$21
$250
Sections
5 identified
structural bands identified on this funnel, cropped from its own capture
measuredextracted directly from the live page. a fact, not an opinion
What we found
5 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 opinionOffer clarity1 of 1
Makes the pricing ladder explicit
free, $150/mo
Action path2 of 4
Lead-capture form
traits.email, traits.name, password
Offers a demo or docs entry point
docs link
Trust & proof2 of 2
Shows customer logos or a trusted-by claim
used by
Puts a number on adoption
100 Companies
Value reinforcement1 of 2
Puts a number on adoption
100 Companies
What we didn’t find
6 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 see6 of 11 applicable
FAQ / objection handling
1175 of 1777 measured funnels run this
Free trial / freemium
974 of 1248 measured funnels run this
Press / "as seen in"
448 of 1769 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
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 · 4 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
94% of measurable text passes WCAG AA. 4+ runs fail.
worst: “✶✶✶✶✶✶✶✶ ✶✶✶✶✶✶✶✶” at 2.29:1 (12px, #ff8800 on #fafafa). 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.
Typography1 flagged
Body text size needs worktype:body-text-size
Accessibility hygiene1 flagged
Language declared passesa11y:language-declared
html[lang] is set for screen readers.
Form labels notea11y:form-labels
1 form field relies on placeholder text as the only label.
fix Back placeholders with a real <label>. placeholder text vanishes on input.
Named controls needs worka11y:named-controls
16 buttons/links have no accessible name (icon-only, no aria-label).
fix Add aria-label to icon-only buttons and links.
Link text notea11y:link-text
1 link uses generic text (“click here” / “learn more”).
fix Make link text describe its destination out of context.
Skip link notea11y:skip-link
No same-page “skip to content” link was found. Keyboard users tab through the whole nav on every page.
fix Add a first-in-DOM <a href="#main"> that is visible on focus.
Label in name notea11y:label-in-name
8 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 & deliveryclear
Page weight not measurableweight:page-weight
At least 2.2 MB across 90 measurable resources, but 77 cross-origin resources did not expose a size. The true weight cannot be determined from the page.
Render-blocking resources passesweight:render-blocking-resources
3 stylesheets/scripts in <head> block first paint.
fix Defer non-critical JS (defer/async) and inline only critical CSS.
Structure & reachability1 flagged
Landmark regions needs workstructure:landmark-regions
No <main> or <footer> or <header> landmark. screen-reader users cannot jump between regions.
fix Wrap the page in <header>, <main> and <footer> (or matching ARIA roles).
Keyboard reachability notestructure:keyboard-reachability
15 elements look clickable but cannot be reached by keyboard.
“RESOURCES”, “All”, “JS”
fix Use <button>/<a>, or add role + tabindex="0" and a key handler.
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#fafafa
accent#fafafa
bg#fafafa
surface#ebebeb
text#000000
See the roles applied
accent
Body copy in their text role, on a surface card.
the roles, doing their job
The quick brown fox64px
Jumps over the lazy dog60px
A subheading in their voice40px
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
12pxAa
14pxAa
16pxAa
24pxAa
40pxAa
60pxAa
64pxAa
WEIGHTS
Aa400
Aa500
Aa700
FAMILIES
Ibm Plex Mono 700
rendered in their own type system · webfont not loaded. system fallback if uninstalled
We also looked for Elements and Playbook match, and found none on this funnel.
X-ray a funnel
