Body text size
type:Smallest sampled text is 10px, below the 13px floor this check uses.
FixKeep body copy ≥15-16px; reserve sub-13px for fine print only.
01
Homepage / Lander
▼ thinnest
3 tactics
saas · Sep 17, 2026
langchain.com
We found more conversion tactics here than on 67% of the 1,350 multi-step SaaS funnels we have measured.
6 conversion tactics detected
2 pages walked · measured by Roentgen 1.27.0
How this was measured
Measured by Roentgen 1.27.0 on 2026-09-17. A capture is read once and its measurements freeze there, so the stamp says which ruleset read this one.
This 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. A low count means we did not detect those patterns, not that the funnel is weak.
Against all 1,781 multi-step funnels, more conversion tactics than 72% of them.
The short version, in 5 parts
-
Proven on the page
6 conversion tactics detected, each backed by text on the page
- Answers buyer objections
General Questions
- Offers a free trial or free tier
$0 / seat
- Shows customer logos or a trusted-by claim
used by
+ 3 more with evidence
-
Not seen
5 of 11 applicable tactics we checked for and did not see
- Press / "as seen in"
- Media logos or an "as seen in / featured in" claim borrowing publication credib…
- Us-vs-them comparison
- A comparison table framing the brand against alternatives.
- Proof above the fold
- Social proof rendered within the first viewport on at least one step.
+ 2 more
-
Flagged
4 of 18 build checks flagged, each with a fix
- Body text size
- Smallest sampled text is 10px, below the 13px floor this check uses.
- Form labels
- 1 of 4 form fields have no label (+2 rely on placeholder only).
- Named controls
- 19 buttons/links have no accessible name (icon-only, no aria-label).
+ 1 more
-
Walked
2 pages walked, Homepage / Lander to Pricing
- Step 1
- Homepage / Lander
- Step 2
- Pricing
-
In their words
The headline:
Meet LangSmith Engine
- Promise
LangChain enables every company to own their intelligence. Control, govern, and compound intelligence with an…
What we recorded
The funnel, frame by frame
2 steps walkedIn their own words
24 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
LangChain: the open agent platform to own your intelligence
- Meta description
LangChain enables every company to own their intelligence. Control, govern, and compound intelligence with an open agent engineering platform.
- Headline
Meet LangSmith Engine
- Section headings
Accelerating the Agent Development Lifecycle
Build
Test
Deploy
Monitor
Iterate
Govern
Learn from teams running agents in production
+1 more, not shown- Buttons and links
Try LangSmith Get a demo
Try LangSmith
Get a demo
Start building Get a demo
Start building
Deep Agents
LangGraph
LangChain
Fleet
Observability
+2 more, not shown
What we found
6 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 opinionobjection1 of 2
Answers buyer objections
General Questions
proof1 of 4
Shows customer logos or a trusted-by claim
used by
offer2 of 2
Offers a free trial or free tier
$0 / seat
Makes the pricing ladder explicit
$0/seat, free, $39/seat, $39/mo
checkout2 of 2
Offers a demo or docs entry point
Get a demo
Lead-capture form
EMAIL, submit
What we didn’t find
5 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 see5 of 11 applicable
Press / "as seen in"
642 of the 2,417 funnels we checked
Us-vs-them comparison
441 of the 2,420 funnels we checked
Proof above the fold
381 of the 2,420 funnels we checked
Usage / adoption proof
289 of the 2,043 funnels we checked
Scarcity / urgency copy
125 of the 2,417 funnels we checked
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
18 run · 4 flaggedcontrast, mobile, typography, accessibility, weight — each with what would fix it
measuredextracted directly from the live page. a fact, not an opinion4 of 17 measured checks need work1 could not be measured — not counted either way
Form labels
a11y:1 of 4 form fields have no label (+2 rely on placeholder only).
FixGive every input a <label> or aria-label; placeholders are not labels.
Named controls
a11y:19 buttons/links have no accessible name (icon-only, no aria-label).
FixAdd aria-label to icon-only buttons and links.
Oversized images
weight:6 images are shipped at more than 2x the width shown.
“6a759cbd01423e8a4b3ff5f0_Build.webp” is 1440px wide, displayed at 498px
FixServe responsive sizes (srcset/sizes) matching the rendered width.
Worth knowing8
Line length
1 paragraph runs past ~95 characters per line.
FixCap measure at ~60-75ch for comfortable reading.
type:Link text
6 links use generic text (“click here” / “learn more”).
FixMake link text describe its destination out of context.
a11y:Heading levels
3 headings skip a level (e.g. <h2> followed by <h4>). Screen-reader users navigate by this outline.
FixStep heading levels one at a time; use CSS for size, not a deeper level.
a11y:Skip link
No same-page “skip to content” link was found. Keyboard users tab through the whole nav on every page.
FixAdd a first-in-DOM <a href="#main"> that is visible on focus.
a11y:Label in name
5 controls have an aria-label that does not contain its visible text, so voice-control users cannot activate it by saying what they see.
FixMake the accessible name start with the visible label text.
a11y:Render-blocking resources
6 stylesheets/scripts in <head> block first paint.
FixDefer non-critical JS (defer/async) and inline only critical CSS.
weight:Keyboard reachability
66 elements look clickable but cannot be reached by keyboard.
FixUse <button>/<a>, or add role + tabindex="0" and a key handler.
structure:Autocomplete hints
No autocomplete attributes across 4 fields. browsers cannot autofill.
FixAdd autocomplete="email"/"tel"/"name" to identity fields.
forms:Not measurable1
Page weight
At least 0.4 MB across 10 measurable resources, but 212 cross-origin resources did not expose a size. The true weight cannot be determined from the page.
weight:Clear5
Text contrast (WCAG AA) · Mobile viewport · Language declared · Image alt text · Inline validation
This funnel: 100% of text passes AA · top corpus funnels average 93%.
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 %
accent#f2faff
bg#f2faff
surface#ffffff
text#030710
See the roles applied
accent
Body copy in their text role, on a surface card.
the roles, doing their job
The quick brown fox80px
Jumps over the lazy dog64px
A subheading in their voice56px
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
11pxAa
13pxAa
14pxAa
16pxAa
18pxAa
22pxAa
24pxAa
32pxAa
48pxAa
56pxAa
64pxAa
80pxAa
WEIGHTS
Aa300
Aa400
FAMILIES
Twklausanne
rendered in their own type system · webfont not loaded. system fallback if uninstalled
Measured, found none
2 of 8 layerslayers we ran on this funnel that came back empty
measuredextracted directly from the live page. a fact, not an opinionElements — the atomic pieces — price anchors, ratings, guarantees — with their verbatim on-page text
Playbook match — which funnel play this page runs — measured, evidence-quoted
We ran these passes on the pages we captured and found nothing to show. That is a measurement of this funnel, not a recommendation — and it is a different statement from a layer we never ran, which does not appear here at all.
