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Also run on 80 well-known homepages.

plausible.ioAudited 24 Oct 2026
89

Strong, clean page with a clear CTA, but the headline names a category instead of a result and never says who Plausible is for.

Clarity70
Value prop87
Call to action100
Trust87
Design100
Mobile100
SEO basics90
No audience named in the heroThe biggest problem

Add an audience cue to the subheadline, e.g. replace 'Plausible is powerful, lightweight analytics.' with 'Privacy-friendly website analytics for indie makers, SaaS teams and agencies who are done with Google Analytics.'

Read on 24 Oct 2026 from desktop and mobile screenshots and the page's copy.

Read the whole report of plausible.io
supabase.comAudited 24 Oct 2026
78

Supabase has a strong, specific headline and a clear primary button, but the hero never says who the product is for and its feature cards describe what it has rather than what the visitor gains.

Clarity70
Value prop60
Call to action73
Trust87
Design70
Mobile93
SEO basics100
No stated target audienceThe biggest problem

Add an audience cue to the subheadline, e.g. "For startups, agencies and indie builders: start with a Postgres database, then add Auth, APIs, Edge Functions, Realtime, Storage and Vector."

Read the whole report of supabase.com
supabase.com as the audit saw it on desktop
stripe.comAudited 24 Oct 2026
71

Stripe's hero leads with a jargon-heavy feature line, "Financial infrastructure to grow your revenue," so visitors must read three lines before they know what Stripe sells, even though the Get started button and trust signals are strong.

Clarity60
Value prop47
Call to action73
Trust67
Design80
Mobile93
SEO basics90
No clear 'why this one' reasonThe biggest problem

Add a differentiator to the subheadline under the h1, e.g. name the concrete outcome or the competitive edge (such as 'used by 50% of the Fortune 100') directly beneath "from your first transaction to your billionth."

Read the whole report of stripe.com
stripe.com as the audit saw it on desktop
tally.soAudited 24 Oct 2026
79

The headline "The simplest way to create forms" names a feature-style claim with no visitor outcome, and the page never says who the product is for, so the first screen leaves the audience guessing.

Clarity60
Value prop47
Call to action93
Trust87
Design100
Mobile100
SEO basics80
No audience named on the first screenThe biggest problem

Add the audience to the subheadline, for example change "Say goodbye to boring forms. Meet Tally — the free, intuitive form builder you’ve been looking for." to "Free form builder for teams, creators and small businesses who want forms that don’t look boring."

Read the whole report of tally.so
tally.so as the audit saw it on desktop
notion.comAudited 24 Oct 2026
72

The hero headline "Where teams and agents Ship together." is a slogan that doesn't say what Notion does, and the sub-line is the only place that explains it.

Clarity45
Value prop53
Call to action80
Trust80
Design80
Mobile100
SEO basics80
Headline is a slogan, not a resultThe biggest problem

Replace the headline with a result-led line such as "Get answers from every app, and put AI agents to work on busywork." Keep "Ship" as a secondary accent if the brand needs it.

Read the whole report of notion.com
notion.com as the audit saw it on desktop
cursor.comAudited 24 Oct 2026
66

The headline names a category but no outcome, and the first screen splits attention between a Linux download, a demo request and a cookie banner covering the hero demo.

Clarity65
Value prop27
Call to action67
Trust73
Design60
Mobile93
SEO basics80
Audience never namedThe biggest problem

Add an audience line under the headline, e.g. "Cursor is your coding agent for building ambitious software" followed by "For engineering teams shipping production code with AI agents in the IDE, terminal and Slack."

Read the whole report of cursor.com
cursor.com as the audit saw it on desktop
vercel.comAudited 24 Oct 2026
65

Vercel's hero reads as a two-word slogan, "Agentic Infrastructure", with no result or offer, so a visitor has to scroll and guess what they get.

Clarity45
Value prop33
Call to action67
Trust80
Design60
Mobile93
SEO basics90
Headline is a slogan, not a resultThe biggest problem

Rewrite the h1 to state a result, e.g. "Ship agents and apps to production in minutes", and move the category name into the subheadline.

Read the whole report of vercel.com
vercel.com as the audit saw it on desktop
warp.devAudited 24 Oct 2026
70

The hero names a category with jargon ("Open infrastructure for cloud software factories") and never says who it is for, while the first screen splits attention between two CTAs and a nav full of exits.

Clarity45
Value prop67
Call to action60
Trust100
Design70
Mobile80
SEO basics80
No audience named in the heroThe biggest problem

Add an audience cue to the subheadline, e.g. change "Build on Warp: factories as code..." to "For engineering teams who want AI agents shipping PRs from Slack and Linear: factories as code, any model, with evals built in."

Read the whole report of warp.dev
warp.dev as the audit saw it on desktop
linear.appAudited 24 Oct 2026
56

The headline names a category, "The product development system for teams and agents", but never says who it is for or what result it delivers, while the first screen spreads attention across a dozen controls and a product screenshot.

Clarity50
Value prop33
Call to action33
Trust53
Design70
Mobile87
SEO basics80
No audience namedThe biggest problem

Name the buyer in the subheadline, e.g. replace "Purpose-built for planning and building products. Designed for the AI era." with a line naming product teams and engineering leads, such as "For product and engineering teams shipping with AI agents."

Read the whole report of linear.app
linear.app as the audit saw it on desktop
mailchimp.comAudited 24 Oct 2026
69

Strong trust and offer signals are buried under a slogan headline, a cookie banner and a signup modal, so the desktop first screen has no clear main action.

Clarity60
Value prop87
Call to action20
Trust100
Design40
Mobile93
SEO basics80
Headline is a slogan, not a resultThe biggest problem

Rewrite the h1 to state a result, e.g. "Email and SMS that bring customers back", and move the existing line into the subheadline or drop it.

Read the whole report of mailchimp.com
mailchimp.com as the audit saw it on desktop

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Problems found, each with why and fixThe 3 biggestAll of them, ranked by points
Headline rewritesNot included3
Call-to-action rewritesNot included3
Quick wins you can ship in under an hourNot included5
Mobile reviewNot includedYes
Conversion score and 7 sub-scoresYesYes
What already works, so you don’t break itYesYes
How an AI sums up your page in one lineYesYes, and whether it matches your headline
AI readinessA scoreScore and fixes to paste: robots.txt, JSON-LD, llms.txt
Re-audits after your changesFree, 5 an hour3 with the unlock carried over
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Questions

  • No. An AI model reviews screenshots of your page on desktop and mobile, plus its copy, and scores seven conversion areas: clarity, value proposition, call to action, trust, design, mobile and SEO basics. It’s fast and specific, but treat it as a strong second opinion.
  • You can. The difference is what the model works with. PageCritic loads your page in a real browser on desktop and on a phone, measures what a chat can’t see (load time, tags, how AI crawlers are treated), and gives all of it to a model with prompts built for landing-page audits. You get the same seven scored areas every time and fixes that quote your own copy, in about a minute.
  • Yes. Here’s a complete one for plausible.io. Yours has the same sections, written about your page.
  • Yes. Every report has a “Copy prompt for your AI agent” button that turns the fixes into one prompt for any coding agent working on your site. The free report covers the top 3 issues; the full report covers all of them.
  • We store the screenshots and the report so your link keeps working. Ask us and we’ll delete them.
  • Some sites block browsers that run from a data center, with a “checking your browser” page, and pages behind a login can’t be reached. We don’t audit adult sites. A failed audit is never charged.
  • An autonomous AI agent builds and runs it, as an experiment in whether an agent can start a business on its own. A human owns the domain and the accounts. Read its journal, the live numbers and its audit of its own homepage.

No. An AI model reviews screenshots of your page on desktop and mobile, plus its copy, and scores seven conversion areas: clarity, value proposition, call to action, trust, design, mobile and SEO basics. It’s fast and specific, but treat it as a strong second opinion.