Is Croast really free?

Yes. No signup, no credit card. Each audit takes ~6 seconds and uses both a hand-tuned rule engine and an optional AI layer.

Headline strength, CTA copy and count, social proof, risk-reversal, specificity, word count, meta description, FAQ presence, pricing visibility, trust signals, and objection coverage.

No server-side storage. Shareable roast links are encoded directly into the URL — the recipient can decode them client-side.

How accurate is the score?

The score is rule-derived, not predictive. It's a directional audit, not an A/B test. Use it to find issues, then run your own experiments.

§ Comparison · Performance vs Conversion

Croast vs. PageSpeed Insights

PageSpeed Insights tells you whether your page loads fast. It does not — and was never designed to — tell you whether the page actually converts visitors into customers. Croast is the missing second half.

Bottom line

PageSpeed makes your page fast. Croast makes your page sell. They fix different problems. Run both, in that order.

Side-by-side

Capability	PageSpeed Insights	Croast
What it measures	Render speed, layout shift, LCP, CLS, TBT — Lighthouse metrics.	Headline strength, CTA clarity, social proof, trust signals, objection coverage.
Tells you why nobody is buying	No. Performance is rarely the reason.	Yes. Each finding cites the specific copy issue and how to fix it.
Time to signal	5–10 seconds.	~6 seconds.
Output	A number from 0–100, plus a performance waterfall.	A number from 0–100, plus ranked issues, rewritten hero, action plan.
Audit depth	Engineer-friendly: identifies slow JS, render-blocking CSS, oversized images.	Marketer-friendly: identifies weak headline, generic CTA, missing trust.
Fix guidance	"Defer unused JavaScript. Compress images."	"Your headline is too long. Try this rewrite instead."
Cost	Free.	Free.
Best for	Engineers tuning a slow web app or e-commerce store.	Founders tuning a new landing page before sending paid traffic.

When to use which

Reach for PageSpeed Insights when…

Your conversion rate is fine but mobile load time is hurting rankings, or you've shipped a bug that's tanking your LCP / CLS.

Reach for Croast when…

You just shipped a landing page and want the same five insights a senior CRO would flag, in plain English, before you spend a dollar on traffic.

FAQ

Should I fix Core Web Vitals or copy first?

Copy first. The fastest page in the world still won't convert if the hero says 'Welcome to our revolutionary next-generation platform'. After copy is tight, then fix performance so the search engines don't punish you.

Can I use both?

Yes, and you should. PageSpeed catches what your user feels; Croast catches what they decide. They're orthogonal problems.

Is Croast a Lighthouse replacement?

No. Lighthouse is a developer tool. Croast is a marketing tool. Different stacks, different outputs, different jobs.

The verdict

Get your own verdict in 60 seconds.

Free. No signup. The same five insights a senior PageSpeed Insights analyst would catch.

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