Tool Comparisons
Compare Landing Page Audit Tools to Discover the Best Solution
Every audit tool below checks something different. These pages show exactly what each one checks, what it costs, and where Nebula fits - so you can pick the right tool for your problem.
Full guide
Best Landing Page Audit Tools (2026): 8 Compared for Paid-Traffic Founders
The ranked list, pricing, and honest verdicts for Nebula, PageSpeed Insights, Hotjar, Crazy Egg, SEMrush, Screaming Frog, HubSpot Website Grader, and Unbounce.
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Pricing
Landing Page Audit Tool Pricing (2026): What 8 Tools Really Cost
Verified pricing for every tool on this list - free tiers, subscription traps, and the honest alternative.
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PageSpeed Insights
PageSpeed tells you how fast the page loads. Nebula tells you why visitors are not converting.
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HubSpot Website Grader
Website Grader gives you a broad health score after capturing your email. Nebula scores conversion signals with no signup required.
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Silktide (formerly Nibbler)
Silktide is an enterprise website quality platform. Nebula is a free, instant audit for founders whose paid ads are not converting.
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Unbounce
Unbounce builds and optimizes landing pages you host inside their platform. Nebula audits any existing landing page, on any platform, for free.
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Google Lighthouse
Lighthouse measures technical quality. Nebula measures conversion readiness.
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Hotjar
Hotjar shows you where users click after they land. Nebula shows you why the page was never going to convert in the first place.
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SEMrush Site Audit
SEMrush Site Audit finds broken links and crawl errors. Nebula checks which conversion signals your landing page is failing.
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Crazy Egg
Crazy Egg shows you user behaviour data from existing traffic. Nebula diagnoses your conversion structure before you have a single visitor.
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Screaming Frog
Screaming Frog crawls your site for technical SEO issues. Nebula audits a landing page for observable conversion conditions on the public HTML.
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Google Analytics (GA4)
GA4 measures what happened after visitors arrived. Nebula diagnoses why they did not convert before you look at a single report.
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FixRoast
FixRoast generates AI feedback and roasts based on LLM prompts. Nebula inspects the actual HTML DOM against 9 deterministic conversion signals.
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Optimizely
Optimizely runs controlled A/B experiments to measure which variant converts better. Nebula diagnoses why a page is not converting before you spend traffic on experiments.
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