Tools you can use today.
Free calculators and checkers with instant results. Run the numbers yourself or check your site, and see straight away where you stand. Filter below for what you need.
- Calculator
Conversion rate calculator
Calculate your conversion rate in one click and see straight away whether it is good for B2B.
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Customer acquisition cost calculator (CAC)
Calculate what one new customer costs you and keep your acquisition costs under control.
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Customer lifetime value calculator (LTV)
Calculate the lifetime value of a customer and your LTV:CAC ratio.
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A/B test calculator (statistical significance)
Test whether the difference between your A/B variants is statistically significant, or chance.
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ROAS calculator
Calculate your return on ad spend and the ROAS you need to turn a profit.
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Lead value calculator
Calculate what one lead is worth in euros, so you know what you can spend per lead.
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SEO ROI calculator (organic traffic value)
Give your organic traffic a euro figure and calculate the pipeline SEO delivers.
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Content marketing ROI calculator
Calculate whether your content investment pays off: revenue, profit and ROI as a percentage.
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Google Ads budget & leads calculator
Calculate how many clicks, leads and what cost per lead your Google Ads budget delivers.
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Marketing budget calculator
Calculate your marketing budget based on your revenue and see a suggested split.
Open tool - Checker
AI visibility checker
Does your robots.txt block ChatGPT, Claude, Perplexity or Gemini? Check it per AI search engine.
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GEO checker
Get a GEO score: is your page ready to be cited by AI search engines?
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SERP snippet preview
See live how your title and meta description appear in Google, with truncation warning.
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Website speed test
Measure your load time and Core Web Vitals (LCP, INP, CLS) and get concrete improvement points. Powered by Google Lighthouse.
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Google review link generator
Create a direct link and QR code to your Google review window. Optional: your rating and review count next to the local top 3.
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Cookie scanner
Which cookies and tracking tags does your site load before anyone clicks the cookie banner? Also checks your consent tool and Google Consent Mode.
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WCAG checker
Test a page for WCAG failures with axe-core: alt text, labels, links without text, blocked zoom. Every failing element numbered.
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Hreflang checker
Are your language versions set up correctly? Check hreflang, return links, x-default and machine-translation layers such as Weglot.
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Redirect checker
Paste your old URLs and see the status, redirect chains, 404s and redirects to the homepage for each one.
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Nothing in this category.