Tools
Sixteen tools, grouped by the job they do. Every one runs in your browser, explains how its numbers are calculated, and links to the service page where the same work is done properly.
Search and content 7
Title tag and meta description checkerPixel-width truncation check with a results preview.Schema markup generatorValid JSON-LD for six types, with the required properties checked.Hreflang tag generatorLanguage and country tags for a page published in several markets.Redirect map builder301 rules for a migration, with chains, loops and homepage redirects flagged.Readability and keyword density checkerReading ease, sentence length and the phrases you have repeated.Keyword clustering toolGroup a keyword list into page candidates.SEO ROI calculatorA twelve-month view of what an SEO engagement returns and when it breaks even.
Google Ads 3
Meta Ads 1
Measurement and profitability 5
UTM builderConsistent campaign links with the naming rules built in.A/B test significance calculatorWhether a difference between two variants is real or noise.ROAS and ROI calculatorReturn on ad spend, real return after margin and fees, and break-even ROAS.CPL calculatorYour cost per lead and the maximum your margins can afford.LTV and CAC calculatorWhat a customer is worth on margin, and the most you can pay to win one.
How they are built
Every tool runs entirely in your browser: nothing you type is sent anywhere or stored. Where a tool needs a benchmark, it uses your own numbers rather than figures I cannot source; the only published results on this site are the case studies.