LTV Calculator — How to Calculate Customer Lifetime Value
Learn how to calculate LTV (Customer Lifetime Value), the LTV/CAC ratio, and how to use these metrics to evaluate acquisition strategy and growth sustainability.
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Dovecot
Documents and tutorials about Dovecot
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Car Insurance Calculator — 8 Factors That Affect Your Premium
Learn what drives car insurance premiums, the main coverage types and what they protect, and how to estimate your auto insurance cost with a free online calculator.
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Color Converter Online — HEX to RGB, RGB to HSL & More
Learn the difference between HEX, RGB, and HSL color formats, when to use each, and how to convert between them instantly online for free. Essential for web designers and developers.
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EXIF Viewer — Read Hidden Photo Metadata, GPS Location and Camera Settings
Learn what EXIF data is, what information is hidden in your photos (including GPS location), and how to view image metadata online for free. Includes important privacy warnings.
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SaaS Churn Calculator — MRR Churn, Customer Churn & NRR
Learn how to calculate SaaS churn rate, MRR churn, and net revenue retention (NRR). Free online calculator with industry benchmarks and strategies to reduce churn.
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Profit Margin Calculator — Gross Margin, Net Margin & Markup
Learn the difference between gross margin, net margin, and markup. Calculate profit margins for any product or business with the free online profit margin calculator.
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DNS Leak Test — Check If Your VPN Is Actually Protecting Your Privacy
Learn what DNS leaks are, why they happen even with a VPN active, and how to test for and fix DNS leaks using a free online tool. Covers WebRTC leaks too.
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JWT Debugger — Decode and Verify JSON Web Tokens Online
Learn JWT structure, how signing works, common security vulnerabilities, and how to decode and verify JWT tokens for free online. Essential tool for developers.
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Break-Even Calculator — Find Your Business Break-Even Point
Learn the break-even formula, the difference between fixed and variable costs, and how to use break-even analysis for pricing, expansion, and investment decisions.
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Net Worth Calculator — Calculate and Grow Your Personal Net Worth
Learn how to calculate net worth, what counts as assets and liabilities, and how to track your financial health over time. Free online net worth calculator included.
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