The Toolerax Blog — Page 8
Practical guides and tips to get the most out of our tools — and the concepts behind them.
7 Free SEO Tools Every Beginner Should Use
From robots.txt and sitemaps to SERP previews, schema markup and keyword density — seven free tools covering the technical SEO basics.
Read article9 Best Free Image Tools Online in 2026
Compress, resize, crop, rotate, convert and color-pick images — plus AI background removal — free in your browser, photos never uploaded.
Read article8 Best Free PDF Tools Online in 2026
Merge, split, watermark, number, reorder, rotate and convert PDFs — all free, all in your browser, with no file ever uploaded to a server.
Read articleHow Password Strength Is Measured
What entropy bits mean, why length beats symbols, how online and offline attacks differ by a factor of ten million, and why P@ssw0rd! fools no one.
Read articleWhat Is Schema Markup?
How JSON-LD structured data earns FAQ dropdowns, star ratings and product prices in search results, which schema types matter, and the rules Google enforces.
Read articleUnderstanding Cron Expressions
Read and write cron schedules with confidence: the five fields, special characters, @daily shortcuts, the day-of-week gotcha, and time-zone traps.
Read articleHow QR Codes Work
What QR codes actually store, static vs dynamic codes, error correction, why some codes won't scan, and how to make one that always works.
Read articleHow to Make CSS Gradients
Learn CSS gradient syntax the practical way: linear vs radial, angles, color stops, hard stops, and common mistakes — with copy-ready examples.
Read articleWhat Are Meta Tags (and Which Ones Matter)
A plain guide to the meta tags that matter: title, description, canonical, Open Graph and Twitter Cards — what each does and how to write them well.
Read articleHow to Choose a Color Palette
Complementary, analogous and triadic schemes explained, plus the 60-30-10 rule, tints and shades, and how to keep your palette accessible.
Read articleWhat Is the Average Reading Speed?
The average reading speed in words per minute, how it varies by age and material, why speed reading claims are misleading, and how to time a speech.
Read articleWhat Is Keyword Density?
What keyword density means, how to calculate it, why there is no magic percentage, what keyword stuffing looks like, and what to focus on instead.
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