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Practical guides for developer tools, Google SEO, and frontend performance — engineering experience, measured results, and the pitfalls in between.

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Developer Tool Guides
Unix timestamps, regex, JWT, encodings — how the DigDevBox tools work under the hood, and when to use which.
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SEO & Search
Keyword research, link building, and ranking factors — SEO work that holds up against real data.
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Engineering Practice
DevOps and day-to-day engineering: cron, permissions, Docker Compose, and the lessons learned shipping them.
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Web & Performance
Core Web Vitals, image optimization, and code splitting — performance work tied to UX and conversion.

Featured Guides

HTTP Status Codes Guide: 2xx, 3xx, 4xx, 5xx and How to Respond

What each HTTP status class means, why 301 and 302 behave differently, and how to handle 429 rate limiting and 503 outages on both sides of the request.

Unix Timestamp Guide: UTC, Milliseconds and the 2038 Problem

What a Unix timestamp really is, why UTC and local time disagree, seconds versus milliseconds, and what the 2038 problem will do to 32-bit systems.

JSON Formatter Guide: Format, Validate and Compare JSON Online

How to format, validate, minify and compare JSON online — a practical guide to cleaning up API responses, spotting syntax errors and diffing config files.

JWT Decoder Explained: How to Inspect and Debug JSON Web Tokens

Learn how a JSON Web Token is structured and how to decode one online to inspect its header, payload and registered claims when debugging authentication issues.