Blog
Tutorials, cheatsheets and best practices around the tools on NetLabTools.
Regex Cheatsheet – essential patterns with examples
All key regex patterns at a glance: character classes, quantifiers, anchors, lookarounds and ready-to-use patterns for email, URL and more.
8 min readHTTP status codes explained: when to use 401 vs 403 vs 422
The most important HTTP status codes explained clearly — including rules of thumb for 401, 403 and 422.
7 min readCron syntax explained: examples for every use case
Cron expressions step by step — with 10 real-world examples from every-minute to the last Friday of the month.
6 min readJWT explained: structure, security and best practices
What is a JWT, which algorithms exist and how to use them safely? Including the most common pitfalls.
9 min readUUID v4 vs v7: which version should you use?
UUID v4 or v7? Differences, pros and cons and which version is the better fit as a database primary key today.
6 min read