Technical guides for every NetTools.tech tool — what it does, how it works, how to read the results and how to troubleshoot — plus articles for system administrators, DevOps engineers and security professionals.
Tool guideWeb & SEO Utilities
How robots.txt groups, Allow/Disallow rules, wildcards and status codes work, and how to fetch, validate and test a robots.txt with the NetTools.tech Robots.txt Checker or by pasting it.
Tool guideMy Info & Identity
How user-agent strings and User-Agent Client Hints work, why browsers freeze and reduce them, how to analyze a UA from your logs, and what the NetTools browser report shows about your device, display, locale and capabilities.
Category guideMy Info & Identity
An overview of the NetTools.tech identity tools: how to find your public IP address and its network, what your browser reports about itself, how to look up other addresses and MAC vendors, and which tool answers which question.