Articles & Guides
Useful resources for web developers and system administrators
AI
How to Write a Good Prompt: Parts, Examples, Templates
How to write a good prompt: role, task, context, data, format and constraints, with weak vs strong examples for nginx logs, robots.txt and dig.
SEO
How to Promote My Website for Free: 6 Steps + Checklist
How to promote your website for free: fix crawling, pick keywords, match titles to intent, build trust, earn honest links, track Search Console. 7-day checklist.
AI
How to Build an AI Agent: No-Code, Python and MCP
An AI agent is a model, tools and a loop. Build one without code in n8n, in about 70 lines of Python with tool calling, or via MCP, and guard against the key risks.
AI
How Neural Networks Work, Explained Simply (No Math)
How neural networks work without math: neurons, weights, training, tokens, context windows and hallucinations, plus how ChatGPT and Gemini find your website.
Networking
How Does a Website Work? Step by Step, From URL to Page
How does a website work? Follow one request from URL to page: DNS, TCP, TLS, HTTP and rendering, the browser error each step shows, and commands to check it.
Tools
Google Sheets IMPORTXML for SEO: Formulas That Work
Google Sheets IMPORTXML for SEO: working XPath for titles, H1s, canonicals and sitemaps, common errors, plus status code and SSL expiry checks in one sheet.
Tools
Build a Website with AI: 9-Point Pre-Launch Checklist
How to build a website with AI, then check it before launch: HTTPS, security headers, image weight, soft 404s, leftover noindex, forms and leaked API keys.
AI
How to Get an AI API Key and Keep It From Leaking
Where to get an API key for OpenAI, Gemini, DeepSeek and Qwen, which have a free tier, how to store keys in environment variables, and what to do if one leaks.
SEO
How to Submit a Website to Google Search Console and Yandex
How to submit a website to Google Search Console: Domain vs URL-prefix property, DNS, tag or file verification, sitemaps, Request Indexing, Bing, Yandex, IndexNow.
Infrastructure
What Is a VPS? Virtual Servers Explained, KVM vs Containers
What a VPS is and how it works: KVM vs OpenVZ/LXC, VPS vs VDS, shared and dedicated hosting compared in a table, what a plan includes and your first setup commands.