Articles & Guides
Useful resources for web developers and system administrators
Found 26 · SEO · Reset
SEO
What Is Website Indexing: How It Works and How to Check
What website indexing is in plain terms: how crawling differs from indexing, how a page gets into the index, how to check it and what blocks it.
SEO
Title and Meta Description Tags: How to Write and Check Them
How to write title and meta description tags: length in pixels, formulas and templates by page type, how to inspect yours and a competitor's, common mistakes.
SEO
How to Build a Semantic Core: From Keyword List to Site Structure
How to build a semantic core: seed sources, keyword operators, frequency types, cleanup, intent checks, clustering and mapping clusters to landing pages.
SEO
Schema.org Structured Data: How to Check and Implement It — JSON-LD, Types, Validators
What Schema.org structured data is and how to implement it: JSON-LD vs microdata vs RDFa, core types, ready-to-use code examples. How to check structured data online with Google, Yandex and schema.org validators, common errors and an implementation checklist.
SEO
Open Graph Tags: How to Control Link Previews in Telegram, X and Social Networks
Open Graph setup guide: the five core og tags, og:image size 1200×630, Twitter Card summary_large_image, fixing empty or stale link previews, forcing a cache refresh in Telegram and X, and validating the card with a preview tool.
SEO
Why Your Website Doesn't Show Up in Search: Indexing Checklist
Site missing from Google? Learn how to check indexing with the site: operator and Search Console, find blockers — robots.txt Disallow, noindex, server errors, downtime — and get your pages back into search results, step by step.
SEO
Site Monitoring for Yandex Webmaster: 5xx and Indexing
How availability and 5xx monitoring supports indexing in Yandex Webmaster: why downtime hurts SEO, checking from Russia, alerts and fast response to errors.
SEO
Agent Cards and .well-known for AI Agents
How to describe your site for AI agents: agent-card.json, ai-plugin.json, mcp/server-card.json in .well-known plus llms.txt. Examples and a readiness checklist.
SEO
Schema.org for AI Search: Types, @id and Common Errors
Which Schema.org types affect extractability in AI answers, why every node needs an @id, how to link an entity graph, common markup errors and check commands.
SEO
Website AI-Readiness Checklist: 12 Checks With Commands
Website AI-readiness checklist: 12 checks with real curl commands — crawler access, text in raw HTML, JSON-LD, llms.txt, TTFB, and the myths to skip.