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Engineering notes on SEO
Articles about technical SEO, content strategy, analytics and development from the trenches.
Meta Description: what it is and how to write it
What meta description is, how it affects CTR in search results, how to add the tag in HTML and popular CMS platforms — with templates and examples.
Robots.txt: complete setup guide for SEO
How robots.txt affects crawling, where it cannot control indexation, and how to test directives without blocking pages you need found.
Schema.org JSON-LD: structured data for Google Search
How to choose, generate and validate structured data that matches visible content and stays eligible for rich results without guaranteeing them.
XML Sitemap: build, validate and submit it
How to build a sitemap of final canonical URLs, validate its entries and use it alongside internal links and robots.txt.
Canonical URL: what it is and how to configure it
What rel canonical is, why search engines need it, and how to add the canonical tag in HTML, HTTP headers, and popular CMS platforms.
H1 tag: how to write it right — complete guide
How to use one clear H1 to identify a page’s main topic, avoid template conflicts and keep it consistent with visible content.
Title tag: complete guide
How Google creates title links, how to spot duplicates, and how to write clear page titles without promising a CTR uplift.
Core Web Vitals: Complete Guide 2026
How to interpret LCP, INP and CLS with field data, diagnose the responsible layer and improve user experience without promising rankings.
Site silo structure: intent, URLs and internal links
A practical framework for mapping search intent, URL levels and internal links so every important page has a clear role and route.