Check how a page looks to search engines and AI crawlers.

The four tools

• Meta Tag & Open Graph Analyzer

  Checks title, description, canonical, robots, hreflang and social cards.

• Structured Data Validator

  Extracts JSON-LD, microdata and RDFa and checks types, properties and @id references.

• Headers, Robots.txt & Sitemap Checker

  Follows redirects and checks HTTPS, HSTS, caching, compression, robots.txt and the sitemap.

• AI Crawler Access Checker

  Shows which AI crawlers robots.txt allows, and whether content is in the raw HTML.

Guides

• AI Crawler Control Guide: Allow or Block Each Bot

  A practical guide for web developers to understand what OpenAI, Perplexity, and Google crawlers do, how to allow or block them via robots.txt, and common mistakes.

• Canonical tags: 7 common mistakes and how to fix them

  A guide to the most common canonical tag mistakes and the steps to identify and fix them using Google Search documentation and RFC 6596.

• Implement Product Schema in WooCommerce Without Duplicates

  Use WooCommerce's built-in Product schema, customize it with filters, avoid duplicate markup, and verify results using Google's structured data tools.

• What Each Redirect Hop Costs You

  Understand the performance cost of each redirect hop, HTTP status semantics, HSTS optimization, and how to verify your chains.

Glossary of AI terms

47 short, sourced definitions of the AI terms that matter when you build websites: crawlers, structured outputs, MCP, AI search and security. Browse the glossary.

Where this domain comes from

miraks.biz was the site of Mirax, a small web studio in Cheboksary, Russia, from around 2013 to 2018. It is now an independent project that keeps the same subject: building websites, and the tools that help you check them. Read more on the About page.