Guides

SEO guides

Short, practical explanations with examples you can copy. Each guide links to a free tool so you can check your own site straight away.

• Open Graph tags: the practical guide

  What Open Graph tags are, the five you actually need, image sizes that work everywhere, and how to fix blank or outdated link previews on Facebook, LinkedIn, Slack and X.

• Robots.txt: syntax, examples and mistakes to avoid

  How robots.txt works, with copy-paste examples for WordPress, Shopify-style stores and single-page apps, the rules Google follows, and the mistakes that hide whole sites.

• Canonical tags explained

  A clear guide to canonical tags: what they do, when to self-reference, how to handle parameters, pagination, http/https and www, and the conflicts that make Google ignore them.

Prefer to check first? See all free tools.