Tips, guides and insights on SEO.
Schema markup is code that helps search engines understand your content and display rich results in Google. Learn what schemas to use, how to implement JSON-LD, and how to validate your structured data.
Read more
Hreflang tags tell Google which language version of a page to show to users in different countries. Learn the correct syntax, common implementation mistakes, and how to validate yours with a free tool.
Read more
Keyword density is the percentage of times a keyword appears on a page relative to the total word count. Learn what density is ideal in 2025, when it becomes keyword stuffing, and how to check yours free.
Read more
robots.txt is a text file that tells search engine bots which pages of your website they can and cannot crawl. Learn how it works, how to write one correctly, and common mistakes that can kill your rankings.
Read more
Every website produces CO2. The average web page emits 0.5g of CO2 per page view — adding up to tons per year for busy websites. Learn how to measure your website's carbon footprint and reduce it.
Read more
A canonical URL tells Google which version of a page is the "original" when duplicate content exists. Learn what canonical tags are, when to use them, and how to check if yours are set correctly.
Read more
A complete SEO audit reveals exactly why your website is not ranking. Learn the 11 key areas to check and how to fix each issue — with a free tool included.
Read more
Discover how Optyxo scans your website for technical SEO issues — meta tags, page speed, broken links, mobile-friendliness — and gives you an actionable report in under a minute. No registration required.
Read more