Crawling, indexing, redirects, sitemaps, structured data and the server side of SEO.
A canonical tag tells search engines which URL is the main version of a page. It is the standard fix for duplicate URLs, but it is a hint, not a command, and a few common mistakes make Google ignore it.
Google crawls and indexes websites using a smartphone crawler. Whatever your mobile page shows is what Google ranks. Here is a checklist to make sure your mobile version is not quietly hiding content.
A sitemap is a list of the pages you want search engines to find. Simple in theory, but most sitemaps we check include redirects, 404s or noindexed pages. Here is how to build a clean one.
Crawl budget is one of the most over-discussed topics in SEO. For most sites it simply is not a problem. Here is how to tell whether it is for yours, and what actually improves crawling when it is.
Robots.txt is a tiny text file with the power to hide your whole site from Google. Here is how it works, what it cannot do, and copy-ready examples for common setups.
