Free guides on technical SEO, on-page optimization, link building and more
Crawlability, indexability, site structure, redirects, canonicals, hreflang and the technical foundations of search visibility.
Core Web Vitals are Google's real-world page experience ranking signals — and most sites are failing them without knowing it. Here's what each metric measures, what scores to aim for, and how to fix every issue.
Read ArticleThe .htaccess file is one of the most powerful SEO tools on your server — and one of the easiest to break. Here's what it does, how to write redirects correctly, and how to avoid the mistakes that take sites offline.
Read ArticleBroken links damage your rankings, waste crawl budget, and frustrate visitors. Here's how to find every broken link on your site, prioritize which ones matter most, and fix them the right way.
Read Articlehreflang tags tell Google which version of your page to serve to which audience. Get them wrong and you'll serve the wrong language to the wrong country. Here's exactly how they work and when you need them.
Read ArticleSchema markup tells Google exactly what your content is — and earns you rich results like star ratings, FAQs, and price displays that dramatically boost click-through rates. Here's how it works.
Read ArticleRedirect chains dilute your ranking signals, slow down your pages, and waste crawl budget — all without any obvious warning. Here's how they form, why they hurt, and how to find and fix them.
Read ArticleHTTPS is a confirmed Google ranking signal — but mixed content errors quietly undermine it. Here's what mixed content is, why it matters, and how to find and fix every instance on your site.
Read ArticleDuplicate content splits your ranking signals across multiple URLs. Canonical tags fix that — but only when implemented correctly. Here's everything you need to know.
Read ArticleAn XML sitemap tells Google where all your pages are — but a broken or bloated one can cause more harm than good. Here's what sitemaps do, how to structure them correctly, and how to validate yours.
Read ArticleYour robots.txt file controls what search engines can and can't crawl. One wrong line can block your entire site from Google. Here's what it does, how to write it correctly, and how to test it.
Read ArticleA broken heading structure confuses both users and search engines. Here's what H1, H2, and H3 tags actually do for SEO, the mistakes that hurt rankings, and how to audit any page in seconds.
Read ArticleMeta tags are some of the most misunderstood elements in SEO. Here's which ones Google actually uses, which ones it ignores, and how to get them right on every page.
Read ArticleTechnical SEO is the foundation every website needs before content and links can do their job. Here's what it actually covers — crawlability, indexing, sitemaps, HTTPS, redirects, schema — and where to start fixing it.
Read ArticleOur technical tools check redirects, canonicals, robots.txt, sitemaps and more in seconds.