Technical SEO

What Google requires before a JobPosting shows up in search, and the validThrough/remove-when-filled discipline that decides whether it stays there.

Why internal search result URLs need noindex, the exact order that makes the tag work, how these pages get linked in, and the one query that deserves a real page instead.

Why the X-Robots-Tag HTTP header can deindex PDFs and images that meta robots never reaches, and the one ordering mistake that quietly disables it.

FAQ and HowTo markup no longer expand most listings in Google search, but the schema still has a real job worth doing correctly.

A field guide to what URL parameters do to a crawler, and which of the four common fixes actually applies to each kind of parameter.

What breadcrumb navigation does for users and crawlers, how to build the hierarchy correctly, and the mistakes that quietly break both.

What a real 404 page should say, why a genuine 404 status beats a faked 200, and when a redirect — not an error page — is actually the right call.

How to read your server's raw log files to see exactly which pages crawlers visit, how often, and where crawl budget is wasted.

A practical guide to diagnosing crawl errors - server errors, 404s, redirect loops, robots.txt blocks, DNS failures and soft 404s - and knowing which ones actually need fixing.