A Technical SEO Checklist for Developers

Technical SEO is largely an engineering problem hiding behind a marketing label, and getting the fundamentals right before a site launches means marketing efforts are not fighting against a technically weak foundation from day one.

A lot of SEO problems are actually engineering problems: slow page loads, missing structured data, broken canonical tags, and pages that are accidentally blocked from indexing.

We run through a checklist covering sitemap accuracy, mobile responsiveness, clean URL structures, and proper heading hierarchy on every website project before launch.

Getting these fundamentals right from the start means marketing efforts are not fighting against a technically weak foundation.

A few issues show up more often than developers expect. Duplicate content from URL parameters or trailing-slash inconsistencies confuses search engines about which version of a page to index. Missing or incorrect structured data means a business misses out on rich search results like star ratings or FAQ dropdowns that meaningfully improve click-through rates. And a robots.txt file left over from a staging environment has quietly deindexed entire production sites more than once.

A practical example: a client site with genuinely good content was ranking poorly simply because its canonical tags pointed to a staging domain left over from development, telling search engines the real content lived elsewhere. Fixing a one-line configuration issue recovered rankings within weeks.

We run this checklist as a standard, non-negotiable step before any website goes live, and revisit it after major redesigns, since technical regressions are easy to introduce accidentally when a site is restructured.