Key Takeaway
A technical SEO checklist isn’t an end in itself, it’s a way to avoid spending time on content that technical issues keep from ever ranking well. The core points: make sure Google can find and index your pages, that the site loads fast enough, that there are no duplicate or conflicting signals, and that the structure makes sense to both visitors and search engines.
This isn’t an exhaustive audit, but the checks that turn out to be wrong most often in practice, and the ones worth verifying first.
Why technical SEO comes first
Content and link building usually get the most attention, because the results are more visible. But a technical problem can completely undo the effect of good content: a page that isn’t indexed won’t show up in search results regardless of how well it’s written. Technical SEO is the foundation the rest of your strategy stands on, not a separate, optional task.
Indexing and crawlability
Before a page can rank, Google needs to be able to find it and add it to the index. Check:
- Are your important pages actually in Google’s index? You can check this quickly in Google Search Console or with a site: search
- Does your robots.txt accidentally block pages that should be discoverable
- Are there no noindex tags on pages that should actually show up in search results
- Is there an up-to-date XML sitemap submitted in Search Console, so Google picks up new and changed pages faster
These issues often creep in unnoticed after a site change, a CMS update, or a migration. A periodic check prevents a page from staying invisible for weeks without anyone noticing.
Page speed and Core Web Vitals
Speed is both a ranking factor and a direct influence on whether visitors stay or leave. The main things to check:
- Does the page load within a few seconds, including on mobile and an average connection
- Are images compressed and in a modern format, without a noticeable quality drop
- Does the page avoid unexpected layout shifts while loading, caused by elements without fixed dimensions
- Are there unnecessary scripts or plugins slowing the page down without adding functional value
Google’s PageSpeed Insights and the Core Web Vitals report in Search Console give a concrete starting point. A perfect score matters less than a page that isn’t clearly slower than the competition in the same search results.
Structure and internal links
A logical site structure helps both visitors and search engines understand how pages relate to each other.
- Is every important page reachable within a few clicks from the homepage
- Do related pages link to each other with descriptive anchor text, rather than just “click here”
- Does every page use one clear H1, followed by a logical structure of H2s and H3s
- Are there no broken links or multi-step redirect chains to the final page
Internal links are one of the most underrated technical SEO points: they help Google gauge the relative value of pages, and guide visitors to related content they might otherwise miss.
Duplicate content and canonicals
Duplicate or near-identical content, even unintentional, confuses search engines about which version to show.
- Is there a canonical tag on pages reachable through multiple URLs, such as with and without a trailing slash or with UTM parameters
- Does the site consistently run on one version: with or without www, always over https
- Are language versions correctly linked with hreflang tags, so Google shows the right version to the right audience
Structured data and metadata
Metadata and structured data (schema.org) help search engines add context to a page beyond the visible text itself.
- Does every page have a unique title and meta description that cover the content and invite a click
- Is relevant structured data implemented, such as Article, Service, FAQ, or Organization, depending on the page type
- Does the structured data validate without errors, checkable with Google’s Rich Results Test
This also plays into visibility beyond classic search results. Structured data helps not just Google, but AI search engines understand who you are and what a page covers, as I described earlier in the article on SEO for ChatGPT and AI Overviews.
How often should you check this?
A full technical audit doesn’t need to happen more than a few times a year, but a few things deserve ongoing attention: indexing status, page speed, and new crawl errors in Search Console. After any larger site change, such as a new theme, a CMS migration, or a restructuring of the site, a targeted check of these points is worth doing before moving on to content.
Want to know which content pays off most once the technical side is sorted? Read how to approach keyword research step by step.
Frequently asked questions
Want your technical SEO checked?
As an SEO specialist, I start every project with a technical check before any time goes into content or link building. Check out my approach as an SEO specialist or get in touch to have your site checked.
