A technical SEO checklist covers the behind the scenes checks that let Google find, understand and trust your website. For a small business it means confirming pages are indexable, using HTTPS, choosing one preferred URL, keeping robots.txt and your sitemap tidy, matching mobile and desktop content, passing Core Web Vitals and fixing broken pages.
- A technical SEO checklist makes sure Google can crawl, index and render your pages before you worry about content or links
- Google prefers HTTPS and a single preferred version of each URL
- Robots.txt manages crawling, and it is not a way to keep a page out of Google
- Google says small sites with good internal linking may not need a sitemap, though most CMS platforms create one anyway
- Core Web Vitals targets are 2.5 seconds for loading, 200 milliseconds for interaction and 0.1 for layout shift
- Good page experience helps, but Google says relevant content can still win without it
Table of Contents
What a technical SEO checklist covers
Our guide on what SEO is and how it works explains that technical SEO is the foundation layer, and this technical SEO checklist turns that idea into practical checks. It focuses on crawling, indexing, security, speed and errors, not keywords or content.
You do not need to be a developer to run most of it. Free tools such as Google Search Console and PageSpeed Insights cover many checks, and your web developer can handle fixes you cannot make yourself.
The technical SEO checklist: 10 essential checks
Our post on why your website might not show on Google covers symptoms, and these ten checks find the causes.
1. Make sure your pages can be indexed
Start with Google Search Console and look at which pages are indexed and why others are not. An accidental noindex tag left over from a redesign is one of the most common causes of missing pages. Check your key pages first.
2. Use HTTPS everywhere
Google’s guidance on consolidating duplicate URLs says it generally prefers HTTPS over HTTP. Redirect HTTP to HTTPS, keep your certificate valid and avoid redirecting from HTTPS back to HTTP, which pushes Google toward the insecure version.
3. Choose one preferred URL
Pick one version of your address, such as with or without www, and redirect the others to it. The same Google page recommends a self referential rel canonical on each page, which it describes as a strong signal, not a command, so Google may choose differently.
4. Check robots.txt
Our SEO services always review this file, because mistakes can hide a whole site. Google’s robots.txt introduction says it is mainly for managing crawler traffic and is not a mechanism for keeping a page out of Google. Use noindex or a password for that, and avoid blocking CSS or JavaScript your pages need.
5. Review your XML sitemap
Google’s sitemap overview says a site of about 500 pages or fewer with good internal links may not need one, but a sitemap helps new sites and large ones. WordPress and similar platforms often create it automatically. A sitemap does not guarantee crawling or indexing, so list only pages you want found.
6. Check mobile and desktop match
Google indexes using the mobile version of your site, according to its mobile first indexing guide. Primary content, titles, meta descriptions, headings, image alt text and structured data should be equivalent, and content should not hide behind clicks Google will not trigger.
7. Measure Core Web Vitals
Our guide to SEO for small businesses explains why speed matters to visitors. Google’s web.dev guidance sets the good thresholds at 2.5 seconds for largest content loading, 200 milliseconds or less for interaction and 0.1 or less for layout shift, measured at the 75th percentile. Interaction to Next Paint replaced First Input Delay in 2024.
8. Fix broken pages and redirects
Google’s crawling documentation says 404 and 410 are treated the same and that a removed page should return a real error, not a success code, or Search Console may flag a soft 404. A 301 is a strong redirect signal and a 302 a weak one. Google follows up to 10 redirect hops, so keep chains short.
9. Strengthen internal links
Google says every page you care about should have a link from at least one other page on your site. Use normal links that Google can follow, with descriptive text, and avoid orphan pages that nothing links to.
10. Monitor on a schedule
Our guide to why rankings suddenly drop shows how a small technical fault can cost traffic. Check Search Console monthly and run a crawl after every redesign or migration. Semrush recommends weekly scheduled audits in its guide, which is a vendor view.
How much does page experience really matter?
Our post on why a competitor ranks above you lists technical issues among the usual causes, so keep the checklist in proportion. Google’s page experience page says Core Web Vitals are used by its ranking systems, but good scores do not guarantee top rankings.
It also says Google seeks to show the most relevant content even if the page experience is poor, and that great page experience matters most when many helpful alternatives exist. Chasing a perfect score for SEO alone may not be the best use of your time.
Using the technical SEO checklist in practice
Our guide to how long SEO takes explains why early months usually include a technical audit and fixes. Work through the list in order, because indexing and security problems can undermine everything after them.
Fix errors that block pages first, then duplicates and redirects, then speed. If your site was built on a platform that makes changes difficult, our website development service can help rebuild the foundations.
Examples
These are illustrative scenarios rather than client case studies, but they show how a technical SEO checklist tends to pay off.
A café relaunched its site and left a noindex tag from the staging version in place. Its pages disappeared from Google until the tag was removed and the pages were crawled again.
A tradesperson retired old service pages that showed a friendly “not found” message but returned a success code. Search Console flagged soft 404 errors, and returning a proper 404 or a 301 to a relevant page fixed it.
A small shop served its site on both HTTP and HTTPS, with and without www. Redirecting everything to one HTTPS version gave Google a single preferred address.
Ready to fix your website foundations
A clean technical foundation lets your content and links do their job. At Atomic Artisans we run technical audits and fixes through our SEO services, using this technical SEO checklist as the starting point. Take a look at our pricing, book a call with our team, or get in touch through our contact page to get started.
