Technical SEO

A technical SEO checklist for new websites

The foundations to check before and after launch so search engines can crawl, render and understand your site.

By the Data Sphere Focus team

Crawlability and indexation

  • Confirm robots.txt allows crawling of public pages.
  • Remove any development-stage noindex tags before launch.
  • Ensure important content is present in the HTML rather than loaded only by JavaScript.
  • Make sure every page is reachable through normal links, with no orphan pages.

XML sitemap

Publish an XML sitemap listing every indexable page, reference it in robots.txt and submit it in the search engine webmaster tools you use. Keep it updated when pages are added or removed.

Canonical URLs and duplicates

Each page should declare a canonical URL. Choose one version of your domain (with or without www, always HTTPS) and redirect the others to it.

Titles, descriptions and headings

Give every page a unique, descriptive title and meta description, a single H1 and a logical H2/H3 hierarchy. Duplicated titles make it harder for search engines to tell pages apart.

Structured data

Use JSON-LD to describe your organisation, website, services, articles and breadcrumbs where relevant. Only mark up information that is accurate and visible to visitors.

Redirects from old URLs

If you are replacing an existing site, map every old URL to its closest new equivalent with a permanent redirect. Our website redesign service treats this mapping as a core deliverable.

Next steps

If you would like help applying these ideas to your own website, request a free consultation or explore our services.