A practical technical SEO checklist for a custom website

Custom architectural illustration of connected software layers

In this guide

01 / Check the actual HTTP response.02 / Standardize the public URL.03 / Make content relationships useful.04 / Use accurate metadata and structured data.

Technical SEO is most effective when the diagnosis reaches the code and server configuration. Duplicate URLs, conflicting canonicals, redirect chains, inaccessible content, and poor internal links can create uncertainty. The remedy should fit the site’s publishing process, not just a one-time spreadsheet.

Check the actual HTTP response.

Important pages should return the expected status. A missing page should return 404 rather than a successful status with an error message. Redirects should point to relevant destinations and avoid loops or unnecessary chains. Test the deployed response, not only source files.

A concrete example

A ColdFusion site exposes both directory URLs and index.cfm pages, and several old addresses redirect to the home page. A cleaner configuration would standardize public URLs, return permanent redirects to relevant destinations, and keep navigation, canonical tags, and sitemaps consistent.

Standardize the public URL.

Navigation, canonicals, sitemaps, breadcrumbs, and redirects should agree. For a ColdFusion site using directory URLs, the default index.cfm document can remain an implementation detail. Case, slash, and host policies should be consistent without stripping useful query behavior blindly.

The implementation boundary

We inspect status codes, route behavior, canonical signals, robots directives, XML sitemaps, rendering, and structured data. Representative page types are checked rather than assuming every template behaves identically. Fixes are verified in actual responses and then reviewed using available search tools when the site has been recrawled.

Make content relationships useful.

Distinct service pages should address distinct commercial needs. Supporting guides can answer specific educational questions and link to the relevant services. Consolidate near-duplicates rather than expanding a site merely because several keyword variants exist.

Use accurate metadata and structured data.

Titles and descriptions should fit the page. Structured data should describe visible, accurate content; invented reviews or credentials do not belong in it. Check robots directives, crawl access, XML sitemap entries, and the consistency of canonical signals. Search results remain subject to the search engine’s systems.

Turn the diagnosis into a reviewable first phase.

Write a short brief that names the current obstacle, the desired behavior, the people involved, and the systems that own the relevant data. Include examples of ordinary and exceptional cases. This does not need to be a complete technical specification; it should make the next useful question clear.

A scoped assessment can produce an inventory, a prioritized issue list, an architecture comparison, or a working slice. The choice depends on what uncertainty is preventing progress. Keep assumptions visible and make the acceptance checks specific enough that both the business and the developer can recognize when the work is ready.

Questions to take into the first conversation.

How are pages generated and published?
Which URLs should be authoritative?
Has a recent migration or redesign changed the site?

Full Blown works directly with businesses and teams on the design, programming, data, and integrations behind these questions. We can discuss a focused improvement or a wider modernization, with a clear scope and practical ownership plan.

Related services

Primary reference

Google Search Essentials. Check current product documentation against the versions and environment used in your project.

Let’s talk about the actual problem.

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