Skip to main content

404 Error Page Preview

A well-designed error page is not an afterthought — it is part of the user experience. When someone lands on a URL that does not resolve, what they see next determines whether they leave the site entirely or find what they actually needed. Most error pages fail at this because they treat a 404 as a dead end rather than a routing opportunity.

The Slight Future 404 page is designed around a few principles that have proven effective across years of running content-heavy sites.

Design Decisions​

The 404 page intentionally avoids gimmicks. No cartoon illustrations, no "oops" language, no attempts at humour that age poorly. Instead, it offers a clear statement of what happened and a set of direct links to the most useful entry points on the site.

Every link on the error page leads to a real section hub. The idea is simple: if someone typed a bad URL or followed a broken reference from elsewhere, they are probably looking for content in one of the main topic areas. Giving them fast access to How-To Guides, Tech Notes, Security, Web Dev, Development, Reviews, or the Journal gets them back on track faster than a search box alone.

Technical Implementation​

The error page returns a proper 404 HTTP status code. Search engines receive the correct signal that the URL is not valid, which prevents phantom pages from cluttering indexes.

The page also includes a noindex robots directive. There is no reason for a 404 page to appear in search results, and allowing it to be indexed creates noise without helping anyone.

What the User Sees​

The layout is minimal:

  • A large, clear 404 indicator so there is no ambiguity
  • A short explanation of why the page might not exist
  • A grid of links to every major section of the site
  • Consistent branding with the rest of the publication

There is no redirect timer, no auto-forward to the homepage, and no cookie-based personalisation. The user decides where to go next.

Error Pages and Crawl Behaviour​

One under-discussed aspect of error page design is how crawlers interact with them. A misconfigured 404 that returns a 200 status code — a so-called "soft 404" — confuses indexing systems and can cause legitimate pages to be deprioritised.

Slight Future returns a clean 404 status with a minimal, well-structured HTML response. The page loads quickly because it uses the same lightweight layout as the rest of the site, with no heavy JavaScript frameworks or third-party dependencies.

Accessibility​

The error page follows the same accessibility standards as every other page on the site:

  • Keyboard-navigable links
  • Strong contrast ratios
  • Readable font sizes
  • Proper heading hierarchy
  • No reliance on colour alone to convey information

When You Might See It​

A 404 typically appears when:

  • A URL was mistyped or truncated
  • An external site linked to a path that does not match the current structure
  • Content was reorganised and the old path was not redirected
  • A search engine cached a URL that was later removed

In each case, the goal is the same: get the reader to useful content as quickly as possible, with no confusion about what happened. See the full site structure from the Topics page or use the search to find specific content.