A 404 isn't inherently a problem to eliminate entirely; it's the correct, honest response for a URL that genuinely no longer exists and has no reasonable direct replacement, and Google has stated that a reasonable number of 404s on a site is completely normal and not itself a ranking factor. The distinction that matters is between an intentional 404 (content genuinely removed, nothing to redirect to) and an accidental 404 (a typo in an internal link, a page moved without a redirect set up) — the second category should be fixed with a 301 redirect or a corrected link, not left as a dead end. A well-designed 404 page — with clear navigation, a search box, and links to popular content — can recover some of the visit rather than losing the user entirely.
Example
A site's 404 page includes a search bar and links to its most popular blog posts and the homepage, recovering an estimated 15% of visitors who land on a broken or outdated URL rather than losing them immediately.
Related terms
Related Reading
A/B Testing (SEO)
A/B testing in SEO is the practice of showing two versions of a page element — usually a title tag, meta description, or on-page element — to see which one earns a better click-through rate or ranking outcome.
AI Citation
An AI citation happens when an AI assistant like ChatGPT, Perplexity, Claude, or Gemini references or links to a specific page as the source for part of its answer.
AI Crawler
An AI crawler is an automated bot — like OpenAI's GPTBot, Anthropic's ClaudeBot, or PerplexityBot — that fetches web pages specifically to train or ground AI models, separate from traditional search-indexing crawlers like Googlebot.
