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Error 404

Error 404

Error 404, commonly known as “Page Not Found,” is a standard HTTP status code that indicates a web server’s inability to locate the requested webpage or resource. This error occurs when a user attempts to access a URL that doesn’t exist or has been moved or deleted. In essence, it signifies the absence of the requested content on the server.

Importance In the context of marketing, Error 404 plays a significant role in user experience and website performance. When a potential customer encounters a 404 error while trying to access a specific page, it can lead to frustration and abandonment of the website. This negative experience can harm a brand’s reputation and potentially result in lost opportunities for conversions and sales. Therefore, it is crucial for marketers to address and manage Error 404 effectively to maintain a seamless user journey and uphold the credibility of their online presence.

Examples/Use Cases

  • E-commerce Site: Imagine a user is exploring an e-commerce website, and they click on a product link. If they encounter a 404 error instead of the product page, they may abandon the site, resulting in lost sales.
  • Content Marketing: In content marketing, broken links that trigger 404 errors can damage the credibility of the content and discourage readers from returning to the website.


  • Web Development
  • User Experience
  • SEO (Search Engine Optimization)
  • Website Maintenance

Synonyms/Acronyms Synonyms

  • Page Not Found
  • 404 Error
  • Resource Not Found

Acronyms N/A

Key Components/Features

  • HTTP Status Code: The 404 error is signaled by the HTTP response status code 404.
  • Custom Error Pages: Websites can create custom 404 error pages to provide users with a more informative and user-friendly experience.
  • Redirects: Webmasters often use 301 redirects to guide users from outdated or broken URLs to relevant pages.

Related Terms

  • HTTP: HyperText Transfer Protocol, the foundation of data communication on the World Wide Web.
  • URL: Uniform Resource Locator, a reference to a web resource’s location.

Tips/Best Practices

  1. Regularly monitor your website for broken links and fix them promptly.
  2. Customize your 404 error page to provide helpful information, such as navigation links and a search bar.
  3. Implement 301 redirects to ensure that users are directed to the correct page when URLs change.
  4. Use Google Search Console to identify and address 404 errors for better SEO.
  5. Consider creating a custom 404 page with a touch of humor or creativity to engage users.

Further Reading/Resources


What causes a 404 error on a website?

A 404 error occurs when a web server cannot find the requested page or resource. This can happen due to various reasons, such as a mistyped URL, deleted content, or broken internal links.

How can I check if my website has 404 errors?

You can use online tools like Google Search Console or website auditing software to identify 404 errors on your site. These tools can provide a list of URLs triggering 404 errors.

Is a 404 error bad for SEO?

Yes, 404 errors can negatively impact SEO. When search engines encounter numerous 404 errors on a website, it can lead to a lower ranking in search results. It’s essential to fix these errors promptly for better SEO performance.

Can I customize my website’s 404 error page?

Yes, you can create a custom 404 error page to provide a more user-friendly experience. This page can include helpful information, navigation links, and even a search bar to guide users back to relevant content.

How do I redirect a broken URL to a working page?

You can use 301 redirects to send users from a broken URL to a working one. This not only improves the user experience but also preserves SEO value by transferring link authority to the new page.

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