A 404 Not Found error

is a standard HTTP response code indicating that the client was able to communicate with the server, but the server could not find what was requested. This often occurs when a webpage is deleted or moved without redirecting the old URL to the new page. It’s crucial for SEO and user experience to handle these errors effectively.

40-Point Checklist to Fix 404 Not Found Errors

  1. Verify the URL: Ensure the URL is typed correctly.
  2. Check for typos: Common typos in the URL can lead to 404 errors.
  3. Refresh the page: Sometimes temporary issues can cause a 404 error.
  4. Use a search function: If available, to find the desired content.
  5. Check your sitemap: Ensure the URL is listed correctly in your sitemap.
  6. Inspect for broken links: Use tools to find and fix broken links.
  7. Redirect old URLs: If the page has moved, implement 301 redirects.
  8. Update internal links: Ensure all internal links are current.
  9. Review external links: Notify sites linking to the 404 page.
  10. Use Google Search Console: To find and fix 404 errors.
  11. Check .htaccess file: For any incorrect rewrite rules.
  12. Review server logs: To identify the cause of the 404.
  13. Check DNS settings: Ensure they are correctly configured.
  14. Verify file permissions: Incorrect permissions can cause errors.
  15. Examine the deleted pages: Restore any wrongly deleted pages.
  16. Use a custom 404 page: To improve user experience.
  17. Monitor crawl errors: Regularly check for crawl errors.
  18. Check CMS settings: Sometimes settings can cause 404 errors.
  19. Review plugin/theme updates: Ensure they haven’t caused the error.
  20. Test website navigation: To ensure it’s functioning correctly.
  21. Validate your robots.txt file: To ensure it’s not blocking important pages.
  22. Check for case sensitivity in URLs: Some servers are case sensitive.
  23. Utilize browser tools: To diagnose the issue (like DevTools in Chrome).
  24. Contact your web host: Sometimes the issue is on their end.
  25. Check for URL changes after a redesign: Often causes 404 errors.
  26. Implement a site-wide search: To help users find missing pages.
  27. Regularly update content: To avoid outdated links.
  28. Educate your team: On the importance of proper page migration.
  29. Use a link checker tool: Regularly to find broken links.
  30. Analyze traffic drops: They can be related to 404 errors.
  31. Keep your website structure clean: To avoid unnecessary 404s.
  32. Regularly backup your site: To recover any lost pages.
  33. Monitor for hacking: Sometimes 404s are due to malicious activity.
  34. Check for firewall issues: That might be blocking access to pages.
  35. Ensure proper server configuration: To avoid misrouting requests.
  36. Regularly audit your website: For overall health and issues.
  37. Educate users about 404 pages: And how to navigate from them.
  38. Use a CDN: To manage heavy traffic and reduce 404 errors.
  39. Keep an eye on website changes: Especially in large teams.
  40. Stay updated with SEO best practices: To handle 404s effectively.

Table of Technical Forums and Professional Networks

Forum/Network Description URL
Stack Overflow A platform for developers to learn, share their knowledge, and build their careers. Stack Overflow
WebmasterWorld A place for webmasters to discuss server management, site operations, and SEO. WebmasterWorld
SitePoint Forums Community for web developers and designers to discuss web programming and design. SitePoint
Digital Point A forum covering topics like search engines, business, marketing, and design. Digital Point
Warrior Forum A marketplace and forum for Internet marketing professionals. Warrior Forum
SEO Chat Forums Dedicated to helping SEOs and webmasters with SEO, search engines, and marketing. SEO Chat
Dev.to A community of software developers writing and sharing technical posts. Dev.to
Moz Community Focuses on SEO topics, with discussions led by marketing experts. Moz
Reddit – r/webdev A subreddit for web development news, resources, and conversations. r/webdev
Reddit – r/SEO A subreddit dedicated to SEO news, case studies, and strategies. r/SEO

This comprehensive approach should help in effectively managing 404 errors, enhancing your website’s SEO and user experience.


Scroll to Top