How to Fix Error 404 (Web Server / Browser)
Quick Answer
Error 404 (Not Found) indicates that the server cannot find the requested resource. This often means the web page has been moved, deleted, or the URL was typed incorrectly. The fastest fix is to recheck the URL for typos or refresh the page.
What Causes This Error
- Incorrectly typed URL or broken link.
- The web page or resource has been moved or deleted from the server.
- Website server configuration issues, such as incorrect routing or missing files.
- DNS resolution problems preventing the browser from finding the correct server.
- Caching issues in the browser or an intermediary proxy server.
- Problems with the website's permalink structure or content management system settings.
Step-by-Step Fixes
1Verify the URL and Refresh the Page to Fix Error 404
- Examine the URL in your browser's address bar for any typographical errors, such as misspellings, incorrect capitalization, or missing characters.
- Correct any identified errors in the URL.
- Press the Enter key or click the refresh button in your browser to reload the page with the corrected URL.
- If the URL appears correct, simply refresh the page by pressing F5 (Windows) or Command+R (macOS) to ensure it wasn't a temporary loading issue.
2Clear Browser Cache and Cookies
- Open your browser's settings or preferences menu. This is often accessible via a three-dot or three-line icon.
- Navigate to the 'Privacy and security' or 'History' section.
- Locate the option to 'Clear browsing data,' 'Clear cache,' or 'Clear cookies and site data.'
- Select 'Cached images and files' and 'Cookies and other site data.' Ensure other options like 'Browsing history' are deselected unless you intend to clear them.
- Confirm the action to clear the selected data. Restart your browser and attempt to access the page again.
3Check for Website Changes or Use a Search Engine
- If you suspect the page has moved, navigate to the website's homepage (e.g., by typing 'example.com' instead of 'example.com/missing-page').
- Use the website's internal search function to locate the content you were looking for.
- Alternatively, use a search engine (like Google or Bing) to search for the page's title or keywords. This may reveal the new URL if the page has been relocated.
- If the page is part of a larger section, try navigating to the parent directory by deleting the last part of the URL (e.g., change 'example.com/blog/article' to 'example.com/blog/').
4Test with a Different Browser or Device
- Open a different web browser (e.g., if you are using Chrome, try Firefox or Edge) and attempt to access the problematic URL.
- If the page loads correctly in the alternative browser, the issue may be specific to your primary browser's settings or extensions.
- Try accessing the URL from a different device, such as a smartphone or tablet, using a different network (e.g., cellular data instead of Wi-Fi).
- If the page loads on another device or network, the problem may be related to your local network configuration or a device-specific issue.
Advanced Fixes
Flush DNS Cache
- Open the Command Prompt (Windows) or Terminal (macOS/Linux) with administrative privileges. On Windows, search for 'cmd', right-click, and select 'Run as administrator'. On macOS, search for 'Terminal' in Spotlight.
- For Windows, type 'ipconfig /flushdns' and press Enter. You should see a confirmation message 'Successfully flushed the DNS Resolver Cache'.
- For macOS, type 'sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder' and press Enter. You will be prompted for your administrator password.
- Restart your web browser and attempt to access the URL again. This clears outdated DNS entries that might be directing your browser to an incorrect server.
Check for DNS Server Issues
- Open your network adapter settings. On Windows, go to 'Settings' > 'Network & Internet' > 'Change adapter options'. On macOS, go to 'System Settings' > 'Network'.
- Select your active network connection (e.g., Wi-Fi or Ethernet), right-click, and choose 'Properties' (Windows) or click 'Details' > 'DNS' (macOS).
- Change your DNS server settings to use public DNS servers like Google DNS (8.8.8.8 and 8.8.4.4) or Cloudflare DNS (1.1.1.1 and 1.0.0.1).
- Save the changes, close your browser, and reopen it. Then, try accessing the problematic website again. This can resolve issues where your current DNS server is unable to correctly resolve the website's domain name.
Frequently Asked Questions
What does 'Error 404 Not Found' mean?
Error 404 Not Found is a standard HTTP status code indicating that the server could not find the requested resource. This means the web page, image, or other file you tried to access does not exist at the specified URL on the server.
Is an Error 404 always a problem on my end?
No, an Error 404 is not always a problem on your end. While it can be caused by a mistyped URL or a cached issue on your device, it is frequently caused by the website owner moving or deleting the page, or by server-side configuration errors. If multiple users report the same issue, it's likely a server-side problem.
How can I prevent encountering Error 404 messages?
To minimize encountering Error 404 messages, always double-check URLs for accuracy before navigating. If you bookmark pages, periodically verify that the links are still active. For website owners, regularly check for broken links on your site and implement proper redirects for moved or deleted content.
Does Error 404 affect SEO?
Yes, a high number of Error 404 pages on a website can negatively impact its Search Engine Optimization (SEO). Search engines interpret many 404 errors as a sign of a poorly maintained or unreliable website, which can lead to lower search rankings. Implementing 301 redirects for moved content is crucial for SEO.