flush dns cache windows
flush dns cache windows

flush dns cache windows


Hey there, readers! If you’ve noticed your internet crawling at a snail’s pace or your web pages refusing to load, you might need to flush your DNS cache. Don’t worry; it’s a quick and easy fix that can give your internet connection a speedy boost. Let’s dive into the what, why, and how of flushing your DNS cache on Windows.

What is DNS Cache?

DNS (Domain Name System) cache is like a temporary database that stores the IP addresses of websites you’ve recently visited. When you type in a web address, your computer consults this cache to find the corresponding IP address, which is then used to connect to the website. This speeds up your browsing experience by avoiding the need to look up the IP address every time.

Why Flush DNS Cache?

So, why flush DNS cache? Over time, your DNS cache can become outdated or cluttered with bad entries, leading to:

  • Slow or unreliable internet: Incorrect DNS entries can lead to delays in resolving website addresses.
  • Website loading issues: Outdated DNS records may prevent websites from loading properly.
  • Security vulnerabilities: DNS cache poisoning attacks can redirect you to malicious websites.

How to Flush DNS Cache on Windows

Method 1: Using Command Prompt

  1. Open Command Prompt as administrator.
  2. Type the following command and press Enter:
ipconfig /flushdns

Method 2: Using PowerShell

  1. Open PowerShell as administrator.
  2. Type the following command and press Enter:

Related Commands and Tools

  • nslookup: This command checks the DNS cache for a specific domain name.
  • ipconfig /displaydns: Displays the contents of the DNS cache.
  • dnscmd /clearcache: Clears the DNS cache.

DNS Cache in Different Operating Systems

Flushing DNS cache is not limited to Windows. Here’s how to do it in other operating systems:

Operating System Command
macOS dscacheutil -flushcache
Linux (Ubuntu) sudo systemd-resolve –flush-caches
Android Go to Settings > Network & internet > Wi-Fi > Tap and hold on the connected network > Forget > Reconnect


Flushing DNS cache on Windows is a quick and effective way to resolve internet connectivity issues and improve your browsing experience. Whether you encounter slow loading websites or persistent DNS errors, clearing the cache can be the solution.

If you’d like to further explore DNS and other topics related to optimizing your internet connection, check out our other articles:

  • [How to Change DNS Server on Windows]
  • [Best DNS Servers for Faster Internet]
  • [Troubleshooting Common Internet Connection Problems]

FAQ About Flush DNS Cache Windows

1. What is DNS cache?

  • DNS cache is a temporary storage of Domain Name System (DNS) records that are used to resolve domain names to IP addresses.

2. Why should I flush my DNS cache?

  • Flushing the DNS cache can help resolve internet connection issues, such as slow loading websites or inability to access certain websites.

3. How do I flush my DNS cache in Windows?

  • Open the Command Prompt as administrator and run the command: ipconfig /flushdns

4. What does the "ipconfig /flushdns" command do?

  • It sends a message to the DNS resolver to clear the cache and start fresh.

5. Is it safe to flush my DNS cache?

  • Yes, it’s safe to flush your DNS cache as it doesn’t delete any important data.

6. How often should I flush my DNS cache?

  • It depends on how frequently you experience internet connection issues. Generally, it’s not necessary to flush it regularly unless you’re experiencing problems.

7. Can I use other methods to flush my DNS cache?

  • Yes, you can also use third-party tools or utilities to flush the DNS cache.

8. What if flushing the DNS cache doesn’t fix my internet issues?

  • If flushing the DNS cache doesn’t resolve the problem, it may indicate other underlying issues with your network or internet connection.

9. Can I prevent my DNS cache from getting stale?

  • Regularly updating your operating system and browser can help maintain a fresh DNS cache.

10. Is it different from clearing browser cache?

  • Yes, flushing the DNS cache is not the same as clearing the browser cache. Browser cache stores website data for faster loading, while DNS cache stores DNS records.