The Google Chrome is one of the most popular Internet browser available for us to use. The Google Chrome is undoubtedly the best among all, but not the safest or bugless browser. This browser has its errors and bugs, that may annoy its users. One of the most common errors that people face is the ERR_SPDY_PROTOCOL_Error. I’ve encountered this error many times, and after getting fed up, I decided to Fix This Webpage is not available error permanently.

The ERR_SPDY_PROTOCOL_Error fix is pretty simple and will fix the issue permanently within few minutes. If you are interested in knowing the way to fix “this webpage is not available err_spdy_protocol_error”, then you should follow the methods and steps mentioned in this post carefully. Here are the methods that’ll help you to fix this weird error on Google Chrome permanently.

Reason Behind SPDY_PROTOCOL Issue?

The Webpage is not available error  is pretty common for the Google Chrome users. Many of the chrome users have faced this error once in a while. Well, the ERR_SPDY_PROTOCOL is the protocol made by Google to ensure the safety and loading speed of the most popular websites that you visit like Facebook, Google, YouTube, Twitter and others. Depending upon the sites you visit, you’ll see the page with err_spdy_protocol_error facebook or err_spdy_protocol_error chrome, etc.

Mainly the issue arises because Google has discontinued the SPDY Protocol, which deals with the HTTP sockets. So, you’ll face this issue while using the (i) Outdated version of Google Chrome Browser, (ii) Antivirus or Firewall Blocking. Fixing these reasons will help you to deal with the SPDY_PROTOCOL Error permanently.

How to Fix err_spdy_protocol_error Permanently

The interruption in the internet browsing can cause serious issues with those whose life is dependant on the Internet. The Offices, Banks and the common people who use internet to get things done get affected with the SPDY_PROTOCOL_ERROR. Here are some of the best and working methods, that’ll help you to fix the issue within a few clicks on mouse.

Method 1: Flush Internal Chrome Sockets

Flushing the Internet HTTP sockets is helpful in most of the cases to fix the err_spdy_protocol_error chrome. Here are the steps to Flush Internet Chrome sockets to fix the error permanently.

    1. First of all, open the Google Chrome Browser and type “Chrome://net-internals” in the Address bar.
    2. Make sure you type the address without the Quotes (“). Otherwise, click on the URL to open the page.
    3. On the Chrome Net internals page, you’ll see the “Sockets” menu on the left side. Click on it to open the Sockets Page.
    4. On the Sockets Page, you’ll see a red bar appearing on top. Find the Arrow facing downwards on the right side of the red bar. Click on it to open the drop-down menu, and select “Flush Sockets”.
    5. Now, the Chrome will flush the Sockets, and you are ready to visit the site you are facing error while visiting.
    6. If you are still not able to visit the site, then type or paste the following URL in address bar. “chrome://net-internals/#events&q=type:SPDY_SESSION%20is:active”
    7. If you have active SPDY_PROTOCOL Error pages open, then you’ll see the list of all connections and sockets.
    8. Now, click on the “Flush Socket Pools” button to flush the sockets and now you are ready to go.
    9. Check again if the issue is fixed or not. I can bet you that the problem is fixed permanently now.


This is the first method to fix the error permanently. But sometimes, the odds may not be in your favour. So, you’ll not see any results after following the method shared above. So, you’ve to follow other methods and check if the issue is fixed or not. Here is the next method, which will help you if the ISP or DNS issue is causing the error while browsing your favourite websites.

Also Read: Manage and View Saved Passwords in Chrome Browser

Method 2: Flush DNS

Sometimes, your ISP might be blocking the connections to favorite sites, and that’s why you are witnessing the err spdy protocol error chrome. Well, there is a smart way to fix this issue permanently within few seconds. Here are the steps to Flush the DNS cache stored in your PC and fix the problem.

  • For WINDOWS Users
  1. First of all, open the Command Prompt on your Windows computer. You can open it by searching in the Start Menu.
  2. In the command prompt, type Following commands
  3. Ipconfig/ flush DNS
  4. Ipconfig/ renew
  5. Now, Restart the Chrome browser and recheck if the sites are loading properly or you are still facing the same error.

err_spdy_protocol_error chrome

  • For Linux Users
  1. Boot your Linux
  2. Now you have to open the “Terminal” on your Linux desktop.
  3. In the Terminal, get Sudo access using “sudo -i” command and then type the following command:  “nscd -I hosts“.
  4. Press ENTER and restart the Browser to see if the issue is resolved or not.
  • For MacOS Users
  1. Boot your MacOS(It works on all the versions of Mac)
  2. The MacOS users will have to open the Terminal on their desktop and enter the following command: “dscacheuti –flushcache; sudo killall –HUPmDNSResponder
  3. After entering the command, press ENTER and wait for it to flush the DNS.
  4. Now, Restart the Router & browser and check if the sites are loading correctly or you are still facing the err_spdy_protocol_error Chrome.

Method 3: Clear Temporary Files

Your Computer keeps the temporary files stored in the disk to allow you to access them instantaneously we can also call it to cache. That’s why when you click back on the Chrome or any other browser, the previously visited page loads instantly. These temporary files hold the data like History and cache, which is used for effective browsing experience. So, clearing the temporary files will help you fix the issue Permanently. Here is how you can Clear Temporary files from Windows computer.

Windows Temporary Files

  1. First of all, press “Windows + R” key combination on the Keyboard to open the Run Window.
  2. In the RUN window, type “%temp%” without the Quotes and press ENTER.
  3. You’ll now see the Temporary files folder on your desktop.
  4. Press “Ctrl+A” to select all folders and files and press “Shift+Delete” key combination to permanently delete all of the files and folders.
  5. Restart the Chrome browser after clearing the temporary files and hopefully you;ll not face the issue again. You can also clear your temporary files using Disk Cleanup tool, just press Start button and type Disk Cleanup and it will open window where you have to select all the temporary files and delete it.

this webpage is not available err_spdy_protocol_error

Method 4:  Update Chrome Browser

As the Google has discontinued their support for the SPDY_Protocol, the older versions of the Google Chrome browser will show you this error. If all of the methods as mentioned above are not working for you, then you should follow this method. Updating the Chrome browser is your last resort for fix this issue permanently on Chrome Browser. Here is how you can update the Google Chrome Browser.

  1. Open the Google Chrome Browser and Click on the Menu Button. The Menu Button is Three Vertical Dots on the Top Left corner of the Window.
  2. Now, Hover your mouse over “Help” and select “About Google Chrome”.
  3. On the About Google Chrome Page, you’ll see the version details of the Chrome you’ve installed in the Computer.
  4. In most cases, the Chrome Browser will automatically check for the available updates and will notify you. If that’s not the case, then click on “Check for Updates” button to update the Chrome Browser.
  5. After updating, I can bet that the issue is permanently fixed and you are ready to visit your favourite sites.

err_spdy_protocol_error chrome

Final Words 

The Annoying error which is haunting you will not come back again if you fix it using any of the methods as mentioned above. The Google Chrome Browser is a dominant web browser with tons of features, but the error like SPDY_Protocol Error may ruin your browsing experience. If you or your friend face this issue again, then it’s essential to follow the measures to fix the issue. I hope you’ll follow these methods to Fix err_spdy_protocol_error Permanently. If you are facing any issues while following the methods or steps, please make sure to comment below.

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