ERR_SPDY_PROTOCOL_ERROR in Chrome – How To Fix Permanently?


If we talk about the browser then without any doubts Google Chrome comes in the first place. Many people set it as a default browser because its easy user interface and its popularity thought Google Chrome is not completely secure. Sometime during different browsing websites through Google Chrome, we find the error err_spdy_protocol_error. With the display message, this webpage is not available err_spdy_protocol_error.

It is a common error faced by many users around the globe. Thought it looks tricky, but reddit err_spdy_protocol_error can be solved easily and quickly. We have developed/find and try some methods to solve chrome err_spdy_protocol_error. But before we move to the solution first let me brief you about “err_spdy_protocol_error.”

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Table of Contents

    1 What is ERR_SPDY_PROTOCOL_ERROR?2 Causes Of ERR_SPDY_PROTOCOL_ERROR3 How To Fix The ERR_SPDY_PROTOCOL_ERROR?4 Solution 1: Flush Socket Method5 Solution 2: Flush DNS Cache from System6 Solution 3: Clear Cookies and Cache from the System7 Solution 4: Update your Google Chrome Browser8 Solution 5: Use the Incognito Mode of Chrome9 Solution 6: Check Firewall and Antivirus Setting10 Solution 7: Chrome Cleanup Tool

    During surfing websites like YouTube, Facebook, Reddit, Tumblr or Wikipedia on chrome instead of the website, you will get an error like err_spdy_protocol_error. Depending upon the site you might get errors like err_spdy_protocol_error YouTube or err_spdy_protocol_error tumbler.

    For security reason, the SPDY protocol designed by chrome. It also enhances the speed of a different website. But due to this error, Google has stopped its support to the SPDY protocol.


    This SPDY protocol error correlates chiefly with the HTTP websites. There are a few reasons which cause this error, and they are:

    Firewall Blocking
    Antivirus Blocking
    Outdated Google Chrome Browser.

    This error is not affected by the use of Virtual Private Network- VPN. It can appear on your screen and drop your working speed and performance if you use VPN or not.


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    The err_spdy_protocol_error is expected to the network problems and therefore resolves quickly. To solve the err_spdy_protocol_error chrome forever, try the below given simple solutions. But before you go to the methods try of clearing the cache. Because most of the time it works as a troubleshooter and preventing the creation of a messy situation. Try it and if it doesn’t work them go to the following methods.

    Solution 1: Flush Socket Method

    The first method is to flush socket in Google Chrome. For that follow the steps given below:

    Step 1:

    Open your web browser and copy the following URL in the address bar and press Enter.
    You will observe a screen like below.

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    Step 2: Next, when the webpage opens go to the top right corner and click on the Arrow present at there and from the list click on “Flush Sockets.”

    Step 3: Now come back to the web page where you ace this error and check it is working properly if yes then err_spdy_protocol_error is solved.

    Step 4: In case the error not fixed than in the address box enter the following URL:

    Step 5: Select “Flush Socket Pools” and revisit the website you want to load to check if it is working properly or not.

    Solution 2: Flush DNS Cache from System

    To solve the reddit err_spdy_protocol_error, you can try this method of flushing the DNS cache from your laptop and pc.

    Step 1: If you are a user of Windows OS, then open the Command Prompt from the search bar and if you are a user of Linux OS, then open Terminal.

    Step 2: Next, type the following command in the Command Prompt window.

    Step 3: Copy the following command in the command prompt window and press Enter after every command.

    Step 4:

    For Windows Users:

    Ipconfig/ flush DNS
    Ipconfig/ renew

    For Linux Users-

    nscd -I hosts

    For Mac Users-

    dscacheuti –flushcache; sudo killal –HUPmDNSResponder

    Step 5:

    These commands will flush the DNS cache. Now revisit the website, you were trying to open.
    By replacing IP, you can fix this error, and in turn, you will have to complete Internet Configuration.

    Solution 3: Clear Cookies and Cache from the System

    Sometimes the err_spdy_protocol_error occurs due to security problems, so just clearing all cache and cookies from the system can also help you. Follow the steps given below:

    Step 1: Open your browser and go to the Settings and click on the History tab.

    Step 2: Now find and click on the Clear browsing Data option.

    Step 3: By clicking it, a pop up will show. Here check the heck box for the options “Cached Images and Files,” and “Cookies and Other site and plug-in data.”

    Step 4: Do not select the other checkboxes.

    Step 5: Change the “Obliterate the following items” option to “the beginning of time.”

    Step 6: At last click on Clear browsing data option.

    Solution 4: Update your Google Chrome Browser

    Another reason for err_spdy_protocol_erroror this web page is not an available error is the outdated version of Google Chrome. As I stated above Google does not support the SPDY protocol now, and hence this error exists due to the existence of the SPDY protocol. So it is recommended that if you don’t want to get an error then download the updated version of Google Chrome browser. You can get this latest version from the following link:

    Solution 5: Use the Incognito Mode of Chrome

    One more additional method is to open your website in incognito mode. It is simple as well as completed in few seconds. To open incognito mode of Google Chrome, follow the below-given route or use the shortcut key.

    Open Google Chrome>> Menu>>New Incognito Window.


    You use the shortcut key to open incognito mode: Ctrl+ Shift+ N

    Solution 6: Check Firewall and Antivirus Setting

    Blocking of antivirus and firewall installed on your pc might also the reason for this error. So first check the firewall isn’t block. Then after check for your antivirus. To resolve the problem after adding the sites blocked by the err_spdy_protocol_error to the Web Shield exclusion of the antivirus software, follow the steps given below:

    Step 1: Go to the Settings in the Avast Security software of your system.

    Step 2: You will find the active protection tab. Here, click on Customize Web Shield Protection.

    Step 3: Now add the required websites to this section individually.

    Note that if you have Avast or any other antivirus security software, then you can try this method. But note that you add correct URL. Otherwise, the problem not solve.

    You can also disable the HTTPS Scanning after opening Avast Web Shield to solve this problem. For that click on Setting and click on the checkbox beside Enable HTTPS Scanning.

    Solution 7: Chrome Cleanup Tool

    With the Chrome Cleanup tool, one can find and solve the problem that causes this problem and ultimately solve this error, too. To download the Chrome cleanup utility go to the following link, download it and then run it to check the blocked websites.


    It is all about how to solve the err_spdy_protocol_error. We hope any of above method will work for you and in case if not even single can solve the problem then uninstalling and then reinstalling the web browser. All of the above methods will not take you’re too much of time so be patient until the problem get to solve. We hope you like this article. If you find any difficulties or stuck somewhere, you can take help of our experts using the comment section. Thank you for reading!

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