How to Fix the “400 Bad Request” error message from a website

Problem:

Whenever you access any website from a specific domain. For example http://www.abc.com/morepages/….

In the URL above, the domain is “abc.com” and “morepages” is a sub-site. The problem shows as the following:

Bad Request

Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit.

Cookie 

————————-

Solution:

It wasn’t clear at first but the error message is telling me exactly what the problem is (the keyword here ladies and gentlemen is “cookie”)

The problem was due to a cookie that has become corrupted. Not sure how it got that way but it seems that the last time it was generated something went wrong.   The easy solution is to delete all your cookies but here is the best way to solve that specific issue, I have created a customized guide for Firefox, Chrome, and Internet Explorer.

Firefox

1. Access the options from the main menu

2. Go to the Privacy tab

3. Click “remove individual cookies”

4. You will get the window below and you can search for cookies on that specific domain (in our example abc.com)

5. To delete the cookies, just select and click “Remove Cookie”

6. Try accessing the site again, if you still have issues you can repeat from step 4

Internet Explorer

1. Access the options from the main menu Tools -> Internet Options

2. Select Settings under the “Browsing history” section in the General tab

3. Select “View files”

4. You can search for those cookies and manually delete them

Google Chrome

1. Click on Settings

2. Enter “cookies” in the search field then click “Content settings”

3. Click “All cookies and site data” under Cookies

4. Select the specific cookie to delete the cookie

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That should fix the error message “400 Bad Request”, if you have any questions or concerns please leave a comment below. You can also follow me on Twitter, add me to your circle on Google+, or like my Facebook page to keep yourself updated on all the latest of Hardware and Software reviews.

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53 Responses to How to Fix the “400 Bad Request” error message from a website

  1. dadecoder says:

    I tried deleting cookies but the 400 bad request error keep on showing..

  2. Which URL are you trying to access?

    Please post a screenshot of the browser showing the error along with the address you are trying to access so I can attempt to troubleshoot

    Thanks

    • Kat says:

      I tried clearing my cookies and browsing history and nothing is helping.
      Whenever I try to go to tumblr, it shows up as a blank white page and in the top left corner it just says:

      “400 Bad request
      Your browser sent an invalid request.”

  3. oreadlaura says:

    Thanks… this worked for me.

  4. FIKA says:

    Excellent, you solved my problem, thank you.

    • Glad you were able to solve your issue by following the instructions. Please re-share the article on social media so more ppl who have the same issue can also find the solution. Thanks

  5. marc says:

    thanks for posting. Great article.

  6. I have fun with, lead to I discovered exactly what I was looking for. You’ve ended my 4 day long hunt! God Bless you man. Have a great day. Bye

  7. Pamela Rose says:

    Did not work for me for Firefox, which seems to be the only browser giving this error. Just started seeing the error today. My site is http://christianeveryday.com. Would love to know if you have any other ideas. Noticing I get the ’400 bad request’ error about every two times I load a page. Also on the time that it loads not everything is loading.

    • Hello Pamel Rose, if the solutions above did not work. Another possible solution and suggestion would be to flush out your DNS cache by doing the following:

      Open the command prompt, and type “ipconfig /flushdns” then press enter

      It should give you the following message:
      “Successfully flushed the DNS Resolver Cache.”

      • Arek says:

        That issue can be caused by corrupted cookies.
        Clear the cache and the cookies from sites that cause problems.
        “Clear the Cache”:
        Tools > Options > Advanced > Network > Offline Storage (Cache): “Clear Now”
        “Remove Cookies” from sites causing problems:
        Tools > Options > Privacy > Cookies: “Show Cookies”.

        It works for me because I had the same problem with my Firefox and deleting cookies does not fixed “Error 400″. By the way – nice site Pamela : ) Greetings Timour.

  8. Pamela Rose says:

    Well strike that … I am getting the error in IE now too

  9. VIKRAM says:

    tanx it realy very use ful for me tanx

  10. Thanks!!!! Спасибо!

  11. Media_nana says:

    thank you very much worked great for me too

  12. Ismael says:

    Thaaaaaaaaaaaaank you !!!!!!!!!!!!!!

  13. Samantha says:

    I get this error code on my phone’s browser. I’ve tried deleting all the cookies, cache, history, everything. It seems as though I only get the error code when the website begins with https:// rather than http://. Any suggestions?

  14. Sarah says:

    I have to run a PC test for a work from home company called Convergysworkathome.com the link they include starts up a Java based test to check to see if my Computer is up to snuff (it so totally is) when I go to run the test I get the Bad request message. I have tried different browsers, all the advice you put in this thread, checking to make sure java is up to date, etc. All to no avail. I even emailed them to ask for help but they basically tell me to make sure I have Java (no duh) Please advise if you can.

  15. Hildebrandt says:

    Thanks to helpful fellows humans like you, normal people like me how can use a computer but do not know how to deal with such problems receive valuable help. Thank you so much!!!

  16. Àlex Luque says:

    It worked for me! Thank you!

  17. Claire Whiffen says:

    Awe magic, been trying to fix this for 2 days, thanks your a star!

  18. Fix it its saying 400 bad I can’t fix it

  19. Mark Jansen says:

    I followed all steps but it didnt work;
    TP/1.1 58520741 Content-Length: 89 Content-Type: text/html
    400 Bad Request

  20. Mark Jansen says:

    TP/1.1 58520741 Content-Length: 89 Content-Type: text/html
    400 Bad Request

    I followed all steps but still doesn’t work

  21. When I don’t delete cookies I receive this :

    Bad Request – Invalid Verb
    HTTP Error 400. The request verb is invalid.

    And when I delete cookies I first receive an empty page of that website and in second refreshing the page I receive that error message again .

    But website comes up on other computers .

    Ohhhhhhhhhhh .. Damn it … this is my own website …

  22. LP says:

    Worked like a charm. Thank you!

  23. Mahender says:

    Hey Rahsed!

    It didn’t work for me initially with just above procedure but when I cleared cache after doing the above, it worked. Thank you anyway!

    Cheers!

  24. Nisa says:

    Worked for me! Thank you so much!!!

  25. Tikkou says:

    ok for me thanks

  26. how to play piano says:

    I am actually grateful to the holder of this website who has
    shared this impressive post at at this time.

  27. Santho says:

    Its works fine with chrome… thanks

  28. ofer says:

    Thank you it really helped!

  29. Sanne says:

    Worked like a charm, thanks!

  30. HollyHill says:

    Worked for me and it only took a couple of minutes!

    Thank you!

  31. Joe says:

    Hi, I was trying to visit esrb.org and this error came up. I’ve removed the cookies, but it’s not working.

  32. marianna says:

    thank you, thank you, thank you!!!!!

  33. Piterk says:

    I tried to follow instruction for Google Chrome. Apparently, there is no cookies connected to page which doesn’t work. I checked twice, by clicking on the small sheet to the left of web address. There are none – neither cookies to allow nor to block. Can you help me?

  34. Augusto says:

    Congratulations. It’s a good information!

    I’m from Brazil and like your site.

  35. Pingback: “400 Bad Request” en Chrome « SCyASIG

  36. Des says:

    Thanks – worked a treat. Only problem was that this weird-ass box that comes up on the left of your page inviting me into social media sites – it covers half the text (in Chrome).

  37. Charles says:

    Just ran into this problem. This worked for me.

    Thanks!!

  38. Marc Mallary says:

    Thanks so much, it worked perfectly.

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