Google Error 400 (Bad Request) Your Client Has Issued A Malformed Or Illegal Request


When a trang web fails lớn load, it’s simply annoying. It’s important khổng lồ understand, though, why that happened so you know how to fix it.Bạn đang xem: Google error 400 (bad request) your client has issued a malformed or illegal request

400 bad request error in Chrome

But what about the other browsers?

400 Bad Request in Firefox


Clear browsing data options

If you’re using an alternative browser, kiểm tra this guide for clearing the browser cache for all the major browsers (Mozilla Firefox, Safari, internet Explorer, Microsoft Edge, Opera).

Bạn đang xem: Google error 400 (bad request) your client has issued a malformed or illegal request

Unsure what’s causing your site’s 400 Bad Request? Our team of WordPress experts can help. Try for Free.

3. Clear Browser Cookies

If clearing your browser cache didn’t work, then it’s time khổng lồ delete the cookies too. A single trang web can use dozens of different cookies. If just one of them is expired or becomes corrupted, then it can be enough khổng lồ trigger a 400 Bad Request.

To clear your cookies in Chrome, mở cửa up the Clear browsing data window by clicking the icon with the three dots in the top-right corner and select More Tools > Clear Browsing Data from the popup menu.

Make sure the Cookies và other site data is checked and select All time for the date range option khổng lồ delete all current trang web cookies.


Clear browsing data options (cookies)

Once done, try loading the trang web which returned the 400 Bad Request error again. Assuming the site uses cookies, clearing them out from your browser could fix the issue as it’s often associated with corrupt or expired cookies.

4. Tệp tin Upload Exceeds server Limit

If you’re trying khổng lồ upload a file to a trang web that’s exceeding the hệ thống file kích thước limit, you’ll encounter a 400 Bad Request error.

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You can chạy thử this out by uploading a smaller tệp tin first. If this is successful then the initial file is probably too large và you’ll need khổng lồ find some way to lớn reduce it before uploading it again.

This will depend on the type of file you’re trying to upload but there are plenty of resources available online that can help to compress large images, video, and audio files.

5. Clear DNS Cache

Another common cause of a 400 Bad Request is when local DNS lookup data becomes either corrupted or out-of-date.

Local DNS data isn’t stored by the browser but by the operating system itself. We have put together a detailed guide lớn clear the DNS cache for Windows and macOS operating systems.

6. Deactivate Browser Extensions

If you have browser extensions installed that affect trang web cookies then these could actually be the culprit here. Try temporarily disabling them lớn see if it makes a difference before trying to lớn connect to the trang web again.

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You may not have considered this could be an issue, but it’s certainly worth a try if you’ve exhausted all other options.

Experiencing a 400 Bad Request error? check out our detailed guide on how lớn fix it once & for all! ❌
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