Errors in HTML: What They Mean and How to Fix Them


When something goes wrong when you try to access a website or your inbox, why do you always get a random number instead of a natural explanation? But numbers are commonplace, and diagnosing your computer’s issue usually necessitates delving deeper than we’d like. It’s interesting to see that numerous errors share common root causes or, at the very least, remedies.

Error 400

You can believe a message like “400:Bad Request” or “HTTP Error 400 – Bad Request” when you see them. There was a problem with your request. When you type a URL into your browser, you tell your computer to fetch the requested document from a remote server. If there is a problem with the URL you entered, the page will not load, and an error will be displayed.

A typo could cause error 400, but it could also mean that the page you are trying to access no longer exists, that the URL you copied was incorrect, or that it is missing mandatory parts. It’s also possible that the webpage has been revised.

Error 401

The error “401: Unauthorized” signifies that you are not the intended user of the website. Error 401 is a specific error code that indicates that the website’s security has blocked access to the page. Error 401 appears when you try to access a protected resource without entering your login and password. If you tried to log in, but the website’s server didn’t recognize you because you mistyped your username or password or some other strange circumstance, you would see Error 401.

Error 403

You are a mischievous rascal! Error 403 indicates that you tried to enter a strictly off-limits website section. No matter what the webmaster is trying to conceal behind that dead-end URL, you won’t be able to access any other pages at that address. Not now, at least.

Even if you made no malicious changes to the URL or attempted to visit the site at an inappropriate hour, you may have seen Error 403. Unless you were trying to hide your true intentions, this slip-up does not indicate malice on your part.

Error 404

Many messages may appear when encountering Error 404, but they will always read “Error 404: Page Not Found” or a similar phrase. When you attempt to load a page that does not exist on the server, you will see the Error 404 message.

While it’s true that some Error 404 notifications are the result of user error, the vast majority are not. There’s little you can do if a website’s pages are down or if you were trying to access a page the owner has since removed or altered.

Error 408

The 408 error is one of the worst kinds of online roadblocks. Enter the URL or select the link to go there. You sit and wait. You sit and wait. When you type in the URL for a website and hit enter, the error page is shown instead. Here you see Error 408, which means you “Timed Out.”

If you try to access a website that doesn’t load quickly enough, the server will eventually give up and close the connection. The error is thrown instead of the requested website. A fast reboot can help, but sometimes you must make significant changes. Click the circular arrow to the right of the address bar to refresh your browser.


While an extensive range of numbers may be associated with the internet above issues, many will share common causes and fixes. When you are having trouble accessing a specific website, you may need to employ a “drill down” approach to finding a solution.

Verify Your Online Connection

Open a search engine and type in a few utterly unrelated search terms to ensure you have full web access. You can rule out malfunctioning internet if your search returns results, and you can access the linked websites. You should try resetting your router and restarting your computer if you didn’t reach any new websites.

Look for blatant errors.

Check for typos in your address; lengthy URLs are especially tricky to input accurately. Ignoring that one letter or dot won’t get very far. Make sure Caps Lock is not used, mainly when dealing with Error 403, where credentials are encrypted. The Number Lock setting should also be double-checked. If you make a genuine error, fix it and try again. The answer could be as easy as that.

Start your machine back up.

Even if it’s the internet and not your computer causing the problem, restarting the machine never hurts. It’s possible that restarting your computer can update the necessary software or reset the connection to the router, allowing you to access the internet more quickly and efficiently. It’s a quick and straightforward solution to a potential problem.

Refresh your web browser.

Ensure your browser is up to date if you’re experiencing internet issues and seeing new problems crop up frequently. While it’s likely that your browser will update itself whenever a new version is released, if you’ve put off upgrading or missed an update, you may check for and install it manually by visiting Windows Update for Internet Explorer or the Tools menu in Firefox or Chrome.

Fix the add-ons.

Verify that any frequently used plugins are also up to date with the rest of your browser installation. ActiveX and Flash are two examples of popular plug-ins for websites. Websites may prompt users to update plug-ins automatically, or users may manually update plug-ins by visiting malicious websites and installing malicious programs. To help pinpoint the source of the issue, Firefox provides a plug-in check page.

To be updated.

Last, you may always give up and leave if all else fails. But please do return at a later time. The website may be experiencing technical difficulties of its own, and all you need to do to fix the problem is wait five minutes.

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