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Maintaining a website is important to maximizing your business potential. It’s how customers find you, learn about you, and transact with you. Without it, it could be challenging for you to break into a competitive market. One great way to ensure your business’s lasting impact is to make sure that your site is user-friendly and error-free.
Here’s the continuation of common website errors and the steps you can take to fix them.
This is one of the most common error messages users will encounter on the internet. It is a catch-all response to indicate an internal problem encountered by a web server, preventing it from fulfilling a request.
What Causes It:
When you get this error, it means something went wrong with the server, but it’s unsure what it is. Usually, it is caused when the server is overloaded. However, it can also be caused by a number of things, such as uploading the incorrect file, a bug in a piece of code, incorrect web server configuration, or conflict or restriction when carrying out a request.
How to Fix It:
To resolve this issue, administrators must first locate and analyze the error log to see the reasons for the site failure. Other ways to get around the problem include:
If the error is caused by incorrect permissions on a folder or file containing one of the scripts, check to see what the permissions should be and ensure that they are set on the server accordingly.
If the reason is that the server timed out or the script you’re running timed out, increase the Apache server timeout in httpd.conf by changing Timeout 600.
If it’s the script that’s causing the problem, change the max execution time to something longer. If you’re using PHP, change the max_execution_time from the default 30 (seconds) to max_execution_time 60.
Sometimes, it stems from an error in the coding of an .htaccess file, which interferes with the webpage you’re trying to load. Double check the .htaccess configuration for a possible syntax error. To confirm whether a misconfigured .htaccess is the reason for the 500 Internal Server error, remove or rename the .htaccess file temporarily and then try to reload the page.
If you are a website visitor and want to make sure that the problem isn’t on your end, clear your browser cookies and cache. It might be that you are viewing the wrong version of the site after a few recent changes have been made.
Often, the issue is only temporary. You happened to visit the site at exactly the wrong time when a service restarts, so all need is to refresh or reload the page.
To load a page in a web browser, you first need to input the URL, and then a request is made to the webserver to retrieve the content. After receiving the request the server understands it and returns with the corresponding result.
If the error message starts with a 5, it means the error is on the server-side. In the case of 501 Not Implemented, it indicates that the webserver does not support the functionality required to fulfil the request and does not recognize the request method. Other forms of messaging that can be displayed on the web browser are:
What Causes It:
There are several reasons in which the message may appear, including:
Viruses and malware can prevent the browser from establishing communication with the webserver. While this situation can cause Error 501 to be displayed as a request return, the real root of this problem is not on the server but the infected computer.
An increase in traffic can overload the server, slow down communication, and cause the request to fail. This problem is common during promotions and among online stores because of the large number of visits to a page.
While this is rare, an expired or out-of-date server software or environment triggering the error is a possibility.
Any software updates or changes in settings executed improperly can also cause server errors and communication failures.
How to Fix It:
Usually, you may have to contact the server hosting service to have this error resolved. Despite it being a server error, it is still important to check your site and local computer settings before making the call.
Keep your antivirus up to date and perform a complete scan of the system to ensure that no security threats are causing the communication failure.
The error may have been caused by a brief drop in communication with the server. Trying to reload the page is a valid option to see if the internet has resolved itself after a few minutes.
Clear the cache so all files are updated. Every time you load a page, several files are stored on the computer, but not all of these files are reloaded when you make a new request. If the server had undergone any changes, some of these files will be out of date. The difference among files can cause communication failure with the server.
If your browser is using a proxy server, this can make it accessing a page difficult. Check whether your browser has it enabled and if it is, disable it.
The 502 error means that the server received an invalid response from an inbound server. The Internet Engineering Task Force defines it as, a “status code indicates that the server, while acting as a gateway or proxy, received an invalid response from an inbound server it accessed while attempting to fulfill the request.”
Variations of this error message include:
What Causes It:
There are several possibilities why the 502 error message appears. It could be that the server is overloaded, or there are network issues between two servers, which are just temporary problems. It could also stem from an improperly configured firewall or a coding error.
How to Fix It:
It’s worth taking a shot to reload the browser a couple of times. It could simply be because the host or server is overloaded at the moment, which is causing the issue. You can also try checking if the site is down for other people. Tools like isitdownrightnow.com or downforeveryoneorjustme.com help you see if others are having the same trouble.
Your browser may have cached outdated or corrupt files, causing the 502 error. Remove these cached files and then try opening the website may solve the problem.
If you have a couple of extensions on your browser, disable all extensions and then access the website. If the error disappeared, it is most likely that one or more plugins are causing the issue. Enable the plugins one by one to find the culprit.
A browser issue may also be the reason. One easy way is to see a different browser to see if it works just fine. If the error occurs in the new browser as well, then you can try the next steps.
If you have eliminated the site and browser issue, it could be your computer or networking equipment (WIFI, router, modem, etc.) that is triggering the error. A simple restart of your devices might help.
DNS problems can also cause 502 errors. DNS servers are usually set up by an internet service provider. You can change them to a third-party DNS server like OpenDNS or Google DNS, and that might fix the problem. Changing DNS servers can also improve speed and reliability.
The 503 error message means that the server is temporarily unable to handle the request. Unlike the 500 Internet Server error, this issue indicates that the server is still functioning properly and still able to process the request, but is simply unavailable right now.
You might see the error as:
What Causes It:
It is difficult to pinpoint exactly the reason for the 503 issue, although it commonly occurs when the server is overloaded or down for maintenance.
How to Fix It:
The most common resolutions for 503 Service Unavailable are:
Congestion happens in the server chain that is hosting your website. To fix and refresh it, simply restart the webserver. If your website is hosted on multiple servers, ensure you have restarted all of them to get it up and running again.
Webservers are normally down when undergoing maintenance. If you have access to your server’s administration settings, check the configuration option and see the schedule of maintenance sessions. If you have complete control over your server’s maintenance, you can also disable automatic updates. Many content management systems will automatically install updates to their base software, issuing the 503 Service Unavailable error.
The firewall is meant to protect your site from malicious users and distributed denial-of-service (DDoS) attacks. But, improper firewall configuration can cause the firewall to consider requests as an attack and reject them, resulting in an error.
Server-side logs can be two things – application logs and server logs. Application logs list your website’s history, which pages were requested by visitors, and the servers it connected to. Server logs contain information about the health and status of the hardware running your server. A thorough examination of both server-side logs may help you uncover any unusual information about your server or website.
A mistake in your code can affect the webserver’s ability to correctly respond to requests. Combing through your codes to find bugs can help you diagnose the error and see the exact moment things went wrong.
This error means that a server attempting to load a page failed to get a timely response from another server. Unlike the 408 Request Timeout error, which is a direct message from the active server itself unable to process the request within a given time, 504 Gateway Timeout error is returned when the server, while acting as a gateway or proxy, did not get a timely response from an upstream server to complete the request. To put it simply, the 2 web servers involved in processing a request are not communicating with each other fast enough.
You might see the error message in different ways, including:
What Causes It:
The error can occur when the other server is not functioning properly, overloaded, or down.
How to Fix It:
The issue may be a temporary one, and refreshing the page is worth the shot. If the problem persists, you can also try to check if the site is down for other people using tools like isitdownrightnow.com and downforeveryoneorjustme.com.
If the site is just down for you, there could be temporary issues with your computer and your networking equipment. A simple restart may do the trick.
A proxy server works between your device and the internet, mostly used to hide private information from websites and webservers. While it is rare for a proxy server to cause the 504 error, incorrect proxy server settings can still cause the problem. Try disabling the proxy server and then reload the page to see if it fixes the issue.
DNS issues on the server-side or the client-side (or both) can also cause the 504 Gateway Timeout error. This is most likely to occur if you have recently changed host servers or moved your website to a different IP address. It is crucial to wait for the domain’s DNS records to propagate completely, which can take up to 24 hours.
One of the most common causes of a 504 error is server issues. High-traffic and e-commerce websites are susceptible to this error because of server overload. You can consider contacting your hosting company to check how you can properly resolve this issue.
Errors and status codes are there to help you determine what might have gone wrong. Although they may be frustrating, understanding each error can help you work towards a better website and point you in a generally better business position.
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