How to Fix a 502 Bad Gateway Error on Your WordPress Site?
When it comes to WordPress, there are several errors that may be really aggravating and confusing. A few that come to mind are the white screen of death or the frightening error establishing a database connection. The 502 bad gateway error, on the other side, is a lot more common. Why? Because this happens all the time on the web, not only on WordPress sites, but also on popular services like Gmail, Twitter, and Cloudflare. But, of course, the only thing important to us is how it impacts your WordPress site. Read more below about what causes this error and some solutions on how to quickly resolve it.
What is a 502 Bad Gateway Error?
The 502 Bad Gateway error indicates that an incoming server sent an invalid response to the server.
The 502 Bad Gateway error is defined by the Internet Engineering Task Force (IETF) as follows:
The 502 (Bad Gateway) 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.
Your browser makes a request to a web server every time you visit a website. The web server receives the request, processes it, and then delivers the requested resources, along with an HTTP header and an HTTP status code. An HTTP status code isn’t typically seen unless something goes wrong. It’s basically the server’s way of informing you that something has gone wrong and giving you the code to diagnose the problem.
500 status error codes come in a variety of formats (500, 501, 502, 503, 504, 508, 520, etc), within each set of meanings. These indicate that the request was accepted, but the server prevented the fulfillment of the request.
Variations of the 502 Bad Gateway Error
A 502 bad gateway error can appear in a variety of ways depending on the browser, web server, and operating system used. They all mean the same thing, though. Here are a few of the many different variants you could come across on the web:
- “502 Bad Gateway”
- “Error 502”
- “HTTP Error 502 – Bad Gateway”
- “502 Service Temporarily Overloaded”
- “502 Proxy Error”
- A blank white screen
- “502 Server Error: The server encountered a temporary error and could not complete your request”
- “HTTP 502”
- Temporary Error (502)
- 502. That’s an error
- 502 bad gateway Cloudflare
- Bad Gateway: The proxy server received an invalid response from an upstream server
And here’s another take on the theme. “502 – While acting as a gateway or proxy server, the webserver got an invalid response. The page you’re looking for can’t be displayed because there’s a problem with it. When the Web server contacted the upstream content server (while acting as a gateway or proxy), the content server returned an invalid response.”
For a 502 Bad Gateway error, other services, such as Twitter, may show a completely different message, such as “Twitter is over capacity.” This appears to be a bit more user-friendly.
Here’s an example of how Google displays it. “502. That’s a mistake. Your request could not be completed because the server experienced a temporary issue. Please come back in 30 seconds & try again. We don’t know anything.”
502 Errors Impact on SEO
A 502 error, unlike 503 errors, which are used for WordPress maintenance mode and tell Google to come again later, can have a negative impact on SEO if not fixed straight away. If your site is only down for 10 minutes and is crawled frequently, the crawler will just fetch the page from the cache. Or Google might not have a chance to better it before it goes down again. You’re perfectly fine in this situation.
If the site is down for a long time, say 6 hours or more, Google may view the 502 error as a site-level issue that has to be addressed. This may have an impact on your rankings. If you’re worried about repeating 502 errors, you should first figure out why they’re happening. Some of the ideas below may be helpful.
How to Fix the 502 Bad Gateway Error?
A 502 bad gateway error typically means a network/server issue, but it can also signal a client-side issue. So we’ll do a little bit of both. To get back up and running, look into these common causes and remedies for the 502 bad gateway error.
1. Try Reloading the Page
When you get a 502 bad gateway problem, one of the first things you should do is wait a minute or so and then reload the page (F5 or Ctrl + F5). It’s likely that the host or server is simply overloaded, in which case the site will return. While you’re waiting, you might try a different browser to see if that’s the issue.
Another option is to copy the Website and paste it into downforeveryoneorjustme.com. This website will tell you if the site is down or whether the problem is on your side.
2. Clear Your Browser Cache
It’s a good idea to clear your browser cache if you run into difficulties like this. The below are instructions for doing it in various browsers:
- Refresh a Single Page for All Browsers
- Clear Browser Cache for Google Chrome
- Clear Browser Cache for Mozilla Firefox
- Clear Browser Cache for Safari
- Clear Browser Cache for Internet Explorer
- Clear Browser Cache for Microsoft Edge
- Clear Browser Cache for Opera
3: Disable the CDN or Firewall
If your website uses a CDN service or a website firewall, it’s possible that their servers are missing. You’ll need to temporarily disable CDN to check this.
It will disable the extra layer that has been created between your browser and the hosting server once it has been removed. Your website will now load fully from your server, and any problems created by the CDN or firewall service will be fixed at this time.
You can then seek support from your CDN service provider. You can s new the CDN after the problem has been resolved.
4: Update WordPress Themes and Plugins
If the error persists, the next step is to look into your theme or plugins.
You must first disable all WordPress plugins via FTP. After that, verify to see if the problem has been resolved on your website.
If that’s the case, one of your plugins was to fault. You must now enable each plugin one by one until the error can be recreated. This will assist to identify the plugin that is causing the problem.
You can either look for another plugin or contact the plugin’s author for help.
If disabling plugins didn’t fix the problem, you could look into your WordPress theme. You’ll need to use phpMyAdmin to change your WordPress theme.
Visit your website after switching to the default WordPress theme to see whether it’s working. Continue reading if you’re still getting the error.
5: Check the Hosting Server
If all of the following troubleshooting steps fail, the problem is most likely with your hosting server.
You must contact your hosting provider’s support team to report the problem. You may also provide a list of all the troubleshooting steps you did.
If the problem is caused by a server misconfiguration, any good WordPress hosting company should be able to rapidly fix it.
Also Read:- What Is CDN? | How Do CDNs Work? Also Read:- #1 Best Hosting for WordPress Convesio From Hostguid Also Read:- What Is SSL Certificate? Also Read:- 6 Step How To Secure Your WordPress Website? Also Read:- How To Fix Your Website’s Insecure Content?
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