What is HTTP Status Codes?

Photo of author

By Vijay Singh Khatri

HTTP status codes are essentially small host remarks that are placed onto a website page. They are not part of the website. Rather, they are response status sent out by the server for informing you about what happened when it got the request from your browser to see a particular webpage.

Even if you do not see any HTTP response status code directly on your browser, they are delivered whenever you browse and communicate with a network. Knowing HTTP status codes is crucial if you are a website owner or programmer. HTTP status codes are vital for finding and correcting problems with a website or your network.

What is HTTP Status Code?

These status codes represent a dialogue between your browser and the server over the Internet. They convey if things are fine, touch-and-go, or if something is wrong between them. Understanding status codes and how to utilize them can assist you in rapidly diagnosing site issues and reducing downtime. Your browser requests the server for the domain you’re attempting to access each time you switch on an URL or put in a URL and hit Enter key. The server receives the request, processes it, and then delivers the requested resources together with an HTTP header back to the client.

In the HTTP header, your browser receives HTTP status codes. Even though status codes are issued every moment your search engine requests a web page or service, you seldom see them.

It’s typically only when any problem occurs that you’ll notice one in your browser. “Something isn’t quite right”, the server expresses. Here’s a code that describes what happened, i.e., 404

Important SEO Codes

Understanding the status codes that have the most influence on SEO is critical for every competent SEO and page operator.

Suppose you’re functioning on a site that’s generating a lot of 5xx errors; you’ll want to know right away if it’s a network problem. Because 4xx errors have an impact on visitor experience, you should immediately consider any modifications you’ve performed to your URLs, as well as whether you’ve removed any pages.

Once you’ve figured out what’s causing the problem, you can either create a custom 404 page or utilize an all-Html tag to guide users to the correct location.

While scanning your site, search engine crawlers look for HTTP status codes. These signals may have an impact on whether and how your pages are indexed, as well as how search engines view your site’s health.

In particular, HTTP status codes of 100 and 200 don’t have much of an influence on your SEO. They let Google and other search engines know that everything on your site is functioning properly and that they may proceed on their way. They won’t, however, help you improve your ranks.

Why are HTTP Codes Important for SEO?

For even the most part, higher-level codes are important when it comes to SEO. Bots won’t be able to crawl and analyze your sites if you use 400- and 500-level answers. If you have a lot of these mistakes, it may signal that your site isn’t very good, and your rankings may suffer as a result.

The link between SEO and 300-level codes is a little more difficult. The distinction between regular and temporal redirects, which we’ll discuss in more detail in the appropriate section beneath, is the most important factor to comprehend their influence.

Long redirects, on the other hand, share link ownership from referrals, but short redirects do not. To put it another way, when you utilize temporary redirects for pages that have relocated, you lose the SEO benefit of all your link-building efforts.

Prevalent HTTP Status Codes

Status Code 100

A 100-level status code indicates that the server’s response to your inquiry is still being processed for whatever reason. It isn’t always an issue; it’s just additional information to keep you informed.

Status Code 200

It is your preferred status code for a typical, well-functioning web page. Users, computers, and hyperlink ownership all glide effortlessly between linked pages. You do not have to do anything and could go about your day confident in knowing that it is all as it ought to be.

Status Code 202

The 202 accepted status code indicates that the system has acknowledged and approved a request for execution, but the operation has not yet been finished.

So, it does not guarantee that the application will be approved in the end, as this is dependent on when the final processing begins. This is a popular suggestion in APIs when a batch operation is executed once every day.

Because HTTP cannot interact after a transaction has completed or a person’s session has already ended, an API may send emails to customers informing them that perhaps the procedure has been completed.

Status Code 206

If your HTTP client supports range headers you may receive this status code. This allows you to restart stalled downloads and divide a download into numerous channels in your browser.

When a stretch signal leads the server to deliver just part of the requested data, a 206 code is returned.

206 Partial Content status code can be used for several requests and often indicates that a partial request for a resource has been fulfilled by the server.

For instance, if a client is just interested in a subset, or range, of a given resource or page. Another use for a 206-status code is video. A client may only load a video in parts so that the user doesn’t want to wait for the media to buffer or download, hence avoiding a terrible experience for users in which the user must wait much longer than before video works.

To reduce cost and clear delay difficulties, this is the standard best practice amongst HTTP media players.


In situations of URL redirection, the 3xx status codes are used. Pages have always been developing and growing, so managers may also need to drive consumers to an improved or alternative webpage on occasion.

Redirects save the person from accessing to hunt for what they’re looking for while also keeping your rating in search results. The reroute steps may be performed automatically by the browsers or may need further user intervention.

The 3xx HTTP status codes are critical for SEO and user interface since they notify browsers what information to scan and retrieve.

Status Code 300

In some cases, the server may be able to respond with several resources to complete your browser’s query. When your browser receives a 300-status code, it must now select amongst them.

This can happen if the server is suffering word sense confusion or if there are numerous data type expansions accessible.

Status Code 301

When one URL has to be completely transferred to the next, a 301 redirect should be used. Users and bots who come on that site will be sent to the new URL through a 301 redirection.

Via a 301 redirect, link equity — the potency communicated by all those hard-won referrals to your content — is likewise transferred to the new URL. Despite Google’s claims that all 3xx redirects are processed identically, studies have revealed that this is not the case.

For durable page redirection, a 301 redirect is still the preferable technique.

Status Code 302

A 302 redirect is identical to a 301 redirect in that it directs users and computers to the blog section, but link authority is not transferred. For major modifications, we do not suggest utilizing 302 redirects.

Search engine users will regard 302 codes as provisional redirects, which means they may not send along with the link value that the mystical 301 does.

When a resource’s URL is temporarily altered, use 302 redirects. Although some Google workers have stated that 301s and 302s may be regarded identically in some instances, our data shows that using a 301 when securely redirecting URLs is the safest approach to assure that search engines and browsers of all sorts give full credit. That’s because, while both 302s and 301s can theoretically convey the appropriate proportion of link ownership to Google, there are times when a 301 may send a greater canonicalization signal.

In instances when the redirect is transitory, a 302 could be the best option.


4xx HTTP status codes are not something you wish your consumers to see here in the categorization with one of the most HTTP status codes. Any status code that starts with a 4 indicates a problem with the client.

4xx status codes are typically issued when a site is removed and not sent, or whenever something is typed improperly inside a URL or link. If users receive the feared 4xx status code, it indicates there’s an issue with the customer getting data from the server.

These are mistakes that consumers will notice appear on the computer and produce terrible usability, resulting in irritation as well as a desire to go elsewhere.

Status Code 404

This indicates that the server was unable to locate the file or page requested by the browser. The presence of a 404 error does not indicate whether a page or resource is permanently unavailable or simply temporarily unavailable.

By entering a URL that doesn’t exist, you can preview what this looks like on your site. It’s as though you’ve hit the limit. Your clients will reach a page with a 404 error, as you have, and then either search repeatedly just go to another webpage that gives detailed data they’re looking for.

Some pages on every website will return 404 status codes. There are more methods available besides redirecting these pages. One frequent misunderstanding is that 301 redirecting pages that generate a 404-status code to the database’s website is an SEO best practice. In the vast majority of situations, this is a terrible idea since it can confuse visitors who don’t understand that the webpage they’re attempting to reach doesn’t exist.

If the 404 sites are greater sites with a lot of activity or have a clear URL that users or hyperlinks are supposed to go to, you should be using 301 redirects to the most applicable page feasible. If your website on branded shoes, for example, is no longer available, you may wish to use a 301 redirect to point to your best available shoe category page.

Outside of these circumstances, it may be essential for a URL to return a 404 on purpose to avoid being processed and examined frequently by search engines. With a personalized 404 page, you can provide your visitors the greatest quality care.

Status Code 410

A 410 indicates that the page has been removed, as opposed to a 404. The page has been removed from the system, and no successor URL has been established. Any backlinks on your website that lead to a 410 page are directing bots and people to a broken page. Therefore, delete any mentions or references to them from your website if you find them.

Status Code 500

This status code indicates a server fault rather than a problem with pages missing or not found. A 500 error is a common server issue that will prevent visitors from accessing your website.

Both people and bot users would be lost, and your link value will quickly deteriorate. Because search engines like well-maintained sites, you should analyze these status codes and correct them as quickly as possible.

“The server encountered an issue, and the request could not be completed.” This is just generic code for “internal server problem”. The intended resource was not provided because something wrong happens on the server.

Third-party plugins, poor PHP, or even a broken server application are common causes of this code. Check out our other articles on how to handle a 500 internal server problem and how to remedy the error creating a database server.

Status Code 503

A 503 response, which is a variant of the 500, indicates that the server is unavailable. Everyone, human and non-human, is requested to return at a later time.

This might be due to the server being momentarily overloaded or due to server maintenance. A 503-status code tells web pages that the page or site will be back up shortly since it will only be unavailable for a brief period.


While HTTP status codes may appear to be complex or worrisome at first glance, they are very helpful. You can address issues on your website more efficiently if you understand the meaning of some of the most prevalent HTTP status codes.

Leave a Comment