what is 302 redirect:

302 is http response code to perform a url redirection. where 302 is trying to reach specific url location.some time browser chnge request type to new request and generate new status code 303 and 307
 
Many webmasters would like to know more about the difference between a 301 and 302 redirect. To a user they seem to work the same way, but they aren’t the same as far as search engines are concerned. Search engines sense the different types of redirects, and handle them differently. A 301 redirect means that the page has permanently moved to a new location. A 302 redirect means that the move is only temporary. Search engines need to figure out whether to keep the old page, or replace it with the one found at the new location. If the wrong type of redirect has been set up, search engines may become confused, resulting in a loss of traffic.

Why does this matter? If you are moving a web page or an entire web site to a new location, for instance if you change your domain name, you want visitors to be able to find your site. A redirect causes the user’s browser to automatically forward from the old location to the new one. You might think that Google and the other search engines would just follow the redirects, but that’s where things get complicated. When a site moves, that can trigger the Google aging delay. Usually the site drops out of the search rankings for several months, sometimes even a year. We’ll come back to this later.
There aren’t too many situations where a 302 is appropriate. How often have you temporarily moved a page? It’s much more common to move pages permanently. Nevertheless, it seems easier to create 302 redirects than 301s. You can use Javascript or a meta tag to create a 302. Creating a 301 redirect requires special commands in your .htaccess file if you use an Apache server. With Windows servers, creating 301 takes even more time and trouble. That’s why there’s a tendency for people to mistakenly use 302 instead of 301.

Google recognizes that many people use 302 when they really mean 301. Fortunately, Google isn’t bound by any law to take people literally. For the sake of producing the best possible search results, Google can and should look at 302s and figure out if the webmaster really means 302, or if it’s run-of-the-mill confusion and they really mean 301.

Whether Google actually handles 302s properly is an open question. If a 302 is used instead of a 301, search engines might continue to index the old URL, and disregard the new one as a duplicate. Link popularity might be divided between the two urls, hurting search rankings. Search engines might figure out how to handle the 302, or they might not. Google spokespeople have said that they will treat a 302 as a 301 if they think the webmaster has made an error, but why take a chance, and what about other search engines?

When permanently moving a web site, or a web page, best practice is to use a 301 redirect. 302s in this situation seem incorrect. By saying “temporary move” a 302 tells search engines to keep the old domain or page indexed, but it would be desirable for them to index the new location. In the past people have used 302 redirects in an effort to circumvent the Google aging delay. This workaround might have worked at some point, but it is not a current best practice.

If concerned about losing rankings due to a 301, the solution is not to change a domain, and not to become financially reliant on rankings. In the real world, businesses avoid changing their names because it can appear shady. Who can blame Google for employing the same logic: if you’re changing domain names, you might be up to no good. Let’s wait a while and see if you behave yourself before we recommend you.
 
302 is http response code to perform a url redirection. where 302 is trying to reach specific url location.some time browser chnge request type to new request and generate new status code 303 and 307
 
JamieD1234 said:
Many webmasters would like to know more about the difference between a 301 and 302 redirect. To a user they seem to work the same way, but they aren’t the same as far as search engines are concerned. Search engines sense the different types of redirects, and handle them differently. A 301 redirect means that the page has permanently moved to a new location. A 302 redirect means that the move is only temporary. Search engines need to figure out whether to keep the old page, or replace it with the one found at the new location. If the wrong type of redirect has been set up, search engines may become confused, resulting in a loss of traffic.

Why does this matter? If you are moving a web page or an entire web site to a new location, for instance if you change your domain name, you want visitors to be able to find your site. A redirect causes the user’s browser to automatically forward from the old location to the new one. You might think that Google and the other search engines would just follow the redirects, but that’s where things get complicated. When a site moves, that can trigger the Google aging delay. Usually the site drops out of the search rankings for several months, sometimes even a year. We’ll come back to this later.
There aren’t too many situations where a 302 is appropriate. How often have you temporarily moved a page? It’s much more common to move pages permanently. Nevertheless, it seems easier to create 302 redirects than 301s. You can use Javascript or a meta tag to create a 302. Creating a 301 redirect requires special commands in your .htaccess file if you use an Apache server. With Windows servers, creating 301 takes even more time and trouble. That’s why there’s a tendency for people to mistakenly use 302 instead of 301.

Google recognizes that many people use 302 when they really mean 301. Fortunately, Google isn’t bound by any law to take people literally. For the sake of producing the best possible search results, Google can and should look at 302s and figure out if the webmaster really means 302, or if it’s run-of-the-mill confusion and they really mean 301.

Whether Google actually handles 302s properly is an open question. If a 302 is used instead of a 301, search engines might continue to index the old URL, and disregard the new one as a duplicate. Link popularity might be divided between the two urls, hurting search rankings. Search engines might figure out how to handle the 302, or they might not. Google spokespeople have said that they will treat a 302 as a 301 if they think the webmaster has made an error, but why take a chance, and what about other search engines?

When permanently moving a web site, or a web page, best practice is to use a 301 redirect. 302s in this situation seem incorrect. By saying “temporary move” a 302 tells search engines to keep the old domain or page indexed, but it would be desirable for them to index the new location. In the past people have used 302 redirects in an effort to circumvent the Google aging delay. This workaround might have worked at some point, but it is not a current best practice.

If concerned about losing rankings due to a 301, the solution is not to change a domain, and not to become financially reliant on rankings. In the real world, businesses avoid changing their names because it can appear shady. Who can blame Google for employing the same logic: if you’re changing domain names, you might be up to no good. Let’s wait a while and see if you behave yourself before we recommend you.
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Thanks for sharing
 
A 302 redirect is also known as a Temporary Redirect. 302 is used when you want to redirect your site visitors into another webpage but you plan to bring the redirected page back after some time. Knowing this, the 302 redirect will not pass on all qualities of the redirected page to the new page.
 
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