HTTP

HTTP 302 Found vs 404 Not Found

HTTP 302 (Found) is a 3xx Redirection response, while 404 (Not Found) is a 4xx Client Error response. 302 indicates that the resource temporarily resides at a different URL. The client should continue using the original URL for future requests. In contrast, 404 means that the server cannot find the requested resource. The URL may be wrong, the resource may have been deleted, or it may never have existed.

Description

The resource temporarily resides at a different URL. The client should continue using the original URL for future requests.

When You See It

During A/B testing, temporary maintenance pages, or geo-based redirects.

How to Fix

Follow the Location header. Note: browsers may change POST to GET on redirect.

Description

The server cannot find the requested resource. The URL may be wrong, the resource may have been deleted, or it may never have existed.

When You See It

When a URL is mistyped, a page has been deleted, or an API endpoint doesn't exist.

How to Fix

Verify the URL is correct. Check for typos, case sensitivity, and trailing slashes.

Key Differences

1.

302 is a 3xx Redirection response, while 404 is a 4xx Client Error response.

2.

HTTP 302: The resource temporarily resides at a different URL. The client should continue using the original URL for future requests.

3.

HTTP 404: The server cannot find the requested resource. The URL may be wrong, the resource may have been deleted, or it may never have existed.

4.

You encounter 302 when during A/B testing, temporary maintenance pages, or geo-based redirects.

5.

You encounter 404 when when a URL is mistyped, a page has been deleted, or an API endpoint doesn't exist.

When to Use Which

For 302 (Found): Follow the Location header. Note: browsers may change POST to GET on redirect. For 404 (Not Found): Verify the URL is correct. Check for typos, case sensitivity, and trailing slashes.

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