Response status codes indicate whether a specific HTTP request has been completed. Here are the types of response codes.
With these response codes, we decide if Mangadex is down or not.
If our test shows that Mangadex is up, but you still can't access it, follow these tips.
If our tool shows that Mangadex is down, then you can not do much to solve it. Just wait for Mangadex to solve the issue.