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 Tumblr is down or not.
If our test shows that Tumblr is up, but you still can't access it, follow these tips.
If our tool shows that Tumblr is down, then you can not do much to solve it. Just wait for Tumblr to solve the issue.