I always saw your (relatively) new flair, but also see that [Web-Sniffer is giving different results](http://web-sniffer.net/?url=http%3A%2F%2Fstackexchange.com%2Fusers%2Fflair%2F205662.png). I don't think there's any CDN involved, as I think [the CDN uses specific domains](http://blog.stackoverflow.com/2011/05/the-speed-of-light-sucks/), like `cdn.sstatic.net`. And both my own computer and Web-Sniffer connect to `64.34.119.12`. 

So I guess there's some load balancer in the SE server farm, and that each server has its own cache? Flair is [known to be cached on the server](http://meta.stackexchange.com/questions/123036/why-is-the-icon-of-my-combined-flair-different-than-all-my-individual-flairs/123265#123265) for quite some time (and the server always tells the browser to cache for 86,400 seconds, being 1 day). Then the flair from the server to which the load balancer keeps sending you, simply was generated before Imgur and I happened to be sent to another server. And then the caches on the different servers also have different expiration dates.

More details:

Yesterday, [for me](https://i.sstatic.net/WhL4B.png), showing the same flair that you uploaded to Imgur:

    Content-Length: 7313
    Last-Modified: Wed, 16 May 2012 18:49:02 GMT

I seem to get the same results when logged in, and when using some private browsing mode, and also when using a different internet connection (different IP address). I am on IPv6, but the connection to Stack Exchange is using IPv4.

For Web-Sniffer, yesterday:

    Content-Length: 6862
    Last-Modified: Wed, 16 May 2012 17:07:41 GMT

That Web-Sniffer result is the same as someone reported in a comment, seeing the old flair.

Today, [I see](https://i.sstatic.net/HTYKM.png) you now have 8 silver and 45 bronze badges, and the Meta logo, and get:

    Content-Length: 7648
    Last-Modified: Thu, 17 May 2012 09:58:59 GMT

Web-Sniffer now reports:

    Content-Length: 7635
    Last-Modified: Thu, 17 May 2012 10:01:29 GMT	

For yesterday, Imgur gets me yet other data. I guess there the `Last-Modified` is just the upload date, so should be ignored. And as for `Content-Length`, they might even re-render the image too? If they are not re-rendering (today they have the same length as Web-Sniffer does) then there were at least 3 different image sizes yesterday, which could indicate at least 3 servers then? For your yesterday's image:

    Content-Length: 7287
    Last-Modified: Wed, 16 May 2012 18:44:34 GMT

Today, just making Imgur copy from http://stackexchange.com/users/flair/205662.png again, I get the same `Content-Length` as Web-Sniffer:

    Content-Length: 7635
    Last-Modified: Thu, 17 May 2012 10:36:51 GMT	

[That copy](https://i.sstatic.net/glZ7Y.png) also shows the new badges and the Meta logo, but given the Web-Sniffer headers, it was still generated a bit later. And with a slightly different size?