<p>This site's <code>404 not found</code> image is not unique. It's shared with TeX SE.</p>

<p><a href="https://tex.stackexchange.com/404">https://tex.stackexchange.com/404</a><br>
<a href="https://stats.stackexchange.com/404">https://stats.stackexchange.com/404</a></p>

<p>It's entirely possible that this is intentional, but since most sites don't have the same image, I thought it was reasonable to suspect that it was a bug.</p>

<p>Sister bug report:<br>
<a href="https://tex.meta.stackexchange.com/questions/745/the-404-not-found-image-is-not-unique">on Meta TeX</a>  </p>
