mjswanusercontent.com
You have probably arrived here from a URL, a server log, or a network filter.
What this domain is
It belongs to mjswan Cloud, a site for sharing physics and engineering simulations. This domain serves the parts that handle content uploaded by other people: the simulation data files themselves, and the player that reads them and draws the result.
Why it is a separate domain
Browsers draw their security boundaries around domains. Keeping uploaded content
on a domain of its own means that nothing served from here can read the cookies,
the stored data, or the signed-in session that belong to mjswan.com
— even if a file turned out to be malicious, and even if the software reading it
turned out to have a bug.
Splitting the two is the whole reason this domain exists. It is the same pattern
behind googleusercontent.com and
githubusercontent.com.
What is never here
No accounts, no sign-in, no sessions. There is nothing to log into on this domain and there never will be — the pages served here cannot submit a form at all.
So if any page on mjswanusercontent.com ever asks you for a
password, a verification code, or payment details, it did not come from us.
Do not enter anything, and please tell us at
mjswan.com.