I knew the job was dangerous when I took it ...
- Jul 19, 2004
- Out of Bounds
... (What I mean is, would they possibly point to a different site - perhaps the one you're finding that says 'closed' was a previous incarnation of her site and she since (when you read her stuff in 2015) was on a different site? Is that possible? ...
As of 2015 (when Ulalume initially visited and signed on as a subscriber), the original (and almost certainly 'wide-open'; unsecured) Kendra site had already been closed for up to 4 years.
When Ulalume recently went looking for the site she'd seen and subscribed to, she relied on the Wayback Machine (archive.org).
The WM can't archive anything to which its bots and crawlers are denied access. Kendra's implementation of subscribers and limited access imposed a firewall of sorts. The WM can't crawl and store stuff that's out of sight behind firewalls unless the firewall implementation specifically accords archive.org crawlers access to do so.
I'd bet the 2011 closure notice was the only thing Kendra left outside the firewall. This made it the only thing the WM could access and store from the entire Kendra site for years thereafter.
The later (secured; firewalled) Kendra site Ulalume knew hadn't disappeared from the WM - it was never archived there in the first place.