We had an incorrect url on our website set up to 301 redirect. We updated the redirects. All our internal machines now see the urls correctly.
New machines are all seeing the url correctly.
One of our clients is still reporting seeing the old link. We have instructed them to clear their cache. They are still seeing the old link.
They are going as far as to claim that new browsers installed on the machine (safari) is still seeing the old link.
Can the 301 redirect be cached anywhere machine wide that clearing the browser cache is not getting? Is there anything special IE needs to clear the 301 cache (outside normal cache clearing)?
I also know this is out of scope, but could it be cached at the corporate network level?