Best send me your bank account number, your mother's maiden name, your ...

Nah, happens all the time.

I’m willing to send you $100 in gift cards.

gift cards. It just came back.

I get "Forbidden 403" more often than I like to think about it.

Did you recently upgrade, or did Apple upgrade you automatically, to a new version of El Capitan?

Just throwing around some guesses, but if either one is a "yes", you may need to upgrade the browser you are currently using.

Make 100% sure you are going to:

https://democraticunderground.com

If it looks right, I'd erase it and type it in again (in case there's some whitespace or
other invisible character in it).

403 is a generic error by web servers when a URL is not allowed. My guess is that you've
got a typo in the URL you're trying to access and trying to go someplace unintended.

Btw, MacOS does have a list of naughty sites (malware) that it will block without your
actively overriding the warning, but it's a lot more obvious why it's blocking it than a
a simple '403' error.

Did the same thing earlier today.

I rebooted my PC and now seems OK.

To clarify, this is not a 403 error code.

Omniweb is the first pro browser for Mac OS X and is still active from the venerable Omni Group.

Omniweb first. Epic last as Epic is not as verified. I use Epic for regular browsing but not financial sites.

I think I need to add a new browser, just in case.

I went to Firefox last year because the older Safari had issues with too many sites. Like you, I am using an older OS (Sierra 10.12.6) on my 10 year old iMac, so it's best to try other browsers.

(I just caught your "handle." Oh, how I loved that movie! A couple of months ago we met a woman who's about 45 years old and her mother named her Pooka because she loved it, too!)

What is a 403 Forbidden Error? The 403 Forbidden error is an HTTP status code which means that accessing the page or resource you were trying to reach is absolutely forbidden for some reason.