Thank you very much! My project will use this to help determine the need/best time to merge against ToT LLVM. Your link has already been passed around the office.
It's clear on the front page, i.e. llvmweekly.org. But on the issue pages, you instruct people to go to the front page to subscribe to the newsletters, which raises doubt about the box immediately below.
Wouldn't it be interesting to make the page editable, for example in typical wiki-style like on kernelnewbies.org? Since much of your reader base consists of LLVM developers I'm sure this could further improve the content, as well as make it easy to fix small things such as typos.
Mail delivery is provided by Mailgun, with the necessary dynamic parts of the website handled by a simple Flask app.