Bug: Redirect pythoninsider.blogspot.com to blog.python.com

[hugovk]

Describe the bug

We have both https://pythoninsider.blogspot.com/ and https://blog.python.org/ for the same Blogger blog.

It can be confusing to have both domains in use, and people often end up using the blogspot one:

https://www.youtube.com/live/Qk1b0AiZCYo?si=BTwkFihKRwPTW7Ne&t=1844

And the blog.python.org looks much better/official than a blogspot one.

Can we redirect pythoninsider.blogspot.com to blog.python.org, including permalinks such as https://pythoninsider.blogspot.com/2024/11/python-3140-alpha-2-released.html to https://blog.python.org/2024/11/python-3140-alpha-2-released.html?

To Reproduce

1. Go to https://blog.python.org/
2. See the Python Insider blog
3. Go to https://pythoninsider.blogspot.com/
4. See the same Python Insider blog but at a different domain

Expected behavior

1. Go to https://blog.python.org/
2. See the Python Insider blog
3. Go to https://pythoninsider.blogspot.com/
4. It redirects to https://blog.python.org/
5. See the same Python Insider blog but at one familiar domain

URL to the issue

No response

Screenshots

No response

Browsers

Firefox, Chrome, Safari

Operating System

macOS

Browser Version

131

Relevant log output

No response

Additional context

No response

[hugovk]

These instructions suggest the blogspot address will redirect to a custom domain:

https://support.google.com/blogger/answer/1233387?hl=en

Do we have a different setup?