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Assuming the HTML is also static, you should just move everything (HTML and relative files) to a static folder (no need to separate the HTML template since it is static as well), and then you can map it to any URL you want using your web server, e.g. you can put them inside {{ STATIC_ROOT }}/my-page/, and map example.com/my-page/ to that folder on the filesystem
Run collectstatic, Django will copy/generate the static files into your STATIC_ROOT folder on the filesystem https://docs.djangoproject.com/en/dev/ref/contrib/staticfiles/#collectstatic
Then use a web server like Apache or Nginx to serve your /my-page URL directly without hitting your Django app. (set in Django with STATIC_URL), while the other requests are forwarded to your Django app
So e.g. your Django app will run on 127.0.0.1:8000, while nginx runs on the default HTTP/HTTPS port, and uses e.g. proxy_pass to talk to your Django app for the dynamic content