Yes! Buttondown automatically indexes the following content of yours in Bing and Google:

• Your subscribe page, if your newsletter is marked as public
• Any web archives of emails you've sent, if they're marked as "public"
• The paywalled versions of any premium-only emails you've sent
• Any comments on any emails that your subscribers have left.

Buttondown respects canonical URLs; if your emails are being created through an RSS feed, for instance, we'll point Google (or whoever) to the original URL of your content to make sure the SEO gods are checking in the right place.