Always take backups, kids!
For some reason, I didn’t take backups of this site. It’s not like it’s difficult; I’ve got backup plugins active on all my other sites. God knows why I forgot this one. So when I had to migrate to a new server, I had no copy of my content.
I’ve had to start the undignified process of finding which pages of my site have backlinks (using Majestic SEO) and the reinstating them by getting the content from the Wayback Machine. Plagiarising my own content!