Adding a 404 page for www.jvt.me on Netlify, with Hugo

In April I realised that my 404 page wasn't working on Netlify, which meant that when someone hit an invalid link on my site, they'd get a default Netlify error page, rather than anything branded on my site.

Now, I make a large amount of effort to make sure that my site never returns a 404 - I verify that my blog posts always stick around (as I receive a lot of traffic from external sources) as well as performing HTMLProofer checks on the site to verify that anything I've personally linked in the site resolves correctly.

I used Anna's awesome post Custom 404 page in Hugo on Netlify to get this working - plus adding a custom content page /404/.