And a blog requires a Redis back-end because? I've hosted my blog on S3 & CloudFront for a while now without issue. Comments are hosted by Disqus, and the static files are generated using Pelican. Seriously, unless you're using your blog as a massive CMS, why not use static files?
"oh, static systems are for people that don't have fast databases ;-)" -- antirez (article author) https://twitter.com/antirez/status/407184116275503104