Fierr
Replace your error page with a more stylish appearance with additional features.
4 Alternatives To Fierr
Amazon ElastiCache
Amazon ElastiCache offers fully managed Redis and Memcached. Seamlessly deploy, operate, and scale popular open source compatible in-memory data stores.
Cached Pages
CachedPages.com - Get the cached page of any URL from several sources
Cached View
CachedView claimed to be the provider of Google caches pages of any website at the moment listed in the index of the Google search engine.
Snapchive
Automatically snapshot websites every day/week/month.