How Can I Achieve the Highest Possible Website Uptime?

You might want to consider self-hosting for more control, but it requires setting up redundant internet connections and having failover systems. Alternatively, a multi-cloud approach can help, but keep in mind that syncing databases across providers can get pretty complex and costly.

Honestly, achieving any level of high uptime comes down to smart resource allocation. Use multiple cloud providers like AWS or Cloudflare, and implement monitoring tools that can reroute traffic if one of your nodes fails. But even then, remember that no solution is foolproof, and the reality is that DNS issues can still derail your plans.

If your project is vital enough, you might want to invest in a setup with three nodes in separate geographic regions. This way, you can aim for around 99.999% uptime. But be prepared to shell out some serious cash for this kind of setup. It's a bit more feasible than chasing 100%.

A practical way to look at uptime is through the 'March of Nines' concept. Basically, every additional 'nine' in uptime takes exponentially more effort and resources. So, while it’s great to aim high, you also need to consider the diminishing returns in the real world.

Reaching 100% uptime is a dream that just isn't practical. There are too many variables involved like internet infrastructure and server reliability. Instead, focus on strategies to minimize downtime, such as load balancing and redundancy with servers in different locations. This way, if one goes down, others can take over.