Please suggest a hosting that can withstand short-term traffic peaks of about 15,000 requests per minute, which last no more than 1-3 hours and occur 3-5 times a week or less.
At the same time, the rest of the time the traffic is 25 times lower and does not cause any problems. This is absolutely live traffic, not a ddos attack.

Let's set the stage: 15,000 requests per minute (RPM) is a respectable amount of traffic, especially if it's concentrated within a short time frame of 1-3 hours. This translates to approximately 900,000 requests per hour, which is no trivial matter. To put this into perspective, a moderately popular e-commerce site might see around 100,000 requests per hour on a typical day.

Now, considering your traffic pattern, it's clear that you're dealing with a "bursty" workload, characterized by short periods of intense activity followed by prolonged periods of relative calm. This presents a unique challenge, as you need a hosting solution that can scale up quickly to handle the peak traffic, yet remain cost-effective during the quieter periods.

Here are a few options to consider:

Cloud Hosting: Cloud providers like AWS, Google Cloud, or Microsoft Azure offer scalable infrastructure that can be quickly spun up or down to match your traffic demands. You can deploy a load balancer to distribute incoming traffic across multiple instances, ensuring that no single server is overwhelmed. Be mindful, however, that cloud hosting can be more expensive than traditional hosting, especially if you're not careful with resource allocation.
Scalable VPS: A Virtual Private Server (VPS) can offer a good balance between cost and scalability. Look for a provider that offers easy scaling options, such as upgrading or downgrading your instance size on the fly. Some popular VPS providers include DigitalOcean, Linode, or OVH.
Load-Balanced Dedicated Servers: If you prefer a more traditional hosting approach, consider deploying multiple dedicated servers behind a load balancer. This setup allows you to distribute incoming traffic across multiple servers, ensuring that no single server is overwhelmed. However, this option can be more expensive than cloud or VPS hosting.
In any case, it's essential to ensure that your hosting solution is optimized for high traffic. This includes:

Caching: Implement caching mechanisms, such as Redis or Memcached, to reduce the load on your database and application servers.
Content Delivery Network (CDN): Use a CDN to distribute static assets, such as images and videos, across multiple edge locations, reducing the load on your origin server.
Database Optimization: Ensure that your database is properly optimized for high traffic, with adequate indexing, query optimization, and connection pooling.
To further mitigate the impact of flash crowds, consider implementing rate limiting or queueing mechanisms to manage incoming traffic during peak periods. This can help prevent server overload and ensure a better user experience.

Handling short-term traffic peaks requires a hosting solution that can scale quickly and efficiently. By choosing the right hosting option, optimizing your infrastructure, and implementing caching, CDN, and database optimization, you can ensure that your site remains responsive and available even during the most intense traffic periods.
I'll leave you with a bit of advice: don't be afraid to autoscale your infrastructure during peak periods. It's better to temporarily provision additional resources to handle the increased traffic than to risk server overload and a poor user experience.

Don't sweat the number of hits, focus on the strain each request puts on your system. Bring in a pro who can refactor your stack, implement a caching strategy, and filter out bot traffic to trim the fat off your request queue. Consider a VPS or dedicated server from any reputable provider to beef up your infrastructure.

Consider cloud-based hosting solutions (AWS, Google Cloud, Azure) that offer auto-scaling for handling high traffic spikes. Reduce server load with content delivery networks (CDNs). To ensure your server is capable of handling sudden increases in traffic without compromising performance, use load balancing.

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