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Why Medium and Large Businesses Should Think Twice About Putting Everything on Public Clouds

Lately, it’s become increasingly clear that relying exclusively on massive cloud providers — AWS, Microsoft Azure, Cloudflare, Google, etc. — presents serious concentration risk. For companies whose digital footprint is customer-facing and mission-critical, it’s wise to evaluate semi-private hosted infrastructure (or fully private infrastructure) as a core part of their strategy.

Cloud Outages Are No Longer Rare — They’re Systemic Risk

Consider recent incidents:

  • On November 18, 2025, Cloudflare experienced a major internal service degradation that disrupted hundreds of sites and apps — including X (formerly Twitter), ChatGPT, Uber, and more. The Washington Post+2Reuters+2
  • In October 2025, AWS suffered a widespread outage, affecting millions of users across major platforms: Zoom, YouTube, Reddit, Snapchat, and more. Axios+1
  • Around the same period, Microsoft Azure went down, reportedly linked to a configuration change in its Azure Front Door network — disrupting services like Office 365, Xbox Live, and other high-traffic systems. AP News
  • Earlier, in June 2025, Google Cloud had a significant outage that rippled through Cloudflare’s infrastructure (Workers KV store, among others), affecting apps like Spotify and Discord. CRN+1
  • And going back to July 2024, a faulty CrowdStrike update caused 8.5 million Windows systems to crash, even impacting virtual machines on Azure. Wikipedia+1

These are not one-off “someone pushed the wrong button” mistakes — they reflect how deeply we’ve centralized internet infrastructure. When a handful of vendors touch so much of the web, a single issue can cascade widely.

Why a Semi-Private (or Private) Hosting Layer Helps

Given this fragility, building or maintaining a semi-private or private infrastructure — even alongside public cloud — offers several compelling benefits for medium and large companies:

  1. Reducing Single-Point-of-Failure Risk
    When you host mission-critical workloads on your own infrastructure (or with a dedicated provider), you’re not fully exposed to global cloud provider outages. If AWS or Cloudflare goes down, your core systems can keep running independently.
  2. Better Control Over Configuration
    In private environments, you can architect redundancy, failover, and monitoring exactly as needed, without being constrained by the black box of a public provider’s internal configurations or feature flags.
  3. Predictable Performance & Cost
    Public clouds offer elasticity, but unpredictable outages can disrupt your SLAs and revenue. With private or semi-private hosting, you can tune for consistent performance and potentially more predictable costs, especially when usage is stable.
  4. Security & Compliance
    Some industries require strict compliance around data sovereignty, isolation, or custom security policies. Private infrastructure or dedicated hosting gives you more control over where and how data resides.
  5. Hybrid Strategy Possibility
    You don’t necessarily need to abandon public clouds — a hybrid model often makes the most sense. Use private infrastructure for your most critical systems, and public clouds for burstable or less sensitive workloads.

A Balanced Take

I want to be clear: public clouds aren’t going away, and they remain incredibly valuable. They offer unmatched scale, global reach, and a rich ecosystem of services. For many companies — especially smaller ones — public cloud makes sense for 100% of their infrastructure.

But for medium-sized businesses, or larger companies with high-stakes public infrastructure, the risk of putting everything in the hands of a few hyperscalers is real. Outages are not just theoretical — the recent ones involving Cloudflare, AWS, Azure, and Google show that even industry giants struggle with reliability.

By committing to a semi-private or private setup, such companies can build a more resilient and controllable infrastructure, minimizing the chances that a single provider disruption turns into a public outage, lost revenue, or reputational damage.

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