The Cloudflare outage on Tuesday morning (18) caused a wave of instabilities affecting some of the biggest internet services. Platforms like X (formerly Twitter), ChatGPT, Amazon, Canva, and even monitoring sites like DownDetector were unavailable or showed error messages for most of the morning. The problem, acknowledged by the company on its global status page, had worldwide effects.
Cloudflare is a digital infrastructure company responsible for protecting and managing the traffic of over 24 million websites. Its main service acts as a ‘shield’, filtering cyber attacks, intelligently distributing content, and ensuring that pages remain accessible even in the face of unexpected spikes in traffic.
In many cases, when a site ‘goes down’, it is actually Cloudflare, not the original site, that is experiencing issues. According to reports compiled by DownDetector, problems started around 8:50 am Brasilia time. Paradoxically, DownDetector itself went down, indicating that the instability was affecting fundamental systems in the digital ecosystem.
On Cloudflare’s official incident page posted at 8:48 am, the company acknowledged ‘widespread 500 errors’ in its global network, as well as failures in the control panel and API. In their statement, the company mentioned investigating the extent of the issue and working to mitigate its effects. They also stated they were still evaluating the total impact and had teams mobilized.
This type of error, known as ‘500’, indicates server failures in processing requests. As millions of sites rely on the company’s tools to function, a domino effect quickly took place. Users from different countries on social media reported feeling like ‘the entire internet had crashed’. Services protected by the platform showed blank pages or unavailability alerts when trying to load.
In addition to social networks and virtual assistants, other widely used services also experienced instability. In some cases, Cloudflare customers even had difficulty opening support tickets, as the provider itself was facing technical issues. The immediate repercussions were felt worldwide. Publications, both in Brazil and abroad, multiplied on platforms like Threads, where users joked about ‘someone tripping over the server cables’. International outlets, such as the BBC and New York Times, confirmed the global nature of the outage affecting various sectors from social networks to online games like League of Legends, streaming services, and AI companies.
The incident once again highlights the level of dependence that the contemporary internet has on a few companies specialized in infrastructure. Just like the AWS outage weeks prior, the Cloudflare instability illustrated that when a central service fails, the effects spread almost instantaneously throughout the global network. While investigating the causes, Cloudflare stated that further updates would be released throughout the day. The extent of the damage and the time needed for complete normalization were yet to be confirmed by the company.
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