UPDATE: Nov. 18, 2025, 11:41 am EST Many and apps affected by the Cloudflare outage are coming back online. Mashable received the following emailed statement from Cloudflare: “Many of Cloudflare’s services experienced a significant outage today beginning around 11:20 UTC. It was fully resolved at 14:30 UTC. The root cause of the outage was a configuration file that is automatically generated to manage threat traffic. The file grew beyond an expected size of entries and triggered a crash in the software system that handles traffic for a number of Cloudflare’s services. “To be clear, there. There is no evidence that this was the result of an attack or caused by malicious activity. We expect that some Cloudflare services will be briefly degraded as traffic naturally spikes post incident but we expect all services to return to normal in the next few hours. A detailed explanation will be posted soon on blog.cloudflare.com. Given the importance of Cloudflare’s services, any outage is unacceptable. We apologize to our customers and the Internet in general for letting you down today. We will learn from today’s incident and improve.”
Another day, another huge outage impacting sites across the internet.
At 11:48 UTC on Nov. 18, Cloudflare confirmed its global network is experiencing issues impacting “multiple customers.” No, you’re not experiencing déjà vu. This is not Cloudflare’s first rodeo. Huge swathes of the internet went down in June 2025 due to Cloudflare disruption, resulting in problems for Twitch, Etsy, Discord, and Google. Familiarity with these kinds of events doesn’t make them any less irritating.
Credit: Downdetector
In a statement to Mashable via email, Cloudflare said, “We saw a spike in unusual traffic to one of Cloudflare’s services beginning at 11:20 UTC. That caused some traffic passing through Cloudflare’s network to experience errors. We do not yet know the cause of the spike in unusual traffic. We are all hands on deck to make sure all traffic is served without errors. After that, we will turn our attention to investigating the cause of the unusual spike in traffic.
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“We will post updates to cloudflarestatus.com and more in-depth analysis when it is ready to blog.cloudflare.com.”
Cloudflare outage cause revealed: This is what happened.
The situation is still developing, so we’ve cataloged sites and services for which users have reported difficulties via Downdetector during this latest Cloudflare outage.
Sites impacted by Cloudflare outage
According to Downdetector, here’s a list of some of the sites seemingly affected by the Cloudflare outage (Disclosure: Downdetector is owned by Ziff Daviswhich also owns Mashable):
As of around 10 am ET on Tuesday, it seemed like some of the affected services had started recovering. Amazon Web Services was not listing major issues on its status page, while other services like YouTube, Spotify, and Facebook seemed to be working as well.
Similarly, the official status page for Riot Games’ League of Legends (as well as its other products) indicated that there were no issues. Cloudflare itself posted an update on its status page saying that “the incident is now resolved.” There may very well be lingering effects or even more to come because the internet is unpredictable, but for now, it seems like the hard part is over.
