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Cloudflare Global Outage Spreads to Crypto; Multiple Front Ends Down
A widespread Cloudflare outage disrupted major parts of the internet on Tuesday, knocking many crypto platforms offline.
Updated Nov 18, 2025, 1:02 p.m. Published Nov 18, 2025, 12:32 p.m. 1 min read
What to know:
- Arbiscan, DefiLlama, X and other crypto-related sites experienced downtime tied to Cloudflare’s system-wide disruption.
- Cloudflare acknowledged the issue, citing widespread '500' errors and failures across its dashboard and API.
- BitMEX reported related outages, and Cloudflare shares (NET) slipped 3.5% in pre-market trading.
A global outage across Cloudflare's internet services led to a number of crypto front ends facing downtime on Tuesday.
Toncoin is suffering a "major outage" alongside Abritrum block explorer Arbiscan, with several other sites including social media platform X and data platform DefiLlama flashing intermittent "internal server errors."
"Cloudflare is aware of, and investigating an issue which impacts multiple customers: Widespread 500 errors, Cloudflare Dashboard and API also failing," the company wrote at 11:48 UTC.
A 500 error is a generic internal server error that occurs when a website is down. Website users will not be able to access a web page as long as the error persists.
The outage comes just weeks after Amazon Web Services (AWS) experienced a major outage that disrupted services across thousands of websites and applications. Sites hit included Coinbase's trading platform and Base layer-2 network as well as trading platform Robinhood.
Crypto exchange BitMEX also shared that it its investigating an outage linked to the Cloudflare issues.
The internet service provider announced NET Dollar, a U.S. dollar-backed stablecoin, in September, although it has not yet been released.
Cloudflare Inc (NET) shares fell 3.5% the pre-market trading following the issue.
Read more: The AWS Outage Shows Why Crypto Can't Keep Relying On Centralized Infrastructure
UPDATE (Nov. 18, 12:56 UTC): Added a paragraph explaining what a 500 error is. Added details about Toncoin also suffering a "major outage."
UPDATE (Nov. 18, 13:01 UTC): Adds last month's AWS outage in fifth paragraph.
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