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.

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.