QuickNode incident

Arbitrum Sepolia - Elevated 503 Errors

Minor Resolved View vendor source →

QuickNode experienced a minor incident on July 25, 2026 affecting Sepolia - JSON RPC and Sepolia - WebSocket API and 1 more component, lasting 12h 11m. The incident has been resolved; the full update timeline is below.

Started
Jul 25, 2026, 05:58 PM UTC
Resolved
Jul 26, 2026, 06:09 AM UTC
Duration
12h 11m
Detected by Pingoru
Jul 25, 2026, 05:58 PM UTC

Affected components

Sepolia - JSON RPCSepolia - WebSocket APISepolia — WebhooksSepolia — Streams

Update timeline

  1. investigating Jul 25, 2026, 05:58 PM UTC

    We're experiencing an elevated level of 503 errors and our team is currently investigating. We will update this page as more information becomes available.

  2. monitoring Jul 25, 2026, 08:25 PM UTC

    The elevated 503 errors on Arbitrum Sepolia have been resolved. We are monitoring the service for stability and will provide further updates if the issue recurs.

  3. resolved Jul 26, 2026, 06:09 AM UTC

    This incident has been resolved.