Use cases
Software Products E-commerce MSPs Schools Development & Marketing DevOps Agencies Help Desk
Company
Internet Status Blog Pricing Log in Get started free

Outage in Cloudflare

CORS Headers Set Incorrectly For Certain Free Zones

Resolved Minor
May 19, 2025 - Started 11 months ago - Lasted 10 minutes
Official incident page

Incident Report

Cloudflare is investigating incorrect CORS headers being set for certain free zones.

Trusted by 1,000+ teams

The Status Page Aggregator with Early Outage Detection

Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.

Start Free Trial
  • No credit card
  • 14-day trial
  • 2-minute setup
IsDown status aggregator dashboard
Latest Updates ( sorted recent to last )
MONITORING 11 months ago - at 05/19/2025 09:43PM

The cause of this issue was identified and a fix was implemented. We are currently monitoring the effectiveness of this fix.

INVESTIGATING 11 months ago - at 05/19/2025 09:40PM

Cloudflare is investigating incorrect CORS headers being set for certain free zones.

Latest Cloudflare outages

Rulesets Rate Limiting accuracy - about 19 hours ago
Issues solving Challenges - about 24 hours ago
WARP connectivity - 3 days ago

The Status Page Aggregator with Early Outage Detection

With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.

Start free trial

No credit card required · Cancel anytime · 6320 services available

Integrations with Slack Microsoft Teams Google Chat Datadog PagerDuty Zapier Discord Webhook