Cloudflare outage history and postmortems

Cloud and hosting · San Francisco, US · 56 incidents in 90 days · 99.98% implied uptime · last 9h ago

Incidents

62 on file

Started	Incident	Impact	Root cause	Duration
Sep 2500:03 UTC	Issues with Durable Objects	minor	Not disclosed	Ongoing
Sep 2420:40 UTC	Intermittent 500 errors for backend services on Replicate	minor	Not disclosed	1h 54m
Sep 2417:33 UTC	Delays Starting Cloudflare Workers Builds	minor	Not disclosed	3h 19m
Sep 2417:26 UTC	Browser isolation session data sync issues	minor	Not disclosed	5h 11m
Sep 2415:20 UTC	Cloudflare Access updates delayed	minor	Not disclosed	3h 5m
Sep 2410:22 UTC	Customers using BYOIP can have issues updating their BGP prefixes, including advertising or withdrawing prefixes.	minor	Not disclosed	3m
Sep 2318:42 UTC	Network Performance Degradation , Asia-Pacific	minor	Not disclosed	Ongoing
Sep 2315:54 UTC	Elevated Errors with any / all in http_response_cache_settings	minor	Not disclosed	2h 14m
Sep 2309:08 UTC	Intermittent authentication errors for API and R2	minor	Not disclosed	11h 51m
Sep 2308:09 UTC	Increased Errors for Durable Objects	minor	Not disclosed	1h 51m
Sep 2304:08 UTC	Elevated number of R2 503 errors in Australian Eastern Coast region	minor	Not disclosed	17m
Sep 2300:42 UTC	Issues with 1.1.1.1 for Families	minor	Not disclosed	44m
Sep 2221:41 UTC	Network Performance Issues in Taipei	none	Not disclosed	0m
Sep 2219:23 UTC	Cloudflare One Clients are incorrectly challenged on some sites	minor	Not disclosed	Ongoing
Sep 2215:31 UTC	Bot Management Configuration Propagation Issues	minor	Not disclosed	1h 4m
Sep 2214:49 UTC	Connectivity issues in Los Angeles (LAX)	minor	Not disclosed	0m
Sep 2214:37 UTC	Elevated error rates for Stream Live LL-HLS	minor	Not disclosed	1h 1m
Sep 2209:36 UTC	Partial visibility of Workers and Durable Objects analytics for Fedramp High customers	minor	Not disclosed	3h 16m
Sep 2207:20 UTC	Network Performance Issues in San Jose (SJC-A)	minor	Not disclosed	1h
Sep 2202:25 UTC	Network connectivity issues in LHR, London	minor	Not disclosed	1h 11m
Sep 2118:15 UTC	Increased Cache Failures	none	Not disclosed	0m
Sep 2112:42 UTC	Unable to start containers in Asia-Pacific	minor	Not disclosed	41m
Sep 2109:37 UTC	Unable to register certain domains	minor	Not disclosed	11m
Sep 1901:36 UTC	Elevated errors in Ashburn, VA (IAD)	none	Network	0m
Sep 1817:15 UTC	Network Performance Issues in Ashburn	none	Not disclosed	0m
Sep 1806:42 UTC	Cloudflare Dashboard Workers KV Issue	minor	Not disclosed	1h 33m
Sep 1723:37 UTC	Increased Errors for Durable Objects and Downstream Services in Asia Pacific (APAC) Region	minor	Not disclosed	1h 17m
Sep 1720:42 UTC	Network Performance Issues in Vancouver, Canada	none	Not disclosed	0m
Sep 1718:29 UTC	Network Performance Issues in Ashburn, VA, United States	minor	Not disclosed	1h 28m
Sep 1714:00 UTC	Increased HTTP Errors in GIG (Rio de Janeiro)	none	Not disclosed	0m
Sep 1701:09 UTC	Replicate Pruna issue	minor	Not disclosed	20h 42m
Sep 1622:30 UTC	Hyperdrive Elevated Origin Connection Failure Rates	none	Config change	0m
Sep 1618:35 UTC	Increased HTTP 522 Errors in St. Louis	none	Not disclosed	0m
Sep 1615:08 UTC	Issues with 1.1.1.1 public resolver on .tn queries	minor	Not disclosed	3h 11m
Sep 1608:33 UTC	Email Notifications Delayed	minor	Not disclosed	17m
Sep 1608:31 UTC	Support Helpdesk Availability Issues	minor	Dependency	6h 27m
Sep 1602:03 UTC	Network Performance Issues in Los Angeles	minor	Not disclosed	14h 20m
Sep 1522:00 UTC	Network Performance Issues in Ashburn	none	Not disclosed	0m
Sep 1507:15 UTC	Network latency affecting Singapore	minor	Not disclosed	20m
Sep 1423:03 UTC	Load Balancing Analytics and Notification Delays	minor	Not disclosed	3h 23m

About Cloudflare

Cloudflare, Inc., is an American technology company headquartered in San Francisco, California, that provides a range of internet services, including content delivery network (CDN) services, cloud cybersecurity, DDoS mitigation, and ICANN-accredited domain registration.

The last year, day by day

No incident Minor Major CriticalDeeper colour: longer outage

Downtime, added up

Cloud and hosting median

43m

Cloudflare: 29m weighted downtime in range, category median 43m.

56 incidents, 0 major or critical, 8d 9h of incident time (0m major or critical, 8d 9h partial), longest 2d 8h, implied uptime 99.98%, between Jun 28, 2026 and Sep 25, 2026.

Stated causes

52 incidents with no cause stated.

Postmortems

Started	Incident	Impact	Root cause	Duration
Dec 508:47 UTC	Body parsing change for a React Server Components fix causes 25-minute outage	major	Config change	25m
Nov 1811:20 UTC	Oversized Bot Management feature file breaks the core proxy	critical	Config change	5h 46m
Jul 1421:52 UTC	1.1.1.1 public DNS resolver unreachable for 62 minutes	critical	Config change	1h 2m
Jun 1217:52 UTC	Workers KV storage failure cascades to Access, WARP and more	critical	Dependency	2h 28m
Feb 608:14 UTC	R2 object storage disabled during a phishing report remediation	major	Operator	1h 22m
Jul 213:42 UTC	WAF regular expression exhausts CPU worldwide for 27 minutes	critical	Deployment	27m

Across fru.dev:Company profile Compliance Quarterly Free tiers Paydays Regions Changefeed SLAs TechConf Uptime

Questions

Is Cloudflare down right now?

Check Cloudflare's own status page at https://www.cloudflarestatus.com for the live state. This page shows Cloudflare's incident history from that page; the most recent incident started 2026-09-25: "Issues with Durable Objects".

How often does Cloudflare have outages?

Cloudflare posted 56 incidents in the last 90 days and 58 in the last year, 0 of them major or critical in the last 90 days. The median incident lasted 1h 16m.

When was Cloudflare's last major outage?

2025-12-05: "Body parsing change for a React Server Components fix causes 25-minute outage", lasting 25m.

What usually causes Cloudflare incidents?

Where Cloudflare explained the cause, the most common was configuration change (4 incidents). Most status updates do not name a cause.

Sources: vendors' own status pages, published postmortems and SEC 8-K Item 1.05 filings, read daily. Times as reported. Logos via logo.dev; trademarks belong to their owners.