# The Down Index, 2026-W43

The week's worst incidents, scored 0-100 (impact 30, breadth 20, duration 15, reach 20, acknowledgement 15). [Methodology](https://down.guide/leaderboard/methodology).

1. **69** Bitbucket: [Disrupted Bitbucket availability](https://down.guide/bitbucket/DWN-17d8efdee5) (Major outage, 40m)
2. **66** Anthropic: [Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5](https://down.guide/anthropic/DWN-e6ab419d78) (Major outage, 34m)
3. **65** Salesforce: [MCGrowth Degradation on AUS2S, AUS4S, AUS6S, AUS14S…](https://down.guide/salesforce/DWN-cee38c7adc) (Major outage, 22h 5m)
4. **63** GitHub Actions: [Delays for Pull Requests and Webhook deliveries](https://down.guide/github-actions/DWN-b3ce232177) (Major outage, 4h 30m)
5. **63** Salesforce: [coreService Disruption on USA228, USA316, USA328, USA604…](https://down.guide/salesforce/DWN-fdd981f6fa) (Major outage, 4h 53m)
6. **63** Salesforce: [coreService Disruption on BRA34, BRA36, BRA38, BRA48…](https://down.guide/salesforce/DWN-5b7af833ac) (Major outage, 5h 5m)
7. **63** Salesforce: [coreService Disruption on USA572, USA580, USA586, USA648…](https://down.guide/salesforce/DWN-b6e9715d1c) (Major outage, 5h 25m)
8. **63** Salesforce: [coreService Disruption on CAN28, USA236, USA286, USA312…](https://down.guide/salesforce/DWN-a4ef1f7ac6) (Major outage, 4h 45m)
9. **63** Salesforce: [coreService Disruption on USA332, USA334, USA336, USA358…](https://down.guide/salesforce/DWN-a6254fa4b3) (Major outage, 4h 8m)
10. **61** Salesforce: [Agentforce Degradation on CAN2S, CAN4S, CAN6S, CAN8S…](https://down.guide/salesforce/DWN-429414509e) (Major outage, 1h 50m)
11. **60** GitHub Pages: [Degraded availability for GitHub Actions, GitHub Pages and Webhooks](https://down.guide/github-pages/DWN-26db481646) (Major outage, 1h 8m)
12. **58** Salesforce: [MarketingCloudCoreService, MarketingCloudLogin Disruption on DB402025, DB402026, DB402028, DB402029…](https://down.guide/salesforce/DWN-8bc5ea69d4) (Major outage, 37m)
13. **57** Anthropic: [Elevated errors for Claude Sonnet 5.5 and other models](https://down.guide/anthropic/DWN-c9b731d6b0) (Partial outage, 1h 39m)
14. **54** Salesforce: [coreService Disruption on USA1400](https://down.guide/salesforce/DWN-19c08adb59) (Major outage, 6h 13m)
15. **54** Salesforce: [coreService Disruption on USA1408](https://down.guide/salesforce/DWN-7dd0457ef8) (Major outage, 6h 50m)
16. **54** Salesforce: [coreService Disruption on USA1380](https://down.guide/salesforce/DWN-0cff73cf8f) (Major outage, 7h 15m)
17. **54** Anthropic: [Elevated errors for Claude Fable 5 and Claude Fable 5.1](https://down.guide/anthropic/DWN-9f4cf3e25a) (Partial outage, 37m)
18. **54** Anthropic: [Elevated errors for Claude Fable 5.1](https://down.guide/anthropic/DWN-9332a3488f) (Partial outage, 32m)
19. **52** Salesforce: [coreService Disruption on USA700](https://down.guide/salesforce/DWN-245d7eac71) (Major outage, 3h 25m)
20. **51** Akamai Cloud (Linode): [Issue in creating new LKE Enterprise cluster across regions](https://down.guide/linode/DWN-f91b72bef2) (Degraded, 9h 14m)
21. **51** Salesforce: [coreService Disruption on USA864](https://down.guide/salesforce/DWN-fbb5221dd9) (Major outage, 2h 15m)
22. **51** Salesforce: [coreService Disruption on USA1072](https://down.guide/salesforce/DWN-759e8767df) (Major outage, 1h 46m)
23. **51** Ably: [Elevated connection errors in us-east-1](https://down.guide/ably/DWN-092f4de2fb) (Degraded, 14h 21m)
24. **50** Anthropic: [Elevated errors for Claude Opus 5.5](https://down.guide/anthropic/DWN-b5adb802f9) (Partial outage, 6m)
25. **48** Salesforce: [MarketingCloudCoreService Disruption on DB467](https://down.guide/salesforce/DWN-2849a44f3c) (Major outage, 40m)

Previous week: https://down.guide/leaderboard/2026-W42; next week: https://down.guide/leaderboard/2026-W44

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