Fly.io
Fly.io declares 37 subprocessors in its subprocessor list, which we last checked on Nov 11, 2026 (evidence). They include Amazon Web Services, Google Cloud and OpenAI. The list last changed on Oct 29, 2026: 2 added, 0 removed. 20 tracked vendors name Fly.io as a subprocessor, including Deepgram, Supabase and Replicate.
Not loaded by any published homepage.
Subprocessors CSV of Fly.io's subprocessors · Atom feed of Fly.io's subprocessors DORA draft CSV of Fly.io's subprocessors as declared by Fly.io what's this? ·
37 third parties.
| Name | Purpose | Location | Listed since |
|---|---|---|---|
| Anthropic AI | AI-assisted log analysis, support responses, and signup classification | United States | |
| AWS | Account management, backup storage, engineering support | United States | |
| CacheNetworks | Hosting provider | United States | |
| ClickHouse | Audit log storage for control plane API requests | United States | |
| Customer.io | Newsletters and transactional email | United States | |
| DataPacket | Hosting provider | United Kingdom | |
| Depot | Customer software builds | United States | |
| Discord | Customer support communication | United States | |
| Discourse | Customer support communication | United States | |
| Dropbox Sign | Agreement signing (DPA, BAA, NDA) | United States | |
| Productivity suite and cloud infrastructure | United States | ||
| Help Scout | Customer support communication | United States | |
| Hivelocity | Hosting provider | United States | |
| Honeycomb | Tracing and observability | United States | |
| HubSpot | Customer relationship management | United States | |
| incident.io | Incident response and on-call management | United Kingdom | |
| IPinfo | Signup IP geolocation and risk scoring | United States | |
| Latitude | Hosting provider | United States | |
| LaunchDarkly | Feature rollout management | United States | |
| Mailgun | Transactional email | United States | |
| Metronome | Billing | United States | |
| NetActuate | Hosting provider | United States | |
| OpenAI AI | Incident summary generation | United States | |
| OpenRouter AI | AI model routing for internal tooling | United States | |
| PeopleDataLabs | Signup risk scoring | United States | |
| Plain | Customer support communication | United Kingdom | |
| PostHog | Product analytics | Germany | |
| RudderStack | Product analytics | United States | |
| Sentry | Error reporting | United States | |
| Slab | Knowledge management | United States | |
| Slack | Customer support communication | United States | |
| Snowflake | Customer relationship management | United States | |
| Stripe | Payment processing, fraud and abuse prevention | United States | |
| Tigris | Object storage for Sprites | United States | |
| Timescale | Time-series metrics storage | United States | |
| Vultr | Hosting provider | United States | |
| Zenlayer | Hosting provider | United States |
Web TechnologiesCSV of Fly.io's web technologies · Atom feed of Fly.io's web technologies
Fly.io's homepage made 42 requests to 4 domains, and 2 services controlled by another company.
2 third parties by category: Analytics 1Other 1
Subprocessor of (20)CSV of the companies listing Fly.io · Atom feed of the companies listing Fly.io
Builder.io builder.io
Campsite campsite.com Application hosting
Day AI day.ai Cloud provider
Deepgram deepgram.com Cloud hosting and edge compute platform (infrastructure & deployment services)
Double doublehq.com White labeling
Featurebase featurebase.app Application hosting
Fillout fillout.com
Funnelfeedr funnelfeedr.com Hosting provider for containerised data-collection services. Customer Data is not stored here.
ilert ilert.com
MeshMesh meshmesh.io Application infrastructure
One Horizon onehorizon.ai Hosting and Redis caching
Outline getoutline.com Hosting
Pilosa pilosa.com Application hosting
Replicate replicate.com Public Cloud infrastructure
Salad salad.com
Spiffy spiffy.co Cloud infrastructure provider for Spiffy, where all applications are hosted. Almost all data stored, processed, and transmitted through Spiffy resides on Fly data centers.
Supabase supabase.com Provision of hosting services
Supered supered.io Servers
Tigris Data tigrisdata.com Hosting Provider
Turso turso.tech Cloud hosting
Service statusCSV of Fly.io's status page incidents · Atom feed of Fly.io's status page incidents
- critical LAX region outage
90 days agotoday
- 76 incidents in 90 days
- 29 major or critical
- 1 h 3 min typical time to resolve
- 12 h 52 min longest major
| Began | Incident | Impact | Lasted |
|---|---|---|---|
| LAX region outage | critical | ongoing | |
| Intermittent errors pushing images to Fly.io Registry | no impact stated | — | |
| IPv6 egress issues on a subset of IAD hosts | minor | 22 min | |
| Emergency network maintenance on a subset of hosts in ORD | minor | 14 min | |
| Elevated Machine start failures in ARN | minor | 1 h 1 min | |
| Emergency maintenance in IAD | major | 38 min | |
| Outbound IPv4 connectivity failures in ARN, JNB, and GRU | minor | 2 h 9 min | |
| Slow image pulls delaying Machine starts in IAD | minor | 1 h 28 min |
Incidents per month
critical major minor no impact stated
Components affected
| Component | Incidents | Bar |
|---|---|---|
| Customer Applications | 2 | |
| AMS - Amsterdam, Netherlands | 1 | |
| DFW - Dallas, Texas (US) | 1 | |
| Deployments | 1 | |
| GRU - Sao Paulo, Brazil | 1 | |
| LAX - Los Angeles, California (US) | 1 | |
| SJC - San Jose, California (US) | 1 | |
| Sprites | 1 |
As Fly.io's status page reports its own incidents (scheduled maintenance left out), read every few hours since (evidence)
Incidents reported by Fly.io's subprocessorsCSV of incidents reported by vendors Fly.io lists · Atom feed of incidents reported by vendors Fly.io lists
116 reported incidents in the last 30 days, by 17 of the vendors Fly.io lists as subprocessors.
A subprocessor list names a company, not the service an incident touched. This does not show that Fly.io was involved.
And 91 more. All of them: CSV · Who is around them.
ChangesCSV of Fly.io's changes · Atom feed of Fly.io's changes
See the list as we read it on any date: Time machine
- Added subprocessor: Hivelocity evidence: subprocessor: Hivelocity list before and after: subprocessor: Hivelocity
- Added subprocessor: Zenlayer evidence: subprocessor: Zenlayer list before and after: subprocessor: Zenlayer
- Added subprocessor: Dropbox Sign evidence: subprocessor: Dropbox Sign list before and after: subprocessor: Dropbox Sign
- Added subprocessor: incident.io evidence: subprocessor: incident.io list before and after: subprocessor: incident.io
- Added subprocessor: Vultr evidence: subprocessor: Vultr list before and after: subprocessor: Vultr