Directory
Independently measured by StackWitness. We ping each service host ourselves (reachability) and also read its status page. The strong signal is when a host is unreachable while the vendor claims operational.
No cases right now where our probes cannot reach a host the vendor claims is operational.
| Provider | Category | Host reachability | Vendor reported |
|---|---|---|---|
| Stripe | payments | reachable | operational |
| PayPal | payments | reachable | unknown |
| Plaid | payments | reachable | operational |
| OpenAI | ai | reachable | operational |
| Anthropic | ai | reachable | operational |
| AWS S3 | cloud | reachable | unknown |
| Cloudflare | cdn | reachable | degraded |
| Vercel | cloud | reachable | operational |
| Supabase | database | reachable | operational |
| Neon | database | reachable | unknown |
| GitHub | productivity | reachable | operational |
| Twilio | communications | reachable | degraded |
| SendGrid | reachable | operational | |
| Postmark | reachable | unknown | |
| Resend | reachable | operational | |
| Auth0 (vendor-reported only) | auth | not independently probed yet | unknown |
| Clerk | auth | reachable | operational |
| WorkOS | auth | reachable | operational |
| Algolia (vendor-reported only) | search | not independently probed yet | unknown |
| Sentry | observability | reachable | operational |
| Datadog | observability | reachable | operational |
| PagerDuty | observability | reachable | unknown |
| Slack | communications | reachable | unknown |
| Linear | productivity | reachable | operational |
| Notion | productivity | reachable | operational |
| HubSpot | other | reachable | operational |
| Intercom | communications | reachable | unknown |
| Shopify (vendor-reported only) | ecommerce | not independently probed yet | operational |
| Mux | media | reachable | operational |
| Cloudinary | media | reachable | operational |