Nouva Ephemeral Tunnels
Tunnel acceptable-use policy
Effective July 17, 2026
Nouva Ephemeral Tunnels is a shared, free developer utility for temporary development, preview, webhook, and callback testing. Tunnel URLs are public and exist only while the authorizing SSH session is connected.
Allowed use
You may expose services you control for development and testing, receive legitimate third-party callbacks, demonstrate non-production work, and replay your own captured requests while the originating session remains live.
Prohibited use
You must not use a Nouva tunnel for:
- phishing, impersonation, credential collection, or deceptive login pages;
- malware, exploit delivery, command-and-control traffic, or illegal content;
- spam, unsolicited bulk messaging, scanning, scraping, or denial-of-service activity;
- an open proxy, traffic relay, production hosting, or bypassing network restrictions;
- collecting data without authorization or exposing secrets and production data;
- infringing rights or violating any applicable law.
Shared-service limits
The fair-use limits below apply equally to everyone. At a rolling request or transfer limit, SSH remains connected but new HTTP requests receive 429 until usage falls below the window. Attempts rejected at the edge do not consume the rolling allowance.
| Limit | Free V1 allowance |
|---|---|
| Live forwards | 5 per workspace |
| SSH connections | 3 per user, 5 per workspace |
| Transfer | 5 GiB / 24h, 25 GiB / 30d per workspace |
| Requests | 50,000 / 24h, 250,000 / 30d per workspace |
| Request rate | 60 req/s sustained, burst 120 per forward |
| In flight | 100 per forward, 250 per workspace |
| Request body | 25 MiB |
| Response body | 100 MiB |
| URL / headers | 8 KiB / 32 KiB |
| Ordinary HTTP lifetime | 90 seconds |
| WebSocket / SSE | No fixed lifetime; 30-minute no-byte timeout |
| SSH lifetime | Unlimited while keepalives succeed |
| SSH liveness | Disconnect after three missed 30-second keepalives |
Inspection and privacy
Request metadata is retained for seven days. Full bodies are captured only when the tunnel creator enables capture, are encrypted at rest, and remain creator-only. Workspace administrators may disconnect a session but cannot read its captured payloads. Do not send secrets that you are not authorized to process.
Enforcement
Nouva may immediately disconnect sessions, reserve aliases, or suspend users and workspaces to protect people and infrastructure. Confirmed abuse evidence may be kept for up to 180 days; ordinary captures and session metadata keep their shorter published retention periods. Enforcement does not create a right to a permanent alias or endpoint.
Report a problem
Use the tunnel abuse report and include the hostname, what happened, and when you observed it. Do not include passwords, access tokens, or unnecessary personal data.