Port 8008: HTTP-alt
Port 8008 is commonly used as an alternate, unprivileged HTTP port, and it is also the port Chromecast and other Google Cast devices use for local discovery and control over the DIAL protocol. It is not a fixed IANA assignment, just a widely followed convention.
| Port number | 8008 |
|---|---|
| Service | Alternate HTTP / Google Cast discovery |
| Protocol | TCP |
| Category | Web |
| Default encryption | No |
Frequently asked questions
What is port 8008 used for?
Port 8008 is commonly used as an alternate, unprivileged HTTP port, and it is also the port Chromecast and other Google Cast devices use for local discovery and control over the DIAL protocol. It is not a fixed IANA assignment, just a widely followed convention.
Is port 8008 TCP or UDP?
Port 8008 (HTTP-alt) uses TCP.
Is port 8008 secure?
Port 8008 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 8008 on my firewall?
Only if you specifically need HTTP-alt. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.