Web ports
10 web ports: what each one does, its protocol, and whether it is secure by default.
SubnetKit lists 10 web ports, using TCP. 4 of 10 are formally registered with IANA rather than just a widely followed convention.
2 of the 10 web ports are encrypted by default; the rest send data in clear text unless wrapped in TLS, SSH, or a VPN.
Click any port below for its full page: what it does, its protocol, and whether it is safe to expose.
| Port | Service | Protocol | What it does |
|---|---|---|---|
| 80 | HTTP | TCP | Hypertext Transfer Protocol |
| 443 | HTTPS | TCP | HTTP over TLS |
| 3000 | Dev server | TCP | Common development server port (Node.js, Rails, React) |
| 8000 | HTTP-alt | TCP | Alternate HTTP / common dev server |
| 8008 | HTTP-alt | TCP | Alternate HTTP / Google Cast discovery |
| 8080 | HTTP-alt | TCP | Alternate HTTP / proxy |
| 8081 | HTTP-alt | TCP | Alternate HTTP / proxy |
| 8443 | HTTPS-alt | TCP | Alternate HTTPS |
| 9000 | Alt-9000 | TCP | Common alternate app port (PHP-FPM, SonarQube, Portainer) |
| 9090 | Prometheus | TCP | Prometheus monitoring web UI |
Frequently asked questions
Which ports are in the Web category?
port 80 (HTTP), port 443 (HTTPS), port 3000 (Dev server), port 8000 (HTTP-alt), port 8008 (HTTP-alt), port 8080 (HTTP-alt), port 8081 (HTTP-alt), port 8443 (HTTPS-alt), port 9000 (Alt-9000) and port 9090 (Prometheus).
How many web ports does SubnetKit list?
10, covering TCP. 4 of them are formally registered with IANA.
Are web ports secure by default?
2 out of 10 are encrypted by default. Check each port's page for its specific encryption status.
Which web port has the lowest number?
Port 80 (HTTP). Port 80 is plain HTTP, the default for unencrypted web traffic. Modern sites redirect it to HTTPS on port 443, but port 80 is still used for the initial redirect and for ACME certificate checks.