PortScan.com
PortScan.com checks TCP ports on the public IP address making the request and reports whether they are open, closed, or filtered.
What PortScan.com is
PortScan.com checks TCP ports on the public IP address making the request and reports whether they are open, closed, or filtered. Its free online scanner offers a fast scan of 32 common ports in about 20 seconds, or a deep scan of all 65,535 TCP ports with service version detection. The target is determined by the visitor’s connection, so users cannot enter another IP address. An API provides polling endpoints and a streaming v2 endpoint, requires no signup or API key, and supports IPv4 and IPv6. Webhook callbacks can report scan completion or failure, with CI/CD pipelines and monitoring scripts described as use cases. An MCP server provides fast_scan and deep_scan tools with setup instructions for several coding and chat tools. The API supports TCP scans only, and detailed scan results expire after 24 hours. PortScan.com describes the service as a basic port check rather than a security audit, and says results may be incomplete or inaccurate. The site lists cloud deployment and JSON export.
Good
- Fast scan checks 32 common TCP ports.
- Deep scan covers all 65,535 TCP ports.
- API requires no signup or API key.
- Supports IPv4 and IPv6.
Watch out
- Cannot scan an arbitrary target IP.
- API scans TCP ports only.
- Detailed results expire after 24 hours.
- Results may be incomplete or inaccurate.
Who it suits
PortScan.com suits users checking the public IP address of the connection they are using. Its API and webhooks may also suit self-checking by servers, CI/CD pipelines, and monitoring scripts.
Verdict
PortScan.com offers quick and deep checks of the requesting public IP, plus API access for automation. Treat the output as a basic port check, not a security audit.
Plans and prices
From PortScan.com's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free online port scanner | Free | Scans only the public IP address of the request · Fast scan: 32 TCP ports · Deep scan: all 65,535 TCP ports |
The facts
Each one read from PortScan.com's own pages, with the date it was checked.
What it does
- API
- The API supports polling endpoints and a streaming v2 endpoint, requires no signup or API key, and supports IPv4 and IPv6.checked 7 Oct 2026
- Automation
- The API supports webhook callbacks on scan completion or failure and describes CI/CD pipelines and monitoring scripts as use cases.checked 7 Oct 2026
- Data handling
- The site says its scanning nodes are in the Netherlands, France, and the UK, and scan results are stored in an EU database.checked 7 Oct 2026
- Integrations
- The MCP server provides fast_scan and deep_scan tools and lists setup instructions for Claude Code, Cursor, Windsurf, Claude Desktop, VS Code, Gemini CLI, Codex, and ChatGPT.checked 7 Oct 2026
- Intended users
- The API documentation describes use for self-checking by servers, CI/CD pipelines, and monitoring scripts.checked 7 Oct 2026
- Limitations
- The homepage says the scan is a basic port check, not a security audit, and results may be incomplete or inaccurate.checked 7 Oct 2026
- Limits
- The API supports TCP scans only, does not allow arbitrary target IPs, and scan results expire after 24 hours.checked 7 Oct 2026
- Privacy
- The site says it has no user accounts, sends no data to third parties, and uses a self-hosted Plausible instance for aggregate page views without cookies or personal data.checked 7 Oct 2026
- Purpose
- Checks TCP ports on the public IP address making the request and reports whether ports are open, closed, or filtered.checked 7 Oct 2026
- Rate limits
- The API documents limits of 2,000 fast scans per ASN per hour, one deep scan per IP per five minutes and 200 per ASN per hour, plus an edge limit of 30 requests per IP per minute.checked 7 Oct 2026
- Retention
- The site says scan metadata is logged for 180 days, detailed scan results are kept for 24 hours, and a seven-day history of completed scans is visible from the same IP.checked 7 Oct 2026
- Scan modes
- Fast scan checks 32 common ports in about 20 seconds; deep scan covers all 65,535 TCP ports and includes service version detection.checked 7 Oct 2026
- Target restriction
- The scan target is set from the visitor’s connection, and the site does not let users enter another IP address.checked 7 Oct 2026
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