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SPECIFICTION
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PortScan.com

portscan.com

Free plan WebAPI
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Spec score 7.5 #16 of 26 in Port Scanner Software

What it is

PortScan.com is a free cloud service that checks TCP ports on the public IP address making the request and reports whether each is open, closed or filtered. Fast scan checks 32 common ports in about 20 seconds. Deep scan checks all 65,535 TCP ports and includes service version detection. The target comes from the visitor’s connection, so another IP address cannot be entered. An API offers 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 for CI/CD pipelines and monitoring scripts. An MCP server provides fast_scan and deep_scan tools with setup instructions for several coding and chat tools. The API supports JSON exports, TCP scans only, and results expire after 24 hours. PortScan.com lists scanning nodes in the Netherlands, France and the UK, with results stored in an EU database. It says metadata is logged for 180 days and that the scan is a basic port check, not a security audit; results may be incomplete or inaccurate.

Spec sheet

Purpose
Checks TCP ports on the public IP address making the request and reports whether ports are open, closed, or filtered.Read 7 Oct 2026 · portscan.com
Intended users
The API documentation describes use for self-checking by servers, CI/CD pipelines, and monitoring scripts.Read 7 Oct 2026 · api.portscan.com
API
The API supports polling endpoints and a streaming v2 endpoint, requires no signup or API key, and supports IPv4 and IPv6.Read 7 Oct 2026 · api.portscan.com
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.Read 7 Oct 2026 · mcp.portscan.com
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.Read 7 Oct 2026 · portscan.com
Automation
The API supports webhook callbacks on scan completion or failure and describes CI/CD pipelines and monitoring scripts as use cases.Read 7 Oct 2026 · api.portscan.com
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.Read 7 Oct 2026 · portscan.com
Limitations
The homepage says the scan is a basic port check, not a security audit, and results may be incomplete or inaccurate.Read 7 Oct 2026 · portscan.com
Limits
The API supports TCP scans only, does not allow arbitrary target IPs, and scan results expire after 24 hours.Read 7 Oct 2026 · api.portscan.com
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.Read 7 Oct 2026 · api.portscan.com
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.Read 7 Oct 2026 · portscan.com
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.Read 7 Oct 2026 · portscan.com
Target restriction
The scan target is set from the visitor’s connection, and the site does not let users enter another IP address.Read 7 Oct 2026 · portscan.com

Plans and prices

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 Read 7 Oct 2026 · portscan.com

Every PortScan.com plan and price →

Strong points and limits

Strong points

  • Fast and deep TCP scan modes
  • Deep scan includes service version detection
  • API requires no signup or key
  • IPv4 and IPv6 support
  • Webhook callbacks for scan completion or failure

Limits

  • Cannot scan an arbitrary IP address
  • TCP scans only
  • Detailed results expire after 24 hours
  • Not a security audit; results may be incomplete

Who it suits

PortScan.com suits server self-checks, CI/CD pipelines and monitoring scripts that need TCP port status. It is intended for the public IP associated with the request, not arbitrary targets.

Verdict

PortScan.com provides a free public-IP port check with API and automation options. Its fixed target and basic-scan scope matter when you need broader security assessment or another host.

Where Specifiction places it

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