PortScan.com review
A free hosted TCP scanner with deep scans, service detection, and API automation.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
PortScan.com is a cloud-based web and API tool for checking the public IP address of the device making the request. It is designed for people validating their own internet-facing services, firewall rules, and port exposure. The fast scan checks 32 common TCP ports, while the deep scan checks all 65,535 TCP ports. Results report open, closed, and filtered states, with service version detection for open ports. IPv4 and IPv6 support makes it suitable for basic host-level checks across both address types.
Automation is the product’s strongest differentiator. Its REST-style polling API can support scripts, CI/CD pipelines, monitoring jobs, and server hardening checks. Server-Sent Events provide a streaming API, while webhook callbacks notify external systems when a scan completes or fails. MCP server integration extends the workflow to MCP clients. The API is unauthenticated, and JSON is the listed export format, so teams should account for that operating model when connecting scans to automated processes.
PortScan.com keeps its scope narrow: scans target only the requesting device’s public IP, and arbitrary target scanning is not supported. It scans TCP ports rather than UDP, and its published scope does not include scheduled scans or OS detection. That makes it a practical choice for free, on-demand exposure checks and lightweight automation around a host you control. Organizations needing broader target selection, recurring scan scheduling, UDP coverage, or operating-system fingerprinting should choose a port scanner with those capabilities instead.
PortScan.com pros and cons
- Where it wins
- Scans 32 common ports or all 65,535 TCP ports
- Detects service versions on open ports
- Offers polling, streaming, webhooks, and MCP integration
- Where it doesn't
- Scans only the requesting device’s public IP
- Supports TCP scanning, not UDP
- Does not provide scheduled scans or OS detection
PortScan.com fact sheet, pricing and score →
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