Connection tester

A lightweight tool to evaluate endpoint reachability and network latency for developers, QA engineers, and IT admins in production and staging.

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About This Tool

Purpose-built connectivity tester that validates reachability and performance of network endpoints using ICMP, TCP, and HTTP checks. It collects latency, success rate, and error reasons to help engineers triage outages and verify configurations.

Conceptually, inputs define the target, protocol, port, and test method; the tool executes probes and aggregates timing data into summary statistics for dashboards and alerts. Outputs share a unified schema that works across microservices and external endpoints.

Unique value lies in combining multiple test methods with consistent metrics, configurable timeouts, and export-ready results. This enables rapid root-cause analysis of DNS issues, firewall blocks, or service misconfigurations, and it supports CI pipelines and on-call diagnostics. Core features include per-probe timing, failure categorization, and JSON/CSV exports for integration with monitoring stacks.

Use cases span pre-release validation, post-change verification, and production incident checks for developers, SREs, and IT teams seeking lightweight yet informative connectivity insights.

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How to Use

Provide inputs: specify target host or URL, port, protocol, and timeout.
Choose test method: ICMP, TCP, or HTTP(S).
Configure optional parameters: number_of_probes, use_tls, and parallel runs.
Run test: execute probes and collect results.
Review outputs: check reachable, latency_ms, and packet_loss_percent; review per-probe breakdown if available.
Optional: export results as JSON or CSV.

Frequently Asked Questions

Find Quick Answers

What does this tool test?

It verifies network connectivity to a target endpoint using ICMP, TCP, or HTTP checks and reports latency, success rate, and reachability. It supports multiple probes and provides a unified result schema for quick interpretation.

What do the outputs mean?

reachable indicates whether probes succeeded; latency_ms is the average round-trip time per probe; packet_loss_percent shows the share of probes that failed; last_status provides the final probe status for quick reference.

How should I interpret high latency or packet loss?

High latency suggests congested paths or slow endpoints; packet loss indicates dropped packets or blocking. Investigate DNS resolution, firewall rules, network hops, and endpoint health; consider adjusting timeouts or test method.

Can I test TLS/HTTPS endpoints?

Yes, HTTP mode can perform TLS verification, report handshake times, and flag certificate or TLS issues when verification is enabled, helping validate secure endpoints in QA and production.

Need to run multiple calculations?

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