HTTPS Viewer

HTTPS Viewer is a developer-focused inspection tool that lets engineers probe a target URL over HTTPS, capturing connection details, redirects, and response metadata without executing client-side code. It solves problems when debugging sign-in flows by providing a clean view of status codes, headers, and TLS attributes that influence access control, caching, and security posture. Users include backend engineers, SREs, QA, security analysts, and cloud engineers working with Civ Cloud JP sign-in endpoints. The tool runs in a controlled, stateless manner, avoiding side effects or credential exposure, and emphasizes deterministic HTTP semantics rather than browser behavior.
How it works conceptually: the user supplies a URL and optional method, headers, and body; the tool issues a single HTTP(S) request, records DNS, TCP, TLS timings, follows redirects if enabled, and returns a structured snapshot of the request and response. It highlights TLS version, cipher, and certificate validity, enabling quick assessment of encryption strength and cert trust. Outputs are machine-friendly and human-readable for rapid triage.
Unique value and use cases: precise isolation of sign-in issues, detection of redirect loops, validation of header-based auth flows, and quick security checks during cloud deployments. Distinguishing features include integrated TLS certificate details, timing breakdown, and a deterministic, no-JavaScript environment that mirrors server-side behavior. Typical workflows include validating a CIV Cloud JP sign-in endpoint, verifying that redirects end at the expected final URL, and confirming that headers are forwarded as configured.
Core features include: URL input, method, headers, body, timeout, redirect policy; comprehensive outputs: status, final URL, headers, TLS data, and timing metrics; error classification and edge-case handling.