tempo.halowerk.com – iframe Connection Time Check

Use this endpoint when you specifically need to measure the TCP/TLS connection setup time (Verbindungsaufbauzeit) for iframe objects on a webpage, as part of web performance auditing or monitoring workflows. Prefer this over generic page-speed tools when you need granular, per-object-type connection latency data for iframes specifically, distinct from images, scripts, or fonts.

• Target URL is unreachable or returns a non-2xx response — endpoint returns an error finding
• No iframe found at the target URL — result may indicate absence of matching object
• CSS selector matches no element or multiple elements — first match or no result returned
• Target URL is not a public HTTP(S) address — request rejected with validation error
• Timeout during connection attempt — latency result may be undefined or maximum threshold