Load Time Tracker

Track and aggregate page-load times for selected sites, now with yearly stats.

Overview Load Time Tracker helps developers and QA teams capture every page load—across multiple tabs—then aggregates real-world load times over the last hour, day, week and month. As soon as you hit refresh, you’ll see a live badge timer tick in your toolbar. Once loading completes, that final load time is recorded (with a timestamp) and included in all your sliding-window totals. Historical data older than 30 days auto-prunes so you keep only what matters. Key Features - One-click tracking - Add the current domain with the “＋” button—no extra setup required. - Live badge timer - Watch your toolbar icon badge count up in real time (per tab) while the page loads. - Accurate final measurements - We use the Performance API (with a timestamp fallback) for millisecond-precision in-flight and completed load times. - Sliding-window aggregates - See total load time over the current hour, day, week and month—automatically reset as each window rolls over. - Per-site insights - Global totals - A “Total” line shows combined H/D/W/M across all your tracked sites. - Favicon scraping - We pull each site’s real favicon (via your page’s <link rel="icon">) for easy identification. - Automatic pruning - Old logs (over 30 days) and in-flight records are cleaned up without you lifting a finger. - Lightweight & privacy-first - All data is stored locally in Chrome Storage. No external servers, no third-party analytics. Why You’ll Love It - Instant feedback on performance changes as you deploy or tweak code. - Live insights let you catch regressions mid-load—no need to guess if that new asset blocking slowed you down. - Rich history across multiple timeframes shows long-term trends without manual spreadsheet exports. - Stay focused: everything lives in your browser, under your control. Getting Started - Install Load Time Tracker from the Chrome Web Store. - Click the toolbar icon → ＋ to begin tracking the current site. - Refresh your tracked pages—watch the live badge count and popup stats tick up! - Remove any site with the “×” to clear its data instantly. Optimize your development—and keep your build pipeline humming—by installing Load Time Tracker today.