Single-Run Lab Audits of 96 Local Business Sites: What the Numbers Actually Say

<p>In March 2026 I ran a PageSpeed Insights API audit on 96 Ottawa-area service business websites: plumbers, electricians, HVAC companies, cleaners, contractors. I re-ran the same panel on November 3, 2026. This post covers what I measured, how, what I found, and where the method falls short.</p> <h2> What I measured </h2> <p>I built the list from Ottawa-area business directory listings across 16

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