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Making websites measurably faster

Everything we learn auditing and repairing sites for e-commerce brands and agencies — written so you can act on it today, with or without us.

Most read · Performance

Why Is My Website Slow? The 9 Real Causes — and What Each One Costs You

A slow site is almost never one big problem. Here are the 9 causes we find in real audits, how much load time each adds, and the order to fix them in.

5
Median number of separate causes behind a slow site in our audits — not one big problem
SEO

Core Web Vitals, Explained Without the Jargon

LCP, INP and CLS in plain English: what each one measures, what a failing score costs you in revenue, and exactly how to fix each without a developer.

Stop guessing which one is your problem

Run your URL through the free Softshelf audit. Google's own performance data, your SEO and accessibility scores, and the specific elements costing you customers — in about 30 seconds.