Continuous Core Web Vitals monitoring. Real Chrome-user field data and Lighthouse lab scores, mobile and desktop, re-checked every day. Catch regressions before they cost you, and see how you stack up against your competitors.
Mobile is holding Acme Store back. Largest Contentful Paint needs work. Desktop already passes, so the gap is mobile-specific.
// built on the data Google ranks you on
Phones and desktops perform worlds apart. PerfHawk always shows both, side by side on the same scale, so you never ship a “fix” that only helps the device you happened to test on.
PerfHawk reads Core Web Vitals straight from the Chrome UX Report, the same real-world data Google ranks on. You’re optimizing for what your visitors actually feel, not a synthetic test on a fast office connection.
Add a page once and PerfHawk re-tests it every day, building a 90-day history of lab scores and real-user vitals. You watch the trend, not just today’s number, so slow drift never sneaks up on you.
A deploy slowed your checkout? PerfHawk catches the regression, points at the exact page, and shows the before-and-after, so you fix it the same day, not after the traffic drops.
Every check comes with Lighthouse’s own fix-it list, ranked by the seconds you’d save, in plain language. Reduce unused JavaScript, defer a render-blocking script, ship lighter images, and each one opens the exact files to change. In English and French.
PerfHawk reads your Lighthouse report and writes a short, ranked plan in plain language: the exact file, the change to make, and what it’ll save. It picks up on your stack too, so the advice fits how your site is actually built.
Your mobile LCP is the 312 KB hero image, loaded late and behind render-blocking CSS.
Convert the hero to AVIF (around 60 KB), add fetchpriority="high", and preload it.
Hold GTM and the TikTok pixel until the first interaction, or move them off the main thread.
Ship above-the-fold CSS in the head and load the rest after the page paints.
PerfHawk finds your real search competitors and benchmarks their Core Web Vitals against yours, lab and field, mobile and desktop. Stop wondering whether “slow” is just the web, or just you.
Homepages are easy. Category, product and checkout pages are where speed actually costs you sales. PerfHawk finds your most important pages by search traffic and watches every one.
Plain-language highlights up top, every raw metric one click down. Business and engineering finally look at the same screen.
Add your site, pick the pages that matter, and let PerfHawk track them every day, lab and field, mobile and desktop, with an alert the moment they move. Free to start, no credit card.
Start monitoring for free