About

Performance

These are measurements from real visits, not lab tests. For each number, three out of four visits were at least this good (the 75th percentile, which is how Google judges Core Web Vitals). Our targets are stricter than Google's "good" line.

MetricOur targetPhonesDesktops
LCPLargest Contentful Paint: when the main content appears1000 msMeasuring…Measuring…
INPInteraction to Next Paint: how fast taps and keys respond100 msMeasuring…Measuring…
CLSCumulative Layout Shift: how much the page jumps0.010Measuring…Measuring…
TTFBTime to First Byte: how fast the server answers300 msMeasuring…Measuring…
FCPFirst Contentful Paint: when anything first appears800 msMeasuring…Measuring…

 

What is collected

When a page has finished loading, your browser sends the page group (for example "city pages"), whether you are on a phone or a desktop, and up to five timing numbers. No address, cookie, identifier or full URL is sent or stored, and the numbers are kept only as counts in ranges. If your browser sends Do Not Track or Global Privacy Control, nothing is sent.

A number appears only once there are at least 30 visits behind it. Until then the table says so instead of guessing.

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