Survivorship Bias in Web Performance
Why your analytics shows your site as faster than it is, and why FCP is a key metric to optimise for.
Table of ContentsIntroduction What are Beacons? Beaconing StagesSending Data at Startup Gathering Data through the Page Load Incrementally Gathering Telemetry throughout a Page's Lifetime Gathering Data up to the End of the Page "Whenever"How Many Beacons?A Single Beacon Multiple B
Why your analytics shows your site as faster than it is, and why FCP is a key metric to optimise for.