The hook
A page can pass a quick desktop smoke test and still lose users on mobile because the payload is too heavy or the page waits on too many vendors.
Mar a dh'obraicheas e
FixWeb reads browser resource timing after render and groups resources by initiator type, transfer size, and first-party vs third-party origin.
The blast radius
Heavy scripts and third-party tags commonly degrade LCP and INP, while excess fonts and images add bandwidth and layout work.
// mar a nì fixweb deuchainn air
Mar a nì FixWeb deuchainn air
The rendered crawl records approximate transfer bytes plus script, stylesheet, image, font, and third-party counts for each page.
Ironclad defenses
Set performance budgets, remove unused vendors, split and defer JavaScript, compress assets, cache immutable files, and optimize the likely LCP image.