What is LCP by shopping cart
LCP by shopping cart shows Largest Contentful Paint (LCP) metric based on whether the user has items in their shopping cart or not during a page visit.
This lens is especially important for ecommerce sites, where the presence of cart data can affect layout, rendering, personalization, and third-party logic.
Healthy LCP by shopping cart sample
Should you worry
A healthy lens looks green on both sides - with and without cart items. That means:
Cart status isn’t affecting your load time.
Personalization logic and cart-related banners or components are loading efficiently.
Even returning users with active carts aren’t experiencing a degraded experience.
This is ideal, as shoppers who are closer to purchasing should never be penalized with slower pages.
Unhealthy LCP by shopping cart sample
If “With items in cart” LCP is slower, here’s what could be going on:
Cart state requires additional client-side rendering, especially for cart previews, totals, or upsell banners.
Some platforms defer rendering until user session data (like cart) is retrieved, which adds latency.
Third-party services tied to personalization (e.g. recommendations or retargeting) may load conditionally when a cart is active.
If “without items in cart” is slower, it could suggest problems in your baseline experience - which may affect first-time users and bounce rates.
Either case, a discrepancy here can point to missed optimization opportunities at key points in the buying journey.
Resolving unhealthy LCP by shopping cart
Go-to action plan to resolve an unhealthy LCP by shopping cart:
Ask Uxi to analyze your LCP by shopping cart values and suggest improvements.
Use Filters to isolate high-traffic slow experiences for cart-active users and correlate with layout complexity or third-party scripts.
Simulate LCP of the suspected lens to see if fixing it will resolve the slow LCP by shopping cart. If yes, this is where the resolution focus should be.
Use an automated LCP optimization tool like Navigation AI to improve your LCP by shopping cart values.
Once you’ve improved LCP, set an alert to be the first to know if it starts worsening again.
Try it yourself
Discover how your website performs with real user data.