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eCommerce Performance Monitor

John Lewis

www.johnlewis.com· UK
Department StoresBazaarVoice

Defects

D
Score 45 / 100 · 7 defects (1 critical) · 2026-11-06
Full defect card →

Origin (CRuX Field Data)

DeviceP/FLCPINPCLSRank
desktopPASS1.5s91ms0.03-
mobilePASS1.5s152ms0.00-

mobile Page Data

PageP/FLCPINPCLSACCSEOBPPERF
homepagePASS1.7s166ms0.001008596
65
plpFAIL1.8s230ms0.0510092100
67
pdpPASS1.5s152ms0.00946796
58

desktop Page Data

PageP/FLCPINPCLSACCSEOBPPERF
homepagePASS1.6s89ms0.001008596
79
plpFAIL1.7s129ms0.1310092100
87
pdpPASS1.5s91ms0.03946796
89

CWV History (Last 12 Weeks)

mobile

LCP

INP

CLS

desktop

LCP

INP

CLS