[WEEKLY TECHNICAL REPORT - W18 / 2026]
costco.com
26
[TECHNICAL AUDIT]
CRITICAL FAILURE: Performance below minimum usability threshold. Digital infrastructure shows critical visual rendering and code efficiency bottlenecks.
TTFB (Server Latency) 87ms
LCP (Visual Loading) 31981ms
Total Payload 7.30 MB
Network Requests 429
ENVIRONMENTAL IMPACT
0.292g CO2 per visit
The inefficiency of this page is such that it takes only 18 visits to consume the energy required for one full smartphone charge.
Loading these bits is equivalent to keeping a LED light bulb on for 3 minutes.
CORE DIAGNOSTICS
First Contentful Paint (FCP) 8082ms
Total Blocking Time (TBT) 2224ms
Cumulative Layout Shift (CLS) 0.069