According to our graphs performance metrics including first paint and last visual change took a hit around 9th, corresponding with our main menu rollout.
On 14th a further degradation in performance can also be seen on mobile but also on desktop
Take a closer look at the webpagetest runs for this period and determine some theories around what caused the problem. Chat to the performance team to see if they can help identify any further issues and/or confirm any theories we might glean.
Questions to answer
- Was the first spike likely due to the changes to the main menu in T225213?
- Did a banner campaign contribute to the second spike?
- Is there anything we can do to restore the metrics/previous benchmark?