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Black Friday: Update 1 at midnight

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For the latest updates, see our Black Friday live blog.

Site Robustness

Tonight we are wondering whether retailers have anything to worry about: landing page tests show entirely normal results. Perhaps the hard work of building site robustness throughout the year has paid off, or perhaps this is merely the calm before the storm.

Time waits for no-one

The key metric we’ll be following tonight for Top500 retailers, including an hourly assessment of the Top100 UK retailers, is html load time. It’s something that suffers when large numbers of people try to access a site and slower-than-usual load times are likely to drive customers elsewhere.

Currently, the landing page leaderboard is:


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