Black Friday saw increased activity on the UK’s Top100 online retailers. We’ve graphed the average page load time of the Top100 and measured how many sites were unresponsive at some point.
*Edit at 12.30am on Monday 30 November, 2015: this article previously stated that websites were ‘down’. This ambiguous terminology was queried by some readers and so ‘unresponsiveness’ is referred to and briefly defined in the updated version. All tests were conducted from a London-based server using a Chrome desktop browser. Our testing via GTmetrix.com does not take into account local caching or ISP caching, nor the customer’s willingness to wait. For more information on what constitutes a timed-out ‘unresponsive’ test, please see GTmetrix’ FAQ.