Big Australian sale days break sites because thousands of people arrive in the same minute, not because the store is badly built. You prepare by testing at that load, caching what you can, and having a way to add capacity before the sale starts.
The first Click Frenzy sale began on 20 November 2012. The Register reported on 21 November that shoppers could not reach the site when the sale opened or for many hours afterwards, and that retailer sites taking part also struggled. The Register's commentary pointed at the Magento software and the host, UltraServe, while the promoter said the huge audience showed the concept worked and that its technical staff were looking into the wave of traffic.
SmartCompany's analysis of the same day did not claim to know the cause. Its author wrote that something was clearly set up badly in the software or the hosting platform, and drew lessons for small business that are still sound: test before launch, use hosting that can add capacity for a peak, and consider paying for short term capacity rather than idle capacity all year. Traffic figures quoted at the time are not repeated here.
Inside Retail reported in November 2018 that the site crashed briefly on the first day of the sale. Director Grant Arnott said he believed the cause was an extreme load of subscribers logging in to use a new feature, that the feature had been well tested, and that the site struggled for about 15 minutes at the start before running smoothly.
The lesson is not that big events always fail. It is that a spike hits the part of your store that does something personal for each visitor (logins, carts, checkout) and that a feature that tested well at normal traffic can still struggle when everyone uses it at once.
Three events matter to most local stores: end of financial year sales running up to 30 June, Click Frenzy events, and Boxing Day. Check Click Frenzy's own event calendar for current dates rather than relying on a blog post. Put your own prep dates in the diary working back from the first day of each sale, not from the day you decide to discount.
Run a load test against a staging copy, or at minimum run through the whole purchase path while an uptime monitor and your browser's network tab are open. Test as a logged out visitor and as a logged in customer, since cached pages and checkout behave differently. Add products to the cart, apply a discount code, try each payment method in test mode, and confirm order emails arrive.
Our website uptime monitoring guide explains how to get alerts the moment the store stops responding, which matters when the sale email has just gone to your list. Plan who is watching it, and what you will do if it fails.
Cache everything that can be cached, and keep cart and checkout exempt as they must be. Our WordPress caching guide and the WooCommerce speed optimisation guide cover the main settings. Reduce what each product page loads: large images, unnecessary plugins and third party scripts all cost time.
Freeze changes. No theme updates, plugin swaps or new features in the final week unless they have been tested on staging, because the 2018 report is a reminder that new features can add risk. Take a full backup before the sale begins, using the steps in our WordPress backup guide.
Finally, decide your cap. If your stock or fulfilment can only handle a few hundred orders, you do not need a store that serves a million visitors, only one that fails gracefully and says so.
Shared hosting shares CPU and memory between sites, so a sudden spike can hit a limit. If your store has already shown slow patches on a normal busy day, read signs you have outgrown shared hosting before a sale, not after it. Options include moving to a VPS or cloud server where resources are dedicated to you.
HostBible hosting runs on LiteSpeed servers with free CDN integration. No host can promise how a server will behave under your particular traffic, which is why a test beforehand matters more than any plan name. Ask your host about its limits and upgrade path in writing.
If your store needs a better home before the next sale, our team migrates it for free and you switch over only once the copy has been tested.
See website migration