However, despite the report saying that the site was able to cope with 50,000 concurrent users, on 2 December the tech team behind the site decided to launch a queuing feature with just 35,000 concurrent users.
"Looking at the report, it seems that they're just looking at the wrong end - they are just looking at data they capture in their data centre," said Grabner.
"They look at things coming into the servers, not at the end user. If you look at website performance, you need to start at the browser, where the end user is."
He suggested that the government's assessment was limited in its scope.
"There's a lot of stuff between the data centre and the browser. There's network connectivity, CDN (Content Delivery Network), third party components. If they are not looking at those, they're not looking at the full picture," Grabner said.
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