Loading a Web page is more resource intensive than ever (see the HTTP Archive’s page size statistics), and loading all of those assets efficiently is difficult, because HTTP practically only allows one outstanding request per TCP connection.
In the past, browsers have used multiple TCP connections to issue parallel requests. However, there are limits to this; if too many connections are used, it’s both counter-productive (TCP congestion control is effectively negated, leading to congestion events that hurt performance and the network), and it’s fundamentally unfair (because browsers are taking more than their share of network resources).
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Magento 188.8.131.52 also added these two new features. If you want to hide them to your customer's account manager edit these two files: app/design/frontend/yourtheme/default/layout/sales/billing_agreement.xml app/design/frontend/yourtheme/default/layout/sales/recurring_profile.xml...