A landing page is taking a significant time to load.
The load time of a landing page is generally due to resources that have a large file size or due to third-party scripts. This can be identified by using tools like https://tools.pingdom.com/ that breaks down the loading time of individual resources and scripts within a landing page.
Another way to inspect the loading time of resources and scripts within a landing page is using the network feature of the developer tools in Google Chrome, Firefox, Safari or any other web browser:
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