How to copy a link from another site to your own in a block?

Question

PHP

There is a site number one, it does NOT belong to us. This is a customer site. This site is a stupid background and a banner is placed somewhere. The banner has a dynamic link, that is, it is generated automatically when the user enters the page!
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We own site number two, which looks similar to site number 1, i.e. the customer's site. Accordingly, we achieve this with the help of the iframe
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Our task. 1) upload the customer's site to ours using a frame
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2) at the moment when the iPhone loads, we must see the link itself under the banner and pick it up! (strictly within the session for one specific visitor)
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We insert a link to our site (site number 2) in the area in which the autoclick parameter is set. Our site clicks on the button
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By area to be precise
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The complete concept in short. A visitor came to our site, the site will load, including the iframe and the auto-click parameter, which should occur, for example, 10 seconds after entering. Within 10 seconds, we substitute in the area where the link will be clicked and there is a transition, as it were, along the banner
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Is it possible to implement this?

Answer 1

Isn't it easier to parse the link that No. 1 will show when entering?