How to add custom field for a link to website

I am currently exploring ways to enhance the credibility and authenticity of product reviews on my WooCommerce site. Specifically, I’m interested in displaying external verification links (e.g., links to eBay) alongside reviews to indicate their legitimacy.

I am seeking a solution that allows an admin to attach a link to a review, which points to an external site where the review originates or is cross-verified. This feature would significantly enhance trust among our customers by providing a direct reference to the original source of the review.

Here are my specific requirements:

1. Admin-Only Functionality: Only administrators should have the ability to add these external links to the reviews. This ensures control over the content and prevents misuse.
2. Integration with Existing Reviews: The solution should seamlessly integrate with our current review system in WooCommerce. It should not disrupt the existing review submission process for customers.
3. Visibility on the Product Page: The external link should be displayed in a subtle yet noticeable manner alongside each review it is associated with. Ideally, it could be a small icon or text link that says “Verified” or similar.
4. Customizable Link Placement: The ability to determine where the link appears in relation to the review content (e.g., below the reviewer’s name or at the end of the review text).
5. Ease of Link Addition: A straightforward method for the admin to add these links to reviews, whether through the WordPress dashboard, a custom field in the review editor, or another convenient method.
6. Compatibility and Performance: The implementation should not significantly impact the website’s performance and must be compatible with the latest version of WooCommerce and WordPress.

I understand that this may require custom development or the use of additional plugins. I am open to suggestions on the best way to implement this feature, whether through a custom code snippet, a plugin recommendation, or a hook that we can utilize.

Could you please advise on the feasibility of this request and the best way to proceed? If this requires custom development, could you provide guidance or refer me to relevant resources or services?

Thank you for your time and assistance. I look forward to your response and any suggestions you might have.

Best regards,