To help you solve this, could you share or if there is a specific website they are associated with?

They might be unique identifiers for a specific hosting service (like Mega, Google Drive, or YouTube). If you found these on a forum, they are often intended to be appended to a specific base URL provided in that community's "Key" or "Sticky" post.

Because these specific strings do not return results in standard search indexes, "putting together the piece" likely refers to one of the following scenarios:

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