To generate a link to any report, click on Reports from the left side menu.
Then, select the report you'd like to generate a link for.
Next, click the "Export" button at the top right of the screen, and select the "Share Link" option in the drop-down menu.
You'll be prompted to select the exact date range you'd like the report link to cover. Choose your desired date range, then click "Create Link".
Your link will appear right away. Click the "Copy Link" button to copy that link to your clipboard.
You can then share the link with anyone you like, and they'll instantly have read-only access to that report.
All of the links you generate will be permanent, and they'll always show the exact date range you selected when generating the link.
The URL for each link is based on your custom subdomain or custom domain - see here for more information on this.