> ## Documentation Index > Fetch the complete documentation index at: https://help.ples.com/llms.txt > Use this file to discover all available pages before exploring further. # How to add backlinks > Add up to 150 backlink URLs per submission after you choose a domain. Optional tags, contacts, and notes apply to the new rows. Add the pages that should contain a link to a domain you already monitor. Open **Add links** from **Links** (`/links-add`). Add links wizard showing domain, tags, contacts, notes, and URL steps ## Steps Select the destination domain. If you still need to add one, use **Add Domain** on this page. You cannot submit URLs without a domain. Assign tags (max 5 per link). Skip this step if you do not need them yet. See [Tags](/article/tags). Assign contacts so you can see who placed the link. Example: David. See [Contacts](/article/contacts). Add one note (max 300 characters). Ples applies it to every URL in this submission. Enter one URL per line, up to **150** per submission. Click **Import and Finish**. New rows show as **Waiting** until the first 24-hour check. You also need an open **active link** slot and remaining **monthly add** quota (1.1× your plan’s link limit). Deleting a link frees a slot but does not reset monthly adds. See [Plan limits](/article/plan-limits). From **Domains**, unused domains also offer **Add Link**, which opens the same flow with that domain selected. ## What's next? Read URL, status, anchor, GI, DR, DA, LQS, last checked, and more. Dofollow, nofollow, not found, error, and waiting. Checks run about every 24 hours. Create colored tags and assign up to 5 per link. Domain, link, user, and AI caps on trial and paid plans.