Add a Custom Domain

A custom domain lets you share documents from your own address - docs.yourcompany.com instead of app.paperlink.online. PaperLink registers the domain through Vercel and verifies your DNS configuration.

Steps

Open Settings from the sidebar.
Go to Team > Branded Domains.
Click Add Domain.
Enter your domain name (for example, docs.yourcompany.com). You can paste a full URL - PaperLink extracts the domain automatically.
Click the submit button.

PaperLink registers the domain and shows it with Pending verification status. You now need to configure DNS records at your domain registrar.

Custom domains require the Business plan or higher. The number of domains you can add depends on your plan.

Configure DNS Records

After adding a domain, PaperLink shows the DNS records you need to create at your domain registrar (Cloudflare, Namecheap, GoDaddy, etc.).

CNAME Record

Field	Value
Type	CNAME
Name	Your subdomain (e.g., `docs`)
Target	`cname.vercel-dns.com`

TXT Record

Field	Value
Type	TXT
Name	Your domain (e.g., `docs.yourcompany.com`)
Value	The verification token shown in PaperLink

Add both records at your registrar. DNS changes can take up to 48 hours to propagate, though most providers update within minutes.

Verify the Domain

Once the DNS records are in place, click Verify next to the domain. PaperLink checks your DNS configuration and updates the status.

Verification Statuses

Status	Meaning
Pending verification	Domain added, waiting for DNS configuration
Verified	DNS is correct, domain is active
Invalid DNS configuration	DNS records are missing or misconfigured
DNS conflict detected	Domain points to another Vercel project

If the status is Invalid, double-check that both the CNAME and TXT records match the values shown in PaperLink. If you see DNS conflict, the domain is already registered with a different Vercel project and must be removed there first.

You can click Verify multiple times. Each click re-checks the current DNS state - useful when you have just updated your records and want to confirm they propagated.

Remove a Domain

Click Remove next to any domain and confirm the prompt. PaperLink deletes the domain registration. Sharing links that used this domain fall back to the default app.paperlink.online address.

Domain Name Rules

Lowercase letters, numbers, hyphens, and dots only.
Maximum 253 characters total, 63 characters per segment.
Must have a valid top-level domain (.com, .co, .org, etc.).
Subdomains of paperlink.online are reserved and cannot be used.
Each domain must be globally unique across all PaperLink teams.

Permissions

Only Admin and Owner roles can add, verify, and remove custom domains. All team members can view the list of configured domains.

Create a Sharing Link - sharing links can use your custom domain
Custom URL Slugs for Shared Links - pair a custom domain with clean URL slugs

Add a Custom Domain