Domains

Shared hostname — lnk.linksaff.app

Free and ready to use the moment you sign up. Every account has access to lnk.linksaff.app. Slugs on this hostname are unique across all Linksaff users — the first person to create /promo owns it.

Use it for testing and internal campaigns. Avoid it for high-volume cold email — the reputation of this hostname is shared across all users.

Bring your own domain (BYOD)

Connect a domain you already own — like go.mybrand.com. Your short links will use that domain instead of the shared one.

Why it matters:

• Email deliverability. Your domain reputation is yours alone — not tied to other senders.
• Ad approval. Platforms like Meta and Google review outbound domains. A domain you control and warm up yourself has a clean history.
• Brand consistency. Your audience sees your domain, not a generic shortener.

Domain status

• Pending — you added the domain, DNS hasn't been verified yet.
• Verifying — Linksaff is checking your DNS settings and activating the domain.
• Active — fully live and serving traffic.
• Failed — DNS didn't validate. The dashboard shows what's missing.

Linksaff checks domain status automatically. You can also delete and re-add a domain if it gets stuck.

Slug uniqueness is per domain

You can have mybrand.com/promo and go.partner.com/promo at the same time — they're separate domains, so the slug doesn't conflict.