Custom Domains

Make every shared link unmistakably yours

Connect your own domain with guided DNS verification, automatic HTTPS, and continuous health checks.

Protected by Nova ShieldMobile friendlyFree to start
Product demonstration
01 · Add your domain
02 · Verify DNS and HTTPS
03 · Monitor continuously
Secure by defaultWorkspace controlledReady to measure
Protected destinations
Reliable redirects
Privacy-conscious measurement
Export and portability

How it works

From destination to measurable result

A clear workflow with security and control built into every step.

  1. 01

    Add your domain

    Receive exact DNS instructions for your hostname.

  2. 02

    Verify DNS and HTTPS

    Routing and certificate readiness are checked before activation.

  3. 03

    Monitor continuously

    DNS drift and certificate problems surface with recovery guidance.

Built for real use

Control, measurement, and continuity

01

Protected destinations

Nova Shield checks destination changes, explains risk signals, and warns or blocks when necessary.

02

Measurable outcomes

Connect clicks to campaigns, verified conversions, and revenue—not just vanity charts.

03

Reliable redirects

Your links keep redirecting when detailed analytics limits are reached or a paid plan is downgraded.

04

Brand and control

Use branded domains, custom QR codes, access rules, campaigns, and workspaces without losing ownership.

Frequently asked questions

Useful answers before you start

Can I use 4ul.ink for free?

Yes. You can create guest links without an account or create a free workspace with dashboard access and core link-management features. Paid plans add higher limits and advanced tools.

Do I need an account?

No. You can create a guest link without registering. Create a free account to save your links, access analytics, and manage link settings from your dashboard.

Can I track guest links?

Guest links are designed for quick, temporary sharing. Create a free workspace to save links and access their analytics.

Start now

Create your first protected link

Start free, keep control, and add advanced capabilities when you need them.

Connect a custom domain