Thirty-something campaigns a month, every link going out under some default shortener domain nobody recognizes, and your brand is invisible in the URL. Clicks happen. But nobody remembers where they came from — not your audience, not the sales rep squinting at a spreadsheet full of random alphanumeric slugs. That domain in the URL is dead weight. Worse, it might actually be hurting you.
Custom domains fix this. We built branded short links with custom domains into Acturity specifically because "just buy a domain and point it" is advice that skips everything that actually matters: which domain to pick, how many you need, what DNS records to create, and how to avoid painting yourself into a corner six months from now.
So here's how we think about it.
The Domain Matters More Than the Slug
Most people obsess over the path — the /spring-sale or /webinar-signup bit — and barely glance at the domain. That's backwards. The domain is what people see first. It's what shows up in link previews, SMS messages, printed flyers.
A good custom domain does a few things at once:
- Tells the reader who sent the link before they tap on it
- Keeps the full URL tight enough for SMS, push notifications, packaging labels
- Builds familiarity over time — people start recognizing your link domain the way they recognize your logo
Compare go.acme.co/demo to some random string on a generic shortener. One looks intentional. The other looks like something a phishing bot would generate. And as of early 2026, spam filters on email and messaging platforms are getting more aggressive about flagging links from domains they don't trust.
Choosing a Domain — Where Most Teams Get It Wrong
Someone in marketing says "let's grab go.ourbrand.com" and everyone nods. That might work fine. Or it might box you in within a quarter.
Think about what you actually need the domain for before you register anything.
Single-product companies can usually get away with one domain. Something like go.yourcompany.com or link.yourcompany.com. Keep it obvious, keep it boring. Boring is fine here — nobody needs a clever link domain.
Multi-brand companies need separate domains per brand. If you're running campaigns across three product lines, you don't want them all crammed under one short link domain. That muddies attribution and confuses the audience. We see this a lot with portfolio companies: each brand gets its own domain, and each one should look like it belongs to that brand.
Agencies and white-label setups are a different situation entirely. You might need a new domain for every client. Manageable if you plan for it — but you need a platform that actually supports multiple custom domains without making you file a support ticket for each one. We designed our domain management to handle exactly this: add a domain, verify DNS, get SSL provisioned, done.
A few practical notes on the name itself:
- Shorter is better. Every character counts when you're squeezing a URL into a 160-character SMS
- Avoid hyphens — they look wrong in URLs and people mistype them constantly
.link,.co, and.ioTLDs work well because they're short and look intentional, not like you couldn't afford the.com- Subdomains of your main domain (like
go.yourbrand.com) cost nothing to set up and they're instantly credible, since they inherit your root domain's reputation
DNS Setup — Ten Minutes, Not Ten Hours
Here's the part that scares people off, even though it really shouldn't.
When you set up a custom domain for your short links, you're just creating a DNS record that says "when someone hits this domain, send them to Acturity's servers." That's it. We handle the redirect logic from there.
For most setups, you need one of two things:
- A CNAME record pointing your custom domain to our target domain. Standard approach for subdomains like
go.yourbrand.com - An A record pointing to specific IP addresses. This is for apex domains —
yourbrand.linkwithout any subdomain — where CNAME records aren't always supported
The CNAME route is almost always simpler. If you can use a subdomain, use a subdomain. Apex domain setups work but come with extra DNS quirks depending on your registrar, and they can conflict with other records on the same zone.
After propagation — usually a few minutes, occasionally up to 48 hours with slower providers — we automatically provision an SSL certificate for the domain. No SSL means browsers show a security warning. That kills click-through rates instantly.
One thing people forget: if you're sending links in email, your custom domain's reputation matters. A brand-new domain with zero sending history can trip spam filters. Let a new domain age for a couple of weeks, and start with low volume before blasting it to a 50,000-person list.
How Many Domains Do You Actually Need
Depends on your scale, but here's a rough framework.
Most teams between 5 and 50 people do fine with one or two custom domains. One for marketing links, maybe another for internal or operational stuff. That covers it.
Where it gets more involved: if you're running campaigns across markets in different countries, you might want country-specific domains or subdomains. go.yourbrand.de for German campaigns, go.yourbrand.fr for French ones. It's not just branding — some audiences are genuinely more likely to click links that look local. Nine times out of ten, a localized domain outperforms a generic .com in non-English-speaking markets.
Whatever structure you pick, keep a spreadsheet mapping each domain to its purpose, who manages DNS, and when the registration expires. Domains expiring mid-campaign is an embarrassing problem that happens way more often than anyone admits.
Also worth thinking about how your domain strategy interacts with cross-channel campaign tracking. If every team uses a different domain without coordination, your analytics become fiction pretty fast.
Getting More Out of Your Custom Domain
A custom domain is the foundation. The real value stacks up when you combine it with other link features.
Slug conventions matter almost as much as the domain itself. If marketing uses go.acme.co/spring-sale and sales uses go.acme.co/ss26 for the same campaign, nobody notices the problem until the reporting call. Agree on a naming pattern — /campaign-name or /product-quarter — and actually stick to it. We wrote more about this in our piece on why branded links earn more clicks.
Routing rules per domain let you do clever things without managing separate links for every scenario. You could set up your US domain to route differently than your EU domain based on geography, or send mobile users to an app store while desktop users hit a landing page. We cover the setup in detail in our geo and device targeting guide.
QR codes inherit your domain. People overlook this — when you generate a trackable QR code that resolves through your custom domain, the scanned URL looks branded in the browser bar. For printed materials like packaging or event signage, that matters a lot more than most people think.
Bulk import for large-scale migrations. If you're sitting on hundreds or thousands of links that need to move to your new custom domain, you don't have to recreate them one by one. Our bulk import feature lets you upload a CSV of destination URLs and have Acturity mass-create branded short links under your custom domain in one shot. We built this because we kept hearing from teams who wanted to switch but couldn't stomach the manual work of recreating their entire link library. Upload, map your columns, and you've got a few hundred branded links in under a minute.
Moving Off a Generic Shortener Domain
Switching domains mid-stream is annoying. Doable, but annoying. Old links on the old domain keep working as long as that domain stays active. You can't retroactively rebrand them though. Every link you've shared under the old domain stays there permanently.
The practical approach: pick a cutoff date. Everything new from that point forward goes out on your custom domain. Old links stay where they are. Don't try to redirect the old domain to the new one at the root level — that breaks every existing link path underneath it.
If you're running links inside email sequences or automation workflows, audit those first. Nothing worse than migrating your link domain and then discovering six months later that a drip campaign is still firing the old domain, which you've since let expire.
For teams who care about tracking continuity, our analytics dashboard lets you filter by domain. That makes the transition period manageable — old-domain and new-domain performance sitting side by side, no guesswork.
Expensive Mistakes We Keep Seeing
Domains that are too clever. lnk.acme.com seems fun until people try typing link.acme.com instead. Keep it obvious.
Forgetting about SSL renewal. We handle this automatically, but if you're stacking a CDN or WAF in front of your short link domain, make sure those certificates auto-renew too. An expired cert means every link you've ever shared starts throwing security warnings overnight.
No root domain fallback. If someone visits go.yourbrand.com without a path, what happens? A 404? A blank page? Point the root to your homepage or a relevant landing page. Small detail, real difference.
Using your primary domain as your link domain. Your main website domain (yourbrand.com) shouldn't double as your short link domain. Short links get shared everywhere — social media, forums, SMS — and some of those contexts carry higher spam risk. Keep your primary domain clean by using a separate subdomain or dedicated domain for links. We recommend checking our link health monitoring feature to catch domain-level issues before your audience does.
Skipping the security conversation. If you're an enterprise team, your custom domains need to fit into your broader security and compliance setup. Audit logs, access controls, SSO — the domain is just one piece of a bigger picture.
FAQ
Can I use multiple custom domains on one Acturity account?
Yes. Our professional and enterprise plans support multiple custom domains per workspace. You assign each domain to specific workspaces or campaigns, and we handle SSL provisioning for each one automatically.
Do custom domains slow down redirects?
Barely. The DNS lookup for your custom domain adds maybe 10-30ms compared to our default domain. Not something any human would notice. It gets slower only if you stack a CDN, a WAF, and us all in the redirect chain — each hop adds latency.
Subdomain or separate domain — which should I pick?
Subdomains are easier and immediately associated with your brand. Right choice for most teams. A separate domain makes sense when you need the URL to be extremely short (subdomains eat characters) or when you want full reputation separation from your main domain. If you're just getting started, go subdomain. You can always add a dedicated domain later.
Start With One, Expand When It Makes Sense
You don't need your entire domain strategy mapped out before creating your first branded link. Start with one domain — probably go.yourbrand.com — get comfortable with the workflow, and expand from there.
We built Acturity's short links and custom domains to handle DNS verification, SSL provisioning, and multi-domain management so you can spend your time on strategy instead of infrastructure. And when your link program grows into A/B testing, routing rules, or campaign-level tracking, the domain setup you put in place now carries all of that without starting over.
Pick a domain. Set up the DNS record. Start building links that actually look like yours.
