Sending domain generator
Enter your brand and get sibling domains for cold email that are free to register now, so outreach never runs on your main domain.
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What the sending domain generator does
Enter your brand or your main domain. The generator suggests about 20 sending domains close to your brand, checks each one's availability through RDAP and shows the price. The patterns are the ones outbound teams use: a prefix like get or try, a suffix like hq, or the same name on another TLD.
Every suggestion follows two rules: no hyphen chains or number padding, and nothing that copies another company's name or trademark.
How to pick from the list
- Prefer .com, then the TLD your main brand uses. Recipients trust what they recognize.
- Keep it obviously yours. getacme.com reads as Acme. acme-sales-team-mail.net reads as spam.
- Avoid cheap TLDs that turn up often in abuse data. Spamhaus ranks the most abused TLDs in its regular domain reputation reports.
- Skip names a reader could mistake for a customer's or partner's domain.
Availability comes from RDAP, the protocol that replaced WHOIS for generic TLDs. A name the registry has no record of is usually free to register, though premium names can cost more at checkout.
Setting up the new domains
Redirect each domain's website to your main site, so a prospect who types it in lands somewhere real. Publish SPF, DKIM and DMARC before the first email, and an MX record so replies arrive. Then warm the inboxes for two to four weeks.
The price shown is what the domain costs through Ken: the registrar price plus 3%, rounded up to the next whole dollar.
Why it matters for cold email
Cold email belongs on sending domains, not on the domain your customers and team write to. If a sending domain picks up a bad reputation, you retire it and your main domain is untouched.
Domains also need time. A domain registered today and sending next week draws more suspicion than one that has been set up and warming for a month. Register sending domains before you need them.