CustomDomain.ai
Entri
Approximated
Domainee.dev
SaaS Custom Domains
Qloaked
DoDomain
Python Examples
PythonAnywhere
Learn Python The Hard Way
Custom Domain is fully managed infrastructure for letting your users bring their own domain to your product.
Your users should never touch DNS. They love your product right up until you hand them a CNAME and a registrar login. One wrong record, one 48-hour wait, one support ticket, and the domain that was supposed to make you look legit makes you look broken.
Custom Domain replaces that whole step with one button. Your user types the domain they want to connect. They click once and sign in to their own DNS host, so no credentials ever touch you. We fingerprint the provider, write the exact A, CNAME and TXT records, verify them end to end, and issue the certificate before the first request. You get a webhook, and their domain just works.
What you get:
Built for developers: a REST API and typed SDKs, a drop-in widget you add as one script or npm package, and an MCP server so AI agents can connect domains too.
There is a free tier for your first customer domains, and paid plans start at $149 per month.
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CustomDomain.ai Python ExamplesCustomDomain.ai's answer
Two things.
First, your users never handle DNS themselves and never hand you credentials. They click once, sign in to their own DNS host over OAuth or Domain Connect rails, and the grant is used once and discarded. We fingerprint the provider from public records, write the exact A, CNAME and TXT records, verify them end to end, and issue the certificate before the first request.
Second, it does not stop at connection. We re-check every domain every hour and re-issue on change, so you hear about a moved or deleted record before your customer does. Most integrations treat a domain as done once it resolves; domains drift.
It is also optional at the edge: serve customer domains from our edge, or verify and hand DNS straight back to your own stack. And there is an MCP server, so AI agents can connect domains the same way your UI does.
got a cold call from some guy who complained about how he couldnt figure out how to update the dns records. researchedand found customdomain as the solution. now i highly recommend to other dev teams.
the product is a widget thats embedded inside our product and has user buy or add existing domain (like the domain that they already own) and then they sign into the place that they baught the domain- like the godaddy or namecheap. and once they sign in, it automatically updates the dns for them and they never had to do anything but sign into the domain provider
Entri - Entri is the API for custom domains. We make it easy for your application to connect, secure, sell, and power custom domains.
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Domainee.dev - Custom Domains & Domain Purchasing API for SaaS
SaaS Custom Domains - The easiest solution for offering branded custom domains and white-labelling to your customers. Secure, reliable, and scalable.