Faster domain aliasing for large-scale multi-tenant applications
By Steven Van ·
The speedup applies to all customers, and one app with 13,254 domains went from about 10 minutes of aliasing to 28 seconds.
Multi-tenant apps on Vercel that sit behind hundreds or thousands of domains now spend far less time on aliasing, the step that points a domain at a different deployment. Vercel says bulk aliasing is up to 95% faster, and the change is live for all customers.
Aliasing had been slow enough to add significant overhead to deployments. Vercel gave two examples of the new timings:
An app with 13,254 domains went from about 10 minutes to 28 seconds. An app with 23,743 domains went from 8 minutes 37 seconds to 26 seconds.
A multi-tenant application lets a single project serve many customers, usually with a domain for each.