performance.dnsPrefetch#

• Type: undefined | string[]

• Default: undefined

Specifies that the user agent should preemptively perform DNS resolution for the target resource's origin, refer to dns-prefetch.

After this property is set, the domain name can be resolved before the resource is requested, reducing request latency and improving loading performance.

See Using dns-prefetch for more details.

Example#

export default {
  performance: {
    dnsPrefetch: ['http://example.com'],
  },
};