diff --git a/README.md b/README.md
index d976db7..577f373 100644
--- a/README.md
+++ b/README.md
@@ -12,11 +12,18 @@ import basicSsl from '@vitejs/plugin-basic-ssl'
 
 export default {
   plugins: [
-    basicSsl()
+    basicSsl({
+      /** name of certification */
+      name: 'test',
+      /** custom trust domains */
+      domains: ['*.custom.com'],
+      /** custom certification directory */
+      certDir: '/Users/.../.devServer/cert'
+    })
   ]
 }
 ```
- 
+
 ## License
 
 MIT
diff --git a/src/certificate.ts b/src/certificate.ts
index d8ce82d..71c730b 100644
--- a/src/certificate.ts
+++ b/src/certificate.ts
@@ -52,10 +52,14 @@ function toPositiveHex(hexString: string) {
   return mostSignificativeHexAsInt.toString() + hexString.substring(1)
 }
 
-export function createCertificate(): string {
+export function createCertificate(name: string = 'example.org', domains?: string[]): string {
   const days = 30
   const keySize = 2048
 
+  const appendDomains = domains
+    ? domains.map(item => ({ type: 2, value: item }))
+    : []
+
   const extensions = [
     // {
     //   name: 'basicConstraints',
@@ -108,7 +112,8 @@ export function createCertificate(): string {
         {
           type: 7,
           ip: 'fe80::1'
-        }
+        },
+        ...appendDomains
       ]
     }
   ]
@@ -116,7 +121,7 @@ export function createCertificate(): string {
   const attrs = [
     {
       name: 'commonName',
-      value: 'example.org'
+      value: name
     },
     {
       name: 'countryName',
diff --git a/src/index.ts b/src/index.ts
index 5f80cae..39abefc 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,11 +4,21 @@ import type { Plugin } from 'vite'
 
 const defaultCacheDir = 'node_modules/.vite'
 
-function viteBasicSslPlugin(): Plugin {
+interface Options {
+  certDir: string
+  domains: string[]
+  name: string
+}
+
+function viteBasicSslPlugin(options?: Partial<Options>): Plugin {
   return {
     name: 'vite:basic-ssl',
     async configResolved(config) {
-      const certificate = await getCertificate((config.cacheDir ?? defaultCacheDir) + '/basic-ssl')
+      const certificate = await getCertificate(
+        options?.certDir ?? (config.cacheDir ?? defaultCacheDir) + '/basic-ssl',
+        options?.name,
+        options?.domains
+      )
       const https = () => ({ cert: certificate, key: certificate })
       if (config.server.https === undefined || !!config.server.https) {
         config.server.https = Object.assign({}, config.server.https, https())
@@ -20,7 +30,11 @@ function viteBasicSslPlugin(): Plugin {
   }
 }
 
-export async function getCertificate(cacheDir: string) {
+export async function getCertificate(
+  cacheDir: string,
+  name?: string,
+  domains?: string[]
+) {
   const cachePath = path.join(cacheDir, '_cert.pem')
 
   try {
@@ -35,7 +49,10 @@ export async function getCertificate(cacheDir: string) {
 
     return content
   } catch {
-    const content = (await import('./certificate')).createCertificate()
+    const content = (await import('./certificate')).createCertificate(
+      name,
+      domains
+    )
     fsp
       .mkdir(cacheDir, { recursive: true })
       .then(() => fsp.writeFile(cachePath, content))