diff --git a/src/__tests__/common.test.ts b/src/__tests__/common.test.ts
index 4423d9e..0b70826 100644
--- a/src/__tests__/common.test.ts
+++ b/src/__tests__/common.test.ts
@@ -20,18 +20,36 @@ const noop = function() {}
 describe('configure tests', () => {
   it('should configure work without custom settings', () => {
     const context = configure({})
-    const { settings, ssrConfigs, isSSR, $isConfigured } = context
+    const {
+      settings,
+      collection: { ssrConfigs, cacheKeys },
+      isSSR,
+      isConfigured
+    } = context
     expect(settings).toMatchObject({
       ...defaultSettings,
       cache: new LRU()
     })
-    expect(ssrConfigs).toEqual([])
-    expect(typeof isSSR).toBe('boolean')
-    expect($isConfigured).toBe(true)
+    expect(ssrConfigs.length).toBe(0)
+    expect(cacheKeys.size).toBe(0)
+    expect(isSSR).toBe(false)
+    expect(isConfigured).toBe(true)
+    expect(settings.renderSSR()).toEqual('')
+  })
+
+  it('should configure as expected if the second argument isSSR = true', () => {
+    const context = configure({}, true)
+    const { settings, isSSR } = context
+    expect(settings).toMatchObject({
+      ...defaultSettings,
+      cache: new LRU()
+    })
+    expect(isSSR).toBe(true)
   })
 
   it('should configure work with custom settings', () => {
     const customSSRConfig = []
+    const customCacheKeys = new Set<string>()
     const custom = {
       settings: {
         clientCacheVar: '__FOO_BAR__',
@@ -39,24 +57,33 @@ describe('configure tests', () => {
         cache: new LRU<string, ReactUseApi.CacheData>(),
         maxRequests: 100,
         renderSSR: noop,
-        isSSR: noop,
+        isSSR: () => true,
         useCacheData: false,
         deleteAfterLoading: false
       },
-      ssrConfigs: customSSRConfig,
-      isSSR: true,
-      $isConfigured: false
+      collection: {
+        ssrConfigs: customSSRConfig,
+        cacheKeys: customCacheKeys
+      },
+      isSSR: false,
+      isConfigured: false
     }
     const context = configure(custom)
-    const { settings, ssrConfigs, isSSR, $isConfigured } = context
+    const {
+      settings,
+      collection: { ssrConfigs, cacheKeys },
+      isSSR,
+      isConfigured
+    } = context
     expect(settings).toMatchObject({
       ...defaultSettings,
       ...custom.settings
     })
     expect(settings).not.toBe(defaultSettings)
     expect(ssrConfigs).not.toBe(customSSRConfig)
-    expect(isSSR).toBe(false)
-    expect($isConfigured).toBe(true)
+    expect(cacheKeys.size).toBe(0)
+    expect(isSSR).toBe(true)
+    expect(isConfigured).toBe(true)
   })
 })
 
diff --git a/src/__tests__/ssr.test.ts b/src/__tests__/ssr.test.ts
index 3285354..079e4a2 100644
--- a/src/__tests__/ssr.test.ts
+++ b/src/__tests__/ssr.test.ts
@@ -25,7 +25,8 @@ afterEach(() => {
 
 const copySettings = () => ({
   ...defaultSettings,
-  cache: new LRU<string, ReactUseApi.CacheData | any>()
+  cache: new LRU<string, ReactUseApi.CacheData | any>(),
+  isSSR: () => true
 })
 const testCache = new LRU<string, ReactUseApi.CacheData | any>()
 testCache.set('foo', 'bar')
@@ -65,9 +66,10 @@ describe('feedRequests tests', () => {
       }
     })
     const {
-      settings: { cache }
+      settings: { cache },
+      collection
     } = context
-    context.ssrConfigs = ssrConfigs
+    collection.ssrConfigs = ssrConfigs
     const response = {
       data: {
         message: 'ok'
@@ -75,7 +77,9 @@ describe('feedRequests tests', () => {
     }
     axiosAll.mockReset().mockResolvedValue(response)
     const ssrHtml = await feedRequests(context, '')
+    const { cacheKeys } = collection
     expect(ssrConfigs.length).toBe(0)
+    expect(cacheKeys.size).toBe(0)
     expect(ssrHtml).toBe('<div>Hello World!</div>')
     expect(cache.dump()).toEqual([
       { k: 'abc', v: { response }, e: 0 },
@@ -102,9 +106,10 @@ describe('feedRequests tests', () => {
       }
     })
     const {
-      settings: { cache }
+      settings: { cache },
+      collection
     } = context
-    context.ssrConfigs = ssrConfigs
+    collection.ssrConfigs = ssrConfigs
     const error = {
       response: {
         data: {
@@ -116,7 +121,18 @@ describe('feedRequests tests', () => {
     console.log = jest.fn()
     const ssrHtml = await feedRequests(context, '')
     expect(ssrConfigs.length).toBe(0)
+    expect(console.log).toHaveBeenCalledWith(
+      '[ReactUseApi][Collecting Requests]'
+    )
     expect(console.log).toHaveBeenCalledWith('[ReactUseApi][Fetch]', 'foo')
+    expect(console.log).toHaveBeenCalledWith(
+      '[ReactUseApi][Requests Count] =',
+      0
+    )
+    expect(console.log).toHaveBeenCalledWith(
+      '[ReactUseApi][Executed times] =',
+      1
+    )
     expect(ssrHtml).toBe('<div>Hello World!</div>')
     expect(cache.dump()).toEqual([
       { k: 'foo', v: { error: error.response }, e: 0 }
@@ -141,9 +157,10 @@ describe('feedRequests tests', () => {
       }
     })
     const {
-      settings: { cache }
+      settings: { cache },
+      collection
     } = context
-    context.ssrConfigs = ssrConfigs
+    collection.ssrConfigs = ssrConfigs
     const error = {
       message: 'fail'
     }
@@ -162,7 +179,9 @@ describe('feedRequests tests', () => {
       }
     })
     console.log = jest.fn()
-    const { ssrConfigs } = context
+    const {
+      collection: { ssrConfigs }
+    } = context
     const ssrHtml = await feedRequests(context, '')
     expect(console.log).toHaveBeenCalledWith(
       '[ReactUseApi][Executed times] =',
@@ -178,7 +197,8 @@ describe('feedRequests tests', () => {
         ...copySettings()
       }
     })
-    context.ssrConfigs = [
+    const { collection } = context
+    collection.ssrConfigs = [
       {
         config: {
           url: '/api/v1/foo/bar'
@@ -206,12 +226,13 @@ describe('injectSSRHtml tests', () => {
         renderSSR
       }
     })
-    const { settings } = context
+    const { settings, isSSR } = context
     const { cache } = settings
     cache.reset = jest.fn()
     cache.dump = jest.fn().mockReturnValue({ foo: 'bar' })
     expect.hasAssertions()
     const ssrHtml = await injectSSRHtml(context)
+    expect(isSSR).toBe(true)
     expect(renderSSR).toHaveBeenCalled()
     expect(cache.reset).toHaveBeenCalled()
     expect(feedRequests).toHaveBeenLastCalledWith(context, html)
diff --git a/src/__tests__/useApi.test.tsx b/src/__tests__/useApi.test.tsx
index f4c049f..6dd9a3d 100644
--- a/src/__tests__/useApi.test.tsx
+++ b/src/__tests__/useApi.test.tsx
@@ -92,7 +92,10 @@ describe('useApi tests', () => {
       dependencies: undefined,
       data: apiData
     })
-    expect(context.ssrConfigs.length).toBe(0)
+    const {
+      collection: { ssrConfigs }
+    } = context
+    expect(ssrConfigs.length).toBe(0)
 
     rerender()
 
@@ -277,7 +280,9 @@ describe('useApi tests', () => {
           }),
         { wrapper }
       )
-      const { ssrConfigs } = context
+      const {
+        collection: { ssrConfigs, cacheKeys }
+      } = context
       expect(console.log).toHaveBeenCalledWith(
         '[ReactUseApi][Collect]',
         cacheKey
@@ -290,6 +295,7 @@ describe('useApi tests', () => {
           cacheKey
         }
       ])
+      expect(cacheKeys.size).toBe(1)
       expect(cache.has(feedKey)).toBe(false)
     })
   })
diff --git a/src/common.ts b/src/common.ts
index 79b0125..21e0aa3 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -22,8 +22,11 @@ export const initState = {
   $cacheKey: ''
 }
 
-export const configure = (context: ReactUseApi.CustomContext) => {
-  if (context.$isConfigured) {
+export const configure = (
+  context: ReactUseApi.CustomContext,
+  isSSR = false
+) => {
+  if (context.isConfigured) {
     return context as ReactUseApi.Context
   }
   const { settings: custom } = context
@@ -37,11 +40,16 @@ export const configure = (context: ReactUseApi.CustomContext) => {
       }
     })
   }
+  isSSR =
+    isSSR !== true && isFunction(settings.isSSR) ? !!settings.isSSR() : isSSR
   Object.assign(context, {
     settings,
-    ssrConfigs: [],
-    isSSR: isFunction(settings.isSSR) ? !!settings.isSSR() : false,
-    $isConfigured: true
+    isSSR,
+    isConfigured: true,
+    collection: {
+      ssrConfigs: [],
+      cacheKeys: new Set<string>()
+    } as ReactUseApi.SSRCollection
   })
   return context as ReactUseApi.Context
 }
diff --git a/src/ssr.ts b/src/ssr.ts
index 8ff9aec..b03f084 100644
--- a/src/ssr.ts
+++ b/src/ssr.ts
@@ -5,17 +5,23 @@ export const feedRequests = async (
   ssrHtml: string,
   maxRequests = context.settings.maxRequests
 ) => {
-  const { settings, ssrConfigs } = context
+  const {
+    settings,
+    collection: { ssrConfigs, cacheKeys }
+  } = context
   const { cache, renderSSR, debug } = settings
-
   if (!ssrConfigs.length) {
-    debug &&
+    if (debug) {
+      console.log('[ReactUseApi][Requests Count] =', cacheKeys.size)
       console.log(
         '[ReactUseApi][Executed times] =',
         settings.maxRequests - maxRequests
       )
+    }
+    cacheKeys.clear()
     return ssrHtml // done
   }
+  debug && console.log('[ReactUseApi][Collecting Requests]')
   if (maxRequests === 0) {
     throw new Error('Maximum executing times while fetching axios requests')
   }
@@ -50,7 +56,7 @@ export const injectSSRHtml = async (
   context: ReactUseApi.CustomContext,
   renderSSR?: ReactUseApi.Settings['renderSSR']
 ) => {
-  context = configure(context)
+  context = configure(context, true)
   const { settings } = context
   settings.renderSSR = renderSSR || settings.renderSSR
   const { cache, useCacheData, clientCacheVar } = settings
diff --git a/src/typings.d.ts b/src/typings.d.ts
index 04a422f..3bcd747 100644
--- a/src/typings.d.ts
+++ b/src/typings.d.ts
@@ -18,14 +18,22 @@ declare namespace ReactUseApi {
 
   interface Context {
     settings?: Settings
-    ssrConfigs?: SSRConfig[]
     renderSSR?: Settings['renderSSR']
     isSSR?: boolean
-    $isConfigured?: boolean
+    collection?: SSRCollection
+    isConfigured?: boolean
   }
   interface CustomContext extends Omit<Context, 'settings'> {
     settings?: CustomSettings
   }
+  interface SSRCollection {
+    ssrConfigs: SSRConfigs[]
+    cacheKeys: Set<string>
+  }
+  interface SSRConfigs {
+    config: Config
+    cacheKey: string
+  }
   interface ApiProviderProps {
     context?: CustomContext
   }
@@ -54,10 +62,6 @@ declare namespace ReactUseApi {
     prevState?: State
     dependencies?: Options['dependencies']
   }
-  interface SSRConfig {
-    config: Config
-    cacheKey: string
-  }
   interface JsonObject {
     [key: string]: any
   }
diff --git a/src/useApi.ts b/src/useApi.ts
index e903a4d..0c90eaa 100644
--- a/src/useApi.ts
+++ b/src/useApi.ts
@@ -23,7 +23,7 @@ export const useApi = (
   const {
     settings: { cache, debug },
     isSSR,
-    ssrConfigs
+    collection: { ssrConfigs, cacheKeys }
   } = context
   const cacheKey = JSON.stringify(config)
   const options = useMemo(() => handleUseApiOptions(opt, cacheKey), [
@@ -49,7 +49,10 @@ export const useApi = (
       cache.set(feedKey, true)
     }
   } else if (isSSR) {
-    debug && console.log('[ReactUseApi][Collect]', cacheKey)
+    if (!cacheKeys.has(cacheKey)) {
+      cacheKeys.add(cacheKey)
+      debug && console.log('[ReactUseApi][Collect]', cacheKey)
+    }
     ssrConfigs.push({
       config,
       cacheKey