diff --git a/web/redux/action-types.js b/web/redux/action-types.js
index c967ab335..52a8b4c1e 100644
--- a/web/redux/action-types.js
+++ b/web/redux/action-types.js
@@ -1,6 +1,39 @@
 // @flow
 
+import type { CallServerEndpoint } from 'lib/utils/call-server-endpoint.js';
+import type { URLInfo } from 'lib/utils/url-utils.js';
+
+import type { InitialReduxState } from '../types/redux-types.js';
+
 export const updateNavInfoActionType = 'UPDATE_NAV_INFO';
 export const updateWindowDimensionsActionType = 'UPDATE_WINDOW_DIMENSIONS';
 export const updateWindowActiveActionType = 'UPDATE_WINDOW_ACTIVE';
 export const setDeviceIDActionType = 'SET_DEVICE_ID';
+export const setInitialReduxState = 'SET_INITIAL_REDUX_STATE';
+
+const getInitialReduxState =
+  (
+    callServerEndpoint: CallServerEndpoint,
+  ): (URLInfo => Promise<InitialReduxState>) =>
+  async urlInfo => {
+    const response = await callServerEndpoint(
+      'get_initial_redux_state',
+      urlInfo,
+    );
+    return {
+      navInfo: response.navInfo,
+      currentUserInfo: response.currentUserInfo,
+      entryStore: response.entryStore,
+      threadStore: response.threadStore,
+      userInfos: response.userInfos,
+      actualizedCalendarQuery: response.actualizedCalendarQuery,
+      messageStore: response.messageStore,
+      dataLoaded: response.dataLoaded,
+      pushApiPublicKey: response.pushApiPublicKey,
+      commServicesAccessToken: response.commServicesAccessToken,
+      inviteLinksStore: response.inviteLinksStore,
+      keyserverInfo: response.keyserverInfo,
+    };
+  };
+
+export { getInitialReduxState };
diff --git a/web/redux/redux-setup.js b/web/redux/redux-setup.js
index 04246b7c9..d4e821c1a 100644
--- a/web/redux/redux-setup.js
+++ b/web/redux/redux-setup.js
@@ -1,324 +1,344 @@
 // @flow
 
 import invariant from 'invariant';
 import type { PersistState } from 'redux-persist/es/types.js';
 
 import {
   logOutActionTypes,
   deleteAccountActionTypes,
 } from 'lib/actions/user-actions.js';
 import { reportStoreOpsHandlers } from 'lib/ops/report-store-ops.js';
 import baseReducer from 'lib/reducers/master-reducer.js';
 import { mostRecentlyReadThreadSelector } from 'lib/selectors/thread-selectors.js';
 import { isLoggedIn } from 'lib/selectors/user-selectors.js';
 import { invalidSessionDowngrade } from 'lib/shared/session-utils.js';
 import type { Shape } from 'lib/types/core.js';
 import type {
   CryptoStore,
   OLMIdentityKeys,
   PickledOLMAccount,
 } from 'lib/types/crypto-types.js';
 import type { DraftStore } from 'lib/types/draft-types.js';
 import type { EnabledApps } from 'lib/types/enabled-apps.js';
 import type { EntryStore, CalendarQuery } from 'lib/types/entry-types.js';
 import { type CalendarFilter } from 'lib/types/filter-types.js';
 import type { KeyserverStore } from 'lib/types/keyserver-types.js';
 import type { LifecycleState } from 'lib/types/lifecycle-state-types.js';
 import type { InviteLinksStore } from 'lib/types/link-types.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
 import type { MessageStore } from 'lib/types/message-types.js';
 import type { UserPolicies } from 'lib/types/policy-types.js';
 import type { BaseAction } from 'lib/types/redux-types.js';
 import type { ReportStore } from 'lib/types/report-types.js';
 import type { ThreadStore } from 'lib/types/thread-types.js';
 import type { CurrentUserInfo, UserStore } from 'lib/types/user-types.js';
 import { setNewSessionActionType } from 'lib/utils/action-utils.js';
 import type { NotifPermissionAlertInfo } from 'lib/utils/push-alerts.js';
 import { ashoatKeyserverID } from 'lib/utils/validation-utils.js';
 
 import {
   updateWindowActiveActionType,
   setDeviceIDActionType,
   updateNavInfoActionType,
   updateWindowDimensionsActionType,
+  setInitialReduxState,
 } from './action-types.js';
 import { reduceCommunityPickerStore } from './community-picker-reducer.js';
 import {
   reduceCryptoStore,
   setPrimaryIdentityKeys,
   setNotificationIdentityKeys,
   setPickledNotificationAccount,
   setPickledPrimaryAccount,
 } from './crypto-store-reducer.js';
 import { reduceDeviceID } from './device-id-reducer.js';
 import reduceNavInfo from './nav-reducer.js';
 import { getVisibility } from './visibility.js';
 import { getDatabaseModule } from '../database/database-module-provider.js';
 import { activeThreadSelector } from '../selectors/nav-selectors.js';
 import { type NavInfo } from '../types/nav-types.js';
+import type { InitialReduxState } from '../types/redux-types.js';
 import { workerRequestMessageTypes } from '../types/worker-types.js';
 
 export type WindowDimensions = { width: number, height: number };
 
 export type CommunityPickerStore = {
   +chat: ?string,
   +calendar: ?string,
 };
 
 export type AppState = {
   +navInfo: NavInfo,
   +deviceID: ?string,
   +currentUserInfo: ?CurrentUserInfo,
   +draftStore: DraftStore,
   +entryStore: EntryStore,
   +threadStore: ThreadStore,
   +userStore: UserStore,
   +messageStore: MessageStore,
   +loadingStatuses: { [key: string]: { [idx: number]: LoadingStatus } },
   +calendarFilters: $ReadOnlyArray<CalendarFilter>,
   +communityPickerStore: CommunityPickerStore,
   +windowDimensions: WindowDimensions,
   +deviceToken: ?string,
   +notifPermissionAlertInfo: NotifPermissionAlertInfo,
   +actualizedCalendarQuery: CalendarQuery,
   +watchedThreadIDs: $ReadOnlyArray<string>,
   +lifecycleState: LifecycleState,
   +enabledApps: EnabledApps,
   +reportStore: ReportStore,
   +nextLocalID: number,
   +dataLoaded: boolean,
   +windowActive: boolean,
   +userPolicies: UserPolicies,
   +cryptoStore: CryptoStore,
   +pushApiPublicKey: ?string,
   +_persist: ?PersistState,
   +commServicesAccessToken: ?string,
   +inviteLinksStore: InviteLinksStore,
   +keyserverStore: KeyserverStore,
 };
 
 export type Action =
   | BaseAction
   | { type: 'UPDATE_NAV_INFO', payload: Shape<NavInfo> }
   | {
       type: 'UPDATE_WINDOW_DIMENSIONS',
       payload: WindowDimensions,
     }
   | {
       type: 'UPDATE_WINDOW_ACTIVE',
       payload: boolean,
     }
   | {
       type: 'SET_DEVICE_ID',
       payload: string,
     }
   | { +type: 'SET_PRIMARY_IDENTITY_KEYS', payload: ?OLMIdentityKeys }
   | { +type: 'SET_NOTIFICATION_IDENTITY_KEYS', payload: ?OLMIdentityKeys }
   | { +type: 'SET_PICKLED_PRIMARY_ACCOUNT', payload: ?PickledOLMAccount }
-  | { +type: 'SET_PICKLED_NOTIFICATION_ACCOUNT', payload: ?PickledOLMAccount };
+  | { +type: 'SET_PICKLED_NOTIFICATION_ACCOUNT', payload: ?PickledOLMAccount }
+  | { +type: 'SET_INITIAL_REDUX_STATE', payload: InitialReduxState };
 
 export function reducer(oldState: AppState | void, action: Action): AppState {
   invariant(oldState, 'should be set');
   let state = oldState;
 
-  if (action.type === updateWindowDimensionsActionType) {
+  if (action.type === setInitialReduxState) {
+    const { userInfos, keyserverInfo, ...rest } = action.payload;
+    return validateState(oldState, {
+      ...state,
+      ...rest,
+      userStore: { userInfos, inconsistencyReports: [] },
+      keyserverStore: {
+        ...state.keyserverStore,
+        keyserverInfos: {
+          ...state.keyserverStore.keyserverInfos,
+          [ashoatKeyserverID]: {
+            ...state.keyserverStore.keyserverInfos[ashoatKeyserverID],
+            ...keyserverInfo,
+          },
+        },
+      },
+    });
+  } else if (action.type === updateWindowDimensionsActionType) {
     return validateState(oldState, {
       ...state,
       windowDimensions: action.payload,
     });
   } else if (action.type === updateWindowActiveActionType) {
     return validateState(oldState, {
       ...state,
       windowActive: action.payload,
     });
   } else if (action.type === setNewSessionActionType) {
     if (
       invalidSessionDowngrade(
         oldState,
         action.payload.sessionChange.currentUserInfo,
         action.payload.preRequestUserState,
       )
     ) {
       return oldState;
     }
 
     state = {
       ...state,
       keyserverStore: {
         ...state.keyserverStore,
         keyserverInfos: {
           ...state.keyserverStore.keyserverInfos,
           [ashoatKeyserverID]: {
             ...state.keyserverStore.keyserverInfos[ashoatKeyserverID],
             sessionID: action.payload.sessionChange.sessionID,
           },
         },
       },
     };
   } else if (
     (action.type === logOutActionTypes.success &&
       invalidSessionDowngrade(
         oldState,
         action.payload.currentUserInfo,
         action.payload.preRequestUserState,
       )) ||
     (action.type === deleteAccountActionTypes.success &&
       invalidSessionDowngrade(
         oldState,
         action.payload.currentUserInfo,
         action.payload.preRequestUserState,
       ))
   ) {
     return oldState;
   }
 
   if (
     action.type !== updateNavInfoActionType &&
     action.type !== setDeviceIDActionType &&
     action.type !== setPrimaryIdentityKeys &&
     action.type !== setNotificationIdentityKeys &&
     action.type !== setPickledPrimaryAccount &&
     action.type !== setPickledNotificationAccount
   ) {
     const baseReducerResult = baseReducer(state, action);
     state = baseReducerResult.state;
 
     const {
       storeOperations: { draftStoreOperations, reportStoreOperations },
     } = baseReducerResult;
     if (draftStoreOperations.length > 0 || reportStoreOperations.length > 0) {
       (async () => {
         const databaseModule = await getDatabaseModule();
         const isSupported = await databaseModule.isDatabaseSupported();
         if (!isSupported) {
           return;
         }
         const convertedReportStoreOperations =
           reportStoreOpsHandlers.convertOpsToClientDBOps(reportStoreOperations);
         await databaseModule.schedule({
           type: workerRequestMessageTypes.PROCESS_STORE_OPERATIONS,
           storeOperations: {
             draftStoreOperations,
             reportStoreOperations: convertedReportStoreOperations,
           },
         });
       })();
     }
   }
 
   const communityPickerStore = reduceCommunityPickerStore(
     state.communityPickerStore,
     action,
   );
 
   state = {
     ...state,
     navInfo: reduceNavInfo(
       state.navInfo,
       action,
       state.threadStore.threadInfos,
     ),
     deviceID: reduceDeviceID(state.deviceID, action),
     cryptoStore: reduceCryptoStore(state.cryptoStore, action),
     communityPickerStore,
   };
 
   return validateState(oldState, state);
 }
 
 function validateState(oldState: AppState, state: AppState): AppState {
   if (
     (state.navInfo.activeChatThreadID &&
       !state.navInfo.pendingThread &&
       !state.threadStore.threadInfos[state.navInfo.activeChatThreadID]) ||
     (!state.navInfo.activeChatThreadID && isLoggedIn(state))
   ) {
     // Makes sure the active thread always exists
     state = {
       ...state,
       navInfo: {
         ...state.navInfo,
         activeChatThreadID: mostRecentlyReadThreadSelector(state),
       },
     };
   }
 
   const activeThread = activeThreadSelector(state);
   if (
     activeThread &&
     !state.navInfo.pendingThread &&
     state.threadStore.threadInfos[activeThread].currentUser.unread &&
     getVisibility().hidden()
   ) {
     console.warn(
       `thread ${activeThread} is active and unread, ` +
         'but visibilityjs reports the window is not visible',
     );
   }
   if (
     activeThread &&
     !state.navInfo.pendingThread &&
     state.threadStore.threadInfos[activeThread].currentUser.unread &&
     typeof document !== 'undefined' &&
     document &&
     'hasFocus' in document &&
     !document.hasFocus()
   ) {
     console.warn(
       `thread ${activeThread} is active and unread, ` +
         'but document.hasFocus() is false',
     );
   }
   if (
     activeThread &&
     !getVisibility().hidden() &&
     typeof document !== 'undefined' &&
     document &&
     'hasFocus' in document &&
     document.hasFocus() &&
     !state.navInfo.pendingThread &&
     state.threadStore.threadInfos[activeThread].currentUser.unread
   ) {
     // Makes sure a currently focused thread is never unread
     state = {
       ...state,
       threadStore: {
         ...state.threadStore,
         threadInfos: {
           ...state.threadStore.threadInfos,
           [activeThread]: {
             ...state.threadStore.threadInfos[activeThread],
             currentUser: {
               ...state.threadStore.threadInfos[activeThread].currentUser,
               unread: false,
             },
           },
         },
       },
     };
   }
 
   const oldActiveThread = activeThreadSelector(oldState);
   if (
     activeThread &&
     oldActiveThread !== activeThread &&
     state.messageStore.threads[activeThread]
   ) {
     // Update messageStore.threads[activeThread].lastNavigatedTo
     state = {
       ...state,
       messageStore: {
         ...state.messageStore,
         threads: {
           ...state.messageStore.threads,
           [activeThread]: {
             ...state.messageStore.threads[activeThread],
             lastNavigatedTo: Date.now(),
           },
         },
       },
     };
   }
 
   return state;
 }