diff --git a/app/javascript/flavours/glitch/actions/domain_blocks.js b/app/javascript/flavours/glitch/actions/domain_blocks.js
index e102a6c59..46f76710c 100644
--- a/app/javascript/flavours/glitch/actions/domain_blocks.js
+++ b/app/javascript/flavours/glitch/actions/domain_blocks.js
@@ -12,6 +12,10 @@ export const DOMAIN_BLOCKS_FETCH_REQUEST = 'DOMAIN_BLOCKS_FETCH_REQUEST';
 export const DOMAIN_BLOCKS_FETCH_SUCCESS = 'DOMAIN_BLOCKS_FETCH_SUCCESS';
 export const DOMAIN_BLOCKS_FETCH_FAIL    = 'DOMAIN_BLOCKS_FETCH_FAIL';
 
+export const DOMAIN_BLOCKS_EXPAND_REQUEST = 'DOMAIN_BLOCKS_EXPAND_REQUEST';
+export const DOMAIN_BLOCKS_EXPAND_SUCCESS = 'DOMAIN_BLOCKS_EXPAND_SUCCESS';
+export const DOMAIN_BLOCKS_EXPAND_FAIL    = 'DOMAIN_BLOCKS_EXPAND_FAIL';
+
 export function blockDomain(domain) {
   return (dispatch, getState) => {
     dispatch(blockDomainRequest(domain));
@@ -119,3 +123,43 @@ export function fetchDomainBlocksFail(error) {
     error,
   };
 };
+
+export function expandDomainBlocks() {
+  return (dispatch, getState) => {
+    const url = getState().getIn(['domain_lists', 'blocks', 'next']);
+
+    if (url === null) {
+      return;
+    }
+
+    dispatch(expandDomainBlocksRequest());
+
+    api(getState).get(url).then(response => {
+      const next = getLinks(response).refs.find(link => link.rel === 'next');
+      dispatch(expandDomainBlocksSuccess(response.data, next ? next.uri : null));
+    }).catch(err => {
+      dispatch(expandDomainBlocksFail(err));
+    });
+  };
+};
+
+export function expandDomainBlocksRequest() {
+  return {
+    type: DOMAIN_BLOCKS_EXPAND_REQUEST,
+  };
+};
+
+export function expandDomainBlocksSuccess(domains, next) {
+  return {
+    type: DOMAIN_BLOCKS_EXPAND_SUCCESS,
+    domains,
+    next,
+  };
+};
+
+export function expandDomainBlocksFail(error) {
+  return {
+    type: DOMAIN_BLOCKS_EXPAND_FAIL,
+    error,
+  };
+};
diff --git a/app/javascript/flavours/glitch/reducers/domain_lists.js b/app/javascript/flavours/glitch/reducers/domain_lists.js
new file mode 100644
index 000000000..a9e3519f3
--- /dev/null
+++ b/app/javascript/flavours/glitch/reducers/domain_lists.js
@@ -0,0 +1,23 @@
+import {
+  DOMAIN_BLOCKS_FETCH_SUCCESS,
+  DOMAIN_BLOCKS_EXPAND_SUCCESS,
+  DOMAIN_UNBLOCK_SUCCESS,
+} from '../actions/domain_blocks';
+import { Map as ImmutableMap, OrderedSet as ImmutableOrderedSet } from 'immutable';
+
+const initialState = ImmutableMap({
+  blocks: ImmutableMap(),
+});
+
+export default function domainLists(state = initialState, action) {
+  switch(action.type) {
+  case DOMAIN_BLOCKS_FETCH_SUCCESS:
+    return state.setIn(['blocks', 'items'], ImmutableOrderedSet(action.domains)).setIn(['blocks', 'next'], action.next);
+  case DOMAIN_BLOCKS_EXPAND_SUCCESS:
+    return state.updateIn(['blocks', 'items'], set => set.union(action.domains)).setIn(['blocks', 'next'], action.next);
+  case DOMAIN_UNBLOCK_SUCCESS:
+    return state.updateIn(['blocks', 'items'], set => set.delete(action.domain));
+  default:
+    return state;
+  }
+};
diff --git a/app/javascript/flavours/glitch/reducers/index.js b/app/javascript/flavours/glitch/reducers/index.js
index e9c8d7c1d..8eb7c9830 100644
--- a/app/javascript/flavours/glitch/reducers/index.js
+++ b/app/javascript/flavours/glitch/reducers/index.js
@@ -5,6 +5,7 @@ import alerts from './alerts';
 import { loadingBarReducer } from 'react-redux-loading-bar';
 import modal from './modal';
 import user_lists from './user_lists';
+import domain_lists from './domain_lists';
 import accounts from './accounts';
 import accounts_counters from './accounts_counters';
 import statuses from './statuses';
@@ -33,6 +34,7 @@ const reducers = {
   loadingBar: loadingBarReducer,
   modal,
   user_lists,
+  domain_lists,
   status_lists,
   accounts,
   accounts_counters,