diff --git a/x-pack/plugins/enterprise_search/public/applications/enterprise_search_content/components/search_indices/search_indices.tsx b/x-pack/plugins/enterprise_search/public/applications/enterprise_search_content/components/search_indices/search_indices.tsx
index 1540b944b2dec..218f2bcc550b4 100644
--- a/x-pack/plugins/enterprise_search/public/applications/enterprise_search_content/components/search_indices/search_indices.tsx
+++ b/x-pack/plugins/enterprise_search/public/applications/enterprise_search_content/components/search_indices/search_indices.tsx
@@ -211,8 +211,8 @@ export const SearchIndices: React.FC = () => {
                       <EuiToolTip
                         content={
                           <FormattedMessage
-                            id="xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.tooltipContent"
-                            defaultMessage="Search-optimized indices are prefixed with {code}. They are managed by ingestion mechanisms such as crawlers, connectors or ingestion APIs."
+                            id="xpack.enterpriseSearch.content.searchIndices.searchIndices.onlyCrawlerIndices.tooltipContent"
+                            defaultMessage="Crawler indices are prefixed with {code}. Connector and ingestion API indices created prior to 8.13.0 may also have this prefix, but it is not longer required."
                             values={{ code: <EuiCode>search-</EuiCode> }}
                           />
                         }
@@ -220,9 +220,9 @@ export const SearchIndices: React.FC = () => {
                         <EuiSwitch
                           checked={onlyShowSearchOptimizedIndices}
                           label={i18n.translate(
-                            'xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.label',
+                            'xpack.enterpriseSearch.content.searchIndices.searchIndices.onlyCrawlerIndices.label',
                             {
-                              defaultMessage: 'Only show search-optimized indices',
+                              defaultMessage: 'Only show crawler indices',
                             }
                           )}
                           onChange={(event) =>
diff --git a/x-pack/plugins/translations/translations/fr-FR.json b/x-pack/plugins/translations/translations/fr-FR.json
index e74f263a65d48..0e463b708b485 100644
--- a/x-pack/plugins/translations/translations/fr-FR.json
+++ b/x-pack/plugins/translations/translations/fr-FR.json
@@ -12698,7 +12698,6 @@
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.delete.description": "La suppression de cet index supprimera également toutes ses données et sa configuration {ingestionMethod}. Les applications de recherche associées ne pourront plus accéder à aucune donnée stockée dans cet index.",
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.syncsWarning.indexNameDescription": "Cette action ne peut pas être annulée. Veuillez saisir {indexName} pour confirmer.",
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.title": "Voulez-vous vraiment supprimer {indexName} ?",
-    "xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.tooltipContent": "Les index optimisés pour la recherche sont précédés du préfixe {code}. Ils sont gérés par des mécanismes d'ingestion tels que des robots d'indexation, des connecteurs ou des API d'ingestion.",
     "xpack.enterpriseSearch.crawler.action.deleteDomain.confirmationPopupMessage": "Voulez-vous vraiment supprimer le domaine \"{domainUrl}\" et tous ses paramètres ?",
     "xpack.enterpriseSearch.crawler.addDomainForm.entryPointLabel": "Le point d'entrée du robot d'indexation a été défini sur {entryPointValue}",
     "xpack.enterpriseSearch.crawler.authenticationPanel.emptyPrompt.description": "Cliquer sur {addAuthenticationButtonLabel} afin de fournir les informations d'identification nécessaires pour indexer le contenu protégé",
@@ -14350,7 +14349,6 @@
     "xpack.enterpriseSearch.content.searchIndices.name.columnTitle": "Nom de l'index",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.breadcrumb": "Index Elasticsearch",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.includeHidden.label": "Afficher les index masqués",
-    "xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.label": "Afficher uniquement les index optimisés pour la recherche",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.pageTitle": "Index Elasticsearch",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.searchBar.ariaLabel": "Filtrer les index Elasticsearch",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.searchBar.placeHolder": "Filtrer les index Elasticsearch",
diff --git a/x-pack/plugins/translations/translations/ja-JP.json b/x-pack/plugins/translations/translations/ja-JP.json
index 640738487be89..0d58fc9b48f07 100644
--- a/x-pack/plugins/translations/translations/ja-JP.json
+++ b/x-pack/plugins/translations/translations/ja-JP.json
@@ -12711,7 +12711,6 @@
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.delete.description": "このインデックスを削除すると、すべてのデータと{ingestionMethod}構成も削除されます。すべての関連付けられた検索アプリケーションは、このインデックスに格納されたどのデータにもアクセスできなくなります。",
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.syncsWarning.indexNameDescription": "この操作は元に戻すことができません。確認するには{indexName}を入力してください。",
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.title": "{indexName}を削除しますか？",
-    "xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.tooltipContent": "検索用に最適化されたインデックスには、{code}がプレフィックスとして付けられます。これらは、クローラー、コネクター、インジェストAPIなどのインジェストメカニズムによって管理されます。",
     "xpack.enterpriseSearch.crawler.action.deleteDomain.confirmationPopupMessage": "ドメイン\"{domainUrl}\"とすべての設定を削除しますか？",
     "xpack.enterpriseSearch.crawler.addDomainForm.entryPointLabel": "Webクローラーエントリポイントが{entryPointValue}として設定されました",
     "xpack.enterpriseSearch.crawler.authenticationPanel.emptyPrompt.description": "{addAuthenticationButtonLabel}をクリックすると、保護されたコンテンツのクローリングに必要な資格情報を提供します",
@@ -14363,7 +14362,6 @@
     "xpack.enterpriseSearch.content.searchIndices.name.columnTitle": "インデックス名",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.breadcrumb": "デフォルトのインデックス",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.includeHidden.label": "非表示のインデックスを表示",
-    "xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.label": "検索用に最適化されたインデックスのみを表示",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.pageTitle": "デフォルトのインデックス",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.searchBar.ariaLabel": "Elasticsearchインデックスをフィルター",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.searchBar.placeHolder": "Elasticsearchインデックスをフィルター",
diff --git a/x-pack/plugins/translations/translations/zh-CN.json b/x-pack/plugins/translations/translations/zh-CN.json
index 1c268e25c7861..d76a012060de8 100644
--- a/x-pack/plugins/translations/translations/zh-CN.json
+++ b/x-pack/plugins/translations/translations/zh-CN.json
@@ -12805,7 +12805,6 @@
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.delete.description": "删除此索引还会删除它的所有数据及其 {ingestionMethod} 配置。任何关联的搜索应用程序将无法再访问此索引中存储的任何数据。",
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.syncsWarning.indexNameDescription": "此操作无法撤消。请键入 {indexName} 以确认。",
     "xpack.enterpriseSearch.content.searchIndices.deleteModal.title": "是否确定要删除 {indexName}",
-    "xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.tooltipContent": "搜索优化索引以 {code} 为前缀。它们由网络爬虫、连接器或采集 API 等采集机制进行管理。",
     "xpack.enterpriseSearch.crawler.action.deleteDomain.confirmationPopupMessage": "确定要移除域“{domainUrl}”及其所有设置？",
     "xpack.enterpriseSearch.crawler.addDomainForm.entryPointLabel": "网络爬虫入口点已设置为 {entryPointValue}",
     "xpack.enterpriseSearch.crawler.authenticationPanel.emptyPrompt.description": "单击 {addAuthenticationButtonLabel} 以提供爬网受保护内容所需的凭据",
@@ -14457,7 +14456,6 @@
     "xpack.enterpriseSearch.content.searchIndices.name.columnTitle": "索引名称",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.breadcrumb": "Elasticsearch 索引",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.includeHidden.label": "显示隐藏的索引",
-    "xpack.enterpriseSearch.content.searchIndices.searchIndices.onlySearchOptimized.label": "仅显示搜索优化的索引",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.pageTitle": "Elasticsearch 索引",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.searchBar.ariaLabel": "筛选 Elasticsearch 索引",
     "xpack.enterpriseSearch.content.searchIndices.searchIndices.searchBar.placeHolder": "筛选 Elasticsearch 索引",