diff --git a/src/app/browser/database.rs b/src/app/browser/database.rs
index 4de281ad..7c72b9e2 100644
--- a/src/app/browser/database.rs
+++ b/src/app/browser/database.rs
@@ -10,7 +10,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         "CREATE TABLE IF NOT EXISTS `app_browser`
         (
             `id`     INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
-            `app_id` INTEGER NOT NULL
+            `app_id` INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_id`) REFERENCES `app`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/widget/database.rs b/src/app/browser/widget/database.rs
index 55374edc..7030ed27 100644
--- a/src/app/browser/widget/database.rs
+++ b/src/app/browser/widget/database.rs
@@ -16,7 +16,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
             `app_browser_id` INTEGER NOT NULL,
             `default_width`  INTEGER NOT NULL,
             `default_height` INTEGER NOT NULL,
-            `is_maximized`   INTEGER NOT NULL
+            `is_maximized`   INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_browser_id`) REFERENCES `app_browser`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/database.rs b/src/app/browser/window/database.rs
index 8ce6f69b..d57c4589 100644
--- a/src/app/browser/window/database.rs
+++ b/src/app/browser/window/database.rs
@@ -10,7 +10,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         "CREATE TABLE IF NOT EXISTS `app_browser_window`
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
-            `app_browser_id` INTEGER NOT NULL
+            `app_browser_id` INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_browser_id`) REFERENCES `app_browser`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/database.rs b/src/app/browser/window/tab/database.rs
index 2750f2ad..d916ff3e 100644
--- a/src/app/browser/window/tab/database.rs
+++ b/src/app/browser/window/tab/database.rs
@@ -10,7 +10,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         "CREATE TABLE IF NOT EXISTS `app_browser_window_tab`
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
-            `app_browser_window_id` INTEGER NOT NULL
+            `app_browser_window_id` INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_browser_window_id`) REFERENCES `app_browser_window`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/item/database.rs b/src/app/browser/window/tab/item/database.rs
index 402896d4..a1423adc 100644
--- a/src/app/browser/window/tab/item/database.rs
+++ b/src/app/browser/window/tab/item/database.rs
@@ -17,7 +17,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
             `page_position` INTEGER NOT NULL,
             `is_pinned` INTEGER NOT NULL,
             `is_selected` INTEGER NOT NULL,
-            `is_attention` INTEGER NOT NULL
+            `is_attention` INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_browser_window_tab_id`) REFERENCES `app_browser_window_tab`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/item/page/database.rs b/src/app/browser/window/tab/item/page/database.rs
index 9c02a787..53a3a0b6 100644
--- a/src/app/browser/window/tab/item/page/database.rs
+++ b/src/app/browser/window/tab/item/page/database.rs
@@ -10,7 +10,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         "CREATE TABLE IF NOT EXISTS `app_browser_window_tab_item_page`
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
-            `app_browser_window_tab_item_id` INTEGER NOT NULL
+            `app_browser_window_tab_item_id` INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_browser_window_tab_item_id`) REFERENCES `app_browser_window_tab_item`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/item/page/meta/database.rs b/src/app/browser/window/tab/item/page/meta/database.rs
index 707f4cb9..7f5fb32e 100644
--- a/src/app/browser/window/tab/item/page/meta/database.rs
+++ b/src/app/browser/window/tab/item/page/meta/database.rs
@@ -12,7 +12,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
             `app_browser_window_tab_item_page_id` INTEGER NOT NULL,
-            `title` VARCHAR(1024)
+            `title` VARCHAR(1024),
+
+            FOREIGN KEY (`app_browser_window_tab_item_page_id`) REFERENCES `app_browser_window_tab_item_page`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/item/page/navigation/database.rs b/src/app/browser/window/tab/item/page/navigation/database.rs
index 68f9e491..52cb9ae2 100644
--- a/src/app/browser/window/tab/item/page/navigation/database.rs
+++ b/src/app/browser/window/tab/item/page/navigation/database.rs
@@ -10,7 +10,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         "CREATE TABLE IF NOT EXISTS `app_browser_window_tab_item_page_navigation`
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
-            `app_browser_window_tab_item_page_id` INTEGER NOT NULL
+            `app_browser_window_tab_item_page_id` INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_browser_window_tab_item_page_id`) REFERENCES `app_browser_window_tab_item_page`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/item/page/navigation/request/database.rs b/src/app/browser/window/tab/item/page/navigation/request/database.rs
index 4b0d0e67..8e22c90d 100644
--- a/src/app/browser/window/tab/item/page/navigation/request/database.rs
+++ b/src/app/browser/window/tab/item/page/navigation/request/database.rs
@@ -10,7 +10,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         "CREATE TABLE IF NOT EXISTS `app_browser_window_tab_item_page_navigation_request`
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
-            `app_browser_window_tab_item_page_navigation_id` INTEGER NOT NULL
+            `app_browser_window_tab_item_page_navigation_id` INTEGER NOT NULL,
+
+            FOREIGN KEY (`app_browser_window_tab_item_page_navigation_id`) REFERENCES `app_browser_window_tab_item_page_navigation`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/item/page/navigation/request/widget/database.rs b/src/app/browser/window/tab/item/page/navigation/request/widget/database.rs
index dbbce7de..345707d2 100644
--- a/src/app/browser/window/tab/item/page/navigation/request/widget/database.rs
+++ b/src/app/browser/window/tab/item/page/navigation/request/widget/database.rs
@@ -12,7 +12,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
             `app_browser_window_tab_item_page_navigation_request_id` INTEGER NOT NULL,
-            `text` VARCHAR(1024)
+            `text` VARCHAR(1024),
+
+            FOREIGN KEY (`app_browser_window_tab_item_page_navigation_request_id`) REFERENCES `app_browser_window_tab_item_page_navigation_request`(`id`)
         )",
         [],
     )
diff --git a/src/app/browser/window/tab/item/widget/database.rs b/src/app/browser/window/tab/item/widget/database.rs
index eab96004..1d514f0a 100644
--- a/src/app/browser/window/tab/item/widget/database.rs
+++ b/src/app/browser/window/tab/item/widget/database.rs
@@ -12,7 +12,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         (
             `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
             `app_browser_window_tab_item_id` INTEGER NOT NULL,
-            `title` VARCHAR(1024)
+            `title` VARCHAR(1024),
+
+            FOREIGN KEY (`app_browser_window_tab_item_id`) REFERENCES `app_browser_window_tab_item`(`id`)
         )",
         [],
     )
diff --git a/src/profile/bookmark/database.rs b/src/profile/bookmark/database.rs
index 33924a3f..ac52b598 100644
--- a/src/profile/bookmark/database.rs
+++ b/src/profile/bookmark/database.rs
@@ -82,7 +82,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
             `id`         INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
             `profile_id` INTEGER NOT NULL,
             `time`       INTEGER NOT NULL,
-            `request`    TEXT NOT NULL
+            `request`    TEXT NOT NULL,
+
+            FOREIGN KEY (`profile_id`) REFERENCES `profile`(`id`)
         )",
         [],
     )
diff --git a/src/profile/history/database.rs b/src/profile/history/database.rs
index 232ca3ae..fede868c 100644
--- a/src/profile/history/database.rs
+++ b/src/profile/history/database.rs
@@ -21,7 +21,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
             `id`         INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
             `profile_id` INTEGER NOT NULL,
             `time`       INTEGER NOT NULL,
-            `request`    TEXT NOT NULL
+            `request`    TEXT NOT NULL,
+
+            FOREIGN KEY (`profile_id`) REFERENCES `profile`(`id`)
         )",
         [],
     )
diff --git a/src/profile/identity.rs b/src/profile/identity.rs
index e3068b9c..9d28e74a 100644
--- a/src/profile/identity.rs
+++ b/src/profile/identity.rs
@@ -27,7 +27,7 @@ impl Identity {
             for auth_record in auth_records {
                 if let Ok(gemini_records) = self.gemini.database.records() {
                     for gemini_record in gemini_records {
-                        if gemini_record.id == auth_record.gemini_id {
+                        if gemini_record.id == auth_record.profile_identity_gemini_id {
                             return Some(gemini_record.pem);
                         }
                     }
diff --git a/src/profile/identity/gemini/auth/database.rs b/src/profile/identity/gemini/auth/database.rs
index a00849cd..648a635d 100644
--- a/src/profile/identity/gemini/auth/database.rs
+++ b/src/profile/identity/gemini/auth/database.rs
@@ -5,10 +5,10 @@ use sqlite::{Connection, Error, Transaction};
 pub struct Table {
     //pub id: i64,
     //pub profile_id: i64,
-    pub gemini_id: i64,
+    pub profile_identity_gemini_id: i64,
 }
 
-/// Storage for `gemini_id` + `url` auth pairs
+/// Storage for `profile_identity_gemini_id` + `url` auth pairs
 pub struct Database {
     connection: Rc<RwLock<Connection>>,
     profile_id: Rc<i64>, // multi-profile relationship
@@ -41,15 +41,18 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
     tx.execute(
         "CREATE TABLE IF NOT EXISTS `profile_identity_gemini_auth`
         (
-            `id`         INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
-            `profile_id` INTEGER NOT NULL,
-            `gemini_id`  INTEGER NOT NULL,
-            `is_active`  INTEGER NOT NULL,
-            `url`        TEXT NOT NULL,
+            `id`                         INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+            `profile_id`                 INTEGER NOT NULL,
+            `profile_identity_gemini_id` INTEGER NOT NULL,
+            `is_active`                  INTEGER NOT NULL,
+            `url`                        TEXT NOT NULL,
+
+            FOREIGN KEY (`profile_id`) REFERENCES `profile`(`id`),
+            FOREIGN KEY (`profile_identity_gemini_id`) REFERENCES `profile_identity_gemini`(`id`),
 
             UNIQUE (
                 `profile_id`,
-                `gemini_id`,
+                `profile_identity_gemini_id`,
                 `is_active`,
                 `url`
             )
@@ -62,15 +65,17 @@ pub fn select(tx: &Transaction, profile_id: i64, url: Option<&str>) -> Result<Ve
     let mut stmt = tx.prepare(
         "SELECT `id`,
                 `profile_id`,
-                `gemini_id` FROM `profile_identity_gemini_auth`
-                            WHERE `profile_id` = ? AND `url` LIKE ?",
+                `profile_identity_gemini_id`
+
+                FROM `profile_identity_gemini_auth`
+                WHERE `profile_id` = ? AND `url` LIKE ?",
     )?;
 
     let result = stmt.query_map((profile_id, url.unwrap_or("%")), |row| {
         Ok(Table {
             //id: row.get(0)?,
             //profile_id: row.get(1)?,
-            gemini_id: row.get(2)?,
+            profile_identity_gemini_id: row.get(2)?,
         })
     })?;
 
diff --git a/src/profile/identity/gemini/database.rs b/src/profile/identity/gemini/database.rs
index ea29d12a..5bcc1f85 100644
--- a/src/profile/identity/gemini/database.rs
+++ b/src/profile/identity/gemini/database.rs
@@ -40,7 +40,9 @@ pub fn init(tx: &Transaction) -> Result<usize, Error> {
         (
             `id`         INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
             `profile_id` INTEGER NOT NULL,
-            `pem`        TEXT NOT NULL
+            `pem`        TEXT NOT NULL,
+
+            FOREIGN KEY (`profile_id`) REFERENCES `profile`(`id`)
         )",
         [],
     )