diff --git a/.changeset/defer-data-api-init-to-dom-content-loaded.md b/.changeset/defer-data-api-init-to-dom-content-loaded.md
new file mode 100644
index 000000000..1b4f5fc6b
--- /dev/null
+++ b/.changeset/defer-data-api-init-to-dom-content-loaded.md
@@ -0,0 +1,5 @@
+---
+"@tabler/core": patch
+---
+
+Fixed tab, tooltip, popover, dropdown and toast init running before `DOMContentLoaded`, dropping early listeners.
diff --git a/core/js/src/dropdown.ts b/core/js/src/dropdown.ts
index 104c2a896..39bbbde43 100644
--- a/core/js/src/dropdown.ts
+++ b/core/js/src/dropdown.ts
@@ -1,15 +1,18 @@
 import { Dropdown } from './bootstrap'
 import Manipulator from './bootstrap/dom/manipulator'
+import { onDOMContentLoaded } from './bootstrap/util/index'
 
 // js-docs-start dropdown-init
-for (const dropdownTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="dropdown"], [data-tblr-toggle="dropdown"]')) {
-  try {
-    const options = {
-      boundary: Manipulator.getDataAttribute(dropdownTriggerEl, 'boundary') === 'viewport' ? document.documentElement : ('clippingParents' as const),
+onDOMContentLoaded(() => {
+  for (const dropdownTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="dropdown"], [data-tblr-toggle="dropdown"]')) {
+    try {
+      const options = {
+        boundary: Manipulator.getDataAttribute(dropdownTriggerEl, 'boundary') === 'viewport' ? document.documentElement : ('clippingParents' as const),
+      }
+      Dropdown.getOrCreateInstance(dropdownTriggerEl, options)
+    } catch (error) {
+      console.error(error)
     }
-    Dropdown.getOrCreateInstance(dropdownTriggerEl, options)
-  } catch (error) {
-    console.error(error)
   }
-}
+})
 // js-docs-end dropdown-init
diff --git a/core/js/src/popover.ts b/core/js/src/popover.ts
index a3bd66f05..1f55c2ab8 100644
--- a/core/js/src/popover.ts
+++ b/core/js/src/popover.ts
@@ -1,16 +1,19 @@
 import { Popover } from './bootstrap'
 import Manipulator from './bootstrap/dom/manipulator'
+import { onDOMContentLoaded } from './bootstrap/util/index'
 
 // js-docs-start popover-init
-for (const popoverTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="popover"], [data-tblr-toggle="popover"]')) {
-  try {
-    const options = {
-      delay: Manipulator.getDataAttribute(popoverTriggerEl, 'delay') ?? { show: 50, hide: 50 },
-      placement: Manipulator.getDataAttribute(popoverTriggerEl, 'placement') ?? 'auto',
+onDOMContentLoaded(() => {
+  for (const popoverTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="popover"], [data-tblr-toggle="popover"]')) {
+    try {
+      const options = {
+        delay: Manipulator.getDataAttribute(popoverTriggerEl, 'delay') ?? { show: 50, hide: 50 },
+        placement: Manipulator.getDataAttribute(popoverTriggerEl, 'placement') ?? 'auto',
+      }
+      Popover.getOrCreateInstance(popoverTriggerEl, options)
+    } catch (error) {
+      console.error(error)
     }
-    Popover.getOrCreateInstance(popoverTriggerEl, options)
-  } catch (error) {
-    console.error(error)
   }
-}
+})
 // js-docs-end popover-init
diff --git a/core/js/src/tab.ts b/core/js/src/tab.ts
index 380d84176..d5e996ffb 100644
--- a/core/js/src/tab.ts
+++ b/core/js/src/tab.ts
@@ -1,4 +1,5 @@
 import { Tab } from './bootstrap'
+import { onDOMContentLoaded } from './bootstrap/util/index'
 
 // js-docs-start tab-init
 export const EnableActivationTabsFromLocationHash = (): void => {
@@ -23,5 +24,5 @@ export const EnableActivationTabsFromLocationHash = (): void => {
   }
 }
 
-EnableActivationTabsFromLocationHash()
+onDOMContentLoaded(EnableActivationTabsFromLocationHash)
 // js-docs-end tab-init
diff --git a/core/js/src/toast.ts b/core/js/src/toast.ts
index 77a196342..1e27ceb24 100644
--- a/core/js/src/toast.ts
+++ b/core/js/src/toast.ts
@@ -1,22 +1,25 @@
 import { Toast } from './bootstrap'
 import SelectorEngine from './bootstrap/dom/selector-engine'
+import { onDOMContentLoaded } from './bootstrap/util/index'
 
 // js-docs-start toast-init
-for (const toastTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="toast"], [data-tblr-toggle="toast"]')) {
-  try {
-    // A trigger whose target is missing is left alone instead of getting a
-    // click handler that throws.
-    const toastEl = SelectorEngine.getElementFromSelector(toastTriggerEl)
-    if (!toastEl) {
-      continue
-    }
+onDOMContentLoaded(() => {
+  for (const toastTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="toast"], [data-tblr-toggle="toast"]')) {
+    try {
+      // A trigger whose target is missing is left alone instead of getting a
+      // click handler that throws.
+      const toastEl = SelectorEngine.getElementFromSelector(toastTriggerEl)
+      if (!toastEl) {
+        continue
+      }
 
-    const toast = Toast.getOrCreateInstance(toastEl) as InstanceType<typeof Toast>
-    toastTriggerEl.addEventListener('click', () => {
-      toast.show()
-    })
-  } catch (error) {
-    console.error(error)
+      const toast = Toast.getOrCreateInstance(toastEl) as InstanceType<typeof Toast>
+      toastTriggerEl.addEventListener('click', () => {
+        toast.show()
+      })
+    } catch (error) {
+      console.error(error)
+    }
   }
-}
+})
 // js-docs-end toast-init
diff --git a/core/js/src/tooltip.ts b/core/js/src/tooltip.ts
index d0345a67b..c481fd75a 100644
--- a/core/js/src/tooltip.ts
+++ b/core/js/src/tooltip.ts
@@ -1,19 +1,22 @@
 import { Tooltip } from './bootstrap'
 import Manipulator from './bootstrap/dom/manipulator'
+import { onDOMContentLoaded } from './bootstrap/util/index'
 
 // js-docs-start tooltip-init
 // One element with a broken config must not stop the rest of the bundle, so
 // every instance is created on its own. `data-bs-delay` on the element wins
 // over the shorter default delay.
-for (const tooltipTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="tooltip"], [data-tblr-toggle="tooltip"]')) {
-  try {
-    const options = {
-      delay: Manipulator.getDataAttribute(tooltipTriggerEl, 'delay') ?? { show: 50, hide: 50 },
-      placement: Manipulator.getDataAttribute(tooltipTriggerEl, 'placement') ?? 'auto',
+onDOMContentLoaded(() => {
+  for (const tooltipTriggerEl of document.querySelectorAll<HTMLElement>('[data-bs-toggle="tooltip"], [data-tblr-toggle="tooltip"]')) {
+    try {
+      const options = {
+        delay: Manipulator.getDataAttribute(tooltipTriggerEl, 'delay') ?? { show: 50, hide: 50 },
+        placement: Manipulator.getDataAttribute(tooltipTriggerEl, 'placement') ?? 'auto',
+      }
+      Tooltip.getOrCreateInstance(tooltipTriggerEl, options)
+    } catch (error) {
+      console.error(error)
     }
-    Tooltip.getOrCreateInstance(tooltipTriggerEl, options)
-  } catch (error) {
-    console.error(error)
   }
-}
+})
 // js-docs-end tooltip-init
diff --git a/docs/content/ui/components/tab.mdx b/docs/content/ui/components/tab.mdx
index dd134dcf5..3ac2e2b2b 100644
--- a/docs/content/ui/components/tab.mdx
+++ b/docs/content/ui/components/tab.mdx
@@ -233,6 +233,8 @@ Tabler activates the tab that matches the URL hash on page load, so you can link
 
 <CodeDocs name="tab-init" file="core/js/src/tab.ts" />
 
+This runs on `DOMContentLoaded`, so `show.bs.tab` and `shown.bs.tab` for the hash tab fire before any script that itself waits for `DOMContentLoaded`. Add the listener earlier (a plain `<script>`, not one that is deferred or waits for the load event), or read `Tab.getInstance(triggerEl)` after `DOMContentLoaded` to find the tab that was activated.
+
 ## Accessibility
 
 - Wrap the tabs in an element with `role="tablist"`, give each trigger `role="tab"` and each panel `role="tabpanel"`, and link them with `aria-controls` and `aria-labelledby`.