diff --git a/package-lock.json b/package-lock.json
index dd45c49..9d2c786 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,7 @@
         "@astrolib/analytics": "^0.6.1",
         "@astrolib/seo": "^1.0.0-beta.8",
         "@fontsource-variable/inter": "^5.1.1",
+        "@tippyjs/react": "^4.2.6",
         "@types/react": "^19.0.10",
         "@types/react-dom": "^19.0.4",
         "astro": "^5.2.3",
@@ -2329,6 +2330,16 @@
         "fast-glob": "3.3.3"
       }
     },
+    "node_modules/@popperjs/core": {
+      "version": "2.11.8",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.8.tgz",
+      "integrity": "sha512-P1st0aksCrn9sGZhp8GMYwBnQsbvAWsZAX44oXNNvLHGqAOcoVxmjZiohstwQ7SqKnbR47akdNi+uleWD8+g6A==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/popperjs"
+      }
+    },
     "node_modules/@qwik.dev/partytown": {
       "version": "0.11.1",
       "resolved": "https://registry.npmjs.org/@qwik.dev/partytown/-/partytown-0.11.1.tgz",
@@ -2731,6 +2742,19 @@
         "tailwindcss": ">=3.0.0 || insiders || >=4.0.0-alpha.20 || >=4.0.0-beta.1"
       }
     },
+    "node_modules/@tippyjs/react": {
+      "version": "4.2.6",
+      "resolved": "https://registry.npmjs.org/@tippyjs/react/-/react-4.2.6.tgz",
+      "integrity": "sha512-91RicDR+H7oDSyPycI13q3b7o4O60wa2oRbjlz2fyRLmHImc4vyDwuUP8NtZaN0VARJY5hybvDYrFzhY9+Lbyw==",
+      "license": "MIT",
+      "dependencies": {
+        "tippy.js": "^6.3.1"
+      },
+      "peerDependencies": {
+        "react": ">=16.8",
+        "react-dom": ">=16.8"
+      }
+    },
     "node_modules/@trysound/sax": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/@trysound/sax/-/sax-0.2.0.tgz",
@@ -11123,6 +11147,15 @@
         "url": "https://github.com/sponsors/SuperchupuDev"
       }
     },
+    "node_modules/tippy.js": {
+      "version": "6.3.7",
+      "resolved": "https://registry.npmjs.org/tippy.js/-/tippy.js-6.3.7.tgz",
+      "integrity": "sha512-E1d3oP2emgJ9dRQZdf3Kkn0qJgI6ZLpyS5z6ZkY1DF3kaQaBsGZsndEpHwx+eC+tYM41HaSNvNtLx8tU57FzTQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@popperjs/core": "^2.9.0"
+      }
+    },
     "node_modules/tlds": {
       "version": "1.259.0",
       "resolved": "https://registry.npmjs.org/tlds/-/tlds-1.259.0.tgz",
diff --git a/package.json b/package.json
index dc8e987..37451cd 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
     "@astrolib/analytics": "^0.6.1",
     "@astrolib/seo": "^1.0.0-beta.8",
     "@fontsource-variable/inter": "^5.1.1",
+    "@tippyjs/react": "^4.2.6",
     "@types/react": "^19.0.10",
     "@types/react-dom": "^19.0.4",
     "astro": "^5.2.3",
diff --git a/src/assets/styles/tailwind.css b/src/assets/styles/tailwind.css
index 01c69d0..96aabe5 100644
--- a/src/assets/styles/tailwind.css
+++ b/src/assets/styles/tailwind.css
@@ -98,3 +98,21 @@
  .dd *:first-child {
   margin-top: 0;
  }
+
+/* Custom Tippy.js theme for light/dark mode */
+.tippy-box[data-theme~='devnet'] {
+  background-color: #fff;
+  color: #222;
+  border-radius: 12px;
+  box-shadow: 0 4px 24px rgba(0,0,0,0.10);
+  font-size: 1rem;
+  padding: 0.75rem 1rem;
+}
+.dark .tippy-box[data-theme~='devnet'] {
+  background-color: #23272f;
+  color: #f3f4f6;
+  box-shadow: 0 4px 24px rgba(0,0,0,0.40);
+}
+.tippy-box[data-theme~='devnet'] .tippy-arrow {
+  color: inherit;
+}
diff --git a/src/components/UptimeStatusIsland.jsx b/src/components/UptimeStatusIsland.jsx
index a1b13d8..ce44bca 100644
--- a/src/components/UptimeStatusIsland.jsx
+++ b/src/components/UptimeStatusIsland.jsx
@@ -1,6 +1,8 @@
 import React, { useState, useEffect, useCallback, useRef } from 'react';
-import { FiAward, FiPercent, FiActivity } from 'react-icons/fi';
+import { FiAward, FiPercent, FiActivity, FiCheckCircle, FiClock, FiGlobe, FiLock } from 'react-icons/fi';
 import { DateTime } from 'luxon';
+import Tippy from '@tippyjs/react';
+import 'tippy.js/dist/tippy.css';
 
 function getStatusColor(validCert) {
   if (validCert === false) return 'bg-red-600';
@@ -55,6 +57,39 @@ function formatLocalTime(rawTime, zone = 'utc') {
     : 'Invalid DateTime';
 }
 
+function HeartbeatPopup({ hb, userZone, monitor }) {
+  const localTime = hb ? formatLocalTime(hb.time, userZone) : '';
+  const utcTime = hb ? formatLocalTime(hb.time, 'utc') : '';
+  return (
+    <div style={{ minWidth: 220 }}>
+      <div style={{ display: 'flex', alignItems: 'center', marginBottom: 4 }}>
+        <FiCheckCircle color={hb.status === 1 ? 'green' : 'red'} style={{ marginRight: 6 }} />
+        <b>{hb.status === 1 ? 'Up' : 'Down'}</b>
+      </div>
+      <div style={{ display: 'flex', alignItems: 'center' }}>
+        <FiClock style={{ marginRight: 6 }} />
+        Local: {localTime}
+      </div>
+      <div style={{ display: 'flex', alignItems: 'center' }}>
+        <FiGlobe style={{ marginRight: 6 }} />
+        UTC: {utcTime}
+      </div>
+      <div style={{ display: 'flex', alignItems: 'center' }}>
+        <FiActivity style={{ marginRight: 6 }} />
+        Ping: {hb.ping ?? '--'} ms
+      </div>
+      <div style={{ display: 'flex', alignItems: 'center' }}>
+        <FiPercent style={{ marginRight: 6 }} />
+        Uptime 24h: {monitor.uptime24h?.toFixed(2) ?? '--'}%
+      </div>
+      <div style={{ display: 'flex', alignItems: 'center' }}>
+        <FiLock style={{ marginRight: 6 }} />
+        Cert valid for: {monitor.certExpiryDaysRemaining ?? '--'} days
+      </div>
+    </div>
+  );
+}
+
 export default function UptimeStatusIsland() {
   const [data, setData] = useState(null);
   const [loading, setLoading] = useState(true);
@@ -239,18 +274,20 @@ export default function UptimeStatusIsland() {
                           {Array.from({ length: 40 }).map((_, i) => {
                             const hbArr = monitor.heartbeatHistory ?? [];
                             const hb = hbArr.slice(-40)[i];
-                            const localTime = hb ? formatLocalTime(hb.time, userZone) : '';
-                            const utcTime = hb ? formatLocalTime(hb.time, 'utc') : '';
                             return (
-                              <span
+                              <Tippy
                                 key={i}
-                                title={
-                                  hb
-                                    ? `Status: ${hb.status === 1 ? 'Up' : 'Down'}\nLocal: ${localTime}\nUTC: ${utcTime}`
-                                    : ''
-                                }
-                                className={`w-full h-4 rounded-sm ${hb ? getHeartbeatColor(hb.status) : 'bg-gray-400 dark:bg-gray-600'} block`}
-                              ></span>
+                                content={<HeartbeatPopup hb={hb} userZone={userZone} monitor={monitor} />}
+                                placement="top"
+                                animation="shift-away"
+                                theme="devnet"
+                                delay={[0, 0]}
+                              >
+                                <span
+                                  className={`w-full h-4 rounded-sm ${hb ? getHeartbeatColor(hb.status) : 'bg-gray-400 dark:bg-gray-600'} block`}
+                                  style={{ cursor: 'pointer' }}
+                                ></span>
+                              </Tippy>
                             );
                           })}
                         </div>