diff --git a/lib/upload-confirmation.js b/lib/upload-confirmation.js
index 4de4655..05fd840 100644
--- a/lib/upload-confirmation.js
+++ b/lib/upload-confirmation.js
@@ -32,6 +32,17 @@ function getUrlHost(value) {
   }
 }
 
+function selectPublicUploadUrl(result) {
+  for (const value of [result?.download_url, result?.embed_url]) {
+    if (typeof value !== 'string' || value.trim() === '') continue;
+    try {
+      const url = new URL(value.trim());
+      if (url.protocol === 'https:') return url.href;
+    } catch {}
+  }
+  return '';
+}
+
 function assertUploadConfirmation(result, hoster) {
   const expectedHost = typeof hoster === 'string' ? hoster.trim().toLowerCase() : '';
   const fileCode = typeof result?.file_code === 'string' ? result.file_code.trim() : '';
@@ -63,4 +74,4 @@ function assertUploadConfirmation(result, hoster) {
   throw error;
 }
 
-module.exports = { assertUploadConfirmation };
+module.exports = { assertUploadConfirmation, selectPublicUploadUrl };
diff --git a/main.js b/main.js
index 618c62b..c868313 100644
--- a/main.js
+++ b/main.js
@@ -40,6 +40,7 @@ const { createCollectors } = require('./lib/diagnostics-collectors');
 const { createAgent } = require('./lib/diagnostics-agent');
 const { buildSessionReport, buildSessionReportCsv } = require('./lib/session-report');
 const { buildTerminalJobSnapshots } = require('./lib/upload-recovery');
+const { selectPublicUploadUrl } = require('./lib/upload-confirmation');
 
 const _eventLoopDelay = monitorEventLoopDelay({ resolution: 10 });
 _eventLoopDelay.enable();
@@ -982,8 +983,7 @@ function flattenHistoryForExport(history) {
       for (const result of results) {
         // Only accept real URLs. file_code alone is just an opaque ID and
         // ends up looking like "nur sone Nummerierung" in the CSV.
-        const rawLink = result && (result.download_url || result.embed_url) || '';
-        const link = /^https?:\/\//i.test(String(rawLink)) ? String(rawLink) : '';
+        const link = selectPublicUploadUrl(result);
         rows.push({
           batchId,
           batchTimestamp,
@@ -2158,7 +2158,7 @@ ipcMain.handle('start-upload', async (_event, payload) => {
       });
     }
     if (data.status === 'done' && data.result) {
-      const link = data.result.download_url || data.result.embed_url || data.result.file_code || '';
+      const link = selectPublicUploadUrl(data.result);
       if (link) {
         if (shouldLogHosterToFile(data.hoster)) {
           appendUploadLog(data.hoster || '', link, data.fileName || '');
diff --git a/scripts/verify-public-release.mjs b/scripts/verify-public-release.mjs
index 387964f..6432b60 100644
--- a/scripts/verify-public-release.mjs
+++ b/scripts/verify-public-release.mjs
@@ -30,6 +30,7 @@ const sourceFiles = [
   'lib/file-discovery.js',
   'lib/folder-monitor.js',
   'lib/hosters.js',
+  'lib/hoster-transport-error.js',
   'lib/ip-allowlist.js',
   'lib/log-mode.js',
   'lib/log-policy.js',
@@ -111,6 +112,7 @@ const sourceFiles = [
   'tests/history-status.test.js',
   'tests/history-retention.test.js',
   'tests/hosters.test.js',
+  'tests/hoster-recovery-provenance.test.js',
   'tests/i18n.test.js',
   'tests/ip-allowlist.test.js',
   'tests/log-mode.test.js',
diff --git a/tests/upload-confirmation.test.js b/tests/upload-confirmation.test.js
index 9bcbeba..b480143 100644
--- a/tests/upload-confirmation.test.js
+++ b/tests/upload-confirmation.test.js
@@ -1,7 +1,14 @@
 const test = require('node:test');
 const assert = require('node:assert/strict');
 
-const { assertUploadConfirmation } = require('../lib/upload-confirmation');
+const { assertUploadConfirmation, selectPublicUploadUrl } = require('../lib/upload-confirmation');
+
+test('selects only a real public URL for logs and exports', () => {
+  assert.equal(selectPublicUploadUrl({ download_url: 'https://doodstream.com/d/abc123', file_code: 'abc123' }), 'https://doodstream.com/d/abc123');
+  assert.equal(selectPublicUploadUrl({ embed_url: 'https://voe.sx/e/abc123', file_code: 'abc123' }), 'https://voe.sx/e/abc123');
+  assert.equal(selectPublicUploadUrl({ download_url: 'javascript:alert(1)', file_code: 'abc123' }), '');
+  assert.equal(selectPublicUploadUrl({ file_code: 'abc123' }), '');
+});
 
 test('materializes canonical Doodstream URLs from a confirmed file code', () => {
   assert.deepEqual(