Tiktok Post: Failed to start video upload: url_ownership_unverified – Please review our URL ownership verification rules at https://developers.tiktok.com/doc/content-posting-api-media-transfer-guide/#pull_from_url

That TikTok error message —

url_ownership_unverified
means TikTok rejected your video upload URL because the domain hosting your media file hasn’t been verified as belonging to your app.

🧩 Why It Happens

When you upload to TikTok using the Content Posting API (pull-from-URL), TikTok first checks whether the video URL’s domain is approved / verified under your TikTok developer app.

For example, if Stackposts sends:

TikTok will verify if yourdomain.com is listed as a verified domain under your TikTok App in the Developer Console.

If it isn’t — you’ll get:

✅ How to Fix It

Step 1: Verify your domain in TikTok Developer Portal

1. Go to your TikTok for Developers Dashboard.

2. Select your App.

3. Navigate to
   “Content Posting → URL Ownership Verification”
   or directly follow this doc:
   https://developers.tiktok.com/doc/content-posting-api-media-transfer-guide/#pull_from_url

4. Add your domain — e.g.
   https://yourdomain.com

5. Download the verification file provided by TikTok (something like tiktok_verify_xxxxx.html).

6. Upload that file to your domain’s root folder so it’s accessible at:
   https://yourdomain.com/tiktok_verify_xxxxx.html

7. Click Verify in TikTok dashboard.

Step 2: Retry the upload

Once the domain shows as Verified, reupload the video in Stackposts.

TikTok will now accept the media URL and continue the video publishing process.

🧠 Notes

• Only HTTPS URLs are accepted.

• You cannot use temporary or third-party CDN URLs (like AWS S3 presigned URLs, Google Drive links, etc.) unless you verify that exact domain.

• If you use Stackposts Cloud Storage, verify your Stackposts site domain instead (e.g., https://app.yourstackposts.com).