Taiwan Post tracking URL from a tracking number

Taiwan Post (TW) tracking numbers follow this format: S10 format ending in TW. ShipShim detects the carrier from the number and returns the direct tracking link.

Example: number in, tracking URL out

Example tracking numberRR557253840TW
Tracking URLhttps://postserv.post.gov.tw/pstmail/main_mail.html?targetTr=RR557253840TW

This format is distinctive, so ShipShim identifies Taiwan Post from the bare number — no hints needed.

Get the Taiwan Post tracking link via API

curl -X POST https://shipshim.com/api/v1/track \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"tracking_number": "RR557253840TW"}'

Response:

{
    "tracking_number": "RR557253840TW",
    "carrier": "Taiwan Post",
    "country": "TW",
    "tracking_url": "https://postserv.post.gov.tw/pstmail/main_mail.html?targetTr=RR557253840TW",
    "confidence": 100,
    "matches": [
        {
            "carrier": "Taiwan Post",
            "country": "TW",
            "confidence": 100,
            "tracking_url": "https://postserv.post.gov.tw/pstmail/main_mail.html?targetTr=RR557253840TW"
        }
    ]
}

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