How to Find the Original Taobao, Weidian or 1688 Link from AllChinaBuy

Section 01

Read the two addresses inside a product link

Suppose a spreadsheet row says “grey sweats” and its button opens AllChinaBuy. You want the source listing because the button no longer shows the product or because you want to check the seller's options. Start by copying the button's link address into plain text. The words printed on the button can differ from the address underneath. Preserve that full address alongside the row's description before changing anything. Use only a public product link for this exercise. A receipt, cart or account page may carry private information.

In older links the outer address can look like www.allchinabuy.com/en/page/buy/ followed by a question mark. Look for a parameter named url. Its value may start with https%3A%2F%2F. Those percent signs represent characters inside a second address. Decoding one layer turns %3A into a colon, %2F into a slash, %3F into a question mark and %3D into an equals sign. In the examples below, decoding the value reveals a marketplace domain and its item identifier.

Keep the outer query and the inner query separate. An ampersand before partnercode in the outer address belongs to the AllChinaBuy link. An encoded %26 inside the url value can separate fields belonging to the seller's link. Removing everything after the first equals sign, or decoding the whole string and then splitting at every ampersand, can discard part of the listing address. If your browser or a link viewer already shows a readable marketplace address, copy that version and retain the original alongside it.

Section 02

Weidian example — find the item number inside the wrapper

A buyer's public post dated 24 November 2024 includes an AllChinaBuy link for grey sweatpants. Inside its url field is the text weidian.com%2Fitem.html%3FitemId%3D5577434850. Decoding it gives https://weidian.com/item.html?itemId=5577434850. The original also carries tracking fields following the item number. The shorter address here preserves the marketplace, the item page and the exact identifier found in the post. The post's description explains why someone saved the link. It does not establish what the seller offers today.

Read the result in three parts. The host is weidian.com, the path is /item.html and the field containing the product number is itemId. Copy all ten digits as text. Other long numbers in the original occur in tracking fields. Picking the longest number, the last number, or the number beside a familiar seller name can send your research to a different record. If you want to compare two spreadsheet rows, make a column for the marketplace and another for the item ID.

Opening the recovered listing is a separate check. Compare the seller name, product images and choices with the old row. A match on the number is meaningful even if the page now requests a login, but it tells you only which destination the old link named. If the live description or available options have changed, record what changed and when you saw it. Do not replace the old evidence with a guess based on a similar photograph.

Section 03

Taobao example — separate the listing from its options

The same dated post includes a shirt with a Taobao address inside the AllChinaBuy wrapper. The identifying part decodes to https://item.taobao.com/item.htm?id=673039534547. Notice the path ends in item.htm and the field is id. Preserve that combination. The longer address in the original post includes a tracking field after the ID. The marketplace and item number are enough to reconstruct this example's listing address, but the shorter version contains no evidence of the size or colour the buyer selected.

Imagine your saved spreadsheet describes a black shirt in medium. Record those words separately from 673039534547. If the live page opens with a different colour selected, compare the option labels, seller and product images before deciding whether medium is still offered. An option code can carry information worth keeping even when you do not know its meaning. Save the full source URL first and use a cleaned copy for comparison. If you only have a screenshot of the shirt, you have a visual lead rather than a verified item number.

Section 04

1688 example — recover the offer and check the unit

A third entry in the post uses an AllChinaBuy link containing detail.1688.com%2Foffer%2F639180864021.html. Here the number is part of the path. The readable address is https://detail.1688.com/offer/639180864021.html. There is no need to add a Taobao id query or change the domain. Doing either would change the destination. This example is useful when a link checker asks for an item number: the number to compare is 639180864021 and the marketplace to record with it is 1688.

Returning to the offer still leaves a practical question. What does one unit in your old row represent? It might describe one garment, a named set or one selected design. Check the unit, pack description, option and quantity on the live offer before comparing prices. If you cannot see them, keep the purchase details unresolved. A saved screenshot showing one photographed jersey does not establish the quantity included in a current offer. The original link is evidence of the listing relationship, even when those commercial details remain unknown.

Section 05

When the link only shows a short code, a shop or a login

Some shared links contain an opaque code rather than a readable marketplace address. You cannot calculate a Taobao or Weidian item ID from an arbitrary short code. If a trusted public share link still opens, follow its ordinary redirect and inspect the destination shown by the browser. If it stops at a maintenance notice, look for the original seller URL in the same spreadsheet row, the author's original post or a previously saved public product screenshot that includes the address. A matching product name alone is a reason to investigate.

Someone searching in German for “AllChinaBuy Link zum Hersteller” may actually want the seller's original listing. Recovering a shop page can help locate the seller, but a shop can list many similar products. A marketplace seller may also be a reseller. If the question is who manufactured the item, a recovered URL by itself does not answer it. Record whether you have found a product page, a storefront or only an agent page. Stop at the last level you can verify.

Section 06

Carry the right evidence into the next step

For each recovered row, save the original wrapper, the extracted marketplace address, its item ID, the selected option if known and the date of the check. In a separate note, describe what the current page actually showed. If two rows share a number but their marketplace domains differ, keep them separate. If they share a marketplace and number but list different sizes, keep the shared listing and both option notes. This avoids losing useful distinctions when several entries look identical in a shortlist.

For a photo lookup, use the marketplace product link and compare any result with the recorded option. A previous warehouse image may help you decide which detail deserves a closer look. For an order issue, preserve the order reference privately and use the platform's official support route. A public item number identifies a listing, while an order reference identifies a transaction. Recovering an old link can solve the first problem even if the second still needs an answer from the platform.

Here is a quick test you can do before sharing the recovered link. Put the long version and your shortened version side by side. Underline the marketplace name in each one and circle the item number. Check that the shorter version still has a product path, then read any fields you removed. If one names a size, colour or SKU, keep a copy with that field and label the shorter address as listing-level only. Send the public product address when asking about the listing. Leave the order number and other private records out of that message.