Helps Shein sellers identify trending products, analyze competitor data, track historical sales/pricing, find similar products across platforms (Shein, Temu, 1688, Amazon), and source goods from 1688 — solving the problem of inefficient manual product research in cross-border e-commerce

User installs the extension and browses Shein/Temu product pages. The content script (sheinContentScript.js) injects data overlays showing sales history, pricing trends, and competitor data directly on product pages. The extension communicates with the sheinshuju.com backend API to fetch analytics data. Users can also use popup controls and context menus for image search (across Shein, Temu, 1688, Amazon) and image downloads. The apiContentScript.js bridges the extension with the sheinshuju.com web dashboard for additional features.

Target users: Shein sellers and cross-border e-commerce merchants / Product researchers analyzing Shein marketplace trends / Dropshippers looking for sourcing from 1688 to Shein/Temu

Source code is heavily minified (background.js 342KB, sheinContentScript.js 890KB, popup.js 256KB), making exact flow analysis difficult
Cannot definitively confirm whether the extension enforces login at the API level or if sheinshuju.com offers anonymous access
Cannot verify whether the destination service sheinshuju.com has paid plans beyond the free extension

Monetization

No paid features detected

The extension title explicitly states '免费' (free) and the description declares '永久免费' (permanently free). No premium, VIP, subscription, payment, or billing keywords were found in the source code. All 'pro' and 'license' matches are from embedded library headers (jQuery, Lodash, jsrsasign, CryptoJS) — not paid feature references. No Stripe, payment platform, or upgrade UI was detected.

Confidence: 85
Payment platform: --
Source: AI / Medium
Login required: Yes
Reason: The extension heavily communicates with api.sheinshuju.com backend (18 references to www.sheinshuju.com, 8 to api.sheinshuju.com in external hosts). It opens sheinshuju.com/plugin/welcome on install and redirects users to the sheinshuju.com web service. The extension injects apiContentScript.js on sheinshuju.com/geekbi.com domains to bridge the extension with the web service. This pattern suggests users need an account on the destination service to access data features. However, no explicit login form was found in the extension code itself — the login likely happens on the sheinshuju.com web app.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

敏感权限：declarativeNetRequestWithHostAccess
扩展能力较强：cookies、storage、activeTab、tabs、scripting
主机权限覆盖范围较宽

Publisher

极鲸云

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access