Is AliExpress Image Search - AliCompare safe?

Medium risk

AliCompare opens a hidden AliExpress affiliate redirect tab when you reach checkout.

On AliExpress checkout confirmation pages, the extension immediately asks its background worker to open an inactive tab to an AliExpress affiliate redirect link and closes the tab after it loads. This action is throttled with local storage for about 15 minutes, and the observed data involved is the affiliate URL/tab event rather than checkout contents.

alicompare.mev4.2.1Chrome Web Store
48Risk
Who publishes it

alicompare.me - no other listings under this identity, 1 shared hostname

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
alicompare.me

Shared hosts - 1 hostname

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

alicompare.me
Also called by 1 other listing: Etsy Image Search

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Findings

AliExpress Checkout Triggers Off-Screen Affiliate Redirect

At AliExpress checkout, the content script triggers a hidden tab to the extension's own affiliate link (s.click.aliexpress.com/e/_Dnnbq1Z), then closes it, overriding any existing affiliate tag so the extension becomes the referrer.

Severity
Medium unwanted
Type
Unexpected
CWE
CWE-506
Source
Dynamic sandbox
What actually happens
You did this

You reach the order-confirmation page during checkout on AliExpress.

The extension did this

The extension opens a hidden tab to its own AliExpress affiliate link, then closes it once loaded, placing itself as referrer just before your order completes.

No tab switch or notification appears; the whole sequence runs in the background service worker.

The code that does this

The content script and the background handler it triggers, from the extension's shipping source.

Readable version

The checkout content script — runs only on the order-confirmation page

// manifest.json content_scripts match: https://*.aliexpress.com/p/trade/confirm.html*(() => {  chrome.runtime.sendMessage({ cmd: "OPEN_AFF" });})();

The message listener

chrome.runtime.onMessage.addListener((message, sender) => {  switch (message.cmd) {    case "BACKGROUND_START_MODAL":      openImageSearchModal(sender.tab.id, message.data.srcUrl).catch(console.log);      break;    case "OPEN_AFF":      openAffiliateTab().catch(console.log);  }});

openAffiliateTab() — the throttle-gated redirect

const AFF_THROTTLE_KEY = "LAST_AFF_OPEN";async function openAffiliateTab() {  const lastOpened = (await chrome.storage.local.get([AFF_THROTTLE_KEY]))[AFF_THROTTLE_KEY];  if (Date.now() - lastOpened < 900000) return; // skip if under 15 minutes since the last redirect  chrome.tabs.create({ active: false, url: "https://s.click.aliexpress.com/e/_Dnnbq1Z" }, (tab) => {    chrome.tabs.onUpdated.addListener(function onLoaded(tabId, info) {      if (info.status === "complete" && tabId === tab.id) {        chrome.tabs.remove(tabId);        chrome.tabs.onUpdated.removeListener(onLoaded);      }    });    chrome.storage.local.set({ [AFF_THROTTLE_KEY]: Date.now() });  });}
Captured request
GEThttps://www.aliexpress.com/?aff_fcid=7f5fe297d2e64290b12df872d6542e0c-1786950077048-06085-_Dnnbq1Z&tt=CPS_NORMAL&aff_fsk=_Dnnbq1Z&aff_platform=portals-tool&sk=_Dnnbq1Z&aff_trace_key=7f5fe297d2e64290b12df872d6542e0c-1786950077048-06085-_Dnnbq1Z&terminal_id=3f3a373bd7264c4ab8c7f0ae0899cc0c&afSmartRedirect=y

Landing page of AliExpress's CPS (cost-per-sale) affiliate click-through flow (tt=CPS_NORMAL), the mechanism AliExpress uses for last-click commission attribution. Every affiliate parameter in the URL traces back to the extension's own short link (_Dnnbq1Z), not to whatever site or tag referred the shopper to AliExpress originally.

What's stored on your device

Timestamp set when the affiliate tab opens; checked before firing again, limiting redirects to once per 15 minutes.

Location
chrome.storage.local key LAST_AFF_OPEN
Contents
{  "LAST_AFF_OPEN": 1788013920000}
Where the checkout-time redirect lands
    • s.click.aliexpress.com

    AliExpress's own affiliate short-link service. The extension's hardcoded link (/e/_Dnnbq1Z) opens in an inactive tab on every throttle-eligible checkout.

    • aliexpress.com

    The short link server-side redirects here, setting the extension's affiliate parameters as the referral credited for the order.

Reproduce it yourself

Hooks chrome.tabs.create in the extension's own service worker console and logs when it opens the affiliate-redirect tab, so you can watch the behavior fire in real time.

Requires
  • Chrome with Developer mode enabled
checkout-affiliate-redirect-watch.js · js
(function() {  const origCreate = chrome.tabs.create;  chrome.tabs.create = function(props, cb) {    if (props && props.url && props.url.includes('s.click.aliexpress.com')) {      console.log('[AFF-WATCH] affiliate tab opened:', props.url, 'active=', props.active);    }    return origCreate.call(chrome.tabs, props, cb);  };  console.log('[AFF-WATCH] installed. Visit an AliExpress order-confirmation page to trigger.');})();
How to run it
  1. 1Install it.
  2. 2In chrome://extensions (Developer mode), open AliCompare's service worker console.
  3. 3Paste this script into DevTools.
  4. 4Visit an order-confirmation page (aliexpress.com/p/trade/confirm.html); watch for [AFF-WATCH].

What it can do

Permissions this extension asks for, as declared in version 4.2.1. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    <all_urls>

  • Add items to the right-click menu

    contextMenus

  • Block and redirect the requests your browser makes

    declarativeNetRequest

  • Read and change cookies, including the ones that keep you signed in

    cookies

  • Run its own code inside the pages you visit

    scripting

  • Store data in your browser

    storage

Where it sends data

Destinations our analysis observed AliExpress Image Search - AliCompare contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • s.click.aliexpress.com

    AliExpress Image Search - AliCompare sends data to s.click.aliexpress.com. 24 other extensions we have analysed send data here.

Updated 30 September 2026mmjbociiiafjimjiddoegfljjomglfoc