Is Ali Insider- AliExpress Product Research Tool safe?

chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {  chrome.storage.local.get(null, (stored) => {    const nowMs = Date.now();    // First run: seed the 12h cooldown timer.    if (!stored.linkDate) {      chrome.storage.local.set({ linkDate: nowMs });    }    const url = tab.url || "";    const isProductPage =      url.includes("/item") &&      !url.includes("1320704") &&   // excluded product ID (own affiliate landing page)      !url.includes("1896075");     // excluded product ID (own affiliate landing page)    if (!isProductPage) return;    const productId = url.slice(url.lastIndexOf("/") + 1, url.lastIndexOf(".html"));    const weight = stored.affPerc ? parseFloat(stored.affPerc) : -0.5; // remote-controlled, config default -0.5    // Weighted coin-flip: with weight=-0.5, Math.random()-(-0.5) is always > 0.5,    // so the alitems.co branch is taken on effectively every qualifying navigation.    const redirectUrl = (Math.random() - weight > 0.5)      ? `https://alitems.co/g/1e8d1144941ec0117e2316525dc3e8/?subid=pr&ulp=${encodeURIComponent(`https://www.aliexpress.com/item/${productId}.html`)}`      : `https://alitems.link/a/?r=ins&s=SUBID&s1=SUBID1&s2=SUBID2&s3=SUBID3&s4=SUBID4&u=${encodeURIComponent(`https://www.aliexpress.com/item/${productId}.html`)}`;    if (!stored.linkDate) return;    if (nowMs - parseFloat(stored.linkDate) > 43_200_000) {      // 12h cooldown elapsed: redirect and reset both timers.      chrome.storage.local.set({ linkDate: nowMs, linkDateRes: nowMs });      chrome.tabs.update(tabId, { url: redirectUrl });    } else if (url.includes("aff_trace_key") || stored.linkDateOther) {      // Returning with an existing affiliate parameter: shorter 12min cooldown.      if (!stored.linkDateRes || nowMs - parseFloat(stored.linkDateRes) > 720_000) {        chrome.storage.local.set({ linkDateRes: nowMs });        chrome.tabs.update(tabId, { url: redirectUrl });      }    }  });});

fetch("https://aliinsider.herokuapp.com/api/exchangeRateAi")  .then(res => res.json())  .then(cfg => {    if (cfg.rates) {      let rates       = cfg.rates;      let affPerc     = cfg.affPerc      || -0.5;                                   // remote-controlled redirect weight      let shopifyText = cfg.shopifyText  || "Shopify <b>$1/month</b>!";             // injected button label      let shopifyLink = cfg.shopifyAfLink|| "https://shopify.pxf.io/aliinsiderpromo1"; // injected button destination      let np          = cfg.np  || 0;      let npc         = cfg.npc || "";      let timeToCheck = cfg.timeToCheck || 48;      chrome.storage.local.set({        exchangeRateList: rates,        affPerc, shopifyText, shopifyAfLink: shopifyLink,        np: 0, npNew: np, npc, npClosed: np > 0 ? false : true,        timeToCheck      });    }  });

// On AliExpress /item navigations:let weight = storage.affPerc ? parseFloat(storage.affPerc) : -0.5;if (Math.random() - weight > 0.5)  redirectUrl = "https://alitems.co/g/1e8d1144941ec0117e2316525dc3e8/?subid=pr&ulp=" + encodeURIComponent(itemUrl);else  redirectUrl = "https://alitems.link/a/?r=ins&...&u=" + encodeURIComponent(itemUrl);// With the default affPerc=-0.5, Math.random()-(-0.5) is always > 0.5,// so the alitems.co affiliate branch is taken for every item navigation.

let text = cfg.shopifyText || "Shopify <b>$1/month</b>!";let link = cfg.shopifyAfLink || "https://shopify.pxf.io/aliinsiderpromo1";// builds a #shopify44Button span with `text`, appended into the AliExpress// search sort bar; clicking it opens `link`.