Is Monosearch safe?

static get json() {
  return {
    API: {
      recommend: "https://mnsearch.com/media/recommendsite.json",
      advertisement_spot: "https://mnsearch.com/media/advertisement_spot_parameter.json"
    }
  }
}
class bt extends ht {
  constructor(t) {
    super(t)
  }
  exec(t, e, a) {
    return this.sendGetSellerData(t, a)
  }
  sendGetSellerData(t, e) {
    let a = G.json.API,
      i = t.jsonAPI.type;
    return this.param = {
      url: a[i]
    }, this.send({}, e), !0
  }
}

class fr extends Ma {
  constructor() {
    super()
  }
  request() {
    return new Promise(((e, t) => {
      chrome.runtime.sendMessage({
        jsonAPI: {
          type: "recommend"
        }
      }, (t => {
        e(t)
      }))
    }))
  }
}
async start(e) {
  this._eventView.sender = e => {};
  let t = await this._advancedSettingModel.get();
  try {
    let e = await this._monosarchJSONDataModel.request();
    this._targetURL = this.choiceTargetURL(e)
  } catch (e) {}
  let a = await this._monosarchAdvJSONDataModel.request();
  this._advURLs = a, this.startAdv(t)
}
startAdv(e) {
  this._view.targetURL = this._targetURL, this._view.advURLs = this._advURLs, this._view.setMonoSearchAdvertisementEnableFlag(e.monoSearchAdvertisementEnableFlag), this._view.start()
}
choiceTargetURL(e) {
  let t = e.recommend.length;
  return t ? e.recommend[Math.floor(Math.random() * t)].url : ""
}

createRecommendBiggerBanner(e = "detail_product_under", t = "msExProAdvertisementTitle", a = "") {
  let i = this.randRecommendBiggerBanner(this._targetURL);
  return i.url = this._targetURL, At.createBiggerBanner({
    _SHOW_HIDE_CLAZZ: this._SHOW_HIDE_CLAZZ,
    adBannerPrefix: e,
    msg: t,
    clazzName: a,
    openCloseTypeClazzName: this.getOpenCloseTypeClazzName(),
    bannerData: i
  })
}
randRecommendBiggerBanner(e) {
  Math.floor(100 * Math.random());
  let t = this._RECOMMEND_BANNER.HASHI_001,
    a = chrome.i18n.getMessage("msExProAdvertisementTitle");
  return {
    path: t,
    bannerType: 100,
    hrefAtImage: e,
    hrefAtComment: this._PRO_URL,
    bannerTitle: a
  }
}