Keyword Watch 隐私政策

最后更新：2026 年 7 月 19 日

Keyword Watch（关键词趋势监测）是浏览器扩展，用于订阅关键词并监测百度指数与 Google Trends 的搜索热度变化。本政策说明扩展会处理哪些数据，以及如何使用这些数据。

摘要

• 订阅配置、趋势历史与告警均保存在您本机浏览器的 chrome.storage.local 中。
• 扩展不运营自有后端，也不会把您的数据上传给开发者。
• 为获取趋势数据，扩展会把您订阅的关键词（及所选地区）发送给百度指数和/或 Google Trends。
• 扩展不出售用户数据，不用于广告，也不会向无关第三方共享数据。

我们处理的数据

类别	内容	去向
用户内容	订阅名称、关键词、告警模板/灵敏度、可选自定义图标	本地存储；抓取时关键词与地区会发送给所选数据源
网站内容	百度指数 / Google Trends 返回的日度指数或趋势值	本地存储，用于图表与告警
身份验证信息	index.baidu.com 上百度 BDUSS 会话 Cookie 是否存在	仅在内存中检测登录状态；不会保存或由扩展向外传输 Cookie 值
设置	上次检查时间、未读告警状态等	本地存储

扩展不会收集：其他网站的浏览历史、您访问页面的正文、精确位置、通讯录、支付信息，或关于您如何使用扩展的分析/遥测数据。

权限说明

• storage：在本机保存订阅、序列历史、告警与界面状态。
• alarms：按小时执行自动检查。
• cookies：通过观察 BDUSS Cookie 是否存在/出现，判断您是否已登录百度指数，以便登录后立即恢复抓取。Cookie 值不会被扩展持久化。
• 主机权限 https://index.baidu.com/* 与 https://trends.google.com/*：仅为您订阅的关键词向这两个数据源请求趋势数据。

扩展没有内容脚本，不会向任意网站注入代码。

网络请求

在定时检查、浏览器恢复后的补检、检测到百度登录，或您手动刷新时，扩展可能请求：

1. 百度指数（index.baidu.com）：使用浏览器已有登录会话（credentials: include），请求中包含关键词与地区。
2. Google Trends（trends.google.com）：公开网页接口，请求中包含关键词与地区。

上述服务按其自身隐私政策处理请求。Keyword Watch 无法控制百度或 Google 对请求日志的保留。

远程代码

全部可执行逻辑均包含在扩展安装包内。扩展不会下载或执行远程 JavaScript 或 Wasm。

保留与删除

• 本地数据会保留到您删除订阅（会清除对应序列、告警及相关状态）、清除扩展存储，或卸载扩展为止。
• 卸载扩展后，浏览器会移除该扩展的本地存储。

儿童隐私

本扩展不面向 13 岁以下儿童。请勿用其提交儿童的个人信息。

政策变更

若数据处理方式发生重大变化，将更新本页的“最后更新”日期。继续使用即表示接受更新后的政策。

联系方式

如对本政策有疑问，请通过 Chrome 网上应用店商品页上列出的发布者支持渠道联系开发者。

Keyword Watch Privacy Policy

Last updated: July 19, 2026

Keyword Watch is a browser extension that helps you subscribe to keywords and monitor search-interest trends from Baidu Index and Google Trends. This policy explains what data the extension handles and how that data is used.

Summary

• All subscription settings, trend history, and alerts are stored locally in your browser (chrome.storage.local).
• The extension does not operate a backend server and does not upload your data to the developer.
• To fetch trend data, the extension sends your subscribed keywords (and selected region settings) to Baidu Index and/or Google Trends.
• The extension does not sell user data, does not use it for advertising, and does not share it with unrelated third parties.

Data the extension handles

Category	What	Where it goes
User content	Subscription names, keywords, alert template/sensitivity choices, optional custom icons	Stored locally; keywords and region are also sent to the selected data source when fetching
Website content	Daily index/trend values returned by Baidu Index / Google Trends	Stored locally for charts and alerts
Authentication information	Presence of Baidu’s BDUSS session cookie on index.baidu.com	Checked in memory only to detect login; value is never saved or transmitted by the extension
Settings	Last-check timestamps, unread alert state	Stored locally

The extension does not collect browsing history of other sites, page content from sites you visit, precise location, contacts, payment information, or analytics/telemetry about how you use the extension.

Permissions

• storage — Save subscriptions, series history, alerts, and UI state on this device.
• alarms — Run the hourly refresh schedule.
• cookies — Detect whether you are logged in to Baidu Index by observing whether the BDUSS cookie exists or changes. Cookie values are not persisted by the extension.
• Host access to https://index.baidu.com/* and https://trends.google.com/* — Request trend data for your subscribed keywords from those two sources only.

There is no content script. The extension does not inject code into arbitrary websites.

Network requests

When a check runs (hourly, on browser restart catch-up, after Baidu login is detected, or when you tap refresh), the extension may request data from:

1. Baidu Index (index.baidu.com) — using your existing browser login session (credentials: include). Your keywords and selected area are included in the request.
2. Google Trends (trends.google.com) — public web endpoints; your keywords and selected geo are included in the request.

Those services process requests under their own privacy policies. Keyword Watch does not control Baidu’s or Google’s retention of request logs.

Remote code

All executable logic ships inside the extension package. The extension does not download or execute remote JavaScript or Wasm.

Retention and deletion

• Local data remains until you delete a subscription (which removes its series, alerts, and related state), clear the extension’s storage, or uninstall the extension.
• Uninstalling the extension removes its local storage from the browser.

Children’s privacy

The extension is not directed at children under 13. Do not use it to submit personal information about children.

Changes

If this policy changes in a material way, the “Last updated” date above will be revised. Continued use after an update means you accept the revised policy.

Contact

For questions about this policy, contact the publisher through the support channel listed on the Chrome Web Store listing for Keyword Watch.