谷歌(Google)使用多种技术来防止不必要的流量滥用其搜索引擎。可能导致问题的一种技术是您可能会看到的Google“异常流量”消息，例如，如果您在短时间内执行了太多搜索。但是，出现此消息还有其他原因。
如果此特定的Google错误使您无法有效使用Google搜索引擎，您可以按照以下步骤解决问题。
是什么导致了 Google 异常流量错误？(What Causes a Google Unusual Traffic Error?)
如果您看到Google异常流量错误消息，这通常表明Google怀疑您的网络流量在某些方面存在问题。在这种情况下，异常流量通常是指由黑客、机器人、恶意软件不必要的搜索请求引起的自动流量或恶意流量。
它也可能是由以某种方式将您标记为“不寻常”的搜索引起的，例如定期或重复使用高级搜索运算符。
这通常不是您需要担心的错误消息，因为它通常可以通过一些简单的修复来解决。例如，如果您使用的是公用计算机(public computer)，您可能会发现您使用的互联网连接（和传出 IP 地址）被太多设备共享，导致Google限制了搜索。
它也可能是由虚拟专用网络 ( VPN ) 引起的，其中通过VPN服务器路由的网络流量会导致Google对搜索次数进行速率限制。
您可能还需要检查可能的恶意软件。如果您的 PC 被感染，黑客可能会使用您的互联网连接向Google的搜索引擎发送大量流量，Google将通过“检测到异常流量”消息阻止该搜索引擎。如果发生这种情况，您需要紧急扫描恶意软件。(scan for malware)
问题也可能归结于您自己运行的应用程序或脚本。例如，如果您试图过快地抓取 Google 搜索结果， (scrape Google search results)Google会在短时间内阻止搜索。
成功执行验证码测试(Successfully Perform the CAPTCHA Test)
如果Google没有正当理由（据您所知）阻止您的搜索流量，您通常可以通过执行CAPTCHA 测试(CAPTCHA test)来绕过它。CAPTCHA是一个系统，旨在通过引入“只有”使用典型网络浏览器的人类才能解决的测试来限制非人类网络流量（例如自动抓取机器人）。
虽然CAPTCHA系统不再像以前那样万无一失，但Google仍然继续使用它来限制异常网络流量。如果您的Google搜索在某些方面受到限制，请在CAPTCHA框中选中(CAPTCHA)我不是机器人(I’m not a robot )复选框并执行测试。
测试通常涉及通过选择图像（例如，选择所有带有可见树的图像）来识别基于设定场景的图像。视障人士还可以选择听到向他们朗读的验证码。
选择正确的图像后，选择“验证(Verify)”按钮应允许您执行搜索。但是，如果您未通过测试，或者如果Google继续怀疑您的流量是自动化的，则您需要重复该过程。
如果您仍然遇到问题，请考虑使用您的Google帐户登录或切换到其他网络浏览器（例如Google Chrome）。这是向Google的服务器证明您是合法搜索用户的好方法，可以减少您的搜索在未来受到速率限制的可能性。
暂时限制您的搜索（并使用更少的搜索运算符）(Temporarily Limit Your Searches (and Use Fewer Search Operators))
如果您在短时间内进行大量搜索，特别是如果您使用自动化工具（例如抓取机器人）进行搜索，则可能需要暂时限制搜索。
您可能需要这样做一两个小时，但可能需要 24 小时才能解除对 IP 地址的任何速率限制。您可能还需要限制您在搜索中使用的高级 Google 搜索运算符的数量。(advanced Google search operators)
这是因为搜索运营商（例如site:online-tech-tips.com）是自动搜索的增加标志。大多数Google搜索用户不使用运算符进行搜索，因此Google可以轻松地将这些运算符过滤掉以获取流量。如果您确实需要使用运算符，请谨慎使用它们以降低被速率限制的机会。
从 VPN 断开连接（或切换 Internet 连接）(Disconnect from a VPN (or Switch Internet Connections))
虚拟专用网络（或VPN）通常用于隐藏您的真实 IP 地址，从而为您提供额外的在线隐私。但是，如果您连接到VPN，您可能会发现看到Google异常流量错误消息的机会增加了。
VPN提供商通过其可支配的数千台服务器路由您的流量，但它也通过相同的服务器路由来自其他VPN订阅者的流量。就像使用公共 Internet 连接（例如共享 PC 或公共WiFi ）一样，这可能会导致同一 IP 地址上的大量共享Google查询。(Google)
这将导致Google阻止或限制通过该 IP 地址进行的搜索。Google还可能将某些 IP 范围（例如VPN(VPNs)使用的 IP 范围）识别为有风险的来源，并对其进行速率限制。
解决这些问题的最佳方法是断开您用于进行搜索的任何VPN连接。(VPN)如果这不起作用，您可能需要考虑切换到另一个 Internet 连接（例如移动数据连接）以绕过该问题。
检查恶意软件(Check for Malware)
如果您不确定Google异常流量消息的原因，它可能表明您的 PC 或本地网络上存在恶意软件感染。该恶意软件可能会使用您的互联网连接进行大量搜索查询以抓取数据或以其他方式对 Google 本身执行分布式拒绝服务 (DDoS) 攻击。(distributed denial of service (DDoS) attack)
虽然您可以使用第三方防病毒或反恶意软件，但这并不是绝对必要的。Windows 10 包含一个名为Microsoft Defender(Microsoft Defender)的内置安全解决方案，可用于自动检查（并删除）可能的恶意软件感染。
- 要打开Microsoft Defender，请右键单击“开始(Start)”菜单并选择“设置”(Settings)选项。
- 在Windows 设置(Windows Settings)菜单中，选择更新和安全(Update & Security )> Windows 安全(Windows Security )>打开 Windows 安全(Open Windows Security)。
- Windows 将在新窗口中打开安全菜单。(Security)从菜单中选择病毒和威胁防护，然后选择(Virus & threat protection )检查更新(Check for updates)以确保您的防病毒数据库是最新的。
- 更新Microsoft Defender(Microsoft Defender)防病毒数据库后，选择当前威胁(Current threats)类别下方列出的扫描选项。(Scan options)
- 选择Microsoft Defender 脱机扫描(Microsoft Defender Offline Scan)选项，然后选择立即扫描(Scan now )按钮。
Windows 将重新启动您的 PC，对您的系统驱动器执行启动级扫描，以检查是否存在任何恶意软件感染。按照(Follow)屏幕上的任何其他说明删除(remove any stubborn malware)它检测到的任何顽固恶意软件。
您可能需要在连接到本地网络并共享相同公共 IP 地址的所有其他设备上重复这些步骤。
有效使用谷歌(Using Google Effectively)
Google不寻常的流量错误消息不必担心，但如果您经常看到它，您可能需要重新考虑您的搜索习惯。短时间内过多的搜索（或使用高级搜索运算符进行的搜索）会导致它，但恶意软件感染也会导致它，因此请务必(Too)定期检查您的网络(check your network regularly)是否受到感染。
如果您担心Google正在收集您的数据，您可能需要下载您的个人数据(download your personal data)进行检查。如果您不满意，您可以随时切换到以隐私为重点的搜索引擎(privacy-focused search engine)，例如DuckDuckGo，以隐藏您的搜索或使用某些浏览器工具来限制您在线共享的数据量。
What Is a Google “Unusual Traffic” Error and How to Fix It
Google uses seνeral techniques tо prevent unnecessary traffiс from abusing its searсh engine. One technique that can cаuse problems is the Google “unusual traffic” message that you might seе, for instance, if you’ve performed tоo many searches in a short space of time. There are other rеasоns for this message to appear, however.
If this particular Google error is preventing you from using the Google search engine effectively, you can troubleshoot the issue by following the steps below.
What Causes a Google Unusual Traffic Error?
If you see a Google unusual traffic error message, it’s usually a sign that Google suspects your web traffic is problematic in some way. Unusual traffic, in this instance, typically means automated traffic or malicious traffic, caused by hackers, bots, malware unnecessary search requests.
It can also be caused by searches that mark you out as “unusual” in some way, such as regular or repeated use of advanced search operators.
It isn’t usually an error message you need to worry about, as it can usually be resolved with a few simple fixes. For instance, if you’re using a public computer, you may find that the internet connection (and outgoing IP address) you’re using is shared by too many devices, causing Google to limit the searches being made.
It can also be caused by a virtual private network (VPN), where web traffic routed through VPN servers causes Google to rate-limit the number of searches being made.
You may also need to check for possible malware. If your PC is infected, a hacker could be using your internet connection to send significant traffic to Google’s search engine, which Google will block with a “detected unusual traffic” message. If this occurs, you’ll need to scan for malware urgently.
The problem could also be down to an application or script you’re running yourself. If you’re trying to scrape Google search results too quickly, for instance, Google will block the searches after a short period of time.
Successfully Perform the CAPTCHA Test
If Google is blocking your search traffic without a good cause (as far as you’re aware), you can usually bypass it by performing the CAPTCHA test. CAPTCHA is a system designed to limit non-human web traffic (such as automated scraping bots) by introducing a test that “only” humans using a typical web browser can solve.
While the CAPTCHA system isn’t as foolproof as it used to be, Google still continues to use it as a way to limit unusual web traffic. If your Google searches are limited in some way, select the I’m not a robot checkbox in the CAPTCHA box and perform the test.
The test usually involves identifying images based on a set scenario by selecting them (for instance, picking all of the images with a visible tree). There is also an option for the visually impaired to hear the captcha read to them.
Once you’re chosen the correct images, selecting the Verify button should allow you to perform the search. However, if you fail the test, or if Google continues to suspect your traffic is automated, you’ll need to repeat the process.
If you continue to have issues, consider signing in with your Google account or switch to another web browser (such as Google Chrome). This is a good way to prove to Google’s servers that you’re a legitimate search user, reducing the likelihood that your searches will be rate limited in future.
Temporarily Limit Your Searches (and Use Fewer Search Operators)
If you’re making a lot of searches in a short space of time, especially if you’ve used an automated tool (such as a scraping bot) to make them, you may need to temporarily limit your searches.
You may need to do this for an hour or two, but it may take 24 hours for any rate limiting on your IP address to be lifted. You may also need to limit the number of advanced Google search operators that you’re using in searches.
This is because search operators (such as site:online-tech-tips.com) are an increasing sign of automated searches. Most Google search users don’t use operators for searches, so Google can easily filter these out for traffic. If you do need to use operators, use them sparingly to lower the chance of being rate limited.
Disconnect from a VPN (or Switch Internet Connections)
A virtual private network (or VPN) is often used to hide your true IP address, giving you extra privacy online. If you’re connected to a VPN, however, you may find that the chances of seeing a Google unusual traffic error message increase.
A VPN provider routes your traffic through thousands of servers at its disposal, but it also routes traffic from other VPN subscribers through the same servers. Much like using a public internet connection (such as a shared PC or public WiFi), this can cause a significant number of shared Google queries on the same IP address.
This will cause Google to block or limit the searches made through that IP address. Google may also identify certain IP ranges (such as those used by VPNs) as at-risk sources, rate-limiting them.
The best way to overcome these issues is to disconnect from any VPN connection you’re using to make searches. If this doesn’t work, you may need to consider switching to another internet connection (such as a mobile data connection) to bypass the issue.
Check for Malware
If you’re unsure as to the cause of a Google unusual traffic message, it could point to a malware infection on your PC or local network. This malware could use your internet connection to make a significant number of search queries to scrape data or otherwise perform a distributed denial of service (DDoS) attack on Google itself.
While you could use third-party antivirus or anti-malware software, it isn’t strictly necessary. Windows 10 includes a built-in security solution called Microsoft Defender that you can use to check for (and remove) possible malware infections automatically.
- To open Microsoft Defender, right-click the Start menu and select the Settings option.
- In the Windows Settings menu, select Update & Security > Windows Security > Open Windows Security.
- Windows will open the Security menu in a new window. Select Virus & threat protection from the menu, then select Check for updates to make sure your antivirus database is up-to-date.
- Once the Microsoft Defender antivirus database is updated, select Scan options, listed underneath the Current threats category.
- Select the Microsoft Defender Offline Scan option, then select the Scan now button.
Windows will restart your PC, performing a boot-level scan of your system drive to check for any malware infection. Follow any additional on-screen instructions to remove any stubborn malware it detects.
You may need to repeat these steps on all other devices connected to your local network and sharing the same public IP address.
Using Google Effectively
A Google unusual traffic error message isn’t something to worry about, but if you’re seeing it regularly, you may need to rethink your search habits. Too many searches (or searches with advanced search operators) in a short period will cause it, but so can a malware infection, so be sure to check your network regularly for infections.
If you’re worried about the data Google is collecting on you, you might want to download your personal data to check. If you’re unhappy, you can always switch to a privacy-focused search engine like DuckDuckGo to keep your searches hidden or use certain browser tools to limit the amount of data you share online.
