你可以尝试使用参数enable-automation

var options = new ChromeOptions();

// hide selenium
options.AddExcludedArguments(new List<string>() { "enable-automation" });

var driver = new ChromeDriver(ChromeDriverService.CreateDefaultService(), options);

但是，我想警告一下，这个能力在ChromeDriver 79.0.3945.16中被修复了。 所以你可能应该使用旧版本的chrome。

另外，作为另一种选择，你可以尝试使用InternetExplorerDriver而不是Chrome。对我来说，IE在没有任何hack的情况下根本不会阻塞。

想要了解更多信息，请看看这里:

Selenium webdriver:修改导航器。Webdriver标志，以防止硒检测

在Chrome v76中无法隐藏“Chrome被自动软件控制”信息栏

正如我们已经在问题和发布的答案中发现的那样，这里有一个名为“蒸馏网络”的反网络抓取和机器人检测服务。根据该公司CEO的采访:

尽管他们可以创造新的机器人，但我们找到了识别的方法 硒是他们使用的一个工具，所以我们阻止硒不 不管他们在机器人上迭代了多少次。我们现在正在做 使用Python和许多不同的技术。一旦我们发现了规律 从一种机器人中脱颖而出，然后我们对其进行逆向工程 他们使用的技术并将其识别为恶意的。

要了解他们究竟是如何检测硒的，还需要时间和更多的挑战，但目前我们可以肯定地说:

it's not related to the actions you take with Selenium. Once you navigate to the site, you get immediately detected and banned. I've tried to add artificial random delays between actions, take a pause after the page is loaded - nothing helped it's not about browser fingerprint either. I tried it in multiple browsers with clean profiles and not, incognito modes, but nothing helped since, according to the hint in the interview, this was "reverse engineering", I suspect this is done with some JavaScript code being executed in the browser revealing that this is a browser automated via Selenium WebDriver

我决定把它作为一个答案，因为很明显:

当你用chromedriver使用selenium时，网站能检测到吗?

Yes.

Also, I haven't experimented with older Selenium and older browser versions. In theory, there could be something implemented/added to Selenium at a certain point that Distil Networks bot detector currently relies on. Then, if this is the case, we might detect (yeah, let's detect the detector) at what point/version a relevant change was made, look into changelog and changesets and, may be, this could give us more information on where to look and what is it they use to detect a webdriver-powered browser. It's just a theory that needs to be tested.

我发现改变JavaScript的“key”变量是这样的:

//Fools the website into believing a human is navigating it
((JavascriptExecutor)driver).executeScript("window.key = \"blahblah\";");

当使用Selenium WebDriver和谷歌Chrome时，可以在一些网站上使用，因为许多网站都会检查这个变量，以避免被Selenium刮擦。

一些网站发现了这一点:

function d() {
try {
    if (window.document.$cdc_asdjflasutopfhvcZLmcfl_.cache_)
        return !0
} catch (e) {}

try {
    //if (window.document.documentElement.getAttribute(decodeURIComponent("%77%65%62%64%72%69%76%65%72")))
    if (window.document.documentElement.getAttribute("webdriver"))
        return !0
} catch (e) {}

try {
    //if (decodeURIComponent("%5F%53%65%6C%65%6E%69%75%6D%5F%49%44%45%5F%52%65%63%6F%72%64%65%72") in window)
    if ("_Selenium_IDE_Recorder" in window)
        return !0
} catch (e) {}

try {
    //if (decodeURIComponent("%5F%5F%77%65%62%64%72%69%76%65%72%5F%73%63%72%69%70%74%5F%66%6E") in document)
    if ("__webdriver_script_fn" in document)
        return !0
} catch (e) {}

它适用于一些网站，从导航器中删除属性webdriver

from selenium import webdriver
driver = webdriver.Chrome()
driver.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
    "source":
        "const newProto = navigator.__proto__;"
        "delete newProto.webdriver;"
        "navigator.__proto__ = newProto;"
    })

用下面的代码编写一个HTML页面。你会看到在DOM中selenium应用了outerHTML中的webdriver属性:

< html > < >头 < script type = " text / javascript " > < !-- 函数显示窗口(){ javascript:(警报(document.documentElement.outerHTML)); ｝ //--> > < /脚本 > < /头 身体< > < >形式 <input type="button" value="Show outerHTML" onclick="showWindow()" > > < /形式 身体< / > < / html >