- 目标站点用 Cloudflare IUAM 或类似 JS 挑战做首屏拦截：裸 Selenium 会卡在验证页，这个库修补 chromedriver 二进制让挑战通过，省掉自己逆向 JS 的活
- 已有 Selenium 测试/抓取代码想最小改动迁移：API 基本是 webdriver.Chrome 的 drop-in，改 import 和启动参数即可，不用重写成 Playwright
- 需要监听 DevTools 底层事件做请求拦截或响应采集：README 提供了 CDP 事件监听入口，比在 Selenium 上层打补丁干净
- 单机跑中小规模抓取、且出口 IP 本身信誉尚可：检测绕过只解决指纹维度，配合干净 IP 才有意义
undetected-chromedriver
ultrafunkamsterdamGPL-3.0长期未更新 有专家点评定制版 Selenium Chromedriver，开箱即用，能绕过 CloudFlare、Distil、Imperva 等主流反爬和机器人检测系统，适合做浏览器自动化时被拦截的场景。
Custom Selenium Chromedriver | Zero-Config | Passes ALL bot mitigation systems (like Distil / Imperva/ Datadadome / CloudFlare IUAM)
暂无版本12,899star1,345fork同步于 2026-11-11 05:26 UTC
专家点评
上手难度：进阶更新于 2026-11-11给 Selenium 打补丁绕过浏览器指纹检测，替代裸 chromedriver 做爬虫入口
适用场景
踩坑
- headless 模式：README 明确标注不支持，虽然打了补丁但不保证稳定。CI 或服务器无头环境里跑会撞上，需要上 xvfb 之类的虚拟显示
- selenium 版本：要求 4.9+，4.10 有已知兼容问题。锁死依赖版本的环境（比如被其他库钉在旧 selenium）升级时会卡住
- IP 信誉：README 自己说明不隐藏 IP，数据中心 IP 或低信誉家庭 IP 大概率仍被拦。把检测绕过当成万能解、不配代理池的话，失败会表现为「库没用」而不是「IP 被拒」
同类对比
Playwright 配 stealth 插件或 patchright 这类 fork，在需要多浏览器引擎、更现代 API 时更合适；纯 HTTP 抓取且目标无 JS 挑战时，requests/httpx 加 TLS 指纹伪装（curl_cffi）比拖一个浏览器轻得多
pip install undetected-chromedriver 硬件要求按 README 说明
README 未说明显存或 GPU 要求；需本机安装 Chrome 或 Chromium 系浏览器，Python 3.6 及以上。
项目说明
由 README 自动翻译提炼给 Selenium Chromedriver 打补丁，绕过 Cloudflare 等反爬检测的 Python 库
定制版 Selenium Chromedriver，开箱即用，能绕过 CloudFlare、Distil、Imperva 等主流反爬和机器人检测系统，适合做浏览器自动化时被拦截的场景。
核心能力
- 自动下载并修补 chromedriver 二进制
- 重写反检测机制，阻止指纹变量被注入
- 支持监听 DevTools 协议底层事件
- 提供 click_safe 与递归查找子节点等便捷方法
- 兼容 Brave 等 Chromium 系浏览器
容易踩的坑
不隐藏 IP，数据中心 IP 或低信誉家庭 IP 大概率仍被拦截；需 selenium 4.9 及以上，4.10 曾有兼容问题；headless 模式官方标注为不支持，虽已修补但不保证稳定。
内容由模型根据 README 生成，可能不完整或不准确，以官方文档为准。看原文 README
暂无 release 数据（可能没有发版，或尚未同步）。
用户点评
登录用户的真实使用记录，可按版本和硬件筛选共 0 条
还没有人点评。第一个说出真实体验的人最有价值。
undetected_chromedriver
https://github.com/ultrafunkamsterdam/undetected-chromedriver
Optimized Selenium Chromedriver patch which does not trigger anti-bot services like Distill Network / Imperva / DataDome / Botprotect.io Automatically downloads the driver binary and patches it.
- Tested until current chrome beta versions
- Works also on Brave Browser and many other Chromium based browsers, but you need to know what you're doing and needs some tweaking.
- Python 3.6++**
Installation
pip install undetected-chromedriver
or , if you're feeling adventurous, install directly via github
pip install git+https://www.github.com/ultrafunkamsterdam/undetected-chromedriver@master # replace @master with @branchname for other branches
Message for all
I will be putting limits on the issue tracker. It has beeen abused too long.
any good news?
Yes, i've opened Undetected-Discussions which i think will help us better in the long run.
What this is not
THIS PACKAGE DOES NOT, and i repeat DOES NOT hide your IP address, so when running from a datacenter (even smaller ones), chances are large you will not pass! Also, if your ip reputation at home is low, you won't pass!
Running following code from home , and from a datacenter.
import undetected_chromedriver as uc
driver = uc.Chrome(headless=True,use_subprocess=False)
driver.get('https://nowsecure.nl')
driver.save_screenshot('nowsecure.png')
3.5.0
- selenium 4.10 caused some issues. 3.5.0 is compatible and has selenium 4.9 or above pinned. I can't support <4.9 any longer.
- Removed some kwargs from constructor: service_args, service_creationflags, service_log_path.
- added find_elements_recursive generator function. which is more of a convenience funtion as lots of websites seem to serve different content from different frames, making it hard to use find_elements
3.4.5
- What a week. Had the recent advancedments in Automation-Detection algorithms pwned (so i thought) with 3.4.0, but apparently, for some OS-es this caused an error when interacting with elements. Had to revert back using a different method, fix bugs, and now eventually was still able to stick to the initial idea (+ fixing bugs)
- Update to chrome 110 caused another surprise, this time for HEADLESS users.
- although headless is unsupported officially, i did patch it!
- happy to announce IT IS NOW UNDETECTED AS WELL (but still unsupported ;))
- special thanks here to @mdmintz and @abdulzain6
- also special thanks to @sebdelsol for his help troughout the issues section completely voluntarily, you must be crazy :)
3.4.0
Big update! be careful as it -potentially- could break your code.
-
rewritten the anti-detection mechanism instead of removing and renaming variables, we just keep them, but prevent them from being injected in the first place. This will keep us safe from detection at least for the near future.
-
rewritten the file naming, to prevent ending up with 1000 of {randomstring}_chromedriver.exe 's instead it is just called undetected_chromedriver.exe
-
cleanup removed compat,v2 files and tests folder
3.2.0
- added an example containing some typical webdriver code, answers to commonly asked questions, pitfalls + showcasing some tricks to ditch the need for multithreading.
>>>> example code here <<<<
-
added WebElement.click_safe() method, which you can try in case you get detected after clicking a link. This is not guaranteed t o work.
-
added WebElement.children(self, tag=None, recursive=False) to easily get/find child nodes. example:
body = driver.find_element('tag name', 'body') # get the 6th child (any tag) of body, and grab all img's within (recursive). images = body.children()[6].children('img', True) srcs = list(map(lambda _:_.attrs.get('src'), images)) -
added example.py where i can point people at when asking silly questions (no, its actually quite cool, everyone should see it)
-
added support for lambda platform
-
added support for x86_32
-
added support for systems reporting as linux2
-
some refactoring
3.1.6
still passing strong
-
use_subprocess now defaults to True. too many people don't understand multiprocessing and name == 'main, and after testing, it seems not to make a difference anymore in chrome 104+
-
added no_sandbox, which defaults to True, and this without the annoying "you are using unsecure command line ..." bar.
-
update Docker image. you can now vnc or rdp into your container to see the actual browser window
-
of course, "regular" mode works as well
3.1.0
this version might break your code, test before update!
-
added new anti-detection logic!
-
v2 has become the main module, so no need for references to v2 anymore. this mean you can now simply use:
import undetected_chromedriver as uc driver = uc.Chrome() driver.get('https://nowsecure.nl')for backwards compatibility, v2 is not removed, but aliassed to the main module.
-
Fixed "welcome screen" nagging on non-windows OS-es. For those nagfetishists who ❤ welcome screens and feeding google with even more data, use Chrome(suppress_welcome=False).
-
replaced
executable_pathin constructor in favor ofbrowser_executable_pathwhich should not be used unless you are the edge case (yep, you are) who can't add your custom chrome installation folder to your PATH environment variable, or have an army of different browsers/versions and automatic lookup returns the wrong browser -
"v1" (?) moved to _compat for now.
-
fixed dependency versions
-
ChromeOptions custom handling removed, so it is compatible with
webdriver.chromium.options.ChromiumOptions. -
removed Chrome.get() fu and restored back to "almost" original:
- no
withstatements needed anymore, although it will still work for the sake of backward-compatibility. - no sleeps, stop-start-sessions, delays, or async cdp black magic!
- this will solve a lot of other "issues" as well.
- no
-
test success to date: 100%
-
just to mention it another time, since some people have hard time reading: headless is still WIP. Raising issues is needless
3.0.4 changes
-
change process creation behavior to be fully detached
-
changed .get(url) method to always use the contextmanager
-
changed .get(url) method to use cdp under the hood.
... the
withstatement is not necessary anymore .. -
todo: work towards asyncification and selenium 4
words of wisdom:
Whenever you encounter the daunted
from session not created: This version of ChromeDriver only supports Chrome version 96 # or what ever version
the solution is simple:
import undetected_chromedriver as uc
driver = uc.Chrome( version_main = 95 )
July 2021: Currently busy implementing selenium 4 for undetected-chromedriver
newsflash: https://github.com/ultrafunkamsterdam/undetected-chromedriver/pull/255
Usage
To prevent unnecessary hair-pulling and issue-raising, please mind the important note at the end of this document .
easy
Literally, this is all you have to do. Settings are included and your browser executable is found automagically. This is also the snippet i recommend using in case you experience an issue.
import undetected_chromedriver as uc
driver = uc.Chrome()
driver.get( 'https://nowsecure.nl' ) # my own test test site with max anti-bot protection
more advanced way, including setting profie folder
Literally, this is all you have to do. If a specified folder does not exist, a NEW profile is created. Data dirs which are specified like this will not be autoremoved on exit.
import undetected_chromedriver as uc
options = uc.ChromeOptions()
## setting profile
options.user_data_dir = "c:\\temp\\profile"
## use specific (older) version
driver = uc.Chrome(
options = options , version_main = 94
) # version_main allows to specify your chrome version instead of following chrome global version
driver.get( 'https://nowsecure.nl' ) # my own test test site with max anti-bot protection
expert mode, including Devtool/Wire events
Literally, this is all you have to do. You can now listen and subscribe to the low level devtools-protocol. I just recently found out that is also on planning for future release of the official chromedriver. However i implemented my own for now. Since i needed it myself for investigation.
import undetected_chromedriver as uc
from pprint import pformat
driver = uc.Chrome(enable_cdp_events=True)
def mylousyprintfunction(eventdata):
print(pformat(eventdata))
## set the callback to Network.dataReceived to print (yeah not much original)
driver.add_cdp_listener("Network.dataReceived", mylousyprintfunction)
driver.get('https://nowsecure.nl') # known url using cloudflare's "under attack mode"
def mylousyprintfunction(message):
print(pformat(message))
## for more inspiration checkout the link below
## https://chromedevtools.github.io/devtools-protocol/1-3/Network/
## and of couse 2 lousy examples
driver.add_cdp_listener('Network.requestWillBeSent', mylousyprintfunction)
driver.add_cdp_listener('Network.dataReceived', mylousyprintfunction)
## hint: a wildcard captures all events!
## driver.add_cdp_listener('*', mylousyprintfunction)
## now all these events will be printed in my console
driver.get('https://nowsecure.nl')
{'method': 'Network.requestWillBeSent',
'params': {'documentURL': 'https://nowsecure.nl/',
'frameId': 'F42BAE4BDD4E428EE2503CB5A7B4F700',
'hasUserGesture': False,
'initiator': {'type': 'other'},
'loaderId': '449906A5C736D819123288133F2797E6',
'request': {'headers': {'Upgrade-Insecure-Requests': '1',
'User-Agent': 'Mozilla/5.0 (Windows NT '
'10.0; Win64; x64) '
'AppleWebKit/537.36 (KHTML, '
'like Gecko) '
'Chrome/90.0.4430.212 '
'Safari/537.36',
'sec-ch-ua': '" Not A;Brand";v="99", '
'"Chromium";v="90", "Google '
'Chrome";v="90"',
'sec-ch-ua-mobile': '?0'},
'initialPriority': 'VeryHigh',
'method': 'GET',
'mixedContentType': 'none',
'referrerPolicy': 'strict-origin-when-cross-origin',
'url': 'https://nowsecure.nl/'},
'requestId': '449906A5C736D819123288133F2797E6',
'timestamp': 190010.996717,
'type': 'Document',
'wallTime': 1621835932.112026}}
{'method': 'Network.requestWillBeSentExtraInfo',
'params': {'associatedCookies': [],
'headers': {':authority': 'nowsecure.nl',
':method': 'GET',
':path': '/',
':scheme': 'https',
'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
'accept-encoding': 'gzip, deflate, br',
'accept-language': 'en-US,en;q=0.9',
'sec-ch-ua': '" Not A;Brand";v="99", '
'"Chromium";v="90", "Google '
'Chrome";v="90"',
'sec-ch-ua-mobile': '?0',
'sec-fetch-dest': 'document',
'sec-fetch-mode': 'navigate',
'sec-fetch-site': 'none',
'sec-fetch-user': '?1',
'upgrade-insecure-requests': '1',
'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; '
'x64) AppleWebKit/537.36 (KHTML, like '
'Gecko) Chrome/90.0.4430.212 '
'Safari/537.36'},
'requestId': '449906A5C736D819123288133F2797E6'}}
{'method': 'Network.responseReceivedExtraInfo',
'params': {'blockedCookies': [],
'headers': {'alt-svc': 'h3-27=":443"; ma=86400, h3-28=":443"; '
'ma=86400, h3-29=":443"; ma=86400',
'cache-control': 'private, max-age=0, no-store, '
'no-cache, must-revalidate, '
'post-check=0, pre-check=0',
'cf-ray': '65444b779ae6546f-LHR',
'cf-request-id': '0a3e8d7eba0000546ffd3fa000000001',
'content-type': 'text/html; charset=UTF-8',
'date': 'Mon, 24 May 2021 05:58:53 GMT',
'expect-ct': 'max-age=604800, '
'report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"',
'expires': 'Thu, 01 Jan 1970 00:00:01 GMT',
'nel': '{"report_to":"cf-nel","max_age":604800}',
'permissions-policy': 'accelerometer=(),autoplay=(),camera=(),clipboard-read=(),clipboard-write=(),fullscreen=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()',
'report-to': '{"endpoints":[{"url":"https:\\/\\/a.nel.cloudflare.com\\/report?s=CAfobYlmWImQ90e%2B4BFBhpPYL%2FyGyBvkcWAj%2B%2FVOLoEq0NVrD5jU9m5pi%2BKI%2BOAnINLPXOCoX2psLphA5Z38aZzWNr3eW%2BDTIK%2FQidc%3D"}],"group":"cf-nel","max_age":604800}',
'server': 'cloudflare',
'vary': 'Accept-Encoding',
'x-frame-options': 'SAMEORIGIN'},
'requestId': '449906A5C736D819123288133F2797E6',
'resourceIPAddressSpace': 'Public'}}
{'method': 'Network.responseReceived',
'params': {'frameId': 'F42BAE4BDD4E428EE2503CB5A7B4F700',
'loaderId': '449906A5C736D819123288133F2797E6',
'requestId': '449906A5C736D819123288133F2797E6',
'response': {'connectionId': 158,
'connectionReused': False,
'encodedDataLength': 851,
'fromDiskCache': False,
'fromPrefetchCache': False,
'fromServiceWorker': False,
'headers': {'alt-svc': 'h3-27=":443"; ma=86400, '
'h3-28=":443"; ma=86400, '
'h3-29=":443"; ma=86400',
'cache-control': 'private, max-age=0, '
'no-store, no-cache, '
'must-revalidate, '
'post-check=0, '
'pre-check=0',
'cf-ray': '65444b779ae6546f-LHR',
'cf-request-id': '0a3e8d7eba0000546ffd3fa000000001',
'content-type': 'text/html; charset=UTF-8',
'date': 'Mon, 24 May 2021 05:58:53 GMT',
'expect-ct': 'max-age=604800, '
'report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"',
'expires': 'Thu, 01 Jan 1970 00:00:01 GMT',
'nel': '{"report_to":"cf-nel","max_age":604800}',
'permissions-policy': 'accelerometer=(),autoplay=(),camera=(),clipboard-read=(),clipboard-write=(),fullscreen=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()',
'report-to': '{"endpoints":[{"url":"https:\\/\\/a.nel.cloudflare.com\\/report?s=CAfobYlmWImQ90e%2B4BFBhpPYL%2FyGyBvkcWAj%2B%2FVOLoEq0NVrD5jU9m5pi%2BKI%2BOAnINLPXOCoX2psLphA5Z38aZzWNr3eW%2BDTIK%2FQidc%3D"}],"group":"cf-nel","max_age":604800}',
'server': 'cloudflare',
'vary': 'Accept-Encoding',
'x-frame-options': 'SAMEORIGIN'},
'mimeType': 'text/html',
'protocol': 'h2',
'remoteIPAddress': '104.21.5.197',
'remotePort': 443,
'requestHeaders': {':authority': 'nowsecure.nl',
':method': 'GET',
':path': '/',
':scheme': 'https',
'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
'accept-encoding': 'gzip, deflate, '
'br',
'accept-language': 'en-US,en;q=0.9',
'sec-ch-ua': '" Not '
'A;Brand";v="99", '
'"Chromium";v="90", '
'"Google '
'Chrome";v="90"',
'sec-ch-ua-mobile': '?0',
'sec-fetch-dest': 'document',
'sec-fetch-mode': 'navigate',
'sec-fetch-site': 'none',
'sec-fetch-user': '?1',
'upgrade-insecure-requests': '1',
'user-agent': 'Mozilla/5.0 '
'(Windows NT 10.0; '
'Win64; x64) '
'AppleWebKit/537.36 '
'(KHTML, like Gecko) '
'Chrome/90.0.4430.212 '
'Safari/537.36'},
'responseTime': 1621835932177.923,
'securityDetails': {'certificateId': 0,
'certificateTransparencyCompliance': 'compliant',
'cipher': 'AES_128_GCM',
'issuer': 'Cloudflare Inc ECC '
'CA-3',
'keyExchange': '',
'keyExchangeGroup': 'X25519',
'protocol': 'TLS 1.3',
'sanList': ['sni.cloudflaressl.com',
'*.nowsecure.nl',
'nowsecure.nl'],
'signedCertificateTimestampList': [{'hashAlgorithm': 'SHA-256',
'logDescription': 'Google '
"'Argon2021' "
'log',
'logId': 'F65C942FD1773022145418083094568EE34D131933BFDF0C2F200BCC4EF164E3',
'origin': 'Embedded '
'in '
'certificate',
'signatureAlgorithm': 'ECDSA',
'signatureData': '30450221008A25458182A6E7F608FE1492086762A367381E94137952FFD621BA2E60F7E2F702203BCDEBCE1C544DECF0A113DE12B33E299319E6240426F38F08DFC04EF2E42825',
'status': 'Verified',
'timestamp': 1598706372839.0},
{'hashAlgorithm': 'SHA-256',
'logDescription': 'DigiCert '
'Yeti2021 '
'Log',
'logId': '5CDC4392FEE6AB4544B15E9AD456E61037FBD5FA47DCA17394B25EE6F6C70ECA',
'origin': 'Embedded '
'in '
'certificate',
'signatureAlgorithm': 'ECDSA',
'signatureData': '3046022100A95A49C7435DBFC73406AC409062C27269E6E69F443A2213F3A085E3BCBD234A022100DEA878296F8A1DB43546DC1865A4C5AD2B90664A243AE0A3A6D4925802EE68A8',
'status': 'Verified',
'timestamp': 1598706372823.0}],
'subjectName': 'sni.cloudflaressl.com',
'validFrom': 1598659200,
'validTo': 1630238400},
'securityState': 'secure',
'status': 503,
'statusText': '',
'timing': {'connectEnd': 40.414,
'connectStart': 0,
'dnsEnd': 0,
'dnsStart': 0,
'proxyEnd': -1,
'proxyStart': -1,
'pushEnd': 0,
'pushStart': 0,
'receiveHeadersEnd': 60.361,
'requestTime': 190011.002239,
'sendEnd': 41.348,
'sendStart': 41.19,
'sslEnd': 40.405,
'sslStart': 10.853,
'workerFetchStart': -1,
'workerReady': -1,
'workerRespondWithSettled': -1,
'workerStart': -1},
'url': 'https://nowsecure.nl/'},
'timestamp': 190011.06449,
'type': 'Document'}}
{'method': 'Page.frameStartedLoading',
'params': {'frameId': 'F42BAE4BDD4E428EE2503CB5A7B4F700'}}
{'method': 'Page.frameNavigated',
'params': {'frame': {'adFrameType': 'none',
'crossOriginIsolatedContextType': 'NotIsolated',
'domainAndRegistry': 'nowsecure.nl',
'gatedAPIFeatures': ['SharedArrayBuffers',
'SharedArrayBuffersTransferAllowed'],
'id': 'F42BAE4BDD4E428EE2503CB5A7B4F700',
'loaderId': '449906A5C736D819123288133F2797E6',
'mimeType': 'text/html',
'secureContextType': 'Secure',
'securityOrigin': 'https://nowsecure.nl',
'url': 'https://nowsecure.nl/'}}}
{'method': 'Network.dataReceived',
'params': {'dataLength': 9835,
'encodedDataLength': 0,
'requestId': '449906A5C736D819123288133F2797E6',
'timestamp': 190011.093343}}
{'method': 'Network.loadingFinished',
'params': {'encodedDataLength': 10713,
'requestId': '449906A5C736D819123288133F2797E6',
'shouldReportCorbBlocking': False,
'timestamp': 190011.064011}}
{'method': 'Network.requestWillBeSent',
'params': {'documentURL': 'https://nowsecure.nl/',
'frameId': 'F42BAE4BDD4E428EE2503CB5A7B4F700',
'hasUserGesture': False,
'initiator': {'stack': {'callFrames': [{'columnNumber': 51,
'functionName': '',
'lineNumber': 114,
'scriptId': '8',
'url': 'https://nowsecure.nl/'},
{'columnNumber': 9,
'functionName': '',
'lineNumber': 115,
'scriptId': '8',
'url': 'https://nowsecure.nl/'}]},
'type': 'script'},
'loaderId': '449906A5C736D819123288133F2797E6',
'request': {'headers': {'Referer': 'https://nowsecure.nl/',
'User-Agent': 'Mozilla/5.0 (Windows NT '
'10.0; Win64; x64) '
'AppleWebKit/537.36 (KHTML, '
'like Gecko) '
'Chrome/90.0.4430.212 '
'Safari/537.36',
'sec-ch-ua': '" Not A;Brand";v="99", '
'"Chromium";v="90", "Google '
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一条命令行就能让 AI 智能体读取和搜索 Twitter、Reddit、YouTube、GitHub、B站、小红书等平台内容，不用付任何 API 费用。
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