{"id":1821,"date":"2026-07-24T17:15:53","date_gmt":"2026-07-24T09:15:53","guid":{"rendered":"\/blog\/?p=1821"},"modified":"2026-07-24T17:17:45","modified_gmt":"2026-07-24T09:17:45","slug":"tls-%e6%8c%87%e7%ba%b9%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"\/blog\/tls-%e6%8c%87%e7%ba%b9%e8%af%a6%e8%a7%a3","title":{"rendered":"TLS \u6307\u7eb9\u8be6\u89e3\uff08JA3 \u4e0e JA4\uff09\uff1a\u7f51\u7ad9\u5982\u4f55\u8bc6\u522b\u81ea\u52a8\u5316\u6d41\u91cf"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5f88\u591a\u5f00\u53d1\u8005\u8ba4\u4e3a\uff0c\u53ea\u8981\u66f4\u6362\u4ee3\u7406 IP\uff0c\u5c31\u53ef\u4ee5\u964d\u4f4e\u7f51\u7ad9\u8bc6\u522b\u81ea\u52a8\u5316\u6d41\u91cf\u7684\u98ce\u9669\u3002\u4f46\u5728 2026 \u5e74\uff0c\u8fd9\u79cd\u7406\u89e3\u5df2\u7ecf\u4e0d\u591f\u5b8c\u6574\u3002\u73b0\u4ee3\u7f51\u7ad9\u5728\u5224\u65ad\u8bbf\u95ee\u662f\u5426\u53ef\u4fe1\u65f6\uff0c\u901a\u5e38\u4e0d\u4f1a\u53ea\u770b IP \u5730\u5740\uff0c\u800c\u662f\u4f1a\u7efc\u5408\u5206\u6790 TLS \u6307\u7eb9\u3001\u6d4f\u89c8\u5668\u6307\u7eb9\u3001HTTP Headers\u3001Cookie\u3001IP \u4fe1\u8a89\u3001\u4f1a\u8bdd\u884c\u4e3a\u548c\u4ea4\u4e92\u6a21\u5f0f\u7b49\u591a\u5c42\u4fe1\u53f7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u610f\u5473\u7740\uff0c\u5373\u4f7f\u4f7f\u7528\u9ad8\u8d28\u91cf\u4f4f\u5b85\u4ee3\u7406\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u7279\u5f81\u5f02\u5e38\uff0c\u4ecd\u7136\u53ef\u80fd\u88ab Cloudflare\u3001Akamai\u3001Imperva\u3001Kasada\u3001PerimeterX\u3001DataDome \u7b49\u98ce\u63a7\u7cfb\u7edf\u8bc6\u522b\u4e3a\u53ef\u7591\u8bbf\u95ee\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7edc\u5c42\u6307\u7eb9\u5df2\u7ecf\u6210\u4e3a\u73b0\u4ee3\u53cd\u673a\u5668\u4eba\u68c0\u6d4b\u4e2d\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u56e0\u4e3a\u5b83\u53d1\u751f\u5728\u7f51\u9875 JavaScript \u6267\u884c\u548c\u6d4f\u89c8\u5668 API \u66b4\u9732\u4e4b\u524d\u3002\u670d\u52a1\u5668\u53ef\u4ee5\u5728\u5b89\u5168\u8fde\u63a5\u5efa\u7acb\u9636\u6bb5\uff0c\u5c31\u901a\u8fc7\u5ba2\u6237\u7aef\u7684 TLS \u63e1\u624b\u7279\u5f81\u5224\u65ad\u5b83\u66f4\u50cf\u771f\u5b9e\u6d4f\u89c8\u5668\u3001\u811a\u672c\u5e93\uff0c\u8fd8\u662f\u81ea\u52a8\u5316\u5de5\u5177\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6587\u5c06\u4ecb\u7ecd\u4ec0\u4e48\u662f TLS \u6307\u7eb9\uff0cJA3 \u548c JA4 \u5982\u4f55\u5de5\u4f5c\uff0c\u4e3a\u4ec0\u4e48\u5b83\u4eec\u4f1a\u5f71\u54cd Web Scraping \u548c\u6d4f\u89c8\u5668\u81ea\u52a8\u5316\uff0c\u4ee5\u53ca\u5f00\u53d1\u8005\u5982\u4f55\u901a\u8fc7\u73b0\u4ee3\u6d4f\u89c8\u5668\u548c\u9ad8\u8d28\u91cf\u4ee3\u7406\u57fa\u7840\u8bbe\u65bd\u964d\u4f4e\u68c0\u6d4b\u98ce\u9669\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f TLS \u6307\u7eb9\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TLS\uff0c\u5168\u79f0 Transport Layer Security\uff0c\u662f\u4fdd\u62a4 HTTPS \u8fde\u63a5\u5b89\u5168\u7684\u534f\u8bae\u3002\u5728\u6d4f\u89c8\u5668\u52a0\u8f7d HTTPS \u7f51\u7ad9\u4e4b\u524d\uff0c\u5ba2\u6237\u7aef\u9700\u8981\u5148\u4e0e\u670d\u52a1\u5668\u8fdb\u884c TLS \u63e1\u624b\u3002\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u5ba2\u6237\u7aef\u4f1a\u53d1\u9001\u4e00\u4e2a\u540d\u4e3a <code>Client Hello<\/code> \u7684\u6d88\u606f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>Client Hello<\/code> \u4e2d\u5305\u542b\u5ba2\u6237\u7aef\u652f\u6301\u7684 TLS \u80fd\u529b\u4fe1\u606f\uff0c\u4f8b\u5982 TLS \u7248\u672c\u3001Cipher Suites\u3001Extensions\u3001Supported Groups\u3001Signature Algorithms \u548c ALPN \u534f\u8bae\u7b49\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u540c\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u63e1\u624b\u7279\u5f81\u5e76\u4e0d\u76f8\u540c\u3002Chrome\u3001Firefox\u3001Safari\u3001Edge\u3001Python Requests\u3001curl\u3001Go\u3001Node.js\u3001OpenSSL \u548c Java HTTP \u5ba2\u6237\u7aef\uff0c\u90fd\u53ef\u80fd\u751f\u6210\u4e0d\u540c\u7684 TLS \u8fde\u63a5\u7279\u5f81\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b80\u5316\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6d4f\u89c8\u5668\u6216 HTTP \u5ba2\u6237\u7aef\n        \u2193\nTLS Client Hello\n        \u2193\n\u670d\u52a1\u5668\n        \u2193\n\u751f\u6210\u8fde\u63a5\u6307\u7eb9\n        \u2193\n\u4e0e\u5df2\u77e5\u6a21\u5f0f\u8fdb\u884c\u6bd4\u8f83<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0cWindows \u4e0a\u7684\u771f\u5b9e Chrome \u6d4f\u89c8\u5668\uff0c\u901a\u5e38\u4f1a\u548c Python Requests \u811a\u672c\u751f\u6210\u4e0d\u540c\u7684\u8fde\u63a5\u6307\u7eb9\u3002Go HTTP \u5ba2\u6237\u7aef\u53ef\u80fd\u4e0d\u540c\u4e8e Safari\u3002\u4f7f\u7528\u8fc7\u65e7 TLS \u6808\u7684 Headless \u6d4f\u89c8\u5668\uff0c\u4e5f\u53ef\u80fd\u4e0e\u5f53\u524d\u7a33\u5b9a\u7248\u672c\u6d4f\u89c8\u5668\u8868\u73b0\u4e0d\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u7c7b\u63e1\u624b\u6307\u7eb9\u7684\u6838\u5fc3\u903b\u8f91\u5c31\u662f\uff1a\u670d\u52a1\u5668\u4e0d\u9700\u8981\u7b49\u5f85\u9875\u9762 JavaScript \u6267\u884c\uff0c\u4e5f\u4e0d\u9700\u8981\u5148\u8bfb\u53d6\u6d4f\u89c8\u5668 API\uff0c\u5c31\u53ef\u4ee5\u5728\u7f51\u7edc\u8fde\u63a5\u5c42\u9762\u5206\u6790\u5ba2\u6237\u7aef\u884c\u4e3a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f JA3\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u662f\u4e00\u79cd TLS \u6307\u7eb9\u65b9\u6cd5\uff0c\u6700\u65e9\u7531 Salesforce \u7814\u7a76\u4eba\u5458\u5728 2017 \u5e74\u63d0\u51fa\u3002\u5b83\u4f1a\u4ece TLS <code>Client Hello<\/code> \u4e2d\u63d0\u53d6\u7279\u5b9a\u5b57\u6bb5\uff0c\u5e76\u751f\u6210\u4e00\u4e2a\u53ef\u7528\u4e8e\u8bc6\u522b\u5ba2\u6237\u7aef\u8fde\u63a5\u7279\u5f81\u7684\u6307\u7eb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u901a\u5e38\u4f7f\u7528\u4ee5\u4e0b\u4fe1\u606f\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TLS version<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cipher suites<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Extensions<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elliptic curves<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EC point formats<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e9b\u5b57\u6bb5\u4f1a\u88ab\u6807\u51c6\u5316\u5e76\u62fc\u63a5\u6210\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u901a\u5e38\u4f7f\u7528 MD5 \u8ba1\u7b97\u6210\u4e00\u4e2a\u7b80\u77ed\u7684 Hash\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u4e2a\u7b80\u5316\u7684 JA3 \u5b57\u7b26\u4e32\u53ef\u80fd\u7c7b\u4f3c\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>771,4865-4866-4867,0-11-10-35,29-23-24,0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u968f\u540e\u751f\u6210\u5bf9\u5e94\u7684 JA3 Hash\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>d4e5f6xxxx...<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u7684\u4f18\u52bf\u5728\u4e8e\uff0c\u670d\u52a1\u5668\u548c\u5b89\u5168\u7cfb\u7edf\u4e0d\u9700\u8981\u6bcf\u6b21\u90fd\u5b8c\u6574\u89e3\u6790\u6240\u6709 TLS \u5b57\u6bb5\uff0c\u800c\u662f\u53ef\u4ee5\u76f4\u63a5\u6bd4\u8f83 Hash\u3002\u5982\u679c\u67d0\u4e2a\u8bf7\u6c42\u7684 JA3 \u6307\u7eb9\u7ecf\u5e38\u4e0e\u81ea\u52a8\u5316\u5de5\u5177\u3001\u6076\u610f\u7a0b\u5e8f\u3001\u811a\u672c\u5ba2\u6237\u7aef\u6216\u5f02\u5e38\u5e93\u76f8\u5173\u8054\uff0c\u5b83\u5c31\u53ef\u80fd\u88ab\u5224\u5b9a\u4e3a\u66f4\u9ad8\u98ce\u9669\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u4e4b\u6240\u4ee5\u6d41\u884c\uff0c\u662f\u56e0\u4e3a\u5b83\u8ba9\u534f\u8bae\u5c42\u68c0\u6d4b\u66f4\u5bb9\u6613\u843d\u5730\u3002\u5b89\u5168\u56e2\u961f\u53ef\u4ee5\u8bb0\u5f55 JA3 Hash\uff0c\u8de8\u6d41\u91cf\u8fdb\u884c\u6bd4\u8f83\uff0c\u5e76\u8bc6\u522b\u53ef\u7591\u8bbf\u95ee\u6a21\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u8fc7\uff0cJA3 \u4e5f\u6709\u5c40\u9650\u3002\u5b83\u53ef\u4ee5\u88ab\u4f2a\u9020\uff0c\u800c\u4e14\u5bf9\u73b0\u4ee3\u534f\u8bae\u590d\u6742\u6027\u7684\u9002\u914d\u4e0d\u5982\u65b0\u4e00\u4ee3\u6307\u7eb9\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f JA4\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">JA4 \u662f\u4e00\u79cd\u66f4\u65b0\u7684\u6307\u7eb9\u65b9\u6cd5\uff0c\u7528\u4e8e\u6539\u8fdb JA3 \u7684\u90e8\u5206\u4e0d\u8db3\u3002\u5b83\u7684\u8bbe\u8ba1\u76ee\u6807\u662f\u66f4\u7a33\u5b9a\u3001\u66f4\u7ed3\u6784\u5316\uff0c\u5e76\u66f4\u9002\u5408\u73b0\u4ee3\u4e92\u8054\u7f51\u534f\u8bae\u73af\u5883\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u66fe\u7ecf\u975e\u5e38\u6709\u6548\uff0c\u4f46\u968f\u7740\u8d8a\u6765\u8d8a\u591a\u5ba2\u6237\u7aef\u5f00\u59cb\u6a21\u4eff\u5e38\u89c1\u6307\u7eb9\uff0cJA3 \u7684\u53ef\u4f2a\u9020\u6027\u4e5f\u53d8\u5f97\u66f4\u660e\u663e\u3002\u540c\u65f6\uff0c\u73b0\u4ee3\u7f51\u7edc\u6d41\u91cf\u8d8a\u6765\u8d8a\u591a\u6d89\u53ca HTTP\/2\u3001HTTP\/3\u3001QUIC \u548c\u66f4\u590d\u6742\u7684\u5ba2\u6237\u7aef\u884c\u4e3a\uff0c\u5355\u7eaf\u4f9d\u8d56 JA3 \u5df2\u7ecf\u4e0d\u591f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JA4 \u66f4\u5f3a\u8c03\u7a33\u5b9a\u6027\u548c\u7ed3\u6784\u5316\u5206\u6790\uff0c\u5e76\u652f\u6301\u66f4\u5e7f\u6cdb\u7684\u534f\u8bae\u73af\u5883\u3002\u5b83\u66f4\u9002\u5408\u73b0\u4ee3\u6d4f\u89c8\u5668\u8bc6\u522b\u3001\u673a\u5668\u4eba\u68c0\u6d4b\u548c\u5b89\u5168\u76d1\u63a7\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5bf9\u6bd4\u7ef4\u5ea6<\/th><th>JA3<\/th><th>JA4<\/th><\/tr><\/thead><tbody><tr><td>\u6838\u5fc3\u7528\u9014<\/td><td>TLS Client Hello \u6307\u7eb9\u8bc6\u522b<\/td><td>\u73b0\u4ee3\u6d41\u91cf\u6307\u7eb9\u8bc6\u522b<\/td><\/tr><tr><td>\u63d0\u51fa\u65f6\u95f4<\/td><td>2017 \u5e74<\/td><td>\u65b0\u4e00\u4ee3\u65b9\u6848<\/td><\/tr><tr><td>\u6307\u7eb9\u5f62\u5f0f<\/td><td>\u57fa\u4e8e TLS \u5b57\u6bb5\u7684 Hash<\/td><td>\u66f4\u7ed3\u6784\u5316\u7684\u6307\u7eb9<\/td><\/tr><tr><td>HTTP\/2 \u652f\u6301<\/td><td>\u6709\u9650<\/td><td>\u66f4\u9002\u5408\u73b0\u4ee3\u534f\u8bae<\/td><\/tr><tr><td>HTTP\/3 \/ QUIC \u652f\u6301<\/td><td>\u6709\u9650<\/td><td>\u66f4\u9002\u5408\u65b0\u578b\u6d41\u91cf<\/td><\/tr><tr><td>\u6297\u4f2a\u9020\u80fd\u529b<\/td><td>\u76f8\u5bf9\u66f4\u5bb9\u6613\u88ab\u6a21\u62df<\/td><td>\u66f4\u7a33\u5b9a\uff0c\u66f4\u96be\u7b80\u5355\u4fee\u6539<\/td><\/tr><tr><td>\u5178\u578b\u7528\u9014<\/td><td>TLS \u5f02\u5e38\u68c0\u6d4b<\/td><td>\u66f4\u5e7f\u6cdb\u7684 Bot \u4e0e\u6d41\u91cf\u5206\u6790<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">JA4 \u5e76\u4e0d\u610f\u5473\u7740 JA3 \u5df2\u7ecf\u8fc7\u65f6\u3002\u5f88\u591a\u5de5\u5177\u548c\u5b89\u5168\u56e2\u961f\u4ecd\u7136\u4f7f\u7528 JA3 Hash \u8fdb\u884c\u6d41\u91cf\u5206\u6790\u3002\u4f46 JA4 \u4ee3\u8868\u4e86\u73b0\u4ee3\u6d41\u91cf\u8bc6\u522b\u7684\u53d1\u5c55\u65b9\u5411\uff1a\u66f4\u591a\u4e0a\u4e0b\u6587\u3001\u66f4\u5f3a\u7a33\u5b9a\u6027\uff0c\u4ee5\u53ca\u5bf9\u5f53\u524d\u6d4f\u89c8\u5668\u548c\u534f\u8bae\u884c\u4e3a\u66f4\u597d\u7684\u652f\u6301\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u534f\u8bae\u5c42\u68c0\u6d4b\u5f88\u91cd\u8981\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u4ee3\u53cd\u673a\u5668\u4eba\u7cfb\u7edf\u901a\u5e38\u4e0d\u4f1a\u53ea\u4f9d\u8d56\u5355\u4e00\u4fe1\u53f7\u3002\u4e00\u4e2a\u7f51\u7ad9\u4e0d\u4e00\u5b9a\u4f1a\u56e0\u4e3a IP \u5730\u5740\u5c31\u76f4\u63a5\u653e\u884c\u6216\u62e6\u622a\u8bbf\u95ee\uff0c\u800c\u662f\u53ef\u80fd\u901a\u8fc7\u591a\u5c42\u4fe1\u53f7\u8ba1\u7b97\u98ce\u9669\u8bc4\u5206\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u4e2a\u7b80\u5316\u7684\u98ce\u9669\u6a21\u578b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>IP \u4fe1\u8a89\nTLS \u63e1\u624b\u7279\u5f81\nHTTP Headers\n\u6d4f\u89c8\u5668\u6307\u7eb9\nCookie\n\u884c\u4e3a\u6a21\u5f0f\n        \u2193\n\u98ce\u9669\u8bc4\u5206\n        \u2193\n\u653e\u884c \/ \u6311\u6218 \/ \u62e6\u622a<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u8bf7\u6c42\u53ef\u80fd\u4f7f\u7528\u4e86\u4f4f\u5b85\u4ee3\u7406\uff0c\u4f46\u5982\u679c\u5ba2\u6237\u7aef\u8fde\u63a5\u7279\u5f81\u770b\u8d77\u6765\u50cf\u8fc7\u65e7\u811a\u672c\u5e93\uff0c\u800c HTTP Headers \u53c8\u4e0d\u50cf\u771f\u5b9e\u6d4f\u89c8\u5668\uff0c\u90a3\u4e48\u8fd9\u4e2a\u4f1a\u8bdd\u4ecd\u7136\u53ef\u80fd\u88ab\u5224\u5b9a\u4e3a\u53ef\u7591\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u6837\uff0c\u5982\u679c\u6d4f\u89c8\u5668\u6307\u7eb9\u58f0\u79f0\u81ea\u5df1\u662f Windows \u4e0a\u7684 Chrome\uff0c\u4f46\u534f\u8bae\u5c42\u8868\u73b0\u5374\u66f4\u50cf\u975e\u6d4f\u89c8\u5668 HTTP \u5ba2\u6237\u7aef\uff0c\u8fd9\u79cd\u4e0d\u4e00\u81f4\u4e5f\u4f1a\u63d0\u9ad8\u98ce\u9669\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare\u3001Akamai\u3001Imperva\u3001Kasada\u3001PerimeterX\u3001DataDome \u7b49\u5b89\u5168\u7cfb\u7edf\uff0c\u901a\u5e38\u4f1a\u7efc\u5408\u8bc4\u4f30\u8fd9\u4e9b\u5c42\u7ea7\u3002\u5b83\u4eec\u5173\u6ce8\u7684\u662f\u7f51\u7edc\u5c42\u3001\u534f\u8bae\u5c42\u3001\u6d4f\u89c8\u5668\u5c42\u548c\u884c\u4e3a\u5c42\u4e4b\u95f4\u662f\u5426\u4e00\u81f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u4ee3\u7406\u7528\u6237\u9700\u8981\u7406\u89e3 TLS \u5c42\u68c0\u6d4b\u3002\u4ee3\u7406\u53ef\u4ee5\u6539\u53d8\u7f51\u7edc\u8eab\u4efd\uff0c\u4f46\u4e0d\u80fd\u81ea\u52a8\u8ba9\u5ba2\u6237\u7aef\u8868\u73b0\u5f97\u50cf\u771f\u5b9e\u6d4f\u89c8\u5668\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">JA3 \u4e0e\u6d4f\u89c8\u5668\u6307\u7eb9\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u548c\u6d4f\u89c8\u5668\u6307\u7eb9\u7ecf\u5e38\u88ab\u6df7\u6dc6\uff0c\u4f46\u5b83\u4eec\u5904\u4e8e\u4e0d\u540c\u5c42\u7ea7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u662f\u57fa\u4e8e TLS \u63e1\u624b\u884c\u4e3a\u7684\u7f51\u7edc\u5c42\u6307\u7eb9\uff0c\u800c\u6d4f\u89c8\u5668\u6307\u7eb9\u53d1\u751f\u5728\u6d4f\u89c8\u5668\u548c JavaScript \u5c42\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d4f\u89c8\u5668\u6307\u7eb9\u53ef\u80fd\u5305\u62ec Canvas\u3001WebGL\u3001Fonts\u3001Audio\u3001Timezone\u3001Screen\u3001Device Memory\u3001Hardware Concurrency\u3001Language\u3001Plugins \u548c\u5404\u79cd Browser APIs\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5bf9\u6bd4\u7ef4\u5ea6<\/th><th>JA3 \/ JA4 \u534f\u8bae\u6307\u7eb9<\/th><th>\u6d4f\u89c8\u5668\u6307\u7eb9<\/th><\/tr><\/thead><tbody><tr><td>\u6240\u5728\u5c42\u7ea7<\/td><td>\u7f51\u7edc\u5c42 \/ TLS \u5c42<\/td><td>\u6d4f\u89c8\u5668\u5c42 \/ JavaScript \u5c42<\/td><\/tr><tr><td>\u4e3b\u8981\u6765\u6e90<\/td><td>TLS Client Hello<\/td><td>\u6d4f\u89c8\u5668 API \u4e0e\u8fd0\u884c\u65f6\u884c\u4e3a<\/td><\/tr><tr><td>\u793a\u4f8b<\/td><td>TLS \u7248\u672c\u3001Cipher Suites\u3001Extensions<\/td><td>Canvas\u3001WebGL\u3001Fonts\u3001Timezone\u3001Screen<\/td><\/tr><tr><td>\u662f\u5426\u5728\u9875\u9762\u52a0\u8f7d\u524d\u53d1\u751f<\/td><td>\u662f<\/td><td>\u901a\u5e38\u5728\u9875\u9762\u811a\u672c\u6267\u884c\u540e<\/td><\/tr><tr><td>\u662f\u5426\u4f1a\u88ab\u4ee3\u7406\u6539\u53d8<\/td><td>\u4e0d\u4f1a<\/td><td>\u4e0d\u4f1a<\/td><\/tr><tr><td>\u662f\u5426\u53d7\u6d4f\u89c8\u5668\u5f71\u54cd<\/td><td>\u4f1a<\/td><td>\u4f1a<\/td><\/tr><tr><td>\u5e38\u89c1\u7528\u9014<\/td><td>\u8bc6\u522b\u975e\u6d4f\u89c8\u5668\u5ba2\u6237\u7aef\u548c\u81ea\u52a8\u5316\u5de5\u5177<\/td><td>\u8bc6\u522b\u5f02\u5e38\u6d4f\u89c8\u5668\u73af\u5883<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8fd9\u4e9b\u5c42\u7ea7\u4e4b\u95f4\u4e0d\u5339\u914d\uff0c\u8bf7\u6c42\u5c31\u53ef\u80fd\u89e6\u53d1\u4e00\u81f4\u6027\u68c0\u67e5\u3002\u4f8b\u5982\uff0cUser-Agent \u58f0\u79f0\u81ea\u5df1\u662f Chrome\uff0c\u4f46 TLS \u63e1\u624b\u5374\u4e0d\u50cf Chrome\uff0c\u8fd9\u79cd\u77db\u76fe\u53ef\u80fd\u6bd4\u5355\u4e00\u5f02\u5e38\u4fe1\u53f7\u66f4\u53ef\u7591\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f4f\u5b85\u4ee3\u7406\u53ef\u4ee5\u9690\u85cf <a href=\"https:\/\/github.com\/salesforce\/ja3\" target=\"_blank\" rel=\"noopener\">JA3 <\/a>\u5417\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u80fd\u3002\u4f4f\u5b85\u4ee3\u7406\u672c\u8eab\u4e0d\u4f1a\u9690\u85cf\u6216\u4fee\u6539 JA3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7406\u6539\u53d8\u7684\u662f\u7f51\u7edc\u8def\u5f84\u3002\u5b83\u53ef\u4ee5\u5f71\u54cd IP \u5730\u5740\u3001ASN\u3001\u5730\u7406\u4f4d\u7f6e\u548c IP \u4fe1\u8a89\uff0c\u4f46\u4e0d\u4f1a\u81ea\u52a8\u6539\u53d8\u6d4f\u89c8\u5668\u3001HTTP \u5ba2\u6237\u7aef\u6216\u81ea\u52a8\u5316\u6846\u67b6\u751f\u6210\u7684 TLS <code>Client Hello<\/code>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f4f\u5b85\u4ee3\u7406\u53ef\u4ee5\u5e2e\u52a9\u6539\u53d8\u6216\u4f18\u5316\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IP \u5730\u5740<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ASN<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5730\u7406\u4f4d\u7f6e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7edc\u4fe1\u8a89<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u533a\u57df\u8bbf\u95ee\u80fd\u529b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u5b83\u4e0d\u4f1a\u76f4\u63a5\u6539\u53d8\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TLS Client Hello<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JA3 \u6307\u7eb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JA4 \u6307\u7eb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d4f\u89c8\u5668\u6307\u7eb9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP Header \u4e00\u81f4\u6027<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JavaScript \u6267\u884c\u884c\u4e3a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u53ef\u9760\u7684\u81ea\u52a8\u5316\u901a\u5e38\u9700\u8981\u540c\u65f6\u5177\u5907\u826f\u597d\u7684\u4ee3\u7406\u7b56\u7565\u548c\u771f\u5b9e\u7684\u5ba2\u6237\u7aef\u73af\u5883\u3002\u9ad8\u8d28\u91cf\u4f4f\u5b85\u4ee3\u7406\u5e94\u5f53\u4e0e\u73b0\u4ee3\u6d4f\u89c8\u5668\uff0c\u6216\u80fd\u591f\u4ea7\u751f\u771f\u5b9e\u6d4f\u89c8\u5668\u884c\u4e3a\u7684\u81ea\u52a8\u5316\u6846\u67b6\u914d\u5408\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6362\u53e5\u8bdd\u8bf4\uff0c\u4f4f\u5b85\u4ee3\u7406\u5f88\u91cd\u8981\uff0c\u4f46\u5b83\u672c\u8eab\u4e0d\u662f\u5b8c\u6574\u7684\u6307\u7eb9\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u964d\u4f4e\u534f\u8bae\u6307\u7eb9\u68c0\u6d4b\u98ce\u9669\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u76ee\u6807\u4e0d\u5e94\u8be5\u662f\u201c\u7ed5\u8fc7\u201d\u68c0\u6d4b\u7cfb\u7edf\uff0c\u800c\u662f\u6784\u5efa\u66f4\u4e00\u81f4\u3001\u66f4\u771f\u5b9e\u3001\u66f4\u8d1f\u8d23\u4efb\u7684\u81ea\u52a8\u5316\u8bbf\u95ee\u73af\u5883\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u505a\u6cd5\u53ef\u4ee5\u964d\u4f4e\u5ba2\u6237\u7aef\u8fde\u63a5\u7279\u5f81\u4e0d\u4e00\u81f4\u5e26\u6765\u7684\u98ce\u9669\uff0c\u5e76\u63d0\u5347\u8bbf\u95ee\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c3d\u91cf\u4f7f\u7528\u771f\u5b9e\u7684\u73b0\u4ee3\u6d4f\u89c8\u5668\u3002Chrome\u3001Firefox\u3001Safari \u548c Edge \u901a\u5e38\u6bd4\u8f7b\u91cf\u7ea7 HTTP \u5ba2\u6237\u7aef\u66f4\u63a5\u8fd1\u771f\u5b9e\u7528\u6237\u7684 TLS \u884c\u4e3a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u907f\u514d\u4f7f\u7528\u8fc7\u65e7\u7684 Headless \u6d4f\u89c8\u5668\u3002\u65e7\u7248\u672c Headless \u73af\u5883\u53ef\u80fd\u4ea7\u751f\u4e0e\u5f53\u524d\u6d4f\u89c8\u5668\u7248\u672c\u4e0d\u540c\u7684\u6307\u7eb9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u6301 Playwright\u3001Puppeteer \u548c\u6d4f\u89c8\u5668\u4e8c\u8fdb\u5236\u6587\u4ef6\u66f4\u65b0\u3002\u73b0\u4ee3\u81ea\u52a8\u5316\u6846\u67b6\u4f1a\u6301\u7eed\u66f4\u65b0\u6d4f\u89c8\u5668\u6784\u5efa\u548c\u534f\u8bae\u884c\u4e3a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528\u73b0\u4ee3 TLS \u6808\u3002\u8fc7\u65e7\u7684 OpenSSL \u7248\u672c\u6216\u5f02\u5e38\u5ba2\u6237\u7aef\u5e93\uff0c\u53ef\u80fd\u4ea7\u751f\u5bb9\u6613\u88ab\u5206\u7c7b\u7684\u8fde\u63a5\u7279\u5f81\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u6301 Headers \u4e0e\u6d4f\u89c8\u5668\u884c\u4e3a\u4e00\u81f4\u3002\u5982\u679c\u534f\u8bae\u5c42\u8868\u73b0\u50cf Chrome\uff0c\u4f46 Headers \u50cf\u81ea\u5b9a\u4e49\u811a\u672c\uff0c\u8fd9\u79cd\u4e0d\u4e00\u81f4\u4f1a\u63d0\u9ad8\u98ce\u9669\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u6301\u4f1a\u8bdd\u4e00\u81f4\u6027\u3002\u4e0d\u8981\u5728\u767b\u5f55\u3001\u7ed3\u8d26\u3001\u540e\u53f0\u3001\u4eea\u8868\u76d8\u6216\u591a\u6b65\u9aa4\u6d4f\u89c8\u8fc7\u7a0b\u4e2d\u9891\u7e41\u5207\u6362 IP\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u9700\u8981\u771f\u5b9e\u7f51\u7edc\u8eab\u4efd\u7684\u5de5\u4f5c\u6d41\u4e2d\u4f7f\u7528\u4f4f\u5b85\u4ee3\u7406\u6216 ISP \u4ee3\u7406\u3002\u5b83\u4eec\u53ef\u4ee5\u63d0\u5347 IP \u4fe1\u8a89\u548c\u5730\u533a\u4e00\u81f4\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5e95\u5c42 TLS \u4fee\u6539\u3002\u81ea\u5b9a\u4e49 TLS \u5e93\u6216\u624b\u52a8\u4fee\u6539\u6307\u7eb9\uff0c\u53ef\u80fd\u9020\u6210\u65b0\u7684\u4e0d\u4e00\u81f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u53c2\u8003\u4e0b\u9762\u8fd9\u4e2a Checklist\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4f7f\u7528\u5f53\u524d\u7a33\u5b9a\u7248\u672c Chrome \u6216 Firefox\n\u4fdd\u6301 Playwright \u6216 Puppeteer \u66f4\u65b0\n\u8ba9 Headers \u4e0e\u6d4f\u89c8\u5668\u884c\u4e3a\u4e00\u81f4\n\u5728\u9002\u5408\u573a\u666f\u4e2d\u4f7f\u7528\u4f4f\u5b85\u4ee3\u7406\u6216 ISP \u4ee3\u7406\n\u4f1a\u8bdd\u578b\u4efb\u52a1\u4f7f\u7528\u7c98\u6027\u4f1a\u8bdd\n\u907f\u514d\u5728\u4f1a\u8bdd\u4e2d\u9014\u9891\u7e41\u8f6e\u6362 IP\n\u76d1\u63a7\u9519\u8bef\u3001\u6311\u6218\u548c\u54cd\u5e94\u8d28\u91cf\n\u9075\u5b88\u7f51\u7ad9\u6761\u6b3e\u548c\u8bbf\u95ee\u89c4\u5219<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u534f\u8bae\u6307\u7eb9\u4e0e Web Scraping<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u534f\u8bae\u6307\u7eb9\u5bf9 Web Scraping \u5c24\u5176\u91cd\u8981\uff0c\u56e0\u4e3a\u5f88\u591a\u722c\u866b\u811a\u672c\u4f7f\u7528\u7684 HTTP \u5ba2\u6237\u7aef\u5e76\u4e0d\u50cf\u771f\u5b9e\u6d4f\u89c8\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Python Requests\u3001Go HTTP \u5ba2\u6237\u7aef\u3001curl\u3001Java HTTP \u5e93\u548c\u57fa\u4e8e OpenSSL \u7684\u539f\u59cb\u5ba2\u6237\u7aef\uff0c\u53ef\u80fd\u4ea7\u751f\u5bb9\u6613\u533a\u522b\u4e8e Chrome \u6216 Safari \u7684\u8fde\u63a5\u7279\u5f81\u3002\u8fd9\u4e9b\u5de5\u5177\u6548\u7387\u5f88\u9ad8\uff0c\u4e5f\u975e\u5e38\u9002\u5408\u5f88\u591a\u7b80\u5355\u4efb\u52a1\uff0c\u4f46\u5bf9\u4e8e\u5177\u5907\u9ad8\u7ea7 Bot Protection \u7684\u7f51\u7ad9\uff0c\u5b83\u4eec\u672a\u5fc5\u662f\u6700\u4f73\u9009\u62e9\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Playwright \u548c Puppeteer \u8fd9\u7c7b\u6d4f\u89c8\u5668\u81ea\u52a8\u5316\u5de5\u5177\uff0c\u5728\u590d\u6742\u7f51\u7ad9\u4e0a\u901a\u5e38\u8868\u73b0\u66f4\u597d\uff0c\u56e0\u4e3a\u5b83\u4eec\u8fd0\u884c\u771f\u5b9e\u6d4f\u89c8\u5668\u5f15\u64ce\u3002\u5b83\u4eec\u53ef\u4ee5\u6267\u884c JavaScript\uff0c\u5904\u7406 Cookie\uff0c\u52a0\u8f7d\u52a8\u6001\u5185\u5bb9\uff0c\u5e76\u751f\u6210\u66f4\u63a5\u8fd1\u6d4f\u89c8\u5668\u5c42\u9762\u7684\u884c\u4e3a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u8fc7\uff0c\u5373\u4f7f\u4f7f\u7528\u6d4f\u89c8\u5668\u81ea\u52a8\u5316\uff0c\u4e5f\u9700\u8981\u8c28\u614e\u914d\u7f6e\u3002\u771f\u5b9e\u6d4f\u89c8\u5668\u5982\u679c\u642d\u914d\u4e0d\u7a33\u5b9a\u7684\u4ee3\u7406\u8f6e\u6362\u3001\u4e0d\u5339\u914d\u7684 Headers\u3001\u4e0d\u4e00\u81f4\u7684\u65f6\u533a\u6216\u5f02\u5e38\u4f1a\u8bdd\u884c\u4e3a\uff0c\u4ecd\u7136\u53ef\u80fd\u89e6\u53d1\u98ce\u9669\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u7b80\u5355\u516c\u5f00\u9875\u9762\uff0c\u8f7b\u91cf\u7ea7 HTTP \u5ba2\u6237\u7aef\u53ef\u80fd\u5df2\u7ecf\u8db3\u591f\u3002\u5bf9\u4e8e\u52a8\u6001\u7f51\u7ad9\u3001\u767b\u5f55\u6d41\u7a0b\u3001\u7535\u5546\u76d1\u63a7\u6216\u5177\u5907\u673a\u5668\u4eba\u9632\u62a4\u7684\u9875\u9762\uff0c\u73b0\u4ee3\u6d4f\u89c8\u5668\u73af\u5883\u7ed3\u5408\u7a33\u5b9a\u4ee3\u7406\u7b56\u7565\uff0c\u901a\u5e38\u66f4\u53ef\u9760\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ColaProxy \u5982\u4f55\u63d0\u4f9b\u5e2e\u52a9\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/blog\/zh\/colaproxy%e8%87%aa%e5%8a%a8%e5%8c%96%e4%bb%a3%e7%90%86%e6%96%b9%e6%a1%88\" data-type=\"post\" data-id=\"1680\">ColaProxy<\/a> \u4e3a\u6570\u636e\u91c7\u96c6\u3001\u6d4f\u89c8\u5668\u81ea\u52a8\u5316\u3001SEO \u76d1\u63a7\u3001\u7535\u5546\u60c5\u62a5\u548c\u4f01\u4e1a\u7ea7 Web \u5de5\u4f5c\u6d41\u63d0\u4f9b\u4ee3\u7406\u57fa\u7840\u8bbe\u65bd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ColaProxy \u652f\u6301\u4f4f\u5b85\u4ee3\u7406\u3001ISP \u4ee3\u7406\u3001\u79fb\u52a8\u4ee3\u7406\u3001\u8f6e\u6362\u4f1a\u8bdd\u3001\u7c98\u6027\u4f1a\u8bdd\u3001HTTP(S)\u3001SOCKS5\uff0c\u5e76\u8986\u76d6 195+ \u4e2a\u56fd\u5bb6\u548c\u5730\u533a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9700\u8981\u660e\u786e\u7684\u662f\uff1a\u4ee3\u7406\u672c\u8eab\u4e0d\u4f1a\u4fee\u6539 TLS \u6307\u7eb9\u3002ColaProxy \u4e0d\u4f1a\u201c\u7ed5\u8fc7\u201dJA3 \u6216 JA4 \u68c0\u6d4b\u3002TLS \u6307\u7eb9\u7531\u5ba2\u6237\u7aef\u3001\u6d4f\u89c8\u5668\u6216\u81ea\u52a8\u5316\u6846\u67b6\u751f\u6210\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ColaProxy \u80fd\u63d0\u4f9b\u5e2e\u52a9\u7684\u662f\u7f51\u7edc\u8eab\u4efd\u5c42\u3002\u9ad8\u8d28\u91cf\u4f4f\u5b85\u4ee3\u7406\u548c ISP \u4ee3\u7406\u53ef\u4ee5\u5728\u914d\u5408 Chrome\u3001Playwright\u3001Puppeteer \u6216 Selenium \u7b49\u73b0\u4ee3\u6d4f\u89c8\u5668\u73af\u5883\u65f6\uff0c\u63d0\u4f9b\u66f4\u771f\u5b9e\u7684 IP \u4fe1\u8a89\u3001\u66f4\u597d\u7684\u5730\u533a\u4e00\u81f4\u6027\u548c\u66f4\u7a33\u5b9a\u7684\u8bbf\u95ee\u6a21\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u5982\u679c\u56e2\u961f\u4f7f\u7528 Playwright \u505a\u7535\u5546\u76d1\u63a7\uff0cColaProxy \u53ef\u4ee5\u63d0\u4f9b\u6307\u5b9a\u56fd\u5bb6\u7684\u4f4f\u5b85\u4ee3\u7406\u548c\u7c98\u6027\u4f1a\u8bdd\uff0c\u8ba9\u6d4f\u89c8\u5668\u73af\u5883\u3001IP \u5730\u533a\u3001\u4f1a\u8bdd\u884c\u4e3a\u548c\u76ee\u6807\u5e02\u573a\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u5927\u89c4\u6a21\u516c\u5f00\u6570\u636e\u91c7\u96c6\uff0c\u8f6e\u6362\u4f4f\u5b85\u4ee3\u7406\u53ef\u4ee5\u5e2e\u52a9\u56e2\u961f\u628a\u8bbf\u95ee\u5206\u6563\u5230\u66f4\u5e7f\u6cdb\u7684\u7f51\u7edc\u4e2d\u3002\u5bf9\u4e8e\u8d26\u53f7\u76f8\u5173\u6216\u591a\u6b65\u9aa4\u5de5\u4f5c\u6d41\uff0c\u7c98\u6027 ISP \u6216\u4f4f\u5b85\u4f1a\u8bdd\u901a\u5e38\u80fd\u63d0\u4f9b\u66f4\u597d\u7684\u8fde\u7eed\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u53ef\u9760\u7684\u65b9\u6848\u4e0d\u662f\u53ea\u4f7f\u7528\u4ee3\u7406\uff0c\u800c\u662f\u5c06\u73b0\u4ee3\u6d4f\u89c8\u5668\u81ea\u52a8\u5316\u3001\u771f\u5b9e\u7f51\u7edc\u8eab\u4efd\u3001\u4e00\u81f4 Headers\u3001\u7a33\u5b9a\u4f1a\u8bdd\u548c\u8d1f\u8d23\u4efb\u7684\u8bbf\u95ee\u884c\u4e3a\u7ed3\u5408\u8d77\u6765\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee3\u7406\u4f1a\u6539\u53d8 JA3 \u5417\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u4f1a\u3002\u4ee3\u7406\u4f1a\u6539\u53d8\u7f51\u7edc\u8def\u5f84\u3001IP \u5730\u5740\u3001ASN \u548c\u5730\u7406\u4f4d\u7f6e\uff0c\u4f46\u4e0d\u4f1a\u76f4\u63a5\u6539\u53d8\u6d4f\u89c8\u5668\u6216 HTTP \u5ba2\u6237\u7aef\u751f\u6210\u7684 TLS Client Hello\u3002JA3 \u7531\u5ba2\u6237\u7aef\u7684 TLS \u884c\u4e3a\u51b3\u5b9a\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7f51\u7ad9\u53ef\u4ee5\u68c0\u6d4b TLS \u6307\u7eb9\u5417\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u3002\u7f51\u7ad9\u548c\u5b89\u5168\u7cfb\u7edf\u53ef\u4ee5\u5206\u6790 TLS \u63e1\u624b\u7279\u5f81\uff0c\u5e76\u5c06\u5176\u4e0e\u5df2\u77e5\u6d4f\u89c8\u5668\u3001\u81ea\u52a8\u5316\u5de5\u5177\u3001\u811a\u672c\u5e93\u6216\u53ef\u7591\u5ba2\u6237\u7aef\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">JA4 \u4f1a\u53d6\u4ee3 JA3 \u5417\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">JA4 \u662f\u66f4\u65b0\u3001\u66f4\u7ed3\u6784\u5316\u7684\u6307\u7eb9\u65b9\u6cd5\uff0c\u6539\u5584\u4e86 JA3 \u5728\u73b0\u4ee3\u534f\u8bae\u4e0b\u7684\u90e8\u5206\u5c40\u9650\u3002\u4f46 JA3 \u4ecd\u7136\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u5728\u6d41\u91cf\u5206\u6790\u4e2d\u4f9d\u7136\u91cd\u8981\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chrome \u7684 JA3 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