{"version":"1.0","provider_name":"Jui-Nan Lin's Blog","provider_url":"https:\/\/jnlin.org","author_name":"jnlin","author_url":"https:\/\/jnlin.org\/author\/jnlin\/","title":"\u7528 ETag \u8ffd\u8e64\u4f7f\u7528\u8005","html":"\u771f\u53ef\u4ee5\u8aaa\u662f\u9053\u9ad8\u4e00\u5c3a\u9b54\u9ad8\u4e00\u4e08\u22ef\u22ef\r\n\r\n\u8b66\u544a\uff1a\u4ee5\u4e0b\u6587\u9577\uff0c\u5982\u679c\u53ea\u60f3\u77e5\u9053 ETag \u600e\u9ebc\u9032\u884c\u8ffd\u8e64\u7684\uff0c\u8acb\u76f4\u63a5\u5f9e\u6700\u5f8c\u4e00\u6bb5\u8b80\u8d77\u3002\r\n\r\n\u70ba\u4e86\u77ad\u89e3\u4f7f\u7528\u8005\u7684\u884c\u70ba\uff0c\u6295\u653e\u4f7f\u7528\u8005\u559c\u6b61\u7684\u5167\u5bb9\u6216\u662f\u53ef\u80fd\u6709\u8208\u8da3\u7684\u5ee3\u544a\uff0c\u7db2\u7ad9\u6703\u4f7f\u7528\u5404\u5f0f\u5404\u6a23\u7684\u65b9\u6cd5\u4f86\u7d00\u9304\u4f7f\u7528\u8005\u7684\u700f\u89bd\u884c\u70ba\u3002\u4f8b\u5982 Amazon<\/a> \u6703\u7d00\u9304\u4f7f\u7528\u8005\u770b\u904e\u54ea\u4e9b\u6216\u8cfc\u8cb7\u4e86\u54ea\u4e9b\u5546\u54c1\uff0c\u7136\u5f8c\u628a\u4f7f\u7528\u8005\u6709\u53ef\u80fd\u6709\u8208\u8da3\u7684\u5546\u54c1\u986f\u793a\u51fa\u4f86\uff0c\u5e0c\u671b\u4f7f\u7528\u8005\u80fd\u7e7c\u7e8c\u5728 Amazon \u8cfc\u8cb7\u3002\u5c0d\u65bc\u5ee3\u544a\u806f\u64ad\u7db2<\/a>\u4f86\u8aaa\uff0c\u5982\u679c\u80fd\u6295\u653e\u4f7f\u7528\u8005\u559c\u6b61\u7684\u5167\u5bb9\uff0c\u9032\u800c\u63d0\u9ad8\u9ede\u64ca\u7387\uff0c\u4fbf\u80fd\u7372\u5f97\u66f4\u597d\u7684\u6210\u6548\uff0c\u589e\u52a0\u6536\u5165\u3002\u4f46\u662f\u5ee3\u544a\u806f\u64ad\u7db2\u4e26\u4e0d\u50cf Amazon \u9019\u985e\u96fb\u5b50\u5546\u52d9\u7db2\u7ad9\uff0c\u5f37\u5236\u4f7f\u7528\u8005\u5fc5\u9808\u767b\u5165\u624d\u80fd\u4f7f\u7528\uff0c\u800c\u4e14\u5ee3\u544a\u806f\u64ad\u7db2\u5927\u591a\u6a6b\u8de8\u591a\u500b\u7db2\u7ad9\uff08\u4f8b\u5982\u5f88\u591a\u7ad9\u90fd\u6703\u639b AdSense\uff09\uff0c\u56e0\u6b64\u4e00\u822c\u4f86\u8aaa\u6703\u63a1\u7528 Third Party Cookies ((\u53ef\u53c3\u8003 fcamel \u7684\u6587\u7ae0: Cookie \u96dc\u8a18<\/a>)) \u7d00\u9304 User \u7684\u700f\u89bd\u7d00\u9304\u3002\r\n\r\n\u9019\u9020\u6210\u4e86\u4e00\u500b\u554f\u984c\uff1a\u5230\u5e95\u662f\u8ab0\u53ef\u4ee5\u64c1\u6709\u6211\u5011\u300c\u770b\u904e\u7684\u7db2\u7ad9\u7684\u5217\u8868\u300d\u9019\u500b\u8cc7\u6599\uff1f\u76f8\u4fe1\u6c92\u6709\u4eba\u9858\u610f\u8b93\u5927\u5bb6\u77e5\u9053\u81ea\u5df1\u5728\u770b\u67d0\u4e9b\u5bb3\u7f9e\u7684\u7db2\u7ad9\u5427\u3002\u4f46\u5982\u679c\u9019\u4e9b\u7db2\u7ad9\u6709\u52a0\u5165\u5ee3\u544a\u806f\u64ad\u7db2\uff0c\u5ee3\u544a\u806f\u64ad\u7db2\u4fbf\u53ef\u4ee5\u77e5\u9053\u4f60\u700f\u89bd\u904e\u9019\u4e9b\u7db2\u7ad9\uff0c\u65bc\u662f\u5728\u5176\u4ed6\u4e00\u822c\u7684\u7ad9\u53f0\uff0c\u4fbf\u6709\u53ef\u80fd\u51fa\u73fe\u4ee4\u4eba\u5bb3\u7f9e\u7684\u5ee3\u544a\u5167\u5bb9\u3002\u9019\u9020\u6210\u4e86\u96b1\u79c1\u6d29\u6f0f\u554f\u984c\u3002\r\n\r\n\u65bc\u662f\u4eba\u5011\u63a1\u7528\u4e86\u5404\u5f0f\u5404\u6a23\u7684\u53cd\u5236\u65b9\u6cd5\uff1a\u6709\u7684\u88dd\u4e86 AdBlock \u773c\u4e0d\u898b\u70ba\u6de8\uff0c\u4f46\u514d\u8cbb\u7684\u670d\u52d9\u5927\u591a\u6578\u4f9d\u8cf4\u5ee3\u544a\u70ba\u751f\uff0c\u5982\u679c\u5927\u5bb6\u90fd\u6392\u65a5\u5ee3\u544a\uff0c\u9023 Google \u90fd\u6d3b\u4e0d\u4e0b\u53bb\uff1b\u6709\u7684\u4eba\u63d0\u51fa\u4e86\u4e00\u500b DNT (Do Not Track)<\/a>\u7684\u5ba3\u544a\uff0c\u5e0c\u671b\u7db2\u7ad9\u80fd\u5920\u9075\u5b88\u3002\u4e0d\u904e\u9019\u5be6\u5728\u592a\u7406\u60f3\u5316\u4e86\uff0c\u4e0d\u77e5\u9053\u8981\u4f55\u5e74\u4f55\u6708\u5168\u4e16\u754c\u7684\u7db2\u7ad9\u624d\u6703\u652f\u63f4\u3002\r\n\r\n\u53e6\u5916\uff0c\u700f\u89bd\u5668\u5ee0\u5546\u4e5f\u63a8\u51fa\u4e86\u4ed6\u5011\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u5176\u4e2d\u4e00\u500b\u662f\u300c\u96b1\u79c1\u6a21\u5f0f\u300d\uff0c\u4e5f\u5c31\u662f\u4e0d\u7d00\u9304\u4efb\u4f55\u7684 Cookie\uff0c\u6bcf\u6b21\u91cd\u958b\u700f\u89bd\u5668\u90fd\u9700\u8981\u91cd\u65b0\u767b\u9304\u7db2\u7ad9\u3002\u4f46\u9019\u5c0d\u666e\u7f85\u5927\u773e\u4f86\u8aaa\u5be6\u5728\u592a\u9ebb\u7169\u4e86\uff0c\u56e0\u6b64\u53c8\u6709\u53e6\u4e00\u500b\u65b9\u6848\uff1a\u7981\u6b62 Third Party Cookie\u3002\u4e5f\u5c31\u662f\u8aaa\uff0c\u53ea\u5141\u8a31\u4f7f\u7528\u8005\u4e3b\u52d5\u9023\u4e0a\u7684\u7db2\u7ad9\uff08\u4f8b\u5982\u4f7f\u7528\u8005\u559c\u611b\u7684\u793e\u4ea4\u7db2\u7ad9\uff0c\u90e8\u843d\u683c\uff0c\u6216\u662f\u5f71\u97f3\u7db2\u7ad9\uff09\u8a2d\u5b9a Cookie\uff0c\u800c\u4f7f\u7528\u8005\u6c92\u6709\u4e3b\u52d5\u9023\u904e\u53bb\u7684\u7db2\u7ad9\uff08\u4f8b\u5982\u5ee3\u544a\u806f\u64ad\u7db2\uff09\u5247\u7981\u6b62\u8a2d\u5b9a Cookie\u3002\u9019\u6a23\u5c31\u907f\u514d\u5ee3\u544a\u806f\u64ad\u7db2\u5229\u7528 Third Party Cookies \u4f86\u7d00\u9304\u4f7f\u7528\u8005\u700f\u89bd\u7d00\u9304\u4e86\u3002iOS \u4e0a\u7684 Safari \u9810\u8a2d\u662f\u7981\u6b62 Third Party Cookies \u7684 ((\u7d50\u679c Google \u767c\u73fe Safari \u6709 Bug \u53ef\u4ee5\u7e5e\u958b\u9019\u500b\u9650\u5236\uff0c\u4e5f\u5229\u7528\u4e86\u9019\u500b Bug\uff0c\u65bc\u662f\u5c31\u88ab\u544a\u4e86<\/a>\u3002)) \uff0c\u800c\u539f\u672c Firefox \u6253\u7b97\u4e5f\u6539\u70ba\u9810\u8a2d\u7981\u6b62\uff0c\u4e0d\u904e\u73fe\u5728\u5ef6\u9072\u4e86\u9019\u500b\u8a08\u756b\u3002\r\n\r\n\u770b\u8d77\u4f86\uff0c\u672a\u4f86\u4f7f\u7528 Cookie \u4f86\u8ffd\u8e64\u7684\u65b9\u6cd5\u6703\u8d8a\u4f86\u8d8a\u53d7\u5230\u9650\u5236\uff0c\u65bc\u662f\u6709\u8a31\u591a\u66ff\u4ee3\u65b9\u6848\u51fa\u73fe\uff0c\u50cf\u662f\u5229\u7528 Flash\uff0c\u6216\u662f HTML5 \u7684 LocalStorage \u7b49\u7b49\uff0c\u4f46\u90fd\u6709\u4e00\u4e9b\u7f3a\u9ede\u3002\u4eca\u5929\u770b\u5230\u6709\u4eba\u63d0\u51fa\u7528 ETag<\/a> \u4f86\u8ffd\u8e64\uff0c\u60f3\u4e86\u4e00\u4e0b\u767c\u73fe\u6c92\u4ec0\u9ebc\u7834\u7dbb\uff0c\u4f7f\u7528\u8005\u66f4\u96e3\u9632\u6b62\u8ffd\u8e64\u4e86\u3002\r\n\r\nETag \u662f\u7528\u4f86\u907f\u514d\u4f7f\u7528\u8005\u4e0b\u8f09\u5df2\u7d93\u5b58\u5728\u700f\u89bd\u5668\u5feb\u53d6\u88e1\u9762\u7684\u8cc7\u6599\uff0c\u9032\u800c\u52a0\u901f\u4f7f\u7528\u8005\u700f\u89bd\u7db2\u7ad9\u901f\u5ea6\u7684\u529f\u80fd\u3002\u5927\u90e8\u5206\u7684\u7db2\u7ad9\u4e26\u4e0d\u6703\u5e38\u5e38\u5927\u6539\u7248\uff0c\u65bc\u662f\u6703\u6709\u4e00\u4e9b CSS\u3001Javascript\u3001\u5716\u7247\u662f\u4e0d\u5e38\u66f4\u52d5\u7684\uff0c\u5982\u679c\u9019\u4e9b\u8cc7\u6599\u4e0b\u8f09\u4e00\u6b21\u5f8c\u5c31\u5b58\u5728\u4f7f\u7528\u8005\u96fb\u8166\u4e2d\uff0c\u4e0b\u6b21\u4f7f\u7528\u8005\u62dc\u8a2a\u7db2\u7ad9\u6642\uff0c\u5c31\u4e0d\u9700\u8981\u91cd\u65b0\u5411\u7db2\u7ad9\u6293\u53d6\uff0c\u53ef\u4ee5\u7bc0\u7701\u983b\u5bec\u8207\u6642\u9593\u3002\u7576\u700f\u89bd\u5668\u7b2c\u4e00\u6b21\u4e0b\u8f09\u8cc7\u6599\u6642\uff0c\u7db2\u7ad9\u53ef\u4ee5\u6307\u5b9a\u6a94\u6848\u7684 ETag \u503c\uff0c\u700f\u89bd\u5668\u6703\u8a18\u4f4f\u3002\u4e0b\u6b21\u8a2a\u554f\u7db2\u7ad9\u6642\uff0c\u700f\u89bd\u5668\u6703\u5148\u8a62\u554f\u7db2\u7ad9\u540c\u4e00\u500b\u6a94\u6848\u7684 ETag \u503c\u662f\u5426\u76f8\u540c\uff0c\u5982\u679c\u4e00\u6a23\u5c31\u4e0d\u91cd\u65b0\u6293\u53d6\u3002\r\n\r\n<\/a>\r\nETag \u793a\u610f\u5716\uff0c\u53d6\u81ea http:\/\/lucb1e.com\/rp\/cookielesscookies\/<\/a>\r\n\r\n\u56e0\u70ba\u700f\u89bd\u5668\u6703\u5c07\u8a18\u4f4f\u7684 ETag \u503c\u9001\u56de\u7db2\u7ad9\uff0c\u56e0\u6b64\u7db2\u7ad9\u53ea\u8981\u5728\u9801\u9762\u4e2d\u63d2\u5165 1px * 1px \u7684 GIF\uff0c\u7136\u5f8c\u91dd\u5c0d\u6bcf\u500b\u6c92\u6709\u50b3 ETag \u4f86\u7684\u700f\u89bd\u5668\u7d66\u5b9a\u4e00\u500b\u7368\u4e00\u7121\u4e8c\u7684 ETag \u503c\uff08\u4e26\u7d00\u9304\u5728\u8cc7\u6599\u5eab\u4e2d\uff09\uff0c\u4e0b\u6b21\u4f7f\u7528\u8005\u56de\u8a2a\u6642\uff0c\u4fbf\u53ef\u4ee5\u5206\u8fa8\u51fa\u9019\u500b\u4f7f\u7528\u8005\u66fe\u7d93\u4f86\u904e\u9019\u500b\u7db2\u7ad9\u3002\u5c0d\u65bc\u5ee3\u544a\u806f\u64ad\u7db2\u4f86\u8aaa\uff0c\u53ea\u9700\u8981\u5728\u6bcf\u500b\u7ad9\u53f0\u52a0\u5165\u9019\u500b\u6a5f\u5236\uff0c\u53c8\u53ef\u4ee5\u723d\u723d\u7d00\u9304\u4f7f\u7528\u8005\u66fe\u7d93\u700f\u89bd\u904e\u7684\u7db2\u7ad9\u4e86\u22ef\u22ef\r\n\r\nReference: http:\/\/lucb1e.com\/rp\/cookielesscookies\/<\/a>","type":"rich"}