关键词放在什么位置最利于优化？

[[{"txt": "\u5927\u8fde\u59dc\u6587SEOer\u4e3a\u60a8\u4ecb\u7ecd\u5173\u952e\u8bcd\u653e\u5728\u4ec0\u4e48\u4f4d\u7f6e\u6700\u5229\u4e8e\u4f18\u5316\uff1f"}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa4"]}, {"txt": "\u9875\u9762\u4e0a\u7684\u4ec0\u4e48\u4f4d\u7f6e\u653e\u7740\u5173\u952e\u8bcd\u6700\u597d\uff1f\u641c\u7d22\u5f15\u64ce\u8ba4\u4e3a\uff0c\u7f51\u9875\u4e0a\u91cd\u8981\u7684\u5730\u65b9\u5f80\u5f80\u653e\u7740\u5173\u952e\u8bcd\u3002\u2460 \u7f51\u9875\u5934\u90e8\u6807\u7b7e\uff08\u5982\uff1aDescription Tag-\u63cf\u8ff0\u6807\u7b7e\u3001\u5173\u952e\u8bcd\u6807\u7b7e\u4ee5\u53catitle\u7b49\uff09\u5e94\u8be5\u653e\u7740\u5173\u952e\u8bcd\uff1b"}, {"txt": "\u2461 \u9996\u5148\u5173\u952e\u8bcd\u5e94\u8be5\u5728\u6587\u7ae0\u7684\u6bcf\u4e2a\u6bb5\u843d\u91cc\uff1b"}, {"txt": "\u2462 \u7f51\u9875\u4e0a\u56fe\u7247\u7684ALT\u6807\u7b7e\u91cc\u5e94\u8be5\u5199\u4e0a\u5173\u952e\u8bcd\uff1b"}, {"txt": "\u2463 \u53ef\u4ee5\u8003\u8651\u628a\u5173\u952e\u8bcd\u4f5c\u4e3a\u5b50\u76ee\u5f55\uff1b"}, {"txt": "\u2464 \u7f51\u9875\u4e2d\u8c08\u5230\u5176\u4ed6\u7f51\u9875\u7684\u5173\u952e\u8bcd\u65f6\uff0c\u4e0d\u8981\u5fd8\u4e86\u6dfb\u52a0\u94fe\u63a5\u5e76\u6307\u5411\u90a3\u4e2a\u7f51\u9875\uff1b\u6dfb\u52a0\u5173\u952e\u8bcd\u65f6\uff0c\u5e94\u8be5\u8003\u8651\u7684\u5bf9\u8c61\u662f\u7f51\u7ad9\u7684\u7528\u6237\uff0c\u800c\u4e0d\u662f\u641c\u7d22\u5f15\u64ce\u3002\u4e0d\u8981\u91c7\u7528\u4efb\u4f55\u624b\u6bb5\u6b3a\u9a97\u641c\u7d22\u5f15\u64ce\uff0c\u5426\u5219\u5e26\u6765\u7684\u540e\u679c\u5c06\u4f1a\u662f\u975e\u5e38\u6c89\u91cd\u7684\u3002"}], [{"txt": ["\u6ce8\u610f\u4e8b\u9879"]}, {"txt": "\u5982\u679c\u4f60\u89c9\u5f97\u5bf9\u4f60\u6709\u5e2e\u52a9\u5c31\u6295\u4e2a\u7968\u5427\u3002"}]]