仅允许在index.html 上建立SE 索引
阻止 * 并只允许主要搜索引擎仅索引该网站的索引页的最短方法是什么？
User-agent: *
Disallow: /
User-agent: Googlebot
Disallow: /
Allow: index.html
User-agent: Slurp
Disallow: /
Allow: index.html
User-agent: msn
Disallow: /
Allow: index.html
这行得通吗？
What would be the shortest method to block * and only allow just Major Search Engines to index the index page of the site only?
User-agent: *
Disallow: /
User-agent: Googlebot
Disallow: /
Allow: index.html
User-agent: Slurp
Disallow: /
Allow: index.html
User-agent: msn
Disallow: /
Allow: index.html
Would this work?
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是的，这将是最短的方法。这不一定是正确的。
并非所有机器人都支持
Allow指令。当同时存在User-agent: *部分和User-agent: Specific-bot部分适用时，一些机器人对于如何解释 robots.txt 感到困惑。为了确保它有效，您需要执行以下操作：
如果您不想完成所有这些工作，那么最好的办法是测试您感兴趣的每个引擎并查看他们是否接受您建议的 robots.txt 文件。如果没有，请尝试更长的版本。
Yes, that would be the shortest way to do it. It's not necessarily correct.
Not all bots support the
Allowdirective. And some bots are confused about how to interpret the robots.txt when there is both aUser-agent: *section and aUser-agent: Specific-botsection that apply.To be sure it would work, you'd want to do something like this:
If you don't want to do all that work, then the best thing to do would be to test each of the engine's you're interested in and see if they'll accept the robots.txt file you proposed. If they don't, try the longer version.