fyljp

本插件用于记录搜索引擎的抓取时间及抓取链接。目前支持搜索引擎：百度、谷歌、360、神马、有道、搜狗、必应、Alexa、Yandex、WordPress，以及其他表示中包含Spider关键字的抓取蜘蛛。
This plugin can record where and when the Search Engine visited. Easy but useful.It can recognize the Search Engine of Baidu,Google,Bing,Yandex,Alexa,WordPress,360,Sm,Youdao,sogou.

SpiderDisplay

本插件用于记录搜索引擎的抓取时间及抓取链接。目前支持搜索引擎：百度、谷歌、360、神马、有道、搜狗、必应、Alexa、Yandex、WordPress，以及其他表示中包含Spider关键字的抓取蜘蛛。

yunheyun

Count how many times search engine crawls comes to your blog, and the last time it comes. Display in the admin menu. Now we support googlebot, baiduspider and msnbot, but you can add more by yourself in the admin menu.
<h3>Arbitrary section</h3>
You may provide arbitrary sections, in the same format as the ones above. This may be of use for extremely complicated 
plugins where more information needs to be conveyed that doesn’t fit into the categories of “description” or 
“installation.” Arbitrary sections will be shown below the built-in sections outlined above.
<h3>A brief Markdown Example</h3>
Ordered list:
<ol>
<li>Some feature</li>
<li>Another feature</li>
<li>Something else about the plugin</li>
</ol>
Unordered list:
<ul>
<li>something</li>
<li>something else</li>
<li>third thing</li>
</ul>
Here’s a link to <a href="https://wordpress.org/" title="Your favorite software" rel="ugc">WordPress</a> and one to <a href="http://daringfireball.net/projects/markdown/syntax" title="Markdown is what the parser uses to process much of the readme file" rel="nofollow ugc">Markdown’s Syntax Documentation</a>. 
Titles are optional, naturally.
Markdown uses email style notation for blockquotes and I’ve been told:
<blockquote>
Asterisks for emphasis. Double it up for strong.
</blockquote>
<pre><code><?php code(); // goes in backticks ?>
</code></pre>

Bot Counter

Count how many times crawls comes to your blog, and the last time it comes.

SpiderDisplay vs Bot Counter