<a href="http://www.nsclick.com" target="_blank">中国最精确的无效链接检测工具</a>

<FORM METHOD=POST ACTION="http://www.nsclick.com/checkurl.asp" name="ipform" target="_blank"> <tr><td align="center">网页地址：<input type="text" name="checkurl" size="25"> <input type="submit" value="检测"><INPUT TYPE="hidden" name="action" value="2"> </td></tr></FORM>