Robots

META

<META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW">

阻挡漫游器进入特定的网页

not allow robots to enter a page
the page will become no index for major search engines

如果您只要阻挡漫游器进入特定的网页，
请在网页的 HTML 程序代码里加入如下的 meta 标签：
 

如果您不介意其它的漫游器，
只 单单不要 Google，请使用下面的指令：

Robots

META

<META NAME="ROBOTS" CONTENT="NOODP"> 
<META NAME="GOOGLEBOT" CONTENT="NOODP">

no ODP .. 不使用ODP 所收录的数据

<META NAME="ROBOTS" CONTENT="NOODP"> 
or
<META NAME="GOOGLEBOT" CONTENT="NOODP">

Web masters can request major bots not to use ODP data
but use the current site info.

To add the NOODP META Tag to your site 
to prevent Google using your Dmoz title and description in 
(search engine results page) SERPs
add the following code to the head of your page

告知 bots 网络收录机器人不使用ODP数据
ODP是Open Directory Project的缩称
何时使用:
只有在你的网页有被ODP所收录在
索引数据库中 :例如 DMOZ

Robots

META

<meta name="Revisit-After" content="x Days">

To tell the search engine how often to spider this page. 
You may set it between 1 days and one year.
----------------------------------------
Revisit-After Meta Tag is not supported by 
any major search engines
It maybe looks important but spiders may not follow the tag also

Robots

META

<META NAME="ROBOTS" CONTENT="NOINDEX,FOLLOW">

Disallow indexing of the current page
but allow following links inside the page

Robots

META

Remove snippets 

删除网页摘要

<META NAME="GOOGLEBOT" CONTENT="NOSNIPPET">
Remove snippets 

Robots

META

删除网页快照

<META NAME="ROBOTS" CONTENT="NOARCHIVE"> 
<META NAME="GOOGLEBOT" CONTENT="NOARCHIVE">