Specifying URL information
Each URL now needs its priority and frequency set if required. Both the priority and frequency settings are optional and can be skipped.
The priority value reflects the value of a particular URL relative to other URLs on your site. Valid values range from 0.0 to 1.0. This value has no effect on your pages compared to pages on other sites, and only lets the search engines know which of your pages you deem most important so they can order the crawl of your pages in the way you would most like. The default priority of a page is 0.5.
Please note that the priority you assign to a page has no influence on the position of your URLs in a search engine's result pages. Search engines use this information when selecting between URLs on the same site, so you can use this tag to increase the likelihood that your more important pages are present in a search index.
Also, please note that assigning a high priority to all of the URLs on your site will not help you. Since the priority is relative, it is only used to select between URLs on your site; the priority of your pages will not be compared to the priority of pages on other sites.
The frequency value is the frequency of likely page changes. This value provides general information to search engines and may not correlate exactly to how often they crawl the page. Valid values are:
The value "always" should be used to describe documents that change each time they are accessed. The value "never" should be used to describe archived URLs.
Please note that the value of this tag is considered a hint and not a command. Even though search engine crawlers consider this information when making decisions, they may crawl pages marked "hourly" less frequently than that, and they may crawl pages marked "yearly" more frequently than that. It is also likely that crawlers will periodically crawl pages marked "never" so that they can handle unexpected changes to those pages.
To set the priority and frequency for an individual URL, right click the URL and select the Properties button.
To set the priority and frequency for multiple URLs, highlight the URLs, right click and select the desired priority from the popup menu.
The selected priority and frequency will be displayed next to the URL.