Updating flash text with xml
And these two tags are an excellent way to do this.
How strictly they want to follow the Priority and Changefreq sitemap specifications is up to the search engines; these XML tags are considered preferences, not orders.
Tell the SWFObject script to write the Flash content to the page (if the correct version of the plug-in is installed on the user’s system) by replacing the content inside the specified HTML element.
SWFObject works quietly in the background of your HTML document.
If your website has an XML sitemap (and it should for indexing purposes according to our 2014 SEO Best Practice Audit Elements ), Changefreq and Priority are two important sitemap tags for supplying data to the search engines.
It is set to a number ranging from zero to one; if no number is assigned, a page’s priority is usually set to 0.5, however, this may vary depending on your exact site and plugin.
One of the biggest things Google seems to care about is ensuring that they are able to easily see when / how often content is updated, and that you are consistent in how you tell them that. For our purposes, we still feel that Changefreq & Sitemap.