1. If I update the values of any of my web pages’ meta tags — especially the 'keywords' meta tag — will the web spider update the database of keywords?
Yes — each time the web spider crawls your site, it will update the meta tags of every page.
2. What happens when I update my site’s robots.txt file and add more restrictions than before?
The next time the web spider crawls your site, it will automatically flag the pages in the database as 'non-recommendable'.
3. Why doesn’t any recommendable page appear when I’m using a custom meta tag in my recommendation filter rules?
The newly added custom meta tags will not be recorded in the database until after the next time the web spider crawls your site.