I have my own website... this website age is 4 month.... now i change the meta tag because of some reason... but i don't know how to inform the google webmaster and google analytics that i change the meta tag.... it is important to inform the google or it update automatically in search engine... i know my site is down but it is important to me... plse suggest me about this issue...
Submit your web page links to social bookmarking sites. You can create XML sitemap and submit it into the webmaster tool to tell about the updated web page's link.
try to ping your site, Google need to revisit your site to get updated also try to submit your sitemap to Google for fast indexing.