but it's Google webmaster ask me to add my site in and ask me to add meta tag to the home page of your site.so Google can verify if i am owner of this site, maybe i can delete it after Google add my site to webmaster,do you think webmaster is useful?
Well, now I understand that. Google's "Webmaster Tool" requires website verification. Yes, you must insert that special Meta tag into the hopepage page. But, you should insert it into the file index.php in the current template folder, not the one in Joomla root folder.
There are some 3rd party extensions can help to do this job without modifying any php file. For example:
Yes, I recommend to use Google Webmaster Tool to improve your SEO.
The best way to speed up the index process is submit your "sitemap" to Google. You can find this option in your Webmaster Tool account pages.
The most popular sitemap extension for Joomla is
. You install Xmap, config it, then copy the sitemap (XML format) link and submit this link to Google. This sitemap will help Google bot to crwal your website.
EasyCalcCheck Plus - Warning: The form was not found, because the template uses overrides. Please adjust the search string for the form in the file easycalccheckplus.php or delete the overrides in templates/yourtemplate/html!