magento allows changing the default title of your website. the following steps describe how to change the title of magento store.
step 1 − login to your magento admin panel.
step 2 − go to the system menu, click on the configuration option and select the design option under the general section.
step 3 − expand the html head panel and you can edit the title in default title field. after done with the settings, click on the save config button.