In Magento if you are getting the url as http://website.com/index.php/electronics/cell-phones.html and you want that index.php is not written on the url i.e. http://website.com/electronics/cell-phones.html.
Then use the following steps:
1) Login to admin section by using the URL
2) Then go to “System >> Configuration >>Web >> Search Engines Optimization”
Use Web Server Rewrites : YES
3) Go to “System >> Configuration >>Web >>Secure”
Use secure URL Frontend: YES