HTTP GET and POST requests – differences and advantages

GET requests:

• the parameters are put in the URL string;
• there is limitations for URL string length (something as 4000 bytes), so huge data cannot be passed this way;
• the generated page is suitable for search engine optimization;
• not recommended for sending password (and other sensitive data), because it could be seen in the URL and will exists in browser history;
• sending files in GET requests is not possible;

POST requests:

• huge data could be passed this way;
• suitable for sending passwords;
• POST requests are never cached;
• cannot be bookmarked;