How can I know my credit rating and improve it?

How can I know my credit rating and improve it? | The star ","heading":"","fullWindow":false,"fullBleed":false,"showFullBleedOnMobile":false,"headColor":"","type":"html5mobile","textColor":""," mobileImageUrl":"","bgColor":"","imageUrl":"","registeredOnly":false,"linkUrl":"","aodaTitle":"How does your credit score rate?","internalScroll"...