Every visa refusal is for a reason written in the rules. Choose a country. You will see what the officer checks, in the words of the rules, and how your application looks right now.
Standard Visitor Visa
A visa officer decides, using the UK rules for visitors (Appendix V). They check that you will go home, why you are going, your money, where you will stay and more.
6 reasons for refusal listed
B-1/B-2 Visitor Visa
A consular officer decides, under US law (INA §214(b)). The law starts by assuming you want to stay in the US. You have to show that you will go home.
2 reasons for refusal listed
Temporary Resident Visa
A visa officer decides, under Canadian law (IRPA s.11 and IRPR r.179). The main questions are: will you leave at the end of your visit, and do you have enough money?
7 reasons for refusal listed
Short-stay Visa (Type C)
An officer at the consulate decides, under the EU Visa Code. They check why you are going, your money, your travel insurance, that you will go home, and the other entry rules.
9 reasons for refusal listed
Short stay C visit visa
A visa officer decides, using Ireland’s published list of documents. Most refusals are about money, reasons to go home, or documents that are not in the right form.
6 reasons for refusal listed
Student visas for the UK, Ireland, Canada and the US have their own rules. For example, the UK asks for a CAS from your school and proof you have held your money for 28 days, and the US asks for an I-20. Check a study visa application.
A UK visa officer checks your application against the rules for visitors. This page shows you what they check, in the words of the rules. You can see where your application is weak before you pay the visa fee.
Check UK application