How many types of HTTP errors are there?

Related questions

1. How do I find 404 errors on my website?
2. How does HTTP transfer data?
3. What is a 303 redirect?
4. What is the purpose of HTTP?
5. What is HTTP header example?
6. How do I get a 401 error?
7. What does 301 mean spiritually?
8. What is HTTP PUT method?
9. What is status code 301?
10. WHAT IS HEAD HTTP method?

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1. #number
2. #categories
3. #three
4. #codes
5. #request
6. #error
7. #result
8. #success
9. #numbers
10. #response
11. #divided
12. #digit
13. #types
14. #indicating
15. #server
16. #included
17. #informational
18. #these
19. #status