What are TXT records commonly used for?

Related questions

1. Do I need reverse DNS?
2. Why PTR record is created in DNS?
3. How does reverse DNS work?
4. Does DNS flush on reboot?
5. What is a PTR record in DNS?
6. Why is the DNS server not responding?
7. What do DNS records do?
8. What is DNS update?
9. Can I have multiple TXT records?
10. What is DNS AAAA record?

Tags

1. #ensure
2. #information
3. #records
4. #verify
5. #email
6. #google
7. #outside
8. #contains
9. #ownership
10. #settings
11. #domain
12. #purposes
13. #security
14. #these
15. #various
16. #sources
17. #record
18. #system