How does DNS TXT record work?

Related questions

1. What is DNS SRV lookup?
2. Can you have two A records?
3. What is a PTR record in DNS?
4. What is an A record in DNS?
5. How long can a TXT record be?
6. What should my PTR record be?
7. How long do DNS TXT records take to propagate?
8. What do DNS records do?
9. Why PTR record is created in DNS?
10. Why is the DNS server not responding?

Tags

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