Why do we use GTM?

Related questions

1. What is the utility of layered architecture?
2. How do you use Google tags?
3. Is Google Tag Manager the same as Google Analytics?
4. What is Dom content?
5. What is a container in GTM?
6. What are the layers?
7. What is a variable in GTM?
8. What are triggers How do you use them?
9. What is Dom content load?
10. What is Google Tag Manager and its benefits?

Tags

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2. #google
3. #biggest
4. #easier
5. #benefit
6. #their
7. #source
8. #helps
9. #implement
10. #makes
11. #developers
12. #manager
13. #quickly
14. #since
15. #having
16. #changes
17. #without
18. #marketers
19. #touching