URL：https://res.cloudinary.com/hy4kyit2a/f_auto,fl_lossy,q_70/learn/modules/domain-name-system-security/get-to-know-dns-technology/images/5443b769747c6db380f7907fe506463f_298-ddea-8-c-77-d-4-de-1-9-d-80-f-0-df-25-cd-096-b.png
掲載元：https://trailhead.salesforce.com/pt-BR/content/learn/modules/domain-name-system-security/get-to-know-dns-technology
