DNS confusion with domain and website
Im troubleshooting an issue with a fellow consultant. Company A has the domain of companya.com. They can access any website except www|d0t|companya|d0t|com which is externally hosted. When we add a www host record of the public ip of www|d0t|companya|d0t|com to the internal authoritative dns server, they are able to browse the website. I know for sure the host record isnt necessary. There arent any internel iis servers that would be causing some sort of internal redirection. Thoughts on why the host record is needed to browse that website?