Hey Jim, Did you get a chance to look at the FedCM spec and PR (linked in the prior mail)? That document includes all the details about the use cases and requirements. If you need more details from me, I would need you to tell me which details you need. I've already written down all the details I could think of.
Thanks, Will ________________________________ From: Jim Reid <[email protected]> Sent: Tuesday, April 7, 2026 8:51 AM To: Will Bartlett <[email protected]> Cc: [email protected] <[email protected]> Subject: [EXTERNAL] Re: [DNSOP] Advice sought: DNS record type for FedCM well-known file delegation [You don't often get email from [email protected]. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] IMO, it's difficult to give meaningful answers to the questions you asked based on the info you provided. Apart of course from don't use TXT records. It's not clear to me if a (tweaked?) SVCB record or a new RRType would be appropriate. More details about use cases and requirements would be helpful. Could you write these up an ID for consideration by the WG or the DNS Directorate? Whatever the two WGs eventually converge on as the answer will probably need to be documented somewhere/somehow. Might as well start that process now...
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