• frebibA
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    4 months ago

    their CDN is not a time service

    No but time.cloudflare.com is. If I recall correctly, the server clocks are synchronised with the same time service. (Source: I work at Cloudflare)

    • robalex@programming.devOP
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      4 months ago

      Cool, thanks for taking a look! Do you know of any official reference for how the Cloudflare CDN server clocks are synced? I looked around but didn’t find one.

      I originally built the clock on Fastly, but they (appear to) have clock offsets of hundreds of milliseconds, so I didn’t release that version. Cloudflare CDN seems synchronized better than what I can measure, although I’m wary of hard to test corner cases, like newly deployed servers.