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There's about 360 million domains (according to Verisign as of March 31, includes inactive sites as well) and if Cloudflare manages about 1/3 to 1/2 of them, that's like 180 million domains at most.

700 changes per second is 1.8 billion changes per month. I guess 10 changes per top level domain per month is quite low, which suggests a very long tail distribution, which makes sense, given that most websites are just a static page a business sets up once, with DNS changes maybe once every few years.

by mvkel4 hours ago|

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412M domains registered worldwide

700 changes per second implies 15% of all domains are changing daily, which is almost certainly not the case.

by 22 minutes ago|

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by enedil4 hours ago|

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It's well possible that some people update DNS records for their own domain every minute.

by zoeysmithe4 hours ago|

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I can see 15% changing daily. There's all sorts of stuff being done with dkim and other anti-spam technologies that require a txt or cname or whatever change in DNS. Companies are always whitelisting vendors and mass mailers to send as them, validating domain ownership, adding new sub-domains, changing things for Exchange/365/Google/AI stuff, changing things due to a security audit, etc.

I imagine a renewal is a change event to, at least change the expiry, and renewals are constantly happening.

by toast03 hours ago|

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> I imagine a renewal is a change event to, at least change the expiry, and renewals are constantly happening.

A domain renewal is an update at the registry, but there's no update in DNS at any level. If a domain expires, it would be removed (or at least changed) in the TLD DNS, but the authoritative DNS for the domain wouldn't necessarily update... it would just become orphaned.

by LoganDark3 hours ago|

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It's probably more like most domains barely change at all but some of them change a lot.