Nadav Ami

Purge Common Public DNS Caches

Like many today, I woke up to reading about Facebook’s major DNS outage. While I’m looking forward to hopefully reading the outage’s postmortem, in reading the comments I learned that you can actually “ask” many public DNS providers to flush the cache for one of their entires. This is super useful if you change a DNS entry and want the change to be seen by your users quicker.

So for future me, here’s a list of all the common DNS provider cache flush pages you could find.

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