HannahP
Well-known member
a LOT of ISP's have their DNS cached and don't feel like updating it for a day or so.
There seems to be a bit of confusion about how DNS caching works. Even an ISP that maintains a DNS cache for a day or a week or a month updates it much more frequently.it took almost 2 weeks to propagate through everyones work place, especially in parts of Europe.
It is extremely rare to find a DNS server for an ISP that updates less frequently than hourly (I would say it never happens, but then some smart arse who works at the only ISP in Krysblechistan - still running a wall of dozens of 28.8 modems - would chime in to prove me wrong). So they may keep the cache for days, but if your SOA says to update your record every five minutes, it will update every time the ISP updates.
I have been toiling in the horrible sweatshops of the web hosting business for 16 years (under such unbearable conditions as mountains of free food and drink, the ability to show up for work in your underwear if that's how you roll, and big semi-annual bonuses and profit sharing), and yes, DNS cache used to be the bane of our existence. But those days are long gone, and if you aren't afraid to get your hands dirty and dig into your own DNS records a little bit, you can control how the world treats your domains, and not be at the mercy of the long cache.
Free yourselves, brothers and sisters! Rise up from under the shackles of the man!