Therefore, I do not expect aggregators to check my blog every hour, or every half an hour.
To the NewzCrawler RSS aggregator which was checking my blog every half an hour, I've blocked your IP from accessing my blog, using IPSec.
And the NewzCrawler RSS aggregator which is still checking my blog every hour, I will be forced to do so soon, if you do not scale back your checks.
Why am I so uptight about this? The reason is because I'm personally hosting my own blog on my own premises, and I want to ensure maximum availability of this blog to everyone else. Other than that, I'm also using the same server to host a few other websites.
Please reduce the automated polling to every 12 or 24 hours. Users who sometimes poll manually can still continue their practices of polling on their whims! ;o)
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes