I have been working on RentalCal, a calendar sync tool for vacation rentals, and just released a small free tool from it. Basically, you paste an iCal URL and it checks whether the feed is working, shows the blocked dates, and points out common problems like broken links or invalid calendar data. I originally built the checker to help troubleshoot calendar sync issues, but figured it might be useful as a standalone tool too. No signup required, and there’s a sample calendar if you want to try it without using your own link. https://www.rentalcal.com/tools/ical-checker Would love some feedback, especially if you work with iCal feeds.   submitted by   /u/rainyCoins [link]   [comments]