HTML monitor - real time check

◆Features of this app・When your favorite site has been changed, will have announced soon.When you register a site, check the site at the specified timing.And if it is changed from the last time, will inform the change in the status bar.So, you are able to check the site immediately.・In order to monitor almost in real time, it helps to check booking site of congestion period.For example, You can also be used in the room reservation site.Because I think that there is a timing that you can take advantage of variety, try using