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Monitor your entire website, not just the homepage. - Oh Dear!
ohdear.appComplete website monitoring: from multiple locations, broken links & mixed content detection & advanced ssl certificate reporting.
updown.io – Website monitoring, simple and inexpensive
updown.ioupdown is an online service that checks your website's status by periodically sending an HTTP request to the URL of your choice. It then notifies you by email or sms when your website is not responding correctly.