Site Status Checker (SSC) allows you to have Chrome worry about checking if a website is available again with a valid status code.
Simply click SSC in the toolbar when you're on a site that's not behaving, specify the status code that is happening (ex. 404, 803, etc.), specify a poll interval in seconds (default to 300 seconds or 5 minutes), and click "Start Polling".
Once the website is no longer giving that status code, it will notify you with a simple notification, clicking it will bring you back to the previously misbehaving website.
Note: The minimum poll interval is 5 seconds. This is to try to keep the interval down to a human like level, as SSC does not want to be used for any form of illegal or mischievous activities.
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!