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Does anyone have insights on how to refine this to only monitor specific elements of the page rather than the entire page?

I may not care if they change a template but would care if they change a price or a warrant canary etc?

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I suspect you'd want to search for a specific attribute or tag combination, I used the scrape package [0] recently and found it a pleasure to use. Beyond the example provided in the README the documentation [1] is also good.

[0] https://github.com/yhat/scrape

[1] https://godoc.org/github.com/yhat/scrape

You could use an XPath or similar to extract the part of the HTML you care about.

Similarly with a library like Beautiful Soup you can traverse the HTML a lot like a jQuery selector.

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