Another website is hckrnews.com, which is an aggregate of all HN posts by time. It’s really useful if you want to capture all items, as it has a feature that shows you where left off
I browse HN via RSS aggregator; so I catch all the articles, the thing is designed for keeping track of what you've read, integrates with daily reading flow along with all the other RSS feeds. Bonus points, my RSS aggregator of choice has a nice mobile reading experience too so my browsing experience tracks seamlessly across my various platforms.