Superfeedr Blog

Streaming Percentiles

Last week, we wrote about averages for streams of data. Today, we’re addressing a much more complex issue: medians and more generaly percentiles. It turns out that there are many solutions to this problem, but most of them involve things like windowing, sampling or binning. We’d like to propose a...  

Streaming averages

JSConf.eu is one of the most amazing conferences I ever attended and talked at. If you get a chance, you should get a ticket for this year’s. The presentation I gave there was about streaming algorithms in Javascript and Node. The core assumption is that the web has slowly been...  

Introducing the Feedbox

Our tracking feeds let trackers build applications which track keywords, boolean expressions and more in real time. Want to know any mention of a product name, any mention of a brand, any link to a site in real time? That’s what our trackers are for. One of the most frequent...  

Debugging broken RSS feeds

RSS feeds, like any other type of HTTP web resource have a life of their own and even if they may be behaving as expected at a given point, they are likely to break in the future. As you know, Superfeedr will always notify its subscribers when we encounter a...  

A Google Feed API alternative

The Google Feed API is one of the most popular feed APIs. It lets you download any public Atom, RSS, or Media RSS feed using only Javascript: With the Feed API, you can download any public Atom, RSS, or Media RSS feed using only JavaScript, so you can mash up...  

Subscribe to popular feeds

Our tracking feeds are very powerful: not only they let you subscribe to keywords and boolean expressions, but they also let you subscribe by filtering on meta-data. As you know, each feed processed by superfeedr has a popularity rank, combining several signals. Using this, our tracking feeds can be used...  

Apple, Facebook and RSS

The publishing industry is evolving quite quickly these days and several tech giants have recently showed their love of RSS. Facebook’s Instant Articles There’s no doubt that Facebook is the distribution platform for choice with its 1.44 billion users. Recently, they announced a new product: InstantArticles which are aimed at...  

Feed Popularity

In our effort to provide more meta-data about RSS feeds on the web, today, we’re adding popularity. The popularity of a feed is a good indication of the impact of its stories. When dealing with an information overload it can be interesting to provide hints to your customers about how...  

Combining Feeds

RSS feeds are very powerful when it comes to aggregation and syndication. One of the main advantages of using a single format is that it becomes very simple to aggregate and combine several of them. Let’s say we have identified 3 RSS feeds which we want to combine in a...  

Searching Subscriptions

Last november, we started adding more metadata to the notifications we send: Velocity : the average number of updates a feed yields per day Porn Rank: the likeliness of a feed to be porn Bozo Rank: the likeliness of a feed to be garbage We usually recommend pruning subscriptions using...  

Superfeedr's powerful unified Feed API simplifies how you handle RSS, Atom, or JSON feeds. Whether you publish or consume feeds, we streamline the notification process, saving you time and resources.

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