Writing
The plumbing nobody writes about
Measurement methodology, feed edge cases, and what we learned hosting 41,200 shows.
Range requests are eating your download numbers
Why one listener can look like six, and how the IAB deduplication window actually works.
The GUID migration that generated 40 TB of nothing
A cautionary tale about changing episode identifiers, and the redirect chain that saves you.
What a podcast CDN actually caches
Podcast traffic is nothing like web traffic: huge objects, long tails and a Monday morning spike.
Frequency capping without cookies
How to avoid playing the same advert eleven times when you cannot identify the listener.
Chapter detection that does not embarrass you
Automatic chapters are usually wrong. Here is the pipeline that got ours to 84% acceptance.
Why we publish our bot filter list
Transparency costs us a little in headline numbers and buys a lot in advertiser trust.