By Keegan Kelly Published: December 16th, 2025
Category: Posts
15 Ways the Recording of ‘Do They Know It’s Christmas?’ Was a Complete Mess
By Amanda Mannen Published: December 16th, 2025
French Christmas Cookies (Sablés) Recipe
Buy Clotilde’s latest book, The French Market Cookbook! Biscuits de Noël Laurence is one of my best and oldest friends. I met her when I was fourteen, on our first day of high school, and soon we were inseparable, so
Stuffed Lumaconi with Butternut Squash and Chestnuts Recipe
Buy Clotilde’s latest book, The French Market Cookbook! I will own up to it right then and there: I am an inveterate collector of pasta. Guilty as charged. In fine food shops and Italian markets, I love to study the
Vegetarian Batch-Cooking for Winter: 1 1/2-Hour Prep, 6 Easy Meals !
Buy Clotilde’s latest book, The French Market Cookbook! In addition to planning my menus, I have been doing more and more batch cooking these past few months. The idea of batch cooking is to block out time one day of
Reducing experiment duration with predicted control variates
In 2021, we published a blog post titled “Increasing experimentation accuracy and speed by using control variates,” describing how we reduce the variance of metrics using CUPED in our experimentation platform. This is a follow-up on how CUPED has evolved
Improving performance by prefetching product pages from Etsy Search
Rarely are there opportunities for big, bold, game-changing improvements in web performance. The Speculation Rules API (SRA) is a recent browser development that offers just such an opportunity. This post details a joint effort between the search and the web
Understanding Etsy’s Vast Inventory with LLMs
For more than 20 years, Etsy has been the destination for human creativity online. Our marketplace is home to more than 100 million special items made, handpicked and designed by more than 5 million sellers. These items and the real
Unlocking Faster Insights with Experimenter-Defined Segmentations
Imagine you have a fabulous idea to drive more sales on Etsy by giving out free ice cream with every purchase. How would you know if it will actually work? One way to test this out is to run an
Building Etsy Buyer Profiles with LLMs
Every day, shoppers from Etsy’s community of nearly 90M buyers visit our marketplace to search for unique, handmade, and vintage items. But with over 100 million listings, how do we help each buyer find exactly what they’re looking for? Traditional