Launch HN: Zaraz (YC W20) – Use third-party tools without slowing your website

Hi HN! We're Yair and Yo'av of Zaraz ( https://zaraz.com ). We make websites faster by loading their third-party stack in an optimized way. By “third-party” we mean utilities or additional products you add to your website (eg. analytics), not things you build your website with (eg. React). Before we started this we worked on opposite sides of this battle for third-party inclusion: Yair was working for the folks asking to implement just-one-more analytics tool, while Yo'av was a developer trying (and often failing) to push back. Avoiding bloat to begin with would be preferable, but anyone working for even a medium-sized company knows how hard that is - usually when a higher up agrees to try or add a new tool, resistance is futile. Hence the question becomes, can you do it without harming your performance? The average US top 5,000 website loads 22 different third-party tools - analytics, customer success, marketing and whatnot. We wrote a bot that scanned these w