<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><p style="box-sizing: border-box; margin-bottom: 16px; color: rgb(36, 41, 46); font-family: -apple-system, system-ui, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); margin-top: 0px !important;" class="">Responding to feedback from our user community, CAIDA has released version 2.1 of the AS Rank API. This update helps to reduce some of the complexity of the full-featured GraphQL interface through a simplified RESTful API.</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(36, 41, 46); font-family: -apple-system, system-ui, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class="">AS Rank API version 2.1 adds support for historical queries as well as support for AS Customer Cones, defined as the set of ASes an AS can reach using customer links. You can learn more about AS relationships, customer cones, and how CAIDA sources the data at <a href="https://asrank.caida.org/about" rel="nofollow" style="box-sizing: border-box; background-color: initial; color: rgb(3, 102, 214); text-decoration: none;" class="">https://asrank.caida.org/about</a>.</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(36, 41, 46); font-family: -apple-system, system-ui, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class="">You can find the documentation for AS Rank API version 2.1 here <a href="https://api.asrank.caida.org/v2/restful/docs" rel="nofollow" style="box-sizing: border-box; background-color: initial; color: rgb(3, 102, 214); text-decoration: none;" class="">https://api.asrank.caida.org/v2/restful/docs</a>.</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(36, 41, 46); font-family: -apple-system, system-ui, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class="">You can find documentation detailing how to make use of historical data and customer cones here <a href="https://api.asrank.caida.org/v2/docs" rel="nofollow" style="box-sizing: border-box; background-color: initial; color: rgb(3, 102, 214); text-decoration: none;" class="">https://api.asrank.caida.org/v2/docs</a>.</p><div style="box-sizing: border-box; margin-top: 0px; color: rgb(36, 41, 46); font-family: -apple-system, system-ui, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); margin-bottom: 0px !important;" class="">CAIDA Team</div></body></html>