for Atom and RSS and KML
It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "blog-811949818170.mit-edu.top",cType: 'managed',cRay: '90fb2537aae1c5b7',cH: 'C8pHq5UINho7vG19wrdsa_3m9CXqFvdj8ZWKg2PeJJA-1739180506-1.2.1.1-66oHDL24zxK8bkosqEgLv8GmkVkUXvfwszxtcRtNr6BwE2lxonxB.SWQHPRn2705',cUPMDTk: "\/post\/1605238479?__cf_chl_tk=vBGqhpxY3iwxWix764OK5.73KDUoLxctJhDk7ImpNaY-1739180506-1.0.1.1-3u_MoLwfa2q2wBbj6vbX3IAyOToMjpXbKT4OoHPlCK0",cFPWv: 'g',cITimeS: '1739180506',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1605238479?__cf_chl_f_tk=vBGqhpxY3iwxWix764OK5.73KDUoLxctJhDk7ImpNaY-1739180506-1.0.1.1-3u_MoLwfa2q2wBbj6vbX3IAyOToMjpXbKT4OoHPlCK0",md: "HBh4fgfJmhBgXJaFAIZ5vVUeY67WCt5o7XPj2N84eHI-1739180506-1.2.1.1-EVImkbPf5hykNvGeEthNMS9nHfGYXJXCLFpHdx_wcpK.bu8j6ytv6.GSx6bJ0PhEAoOlrkLDi4K0b1vUhsSx8EUxGT1GmgatO5hlb2m2fLSzMD7ztA0QLAidiwypQF3XpvWoiDisFsSgCZIANseqEwj.CuzJn6urtwD9e0QgQEWxRswcyjMkazd92xbbTwM9IIgUFFkQXdGRElU45AbNgcyeAhCnvA3wlJcACeD8b6RqbbqnKI1PlWgUp7Rg8cvU4_BTsr9vFn.PoGd1GjY2PBkcw4XqrfNRaBnOfPgbNYamUlpmWSGRJ0vweJI.tlwB2W1KC4NYf8DPnbIGt9kja_h1r7YHRnvRLmz71GBZjLNEh34a39XXWfbtbJyISSKSeEMe9gYPNbBBmwEt2l_zNnd_ooIoWnDgYRjbF6D0mwF.r_sh1.BMU3U5m_bEa9PtG8kFS6bnx7LKPSiPxHv5hBLWnC0pd9bi53npxmu7InRhuh1tBg0WpAwL8EXanqDH7Edpm7s1Qv3BF1nJ2VwNhhAGNgHSxum0CP8ZGevyjhkuGaq2UBA3mFTO..HHI5s0QE_lZlxgcEt0ayAZYu49I2usuyyuJkhof3PdJVxHnTSPYuUQWpMBZlt7dMdVxSQz4xsQR1MVAkCNqxvsUiR53QWzEKObA6IHZJsb3Xgqt5HnE2mOFWTzFKBLojLDHP4RwOnw8U2d9ARyIvcZsONEEgUS03gk2izdFhWFKreNcEQ1Z9oa6Rs6X1qYHHHO0EFDd67pfrclEjYweuD3VH4WAcACkKbarnZUIi4n4ZYGl27Nm0vs4L51n9jhRzbzuwTVFpk2.60vAORytIfXQbBZScLqhOKeJCFxMXY7FqDkOSwb1yBz2kJMR4JnOaKhu.mIc5rqtaEnGtJjYZrei7DwN.Db1BBhtDsvPBO6x71BXGYopjdFlSujo8IHFD3NLDQAVxdVYRKb6ZV.8_RotTGAvU0126.WlpjVM8yreh.NAejwjv0OBMCys7CP1fUBlFIlYtDMQYCmsz8Q9oLAG0hRHq7vPskhgpW6HkPG9zfFqdO1LdjRPAanBGYuEaMoWdS2BMbAUa0tQnfteaqdPR2YGEcIT6W.pLG0NMYqqf2hu0u_RjsZxmEDVFM4qxFrF06lEbpNL7IJpM8xjjAZNnI6BWV2gx3haJGi13jVuIh0QQ9ztbJmtVKTiwuBWD8GOtSaPixqY3LfspxoLaZJcbw2EvwqWOSU7Mk3u9VvwW9lKpIrGEYoylDJbWETUsPrZFv1XTbA_T3MBUdRGxN6.8sJf3uc6c6yfoycsALEWe74GnC7ymC5sGl5FQLlZq0Xaj0R6heyy1mtwyuAWe7hcQ.qf9_LzP.tJbsBlq9kGNwA9ahNjany77HkUeaaqfzxT3b_IrLOKAJV36ib9Nh116TqSNXofxJqYNgYAKYzoeV72MV3P1fqMvVOpvwoENS31daqEx8Z3Ouizln6nqnyrbtoBuLPpKEosnfmlQX5E0r1hC_nVdKFg0h5uEDcIE0sCneRrZaWRAqslPO19dvavpKyYRM4z.QQuN.fV_84VbUuMcMRDFBj3zC0roUnRg9dUTy6kgv8ieKPG9dibammZTX0oW_68W5_UVmsIC05aWN61UfE8zCIJR5_m5Az2akpfxXd3UrOZGjTrjUwBF8tXUNq_msejLS_bommSb5JwM5SEZD2gsArGqVHdsr.9UKvOy_bqmnMMsz1Vi34VLGInAEKimNcKEoeYCip_MO5qB955tF6QlkB5L0p6q8GHyOTjsTdU9aLAgvRpSETRoLZat02NNMNjAmduxfs2MyTr_BuibJvgrHEMvClGRVtpktRkfnlblf8rCwk_XZosFd18vpSyMFOMflw5nn_E597oVgJdyxaowlkf4bj8qQsbPytSLqOEBfIJdemFXljP_67y0.Ssk.aXeUezsOp7RHuql.lZgF9bcstoDLDXmU.0uVSxXzu0uRID5bobiHtj9_0GNO77VbiDVOBwU12YFyQ3EaKIKj7X6x5RUziESgOlN0WSAXR7.xtyFLB0Rwiwta211n_cEpX6c9ZNrmqzHrrxhSGU_APvuGpX.gwuD3uUU8cjHMYJ1e42YGTvaQtkoKu31zhst3RbTJ1vFLx4sXWFXE3jifoYqN5upzg5wyey_Ju6QnCpPCTmBwaonY4q5NEsxlet36P3dxYyJ6g1plKH.9KoXgRJ4vb.dfYfDqXgA6QZXy0",mdrd: "g6SYbnBiGDnGWXVJ9FK.M.voXpDuKZtlx3urws2DVWc-1739180506-1.2.1.1-WQhAxINAW4uzWmAfWatxcjGFJNE48lk7rOaG8ieNvGgGZlw41Nr6GIHgUxCwFQxF8R6_7gIDuXBTK8ERUJZNkSHe4w.QMyMejGheQSfmCb1ycyCqrYddtesK6IZW5bDfshja7o5TnCOZ5Xcrcgs66UJ34fNHyHqUWC6Hz9j_qWaaHlvVFm2_HatagdyAn5VuGx8V9vb90nFCfIQeasdP8bOtOLuXm38Bo5tUm.u_tqDGLNFHAjOXQTqU2223fGWu8B9BvMNZYYYbnNqmu.Ugt3pSOmhnwoXyMyosK4Bg.1mqylu23ccOXcU0.n66nvNG6xnGeI5DBU4igmojNd_qt.6B5zUsmqJ8gOrwxtyA.MhfGb2Swq_ILthwoxUecsAk7zOCuxh4Lc0FBJrx.H.St2eBiFH7VkL_SoYK0mubVKCxv3bnYeiPwzdqyO0XbYe.MBQ4l21sxGTN117zZ_fdXoMRHnvRd7irn3f4J5QXvGRVLfhH_vJ9GTtzHkZZLemohxmYouoKz5TXy3UZVHeN8b66s0O.L9EGS4uhxLd0TBEJn2Ud74JWf8nh1wjA4hgLUZtSKACCvAGrwthGqSJ5Fpc6m8otGAIeuND0pSg2KCsJSuKE8Rb6ylSFr50tawUFqLcYPAhwSqVs4cZBwHbKDJeKOec.0vqdZeuH9ntHscPodeD9T8W0Y3bnr7hpQhRnH9c_8jAXxOsSzHK897AG_WhKTX2.so2G3Un6JWUmIOdwiqt5iB9rSoHjWuxKM5ftIoBmqNmx6ls6vlZkDozsk3pOQAEJQOyykmWBj4ZF4ksb4iGFpSXPBvk1AGDuhA8dWM2PE9wMFNhoy1T8Lraoe1NR.A89ArvDEHEdvhqBixW.jCvD6IjaDpn4IVOhVBnay1UIiW_34xfy_.Np3xoiCOtIrTr4Y02dh86jjLLCgK2_7ppX0eqS5QWGuJ9YeNzPVQ92qq15em1I3hI_E_goneGjd7pNUbp4xaSYSQcqBMX3jdSciagUrKyifH7xdpxRX6ztkrE_IuXNvNX0QF4FEGMTKPM59nRzBVE23vnomFmP78P3_7FQMbjjYZoNl5Ebw.jOITYJdX3LeDMvAK1jkRHV9obOPnqeCGJyeLHbxDk.s8IMaK0YpqVWqyI3ZNTBrQtAXt_KkTCsDiJ29EZ8N1yZKq_DBBf14U1_AkuamYLxWg_9w0T54KCfrFqhmwHT_rpUusvWAd_78hmHfu2.BLoYFLjlxualXDIW3qeFZ4bG1eipyeaCjPhOM3HWsExvk0E9QBXp_S3TNQENLlF_9bb8ygypU2EyidDLfhTD6Ma9Dr0WecgjfUrnfdxZ9IJpui4wVZMtQuEycSZln_X8bCk2e2YaBz1e6TRcT6hGjGuR9r49twClChbALYztEmpSneSkU5UHgOoxkMoRyvXsTNzfQqyGDXFBRSpxI7EryPBEdtKR6EtMO5gZ4xldfaasVAbh4IV24qXNrHYSBfgMwytqf949JgDnwLfyiQ0FzvFA36kitsDuR8H6iUOTmlJhj2jeBOwwbi7oeDkBV7KkJrR9UnUwfM1udeuxhBrycZILMwaXEKdPuT0AFBo8JRBAZtZNMN_PJTw4nmCHzOzEy5eW6EzXPJwH74n6DDreY8NcgkTa.5Olb2Zgwm9NlPvexWkPK0Ot7YHTK.Dv.JkJ1a.LHOnPqpWoP7QyKr2_uV1Fh_yF.ZBmHC1oiahC_pLrqSgO20cxRl4GdZlAIZiWmPvckjRl4BsHbrlP7tNwBQwtqUMcSwJaxnPAPhmjomA2uQg1n10vncE0.NGarxeSAQegaxEa4g5TLVNqGpnqSHU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb2537aae1c5b7';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/post\/1605238479?__cf_chl_rt_tk=vBGqhpxY3iwxWix764OK5.73KDUoLxctJhDk7ImpNaY-1739180506-1.0.1.1-3u_MoLwfa2q2wBbj6vbX3IAyOToMjpXbKT4OoHPlCK0" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms