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-649473763924.mit-edu.top",cType: 'managed',cRay: '90f80a059964d6d0',cH: 'oCsIlSHYe0NljpEMPnO6K1eO4njDveWAdTLamsrA1EM-1739147935-1.2.1.1-vgBeX2NY9Faa9gfBix8BWvydFY6OFaIiNHe_ZkemPZgQsDOzxO8Lt5zY8WTAPkqs',cUPMDTk: "\/post\/4935760128?__cf_chl_tk=btqjp5UefzzwQuNdAThMTT.OZqkuP2XiY2ui4UF9DOs-1739147935-1.0.1.1-nkJRuC.ivsKTJCizhK5PvYbvoOLytA9ruE3fD8Us25Q",cFPWv: 'g',cITimeS: '1739147935',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4935760128?__cf_chl_f_tk=btqjp5UefzzwQuNdAThMTT.OZqkuP2XiY2ui4UF9DOs-1739147935-1.0.1.1-nkJRuC.ivsKTJCizhK5PvYbvoOLytA9ruE3fD8Us25Q",md: "Cb1OzNtt.FNIbAmFl5tFwh4w7UzTwthQz0XIPJceb90-1739147935-1.2.1.1-TtFo4HN227GRGg6wcU6pdk.wTN3mChLYsmWRVvLRcRRuh7eYi.TEpegdmqaO_QY7yigpiQMF1XEdgII0dyjF.TfDMb9QZ1XatdijCxaao3snN25t5QhPsReJ7E6vnESs9JtV7zsPik9dsHTuvpP3aiUjQYXai83aiOjidVLJqQ9qnmh3_ZRiYTojrA1UQyQvcy_yGZt3qrDeXcinYlg7_Hi4FaQUXIQ8XVa5YtI17dZoi1ADN0P9x0hgj5BetIxjVFLl0SfdbTaSLrZBNKafIWoGvpdudUDhMUVhtp6kZMlNgVOGclzfAiNBVUTryOQmcKwzbl8Y9Oea_sQR.AOqJYy5hl5K6xjH1rZz5gzMy176UEeZmhQjJn7QzG.BNhznyU_dhHt76gQ807oPLrx3WF26rte2Ocw_1GFLBX9gRAYO64yT6MucfOENuEI7Td9CBfhcseGr3P7JMKi9OBLIjJN0K.TNuNjZ.aT_OQjl79v8fkwfUCPkA1FlaVAGrsVmdwYpcwoC11Hkkl1ccDK8z6yCV8g4_2uYFprFlzvELC3vRGavOYMMN.iwzPILtvkrddo.ynupOa45jq0wS7rQKdLsfCaoP6bdbztq2XDKlLkaGThP4rChtA8V6y2bQ4c.Ap2OYGKm0RqmvxuVtgKH4NY1jObSKHy5DvZ7kK28u.oTSlEEn25no673SFQExXYWAD6DAmiQsbfbTIxWBEdjhG._Nc8BoAE6nrFVhpWSYaJ2B0ssFZrAop2c4m2UDx3_piXkxs5XnOQt7V2RsBgPhA4zD9VEUudhhcwtNATel6LVXevmQdFj1Q6pe0jNLAQZndMlSw_WUQ9aAp6HBchi5LyXJKugJ1dMPDxbZEkJeV7my5r7NeCAp7XA1zp.TB9ItpfjsunRebxZVnpe0A6bV3Olv_iQ0T7x_ca_xXSuMBoTZyLYdXgzfv.HDNxmJsjyGn33LHUjE6oE4aZFl_0yim9HgGDFNi1fFPqLu2.FtUj8nDjzWk66I8Yveo4dQT.5e1Hu5ijm9zsCngouVDVrH3mDoev6Tr6D.NEb6Cq0KXo4C9qWJd8e2ge159Ly4pe_N.pzm8DfcRc50f30vSalkMnpCaCTezOlNEUOF13sVcM.QdSjdOSXyXZxEA3kvKQBhHMmDsQK.tbv_1ekPMBb4pOXqjOSXYdz.ZnGDF2zFbLS9oWEZi1wowI9BIyjuc_Xo3uavKY2PL8fGaz1DD2uuNZvF4l5WpuG8iZbPr1c1qkECip4Oy3UZlsOWIGb_ktDttGbz0V1PvJaXDmDsPAWXbNsES7ofrsUNl2GlUR3ZJH6R_rKww6nTnTKxJaNqjTDtn7phkzL_nyqlBtlQET5WBm4W2pppTtsRm9Gd4AXCLxVuxOi2qAmxzjSJoTbqAcv1x_rf26tMcGLkQsMAIR8rKXV3d9wDbwOWmd6siOlcvhELUpb87oVf853mSolgqkWD9ysRSAPT4LDVCMlmRVzM1tLYEK5ts9i.vn1N73v0oPEueefzxbmXMGznLvRt.TIV.7s55i6C2zpWCqGhxXa1AUtMMo6rXcSE4Vqm1QSxD.W9urpcO4eWbiV1aW_RyZ86Ttptwxa23Rgc6mmEAhQYNDsuHL2mOAR4euU5v06WF9E6D1eJzCUbYCKrJmeCpZRRp97HzzbPk27.f5AAFHSLCl9i9Q7xlkar1N4UezurHWRqd_Nl4GQybAD_uwWDZzGjZIztkw7Rspj9ASqFCY2.XoCSetCHarK6tv6uICavqVp8GQDUrGeqVgyixIMfIMK8Tc8beqyzIPxLuAd0n3qBsJxSO6u4TLB2h_1M2NeXrf6A4CaHsP_.goaePRIVkx9Cke0K2tFwGhKJGPi3jPLoE6WRxmnwnqJmy_z3xTM2IPXQmaC9h6MHt12HnVS95nOZGnG1Me3vd.md0.XdfWN.M0ZZtHQC6T73Js4s5KhZRMOvZmJB5DyqpjlLGJKSKM_NELte82aaBT0hQGCGdOtRmO_l.utAzxGMkFPNWeIAYxvM_zI4dUEh4LxDyLYqBAKDJpChAXHV.DMXNhI3Ve1YFMCsX1RwsyBggxIFJllOCAyMntzaH0z2R76BuGBqd1EeN3.jK.yAII5bC.RI3cCb9kv3Kb5IU5lP_GkW7JNR.CVEmmz7ndZ2SSXxCf02c12W6WeBiHodlz05g3d0raCU4g1ik0hjnlcD5452X.qDuSH8iKwqJPnwZYjH8lKIUBT",mdrd: "wbajE1zc__sq74Y6W4Mn7VNiE97H0dyty87ls5NDrQs-1739147935-1.2.1.1-nML1P_8oKZ2fKm2hIeB9kNuXdNzDV.cV5YV8vSAatT6Ncb7xybje7Xdum9_NV0RsxLJ2YbXPoXgMslh5u_MX3.qrBW6QM111c0cMxzOV4svTOPIL2RKa572MUGiovYMtOf0FFboJEUW7PzmNQprctoCeJg1wGBp2hRiaE2VzfBxfvL7GhpPxifHVyY4Qc4XKF8Nnj2lPTNELCRoqhH8zreWp8Zsvm5g912rrupF2uyENoVwGO9B1ySfggPyfLyVAPxJq0.GASYqUNzCWqRL85qdvhv3RfglrQOoA_pO8aVVAGp350PVFP74unBV.zpy12d2ztjYKICjQm2GPehjNYOMeEbaZe60Gw7Ps6YV9W2VFWAcnGK2gPx1aL4JJfntU1f2KDNKdwvIGp7OwE8g0sF8jptwRi0AhfIztFQGHo1pDgytqP.O57F0JK398qr.gm3J36ZEgX7cQa9AW7OjiRGUbSgvlZMPDtLPyx.Rwkfuj8WyYTrMZqOp60VCrCqCyGn3j6dxYHLNxIYAJoazKMWof4k7jX5HsTlHUO2PT8I.b8rIPdI9RfDCduz0j976gJHqxgqNvtSt0eCshf0MVswKmdCOFJ1vXQsDGxKd52ZY8IJlbYxJ2lNTPGqcCvpoV4v1tK4tJWD27Wk2dHfZi8CSOue0enbJ15nfbr7RuvNC36w6Mdg3jzdcMqQ.fUdDt4g3S0ZuoBKiDF4FyZKcoOz6e2qfER_FpTekmRPUpbSVENnqXjK2n2JxIvBKOx_VjKYCDpFwT4JVWIs9kgYVPLdsbnNOW22IzNNPHKtGsQEZnirz8qOt0_ucuBjapw2dhPWugUrrnsIewHbjr3NLtLRDuM4WARQiUoeUgpClvqv.5nPnkV98.PU_HXPcc6N95ZuMv_C6VxyuyQx7Rlc87Gn7fKzyCkfn_3RPgGx_XITrk7ayBNqPPSEYX.BsUWvcXc34wSyOO5HFhWTMEi3RjdNuI18uyxnvday7uR4qXvmCHq85464N62YRAuuGuo.B7GyDevRBQc7Ipl1IQMErF3gObVlecmBJsdwnvRCfkr568DD01HhTn9_umSnwz0IAYDJFFxvKL8NVWttvtxPwgDcv0VXW4AcFyGff2OdnkotpQGMQzS55c4gJV4r90MnhP.JJloEwsu_r57atPdQRifmKlQfLRCXE3nxGo2ujor3EkHuF31FMkAhmgyQk3Sl0KCtURRDKhLzMy498a1ZSUPLAepNvlxWXickr4QwP67994BXpkC7QjmOc2duMJrZxjXFkKI8_RYyb0IjdE3YOKkTl.qHzz4NA6ZBE8X9JLMUbXzkQHRDNT9sKlSogK8s8vtKPnVmwhCX3E51yP7Mw6rBhOii.kfujKmiOaKJEg.SbcUjhsh6Nqswxw1B2IvXu3YpVHn1QDwNvvgchiL0oS._98k8dtFVNvcbm0xze69A9.klJBeyw8p8EWPlQ6D3NU7PSOkKA7me8cy6SLZvqibT9hjZ3.CJDukdBWGDATRGicApMXPKS7QPgCkX_Ovm3TmVErQrkBon.qOR2_25f6QDK5Yd3QAavI_WDwnOvZFQhjqNrztkDIkMM.a2PwFgmnerTCPkC7tieJdSd3r_zzd.X6o1VNmz6SeTUu2HMQ_teCRoGfqF0pkg9b5n_U.UBqiTkEqEji0CywmbgxvLCpjfbKKwSqSSVEEvlbgfp.ekUlGLA8DdtBKpGHsHik7DTc2wvXYgz76UEM7mAR2OJhDT1jj_ePDr.VlrBn56rU8_JNqawIEpRg.fySYs_Z9t0hT1rkNtICiKly3dqWSQbz5w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f80a059964d6d0';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\/4935760128?__cf_chl_rt_tk=btqjp5UefzzwQuNdAThMTT.OZqkuP2XiY2ui4UF9DOs-1739147935-1.0.1.1-nkJRuC.ivsKTJCizhK5PvYbvoOLytA9ruE3fD8Us25Q" + 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