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: "850948.mit-edu.top",cType: 'managed',cRay: '90f802552ccad6bf',cH: 'bXIZmvaFDtUfbliEjljQBTthiBfF3m_O6HLz0BcxlSA-1739147620-1.2.1.1-saLT59YekRa4lHr04loUrJ5psJkjD04y2_pN5NNjV.1fMXQ2nHRfesoATnackPPz',cUPMDTk: "\/post\/6329418075?__cf_chl_tk=WmR8mjdmWcFigQNTMzZg9r5Y_pzuC4JAlOJwUslL3EQ-1739147620-1.0.1.1-PfqHnui4qDxEKpTqs0sHvHMrHiKsoTIikjJrb2GhF80",cFPWv: 'g',cITimeS: '1739147620',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6329418075?__cf_chl_f_tk=WmR8mjdmWcFigQNTMzZg9r5Y_pzuC4JAlOJwUslL3EQ-1739147620-1.0.1.1-PfqHnui4qDxEKpTqs0sHvHMrHiKsoTIikjJrb2GhF80",md: "n4Ujbnxor.irz2jIgdsSjFJIj2Luv__7LfLnqMiJsdw-1739147620-1.2.1.1-EmWlKYRUr5SQay7chHG6GxmhGKB1PhfKLhZb3ODoYKLwS4nGE.rg2tEsr4P4YehfZy4ACDc6RZGwkY8aU8qvgOCYQ8oSRy.r7X1ZL4qEtAsEFnnGQIdjIHs6dMsBKfrDjCNP2Saj0o_ldPuUFGaW26c8cRJvNeRwm8Eof4zjmuVqlLA1tgCIiKItQ.1w2GKoK3jv9YNj7E28Z1h0NLo36kmgWtNb8AD21D4eXtqeinhz6AWDL4GPYuYaxMfiAV85NEc5Bjifz6RwnYh_D9FoyY461ThngDShyt0cVtMBPZ4cRzb3o8gPsXJ.4.GW.K3utvSp1hjDQTmEDNGCkY8EXK37OJ4uHYcepm1_iVFUicjI234ytZkyqTMj4pTZrsFVj4r4Tyz5HYwhKMdWjjJPr6N4ku0GoBe0xRpcxQ9Lz96StR_eN0gcb2wjgjAxJZy_1QEttQ4.HgwzVBBUf6oFtaeMpZbSB2QMXnlAlyv7xIUvbq.SthednXxTe6JYsUeHnyqQjtkTwsYL9pP1.8CkYvbJunbTHBrLznvLx696sudvm8iwCPLzWKxM6PzP6FDnHlmVKqkoQfkvIKuY33UuoJ1nCOMMqELPazaDou8IYAD60wqhxMyf61ucZwaaRq2Nma.bmaK2U84XaklKxv87W2mqxfqWs1tmR2tr9XvNWbNV3V8k8GXc6kJcLddB7STgrJZbmuO_xuwSJA.zDn4hYF9ciLgiCu0_DTxAnD4Uv1QlLTPYEDnKswcwVpJ5SWHCt5IPqf13KJhE1iqhkzCWtoK4IXBnXyiFk1YrA4Rqmx.hOYLW8ycs1sg45nV8CYpdLvFuN5qYejCvkR8Qm7xntI_XJjrHHaS8NXkLOUaFgGDICXxWjpPg4P2gaOQoLe.vrDbEHrrRJnzSb38Ohwd664ACDn75bNN_9HglfOfgbcW5.YuupmWSPhaLR7dFozrALKEiw3m0vvZpy1tumA2bpC6t.e1xL1f5XPqFXQPwOiIntuwibTqYuFWUdM8mfcYh2dCTyWT1oYcv1qZXiZsIRbsUyZHnsAc0HQhxe3H77nVqvVMdGxUsNT1AH42602jziOT2Rq3xjNXumU5X65l9fpGyLWIciBJzzMFHColJXXEy.RvudCb5brUzXV8.jRY.dTLswoThXbYIg7ai2DAiiVbs1785rrjQj.tqTYLAbuXat4wWf7IZ4wsBYFpbJ1xUt6WL6RDof6X1MX1a1hoC3.9ExyHBhExXCK.VlCDcyQt4ccCBMyiX95xqfxJA43Odgi8RSqWjhe4urOvj0eKOtdJhfIglWS.IooHII5RxwaDFsRSYy.rBADcDOAKA1vlJeIx5bRrOpXD4LiMXY9hm_03SqSNiFJr7ECzO2AwFX9v.sPH.f9ixRt6tuYNBG3FRP53PQQ_WIIWJ3bgCMICegs7jwIa2I4PFwCPgTSkIeUIvvLlLQCBYlOeqM7X_cExKpHBkwSDrSE6DkKUKlNFUCwaB2NUM7GkqoMfblMM_.1MHb9Jfe3u55CUZRqYdFC9PPZZL9pRbJCnNRb56ruczCm9QILbKpR1iG808_TixuuwFUpo5SUdD8VifeXuC4NhJsMvF6CRoz9_6K29JLvrPLSJS8HvponowqGeoyi1hL7CanVmZw3dRZB_FaU.tbSt66hOnWahVveotTu64uQVzq36F2f7D66WhTu1NOtZSWiVlALXnS3To85ZYoojoj6S8yOaLhEPlCaL8HMKkEZ6dChxdNsAqRmKxSbdQGJ.dU9zKGPVFv0H7dN98FXtnhz0mkswynjY3uGqhVMYfhSnR2nES24rMJLxSCDquNrSGaZazpTfIRL37hE1wAOHaGXr2CGxxlSNxbAdmuFfwVfafukiyzNs1IOShd9DUzbcTI4sJrRX.sHtDfBa6KzYSH3p535e20RPCWg4vho_puPzQYLO17qz97zjn6YqgnhgbGJRXG2UspeHo2yyQdkSGK.sIsR6my37V8ZFWLGvLkjRWEh4lwJMv3k7FLrafox5uxE4YdDsSQjZTSbIbo3PaAVlYILHgv7fZslQc3ZLAAU5ykrgip9mF_XqBhdxAY2dla9KjbUPvA9Tp7_7Xphk5nOOaC9rM2L_vmKiaQPKgfoKn2uVc3a3LXid5DA95Ksne2nwBUrCFLGJpcNMwFe8.xQCaUMpVNwkXt9qoAAKHsoFhUAkuzMIwdxBTLM0tWXtNe6Y",mdrd: "JAuAlrZU8.zw_4FSb1sMnBps_7uJqsaIRIugiEEw4_8-1739147620-1.2.1.1-X6ozzY5dv17ue0Daih0OVtGrDXR9S2OZY4LGk9dBdeyEylH6BEsyXos7ipu9SYb63UWaysVdeGHiRqjFkVUs9dd8eGxOJEFnfEXeXdQUUyH7lCw4dP3hmw_D.yku0Jy4xN5Wn7NhznRpAcUWEMpEI5b0Jv2htsOJoSHnfLMRUuEsd9hZ7SBxO9N1KneKgjgRn4zAMtG6lszYmx4exCbOwUh8e1E1Wlgh2A87Vu_ndGcDkNsmTCcpxyzB9_CbjGXdjDHhl6ZefsGZwFZLmyetMbGaFXVkSW0hUVuBx9TWBvhb4CPjF0JfJm0w2q3qt0aerpEa1ydhNqOob16dTPyIFzW5uQ8dySRU0MjP.WFhoSFcPpAzZpq3ZwHDOuHvC2IzD0c6Hd9nbkfPWHs3S_J4.fp_h.KK8ID6R4U_SOnfaDvIxNud3RQ8epmGmbL.5tajJ6KVIUY9THSRo0q104zez4ebqGAg0LlrZihAdTQVI0O5em3lGpnvovAhodRMZnuxyVseUNXSsFP69CHsIMyONd0gHi3.PfgU8giBcWws1QADAodJsPDGT.BhN08153gdcZ1p9edSCYtJCnxzeT2WufMHpPuXkn6ryB4NgQlaEjZd0h8cM8LykHooai0OJwTXsCpDdmJAUZq.7yTnaje3KK_v8QBitaivqTIr2YIGG8UYovKteqOXbtNqO7r_rKPj3snodbDzRnRAzyB8fBKjRI89596GnWkvYTQTyl3c6prUcCklmixgJVwiHODiDY.f.9dNDEgONZglJO4fXWaSJNrRKGctE79GsQrZ_BEUmRIWYCzsD4MmWQyXxP9qxXIXyqhUvSSI3TMn65HcA3jjylCebc0cNCVUQGBUkFyWfBoRJ6uZQXSLJTzI5E5wLSVgIlEE3RCRgu6IFJqMcjyEXyJHBZTpvh0u52ql.CLEI4YbkJqqIbQjRoN3pCb6438RYaGX1.6pPh.1FtMjdgtNAeV_RxN337KDageUsObG48WYMWg4.cyZ.D8sP5hjocx4Ojub35m_WqdUhSnW_a1q2sNXf0OpWyEjYPq24uo_DLhxwrZIq7P8NUJxFYsJtU7flEODu9_HfP4G.Z3xYqvg8jOtV1zOe4sSc8TMWc7HMIBmGZgtR8JmfLIf4x4Dyv6apRr03dzsXagOr3oWNj971GIiAu5Rp0pLC562_UWi0d3f_gLVXxufLypTaKSqxNpLJHfog0x_zpEci0Lo_DXDqA_hxmKh1he0s4ofgfXBwdbyOtlvddx_9PdV4B3Fz2Ltpq_y_N8_bdjDFHJA9e5oNgzntOVwXP8ckxhOXI80lu57JHW4_oMVerAycIiLBamdBnkLoetYgt4C_uAPabNq3kHqUGQNpbzj0lcAQiAYYOLafXHLMGF0HxEhZp9CJSq5.q_.ohZL5IqDpv4Pqnnad.lNUXf87DhmzbRGcmLxT_xG5t1nbSLCT2C2wZrw8.M2xAiwX1CKvo6jHP8ttu2E_neUbld87._3UsV6vIta048Jv42kZdcgFBDLqw2hGiPqNMSQ7lI_EXp6oQqz.imDtzLNel_9LhjMWMu0RP7iyVxb18ARrUvh_nykW3N2ZjJuQdWF.MiberZ48z929rUWY6fJ68MhR5x1m8DfVYtpZkdlnFPTcKXxP11CgkSQHc.kQMcBQ6xJWIhhTDcBb3HSDo0HhLrL1eBJpFrZiSL25MjVpH34yHOh__tCufZ785sgZQtr6jJ2pA8tMqi5KcF7Wm2cbEnALXr7kceIZSGK.Oo3Sp3vC3oAYqi2zmbOdgIK"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f802552ccad6bf';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\/6329418075?__cf_chl_rt_tk=WmR8mjdmWcFigQNTMzZg9r5Y_pzuC4JAlOJwUslL3EQ-1739147620-1.0.1.1-PfqHnui4qDxEKpTqs0sHvHMrHiKsoTIikjJrb2GhF80" + 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