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: "661029.mit-edu.top",cType: 'managed',cRay: '911045334a8007c8',cH: 'ATqXU15GSJkih2UYb5ldn.MSuWiQe.M3dwnQwVa9a64-1739402017-1.2.1.1-36KNsDe7MyCdIlHcyAnoOQT8s3Z8ouvRYq8ZPc_Q3M6uEMV1hcIZcXBFqT1xIzXG',cUPMDTk: "\/post\/1079562348?__cf_chl_tk=DQ5H5dvhecB6eWuSXvgcihL8ghTa600jhUhgTlskTew-1739402017-1.0.1.1-o9_KWsqLxdEjkgfBgrZnnTPbGJT7TapboSlIKt3kzPA",cFPWv: 'b',cITimeS: '1739402017',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1079562348?__cf_chl_f_tk=DQ5H5dvhecB6eWuSXvgcihL8ghTa600jhUhgTlskTew-1739402017-1.0.1.1-o9_KWsqLxdEjkgfBgrZnnTPbGJT7TapboSlIKt3kzPA",md: "869lGtNXKm4L5vPanbLYeEz4a8orQzrN8hgrCV0NP90-1739402017-1.2.1.1-r10MviRzONZmFYH738wS6KwMvD8M5SIVRRa91hjrqUayN2JZKqpk6y4AyHx708hYQuSX4UX0xOX3yvL1V2QtROoe9siDngGDuFtK5tgqwSCdXsZUPo9Pmt_AWBEfbvYroBB42jz10PN1Mwk8E2_6SBIQcL5jqFlqHPewh7FmDkuAgfk1zqnVYhFyYk6ma82qkTTDYL5VIe4ONzjaW0RzAbHnAKyrU7FTC_K2u4fFlajId2jVSStFgVdNwtXymAHY_e1cBHZg8QZWN3RMq857dwXdtFCkAG0p5EPGbzgttH_NwerNMd0AqKUJmQhnwOmurryQpVKxg6A._NfRklygHB11f4UGdWAYz1kMTvXUV9cYZWZpcoJUZhhjkdZ_FQGPOGCIFcyRlP.MDAkKctJXcaWB6xqX45uhqPkRcUouBW_URsbY2NhwT3DzBf2sJKyuDcdOMWo1bFG9XV7pBE7.PoaeU6RFSRPi7lP3RzltOAzYaOtDiZC4jFaRJvpNl9V.papaahCQfLwKF.ynTcA5fi0dVeMt0irZzx0lbkYPjVToniFdv1fnspSEFb.RpcPOS_nNDM_l93Mhreo_Pflqrd9HBBjf7_jZHgsb.qMR2U9KDE_Q_doFcmDfFDxemILp75x0gNot1aJHv50_uoAV0nLdMLYunjW409Yce1ptyOFXVn6mTLKwCEuQ0fJ6xXomNpQpySn_DHLJSaqaYT4dtACxUR6bUowdoZc3_IFW3Ug8dySYwV1z8hysGV7AuYZHE_OwvxXRd_M0XHqB7M8TwKnQdh4p0i9RjxiSu6G3iVlX9xwjt6mzIzBWxEHhog5uE4zjE5Kp4ELi5MSaf.Rj1rZU6pBNWD.8RCgXHDo9p73MohNxHh5CuHmhziAX_mWQpANqg0OyazFVyfcsmkxqui.PQ_6BNDYTVBHfNLrKnEnsUWZpqOSktKwXqjV0.3hslviCTevM9asQy5sbpzMdJxAqvl5fUiNSQX3gRHcNyYdz0EnXzJU1P9mzXgYmgD8sGmwPpJxn1B4jwAzsLBgajsF_11hRKuH4pq.5F_44PIbBLDXOhXeXyvO7k9go.utZBRb25V5MFgmUK1WvcCqHFqcp4pPaiPlX1lwih44XHeAIgt_5bqfHJdvOcJ8XtaO_5CaZJDTKSk8cUlH7CUVqxuB.9Z6No33hBsD_VLSAiC.7h4myxQ8BrQ1WZX7x.a_MIBUZFZWSbijlw8uycER55YRxhRiFvopDgJlifUC_cw0y7R_VpUOse9wa.RTBYFOZ9AJgo8mt85.SF1u61tJcCSL5IrUJ6eAFx87EA1ENDWZ7yD9UyWopeGjDCCdZTvYZNJ7333zUI1NE2efEp1gUxlvJnZrs3.IAM4wh0oj39Ssk40SYYP4IDwuK8tVkQ4y3aSyWBJJVwPckH9uK9qkxJc83DfajL1WDqbjFQL9vTfRrphx_vva2MjIWyqufSGmHLO2ZTTwbD6LRF.mNcpTbyquFH3NsTlA8dVFeyBmRW_fSCDZGzB02MfUqk_suU4v9H5Gapg3jVAP4uLhuCQvVL79tzqC6srHP9gH8HsGmNbii4fYS1QNGIwMHryfIqbpHG.KOsG5hh_xkgIrDJHILMSNyWrw8aGR2ySU9zOmSAmPgZQTMJZ_SkUvE0VG_JvSwP4JkTbAYJXYDaqVSPGCYXNqwg6G.OmZQpxn0BNebN_kDADV6WFwxOutVPcMJezkwQ1cNX2RH3Mh40KPfQTWL.FnhsoTKht0agLzs8_O7RQFYpEVstxiW8jTaIq59ksl8_itm0gDkrtDP3Hspw9H0VwnIXR.9rCYdAKLHsHafjE6Rq9Hb3xUdJEvfZadQy4PwUt_ghZKwDqYYg1nm.wXDio978dKgFXW2crE78BTWT.Y7GBZjCpOja0ys_T8aOGn8OA3sQrmzg36KlFYy3GZrYTI2eHbHcgZV52.pyFeNtFYXeTrcIM5oMWYuOy6YlT16lytTZcZGfauiIexUtUNiEdw3.K7kXfZByhiTdc3KfVBbD9Q9ToZ.fNzviaNYUKa9Z9tFtv1SrnAxBB0vqjDha7aeiw_k8lQKqier97xXxWdnQa8YyjFaikWnFA2veJ7I1lT6i7f3fthgl979Fn7e0mepXEJmfrSvLQar_MjXCvV0InxDh7PhdcaH0iEoGtuZnFEoBJEcrSOa.a5mBUrzE_PYaHf18mk65jTyjouVY3Q",mdrd: "NqBeWRTCtnl6v4OmCpgr6RZBoyTcb0cudc7WIkFlbOo-1739402017-1.2.1.1-LMVyXKvzUQsOeaAowAaKUeN4T6J89.Lxk.iuYXq1.1zIRIi_ejwMjJlgELXJsldmYZ954euewyc_3QCJf5.g3PySaWt70k5CX8h33QythqOwV5dXig2UFET_1CVIO_tBPxLuQiHsiW9tRKP3fVPBxdxR9MwRmf0ahUezcXvhfDLgl6rfE0fnx4w0SohU2QyzH9rwhd.qy6dxG5SqBc0dFl5T0eem2Sb7m9zLr27If01ycUEi7rFi7dSO4cA7kW7mVAFEl523FcvCsxt00m7kXFZFHUZJ5RdYcF7vLtr.F6fUsqf2PH4yKHLKsbUZh84cJm._.4d0BWaNWApJqdPpcvoBR68ZK08J3p71LTuC81aU5RFljJtKzYtI6GEDySV_bMk4EK8zv3YuUcFW_47qO2aYF3QrSQUHVvbrOm0Uc0Oc63U87wg29haMkKxy6aFDA.Wa4SANgNzusmRT6P92L1rQPHF4d32WvxJHKTJEUXA0AO0G9mlN1txV7ECjUwS6LOo0UyvQRTmEU_eGtA5U37MOdPgAotqA7fXPn33oQ95JZT1ggr.tjVAiYQHHRLHHVeXY.GRsbOING8A3fMZGTrM7RvkKhRUk9bEtHEYe5evxLxoWS46NV32u70czCZbpBYuYN7a0rXNu4YyL7iwdkPBqsCTAYV7BrISY_EnonAne90iW0q3K5HSeLXmIazH.evbrA5dj9sLQaLjnHNSYD7tXpiuxBEuh36tmzWqex7WDGlCl_lJ5HJXDIPqVL5kOT0NcCWhel1ztcPYGmKEVPajAbp6JewYwDluoYcGUxMdO3908LJRFzAn16MzdVyS.iJiLwYDosdQkkcar8MqDpygSn8c1A7_4RqIVAFji3q8MoQXkh_2l4l99BLqHrV0_YAMruOIr0HCgsVd0Bdp7U95GvJTyRGLXkdfPVED5t2ZDoH0nEYhu_Dgx.HdoREk.rogfVK.YC5Cp8DNr36lifmbhcEYgrjPNd.B8YGhj9er3w.gVnMcPS0GLf4NerrmeK.corjeM_6yXoO6SrY2rwVV10FHLcSqDT3ijiDPJhBdObINYlAw8OnXbSTxkF2G4D.o8hCePHVHks6sh476Sw5eUubJAPTkXt.s9vvv22PD.LTGxZZVHuX9iOk6yEeZTUMITcKW4h7nEne5HiAH6PI.GNQQ0stS2AwRb45CcaV2htiQrekQZ.3oFBqZ92ASHsx0QNOhxAL9nqRTlAVk8un2Jxahxw6xp3XVDJpA.ao_WXGN4dohG1Dp9Kt_VL3yOq_q7yyt0FgLxZsmkWTh2ZHlCfHhea_UlrLyVPsu7LwK8tc1NIycJCcL4Tq4ouczGtN7eMh_3TV8sWkW63GWD_3BtR993ZOW8mzl5SrV6aEKCCN6k189Ptu6UMQCcsF4cJJ6V8hGFDOvWlitm0lYX7ARKa0UcW6DmItatAdfR3zazgeguLRplJzItqFoEA5SrjGValDLdhF3A_Vq012FiWq9YvREQEMrAu0BjdRrQmyLscYc.P5k57zEu9aoZhWhI4sZyGV_GfEtp9R3_AP23w5YBUvv6cSzTKZR8dslUL0I9bUi4JOiV.w.oiod3cXR0sA9qTPS_IUXF5MuVI40gqZlRWxbeHCrSh683TrCogT1BDq0AFSeRozQO.YfyZomNqMQMFMw1zmLTdTCEhDQgXbL.k81_AuWNXHGDloLsyVdOlSf6uFCrnRLv13v2qos612A0UbYvhDsQJXNzZCn6.ZlFQDOj4a5HCaJBagCOu1AK5n4dANTPwF6TQiomXMIcP20COrpNa1U6JVIJ03KDtg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911045334a8007c8';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\/1079562348?__cf_chl_rt_tk=DQ5H5dvhecB6eWuSXvgcihL8ghTa600jhUhgTlskTew-1739402017-1.0.1.1-o9_KWsqLxdEjkgfBgrZnnTPbGJT7TapboSlIKt3kzPA" + 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