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-111355043797.mit-edu.top",cType: 'managed',cRay: '91103a8e9935c593',cH: '71beZpGmLBjLlZxKS0RC2q5g_ntzA4Ph.qaBveNeS7U-1739401581-1.2.1.1-1VdDFbF46tItr3PMiVKrYHF4PzmuFF.Kk0OrzXSt.tsHhiWxSxrV_Ukzy2UjWo6M',cUPMDTk: "\/post\/6785312940?__cf_chl_tk=pHdsq6Q5G24Iz3LCI4CKwagQiw23tXqLVN3n6NBNWXc-1739401581-1.0.1.1-OgyM0W6on9j13._hYTVeEMCzmcwlXkgF.igci.YhpWQ",cFPWv: 'b',cITimeS: '1739401581',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6785312940?__cf_chl_f_tk=pHdsq6Q5G24Iz3LCI4CKwagQiw23tXqLVN3n6NBNWXc-1739401581-1.0.1.1-OgyM0W6on9j13._hYTVeEMCzmcwlXkgF.igci.YhpWQ",md: "42JdsQ1gQPoUp6rPJtLpQDxJ7Ah7VwSXwkEStZ0LR4o-1739401581-1.2.1.1-UJl7KBw53i4K86wDX97h.P9nVccAsgkPJD4eNJoyB4iGY02en9X3NDSJj.RJjbLzTMCs4csLwUd7wLlfwPapFt1hUwEJ1TiqhT1NO2v2pOTwxeu4y8A2.gTW1cBP6rBN8bvOnOqTMbt7dYEeZq.SsNBnUuW6k8MfOd5.VndiZS7Pin5QSvYR7hLz.djoyKVRIr8iN_uyRdv8axBD3Ds.ficc9O7ffA2t1CKtS0TBGAUfrWAIFzha5iR0BclKbASM8I1iFLhNcTZghQeT2ArcK56cn7hf.Ozkgr8mHuA903WJypC.B2QDFSzXFxlF4cu5hd.6fJnd6F2gLeSu3S8sTqxETCKZWDhqXdg13Xl8V8DqxyE4rp21fmWPl4kWDcgAVoQm5g0xIatI6fAkyWrGy_rT6DmX2_zfRK7Q80RYjzI1qIWusCiCzVv_s8n8Rk6bNbjybgE_zTo7iLK3qeKzB_mKr1sctn8OaK0bnubn0wgw78W9RvPH6DUTuiOsHxXG7fnLMWIqrF9Z0JoO_0tNLcAZ0GfBGtugizHGzI.qucl99C_V0vEgfxmOLp0NyvseSa48ZBnE8_rdwwGSKo3pI_gfT8Cfy4hMMVEnD2Z2jUQ4oH3D9vGRjniNqT1FWfIQ2r1WCciazcLneQzSsfLg75ZiMrwBy5FperlPCZfW7UY92RN1tNUFTj2oDTNWk8ipHI1oba_ndPopxEoWGIlqvZp0PvNt3OemextmnCi6lhiz2b8Ym0.fTKzkSMp_RqXkWYiakpSZtkfNlsmg_mdrw1bnPo1EJDWoOkVZihIUTFpHMSwH4npIr.qkF1gt3fyy.JX9rxcCpB209THJco40bVOwRnD49zZUBDrHwBEyFRX0zJGSHdgS_Z_nNidHnHOtq7UAMtKaLOvfXrjsTkanuE8r9hVrW8xqTAEnkg8XcFvNFDQoaDCbqGS7gCaAQ7EBQ2KpfS8LoZsWDkshy4iLtfTzX5ZbC4COiPaycExTtCe1SFVbFuAwYnmlgvUIdwU4GaXWMoCA7VqqbNihkHg9T6on2HlSYlr4c378cWVW9A2g7ik9KsfRhQPxGeaeYouuUjPdHMOI2cMn_EoOigMk62qubdB5qABLQvtaL09k.BrAKHoOXiCkHfmH_XkIMhzn7Xt0hebmedZrhCGJ2LFvs_2KT_h2I4sBUMYb6e6JKR7qcNnorrYP8K1_aF9WNhu5uW_2Qf2bGWSw0E0GkSvFezXjs_1YS.uTmkV0iOKG.PYBQD3_E0yDiHV0FoA57MCKY.Ty_iopS5Wkwj8_PEGZma_QhiCHyIMMhQbDaMx._ZQX1vjcKHaYVrEzwbodPKfrfP0WU6QMtTYLRnaH86wPkdwjTKQgNk.s1jP93IbKr1JMaaxXhgLCVikPtVRumeYjqOxuZEHUY5x0ZzZggCQNP_ILG25cbMruZTGv0HlrFDrXDVn4EUJB7X4ru7p3B0Kf2vc6xx8US0IC6fW85L2FNQ1NMLi642AQ04qWEu_q7fHbH4CosgsOgblesHmY0snn21NFnms_40C3OB1RMbRfWe2fWdBHUjiOnLCZaEGeO_frB.aNOMKs1ql_kyTc5T1dpG64AEg5H8iPvz.lkZr8QiXopdflKujrYPt_gVqWH6Tw2mm__6Tc2n4Rnr1SGtQqDQqG0UWfZdusW5n1zP_2i43EppcurM2ng1VKvi_SGoDR0Lg8uqM0zH3N.oWzrIq.UkWuTh8iNbBSkOYPj.yt.74.3MhDPn.2Ou8G4UAF6rcJ_9UzCMKa9nRG3R44XUqJlEoFuQbl5vr49Sj5Qd50wVXxyJ7u7LppXOfOJzXQNxL8zKlyn4pPipw932uuH9ZfNWN8pzeEk4sVTQBY3_2fGZlwCpf0BMtMDP7kwOyfnXi4iOtuipyfqCOo5g1LzNM5XETnTDmGQnY7JkYvtfOdDd9XuJShGGcVf09Dtk8gz46U34AypfdOVtA0NsNfClrkpP.xTkMxgE.3cRQHgb0JsmosOxNQfIwDm3UKbZwkp8XQtWDjq17npw5NxfnWJc85LJHDT.cgHOVSVmP1ke8kyOe22onyBFYZ781QqsSVa92xHtoNzMKDBnHHkHWKTgjXLVq2d3I4uB7c09reyzaam6VzrhRlhtn2J5eTDGP4JzuU6ReEIKYZlSDo32sJhFWZEH2cZHfWZ_tDe6gKY8KF0CwuWJl81LusqRWoQb9NJYByVQ0UfslzMKPo_yjRSHwM",mdrd: "Y4VsWAlpc9yt3x7n07l363jtAUlTyaiz5he.xQBOuRM-1739401581-1.2.1.1-QpHcBMFZwUBj8WCwZkrSwYRXfbETIKOuuyH8WWyvvb.SGaHwG2uYtW0QUyDnMoLped9zIeUeGE.M4M6qFxlwdhgDHNGxah1EzD0gqZ6x1H3nKQpmKMrHJbjH7mSXAE71bbm8l4hwHuD_OpAmE7HbhzsbrP1YfHpq2dpZzT3vq9ZLlv1esahbPdLpRcqn9psGZcf5VhZxz9jnApPrL6.Y.W0TIcP5GZUuZp8705ZF9Jh_rsWpSNUpyWF04KrQQjJdam3nCjeiLqsJhQNoJiEDV9MBYeRlWs.dtmjSVMfgcoznvJzEKwTCea8T0ULWloGt4o8I9l5bD4n3ZQEYoQ4uDG2pl4DwTTyLp66zfEdHg6D1N2CZ.SYluplWyX0ec2XHg5oY9DL7oFuZAzDfdCUd_Cz_dqtX6MiNOBzoDYdOuEqhbPPMRRAjXWZFhEVq7yW9AXbVUZZtusuHY1DUu9_BBrebXLqgl8cwVu4_YN8LFtgHKlUQnl8vSpDZvKetbGjyhtVHqKJMSqOaZd1MbRXXyboJ1u7k5BBngzG.3og_IXM3om.chWDlV3HBfDFoTVNci8H2CyDr5dUor6OiyzNPBTvoz6BYcU_oRTyKbumc4fhD43E0APVrID206_wybIt5A6cx8r5Ni1Q8IpMxEKK1LmpMeSZB4CiTxM0Wq.KPkTkN7MEzhogah4pwSGyGbQZ3jHltygRj7Sh2eRKSMQkS9kSMpejoHlUKMGIdxypkyxOxXblgND_5OFnbuMH.Lkq88_7lorxElSE5Q_f3gPDLCYbaKYfU6bWs0_Asiz31x4TI35k_xYXICsNH0ivJC0n1plQ9hGiLE3xFF79B3F3Fl2m95z27lognlFTv_NAZI_7svBBLRet2w58EtnwypzvL7voI8epAvvqu2U6lx4TUdYBv18GAoG7Cm.u1c0Xs0USgRSgT8oJsKgQIB1wusFkioOZBmjxGu7aI4Rbk1dUU0QjL4KVbdimJKSbU3o.SQwqYA0gAraWPIyh9uc1Qj9f6ZmYviXqz.D7XdzG1gb6VaOWQyq.Z1LvKs3CiNpfKHzWldOEbpTIsaMEJPd.m3GFVJJFCD30ruIv4nEbt2J45Gr6rqlGwJEzMf1nt4LiFbHeH9w3Yae5lXjRNsaYyKM5gx5PSjmhWoXIfuePPMvIgSxvIGupoHg2b_u3tFqE6f8OD8ffpYWPYvntYa04KMPGvXCIfTpNwlSSPsQFewQ.hqJkBZKLqrNJjZtVLJ9nfzkHzOmO65wWKq8sTQgt1RIIGuOhl96phe3N_.4boW_HxW.QCl8ncit_NilrUhl_C.tUiN9OsUTKQMTCYlfgI8pJRFxpzKKQ.Kv1KjJM5woUwcnmyhmEr0AC3Gp325gUXnT7u2Gd5WMu40FmOUF8DrxQaGBhZWpvXZaIvdpVmt7WQTi98DdYlnT22aZWsc4NJUCDSWlMelJjTtyLUd.ki8SjiWwtuIZ.u3d_ftra_R.QISLQ3SZFNWFztINwmVsexCHuPuEzpSeTNZsxANQL1ioD5w8Cl8yzccZYrh6wm25q_FatvTl8aZgrKEAgo8DjDT5HFSsYvkp0wI4bd2szJuE4f2erFoEqhCxINEuvLBzN0u6GvioCCCf7Uy3IscQSjfIrfBHdUuGDwWfMi8qiTR3fY0zAS5vwvllMeUVlSXBNQnaD_qpuPW5PeEbj_fA8U_csVQ2TR5nhZrvxLLArYB8dVQthomNcVQkB0dvVCO3kSB9orepRGnlS9ej4RJWpl.qhTiBjfB_LlIB.BtCoEvt5dHjH84_H0MAF1pcExkyOoKA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91103a8e9935c593';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\/6785312940?__cf_chl_rt_tk=pHdsq6Q5G24Iz3LCI4CKwagQiw23tXqLVN3n6NBNWXc-1739401581-1.0.1.1-OgyM0W6on9j13._hYTVeEMCzmcwlXkgF.igci.YhpWQ" + 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