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-021980925864.mit-edu.top",cType: 'managed',cRay: '90fb24abfc73580c',cH: 'PFpl_W1mi8HTedxTjnrtY0rGh9Yezhr79.H8DpVVTyc-1739180484-1.2.1.1-YJ5sYw9FtNsDldoIy.zS7ZisNNxUhPsabDxkWX9Ee7f.T7xEylItxfRvf2mkCtVO',cUPMDTk: "\/post\/7193462508?__cf_chl_tk=3sL.0Q2RkEFkxqsyLEz.Tges62Yu2yv.bkKXzWZaykI-1739180484-1.0.1.1-KBGUhPKxUozu9th8YFiEAjltB4UJOE_4o74omCrc7R8",cFPWv: 'g',cITimeS: '1739180484',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7193462508?__cf_chl_f_tk=3sL.0Q2RkEFkxqsyLEz.Tges62Yu2yv.bkKXzWZaykI-1739180484-1.0.1.1-KBGUhPKxUozu9th8YFiEAjltB4UJOE_4o74omCrc7R8",md: "TPW0eXBGpDlblDaUKUctptOp30MQ1VipzXFAzGAhn8Y-1739180484-1.2.1.1-Sm3syx0aNm3IvTSIu1W94QRrkJnNDD76tEPuxpON.C4SYM8hPY0BesjFaJldVfQ51N1YPa1VYvq2kQ1lVE3wn10FFSQ2GwC5X654tEEHn3PsE_SSNbv24NVU_018f4sn3ZKfLbABjOgG9IxIufoCF8hf6pCHvIxUaqBiKjJf_m1aJAc7geHCkoJ9j.HTt58FD11n7NQdPhiEE3_UlwRYyY8bTfAnVG4qdvFKPEe2nK6pLDO45S0gynpMERb1yDnKMUeJOtASO_gotBO92EIDl0gWInrws39sR8ZfYMtbbUEl98l_YiiaNZ4SNPEuEO4umnBrBKCJjfJRVL0K0b1lYFhwiaYIximwbSQzsCTFyx6LzdN2weDaAzspMl7hZSCT3KPnRubmV13b3u3TuiULfzdVcRg217Z.xRUDrGnr1sxP1ydzvhDraQHS708krFyp59ljNEiM9ZwyROr67PROStV5ahl59Axij_YYu9e9_gSOZ.xbt2rAMxu49pEx442xXSxGJ9Wt6elCBcwNyIomgm7uK9VeEqbT9XeYNSr0pod2kdNGAidj2R4a_gg0Z_x3VZtnZ.NMCiA4.xfuZTLyTrg0XWKqQkiD78Kv8Mu41KTuU4UtDTTePeJJuzE.eTGUL5_dBZoUWUYqOmoYXhiJ.cx2TXFyGAzplazO.4n__E.MiWNeiKo.u7UDWmaAbyKndIdRuBa4ZJVBEMTwAXKzh1lf0Iioi1YEpYdfuyoC8WU6cEBiGRBWIFKOEPF68YxBWq4su_TGu4RDt0U6NwRcgj67SBOetePQQYZmAoHYpVQKJMj3qmy1ggIXxrU1vCTESkibno47VKbPtWivlMgQdJ0qqxOJZJpECo4Dro9SyZqWMiwoO2XpWxHr0IFa4ekUcmQNIyyHmQMylIINTiag3Vn5fS91VwxdhMm6LcJfSStxnRd5jHRrki804NTTqW2aWSlErnW2WuCtfF4BJeGhmeEA_cRRrkzo7J87Su0fJcTqNrPZTgejmfjCDZmWMOKhiB_8s0xOW1EaNx5jZfZgJ8Z9pbGcA5XuJfoYIrWfYxbrKOss4g.UT1ywNrfYL5FNy.fE4ua7As1uALP3tP5VG1Bv9oN8sltxOSw5.Qaq_XcOxPd.YbBIMMjhwrjH5dOTsR3PGNXmUWKx5.B4Vum58CVHBhXNFv0.WjwZzu2nyyJZZ9ZSJ3UpqA5rHY_CDPmC62KwFoZ7s_gzag1sVZbVDO0sbFvXleEfz8lCLLESGJXP.n0zUlxlf6Mirkb9Cd6yTLDfYWqM8kX.p20HrqAtih8CK0NYAl61eX3ZkdKgObJLdRaEy6_4Wwkc6JUoAdGLDnicwDIyYPaB3m6nZqgqROBOKzhEVpvJ.EHirj_vl8b2pCEqXCxSbF.4Sc1QpJKjPBlQ0I6pxVo0m6VzZUY7N0_LXJgui0.RzkiwQgqKbMx3r3HYPMRtOQBwu0g2XpquptvSKHslUSqLgtgng1p4C9.8QfYaU0eXCpqWe4nVKn2JJ_j387GPcXyrrhKnrFSuKbGhVgBcQ3CxsJ1mlAUebeHR2UfGhrNVONO1_K_Aj8vlKIwojgKSwK9mrddEJZkIP_JUw56ETyol.k0y0Aeb0ds.MJMg5CxzgAItp2rQXcofCY_0jSWOhliFkI5oAkwMZUVVTC4JMq1ga5HGkz0FlZbyQDTGv2CzJM38VpFepH9OrgHR..bFYtIE7D_8EeutykTjdIJZCf7sYQUEEc9p3cBZW2OGScQVUL.LLCDjEhNjCpxGS0x23M6zUIkOODnB65fw3H0yYqf7WmJWU3UhRLnDfm76YrkDNS4SSjmy2A7GbgaJyNJ756DSgvhMi6CBGSSx1uTutpnaW5Hjp1S_VFJrPGqazFFerytI7TRM35LuhzW65BN65Jppm1F1plgL1XjqgIKcghpo58wv6Qf_SRjUd6XPurd3.KOwxguRsqo6lBWJyghOFblIuKDFl1by80hrFW9TxaekLcjnhH11.vEg.fyFXP7H75jWvXlyP5f1p7r7GqK7gPyfpGVPv4S7AkXdwvh9oyRlWGhL8UmttQ_aDs6BjhXQTUA5c8sFyA9IPr.CSvCqyO6CJWG7tbGPiJ1rbgPszKl_DuwsENW8s2wzarh0AiNff5UtI1_BKTW3rfVFLXzfNbESDAZ2fBAsvIboDcMgzFjPb2Db44eA.lOMYfC3L9v1OnsJiMxsM84TIU16DYMHU9wlm8gMRk0j",mdrd: "vXXopPJnQ0aCoMKkSFB0_MFI9kJkEBJziB88.Z2aGpc-1739180484-1.2.1.1-.51eDsPmZgBgx1Dqgps9sv.lAWQZDSNRAx3gJ.WQqNnc.6.Z623kS_FvkuW0Q1UwobQo4OU8ckqXeUxbq5_dt1SlD2vWuwyI0LB2G2Gci9ex5ivkX6yDZIgOluvQZi16TkT6WgmLSQauHff7NJifbUdVmg1t7chTm6xsluOGxC2C8pe.ADIDd.akArRNIM5pkJv2dRVQmpfxvNX2jarhmuxx4_UqJOiBDQ8D5jtdxmXnoljs78PlJC9KHpNY2KLgoBnyBc19M7GpjFkpOI79L553YKv_I87JiDZ_BK5AeDvtLpUOd4CGJmMyoSBj7yMp6C6yvj8zb56G5BiTKYVwGCvY3uDNPB72C4GZ.LDULzqzHvH0LSsv9bR49WVIv2O77E8QfwCChWKxJiebLx0CYUW8mSG2qSAgwY.fah3XakGiiy7PGKo0LKIbX_r0cLQ4_4KgoTbzXNHOCh0lSSq2VNtUOHyzLfYjBGAOdM_lpcy5oixvZtnL3UwsPRteY1sgzxirnVyFET26lhqUQcX.P4hCORcwwUtznulijloVpRNhD.RYg0TTt.v5xjKJUnYbVqqvVrVSM4BWJh4YZCIjtStgNQmZ_R.k8FFc9b3a6G.vbFFeY5ac5fZvMF1y292iDmjgGvQyKk_ycbqQjcLw5T_lcJ34o5ROv7WJZisH2nkFDqccGSp0iUqEjYnmWjPJ6RCv0QkzjxZUmA2W4B2xgRjjKWVeMx1qJyVH3ZnjTqf5B0Y8mraDQXHPeDlAz1ZeznL7UO4qjvUlVxJ1C4NKK8XLywaeObUbu6OelWl0rMcce0ZcGAhH3gGYrPqx480WCO6s40tCC_tMjs_mrF3xaIkW5aKFpqb6pfQFJk7iAaLbWdpWweWfZPp0e2MTNqipN.g.AN9zQwWqdP8ZOgjAfDXAfU3zKi0hRWMJE0ME6rhLJGmoAUXGOOcc7kqeUxwGPJ.zRZl8ahpFrGO4VkkX09rAkeSa2TWmjPaTFTUcpaFPjClTyX3FHW0vG458fn5DjsOU_.QoOgj2CmIL8iYbAA3cKVyMgg6RtVoIfvY.v2vmnrmSS376NBNR0O1v6Rh9yAgXerv2qeZyWzqp_vE3E5PAIhL4Wu6rBC4HfKCX_xtCMoamykv61605K23hsJz.xoCyhESVPfcHB5HYWAfKBhOlpqVsf56DVQ0OUZuB6eaWbEiLfrt470GTnhkUNyNmlsKjZmraPCHhWh1_tD3gTF2qNLvwK65zOMFwmupRWmz_F8GxUtsA87QBmWyNayePST4LiPWcJOGorN.sIdG3CwhcWDvv0aNJNa6yJ_E1DRD3FMqOT2lLy7RiqeIYMC7Et3sbhJMnvvlp3t.aFOQXMhXN9yW_veoEcVOpoksDgHa2R.Yo35mFX7apxnZcpvbhYJDGqMbqBsQuLN9J8BgM23TnKO90A7QsJ3oNdHkScmNVFm58oDLRI8m_Oop.gpYd_757HOZVj5LTW3USaJpAhgq_27bASpX6d5m4sRLWfVs9xfXcFLH28r.6MooUJl9jxfXEJXzOYKxd7uyOM53_rKa0hVFfNzUvLNU.jL.nwp57o118x6.dvOfpDYKLu5nJ1WzhArx7HAp1XiKjcLGrpuSzzc97HrqOljoHxDujpZJG2iV0KSaYo449T9u3yKuNle_E0i8kFHTFezDDjYu3AewTQQT5VTfEhnTt3fnXCaUaVm2N19CQn9iv5Oa4CEyFAOlE.6Vd1oj0HcGK0NaHbXL0VnukBzwcY2oRpEaEVpTb4ob9zDYgL7XXBgUN2Im7vFJkDoOnEvM.mB93MKl_TD4zNSUlIfQd0.MzvhMm6r4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb24abfc73580c';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\/7193462508?__cf_chl_rt_tk=3sL.0Q2RkEFkxqsyLEz.Tges62Yu2yv.bkKXzWZaykI-1739180484-1.0.1.1-KBGUhPKxUozu9th8YFiEAjltB4UJOE_4o74omCrc7R8" + 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