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-793679404270.mit-edu.top",cType: 'managed',cRay: '90f3af57d97e0627',cH: 'Ok8DGMN3GtebGl_IF8ypSaGugPKYdkRguuXteLV_0nw-1739102278-1.2.1.1-3AeQ9X33HaT0B1q4_fduJrlHJmuurjWjyUZLZHGvXuUIySys7kyfhOsmhIihd9NF',cUPMDTk: "\/post\/2439817056?__cf_chl_tk=a8E0Cc.1mQtNsyGfTZzzEGfqq4F7dFv_3rjxsOTE_3s-1739102278-1.0.1.1-0GaL4X_RDAO5Mh1AaEozOkkkYT2Rmhv0p4lcXwFvt1k",cFPWv: 'g',cITimeS: '1739102278',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2439817056?__cf_chl_f_tk=a8E0Cc.1mQtNsyGfTZzzEGfqq4F7dFv_3rjxsOTE_3s-1739102278-1.0.1.1-0GaL4X_RDAO5Mh1AaEozOkkkYT2Rmhv0p4lcXwFvt1k",md: "AKLROuI0E6IPIwNA0NOhh1OxHSI6Jpa_2uUktyFFm.I-1739102278-1.2.1.1-FuvjOQZtVI6lWUiZGWLMC9GPVi0dLRQyjA_8vAdrrTqwQf.Cg9CXjgXlZnxMUBE9L9f3UDoR2E64afU2.7KReWxPgL9I_8p6LeVC7bxTsl95NgGAPYXeoSSjqbdmpRxxLu9abKmtS4SVgMYKTRRS378lSC_gvFBkwDyRpy8D6MQ5eR3z929zyk6QsTg7b3MJR7MwcTPuD1mKJnwQ_9Sc0kQ_HCcpBW.q4vRX7cw0ieQIoPVtlo3SxCWW03U3.QOY_Qf5V97bC3I4n81dyojSkq1v8hRkwG7KPrHZUcwKZMtNrrFnHSRTTP4IVfgvhyBMU0Imu6OUd8RHOaAApOwrOziJoAbWYcpJvYGv96arJlXSp6GT06pglnNmU9hc0P5XcCXbSRxyFJkBc4pwQk0qrL5pijXEEJUVVYqzN8GlAHg.mBHqqa55PuMhEerb8iNoiwXhh_qIC51k3gYQFJbmtqkyxzF1xn8oYqIHYTXko2H26KOZWnTtTwQwtrKgL.4LZwojRCG1Sx1de9IFbe7Ttc4GFRZevL8sKjRv7_XC5ai2GhDHJiNmnIcxy1Q9rfDvkCdPOiG2o1NbpzMR3uPLMDdBUP06e51tORxkKbefdwpmFLpWMnRPpGum6l44_BODZC_u78ZOUI29V4gyXq7MwuJzf1MZRjGY6wi5CIOxUEHVRmJCO_lX_jjWgApPX5dPFXxvlTzcEyAwV5M_o1mqPPSb1gnUYbhQKZjXGtFuLfQ9WcI.Awb57ojRKaDc2wGAjf5RySMDdkkaSyalUBpQyxailoESQcYBHNQ3MSEoeMrpKXH8dV6ef1Z0CmopK6uEJkKiBJcKzcAG2SZBWv8AcbkCFKEShk_dJSHDqBAdI3QxzIAup8BEy_i3YYT6cZHwF2jRyckFHy0JAnVt4fftYiu3wMT.mFvCG5yaGktZT985qZLgPmwWOG1AS655owjvNi_sAL0MXooBMqIaKSbFz.sRyj9Y4fEAzAT4MxwnWykPuUa6z5LtoI0OSVdQHl_br4mIjvQYcVIZLEv9mgW9D47uB2uhfT9w8H8kQJHwbspwQxG4pIfCWSUzfolwKX1aryDauyUnzf8V1geUTrqyIH7VWiNsNOj395snZo.0xjntbavaa8yf_smUkUmkrTTcD7ZDLf_hJNRRB1jg46a6yXRYweHFD0kGxmtSO6fRxSSLnxC3wPizggemeR0ZX.lykiyOEp_2TLLbR5yWIsA53_5.dm2RffmX1ExjDk_0iS.kbKaqlQsHoZrcCCAvQLIoIrFcdie9WmkHkENJbkdtH9Nf1z48rLvlHNMSmW27mcFD0Itp.IlAugHJouCpCDsBJL7uDcXaDuNHE7FNR7HQ651giRn9f7PYzSw3Guv2B1ErAQECmRxBUUejkqM0kbbxNo97iLWiPEV7rlvTjgh9anhw4I_lsSRwZZxpEE.dSfloG18t6.tnzm_Xy7QQT429k2SYLVSUYlBOOV4f84kI6fzqwbbQzUwLCRh426fi5Fd4pVpROHd4cjWliuzFuQyvBqvoCR3UYPC64m_HmKBZyZ3ajJE6Y1PwZukfXXXfzviEq6Rg0QV9keCutvRDEaH.gNTfIxjw5jffDsRnXp0TpqAnq_fr7Ye7KtdbKvSwCJbjn9MEwlf8iNUezW6F46RkzwBy3_dtNzamyo.2SgMVSLj1zkok0qp0jROc9hCby7ZQntP6kf7riYfSyyFBTlb5FOyX7syujbXqBkhT6q0G5GmRspy1ddGIUReby.t4VbNBuHQayQ1AWVeiKabvpfHxeydYH7zVwE68CwjdCLHNAtE.IbMTm.If_NnpcdUYV86kBYtTAr3tzXaSvS_mLucd5jC91.FSYZeX1IO_dRTGpe2j1PeZZuX1qX1BPYss7FVnrDg6UilZty3dgkezZ6q9buyxOJVyd1omDYaYEILwQ6iwVuiIIqR2ru3WvYCXU4wkIyxgBoHmbQJAmH9e.x9rmCLRHzRs9jExqI.2FxIdwiVT4Av4UvzrubynfwNOcxCeFfzKZhARFoKJxdmDGtLKEPu_hgEICCMzL5t4hbxL3c21MPIWGFBxVA9jEDrUG4R33npgbe8zG3AGBYjhPexax2J9Uq0drDrJqKwODafkKLKQO2cvXd.Ip5uj9FRcbw8G406SnKFs1Ko0lOrJaxPtu0eLAT5.e5UxF4vb_S0ydtTcxhsMstlyGgGKqNXKoHo0L4z.i2fphswHT8zqqxyq",mdrd: "SSAphINMb92eCLtyca.mPxnBOxFJYVnHxPjtCeWxU.4-1739102278-1.2.1.1-fbHu_ODw82Mhpj7WFivEeGx1UH6kEu_cunSHI62UieqROYW9WsyvbG5IBmuEQYGn4O1BcBtmLU6w9JoEMaWn3awjfKNhgKlU6U3WwuYWnfLD31ZhLZjv.aV84OTldTSQ4NMT2ouEsklpWnFGdBvWFcrrGDC3pEwrpsEZLTSMDN9WfQZA1P6YtzQh1UR4sK3ykgI.WNq8umOPcKHuMhNETn8gxwSCatl.EWW01x5B7L5BpSJ9ZEaBS.Ijo.5Xtw281XNGtxxlqxgLDA2pWPafF6ftKeG9mFxvHiwqjT042giNk25SCoNZIxOqgelyW1Py94m7Dgx82XwQwiwCAhkf86U7odHp6sX.hjW8McgX_wgL5NJnL9YMfMzgpXiE1u_JVuQPVwMd9vRtcSCnzNtMeZ3f01lLJHT5jSpaS6Qor42Qr.Wer_RV94LSFrWx2AF7o4YhrBg062g5X9glNfKA7MD0wIq4JVShTK3SDrTm6CWbTgMwygZX89rUtZQDLqGY7EcC1hLPlfHsLFoDAdfOQORmSFBsj9Sa6yli2NjOwUun1CS.uo2Jy6Bcd_Wk.pf2njEbIPEwN09_CSo4Q8MfoyJEanUOLDDYhevxOmQ1ypbuot11aZo7Esc_pSngeif.Kh4mT4syKx1DYqcu032jg.5oQkoHtZ_4D1olfcFGBWTDUf0yfWHSH0sGN5frN1mv6jIuBXpm5Imj0wp5ILAzZYHLnGmBHZ2vQAktiIlutCNvVbBYBE9_Xk0FilmC.l8_KenqrWYLPsvTJVeCcU5yKQ5s8sq7z6SlRTKcKoPvguS3uKc.QnDDszOjfoKKcaUbrLicrtaAOD55i1QIbzLGwamhEzD3JnNasvmFbAsx7Y58hIyiJQGWlNBWvwBnbQZ99H_NSe0qyME192izVv7GLi7h6kAk95IOCPjsqlv2BrfDyaspLlZ0tITZFn9vIZvcoIAIljzr12MFPXjtOdz3Jjzc_ADy4hZjzwA_iDSJ.S5yLYYieOprQgmlesFOyjXmRP_QuLzUYUjftD7HK9xR5rU8hJLRIAagRuxb2cctKlg3Fws5cansghGV.Vsb3g8I5aheDD2n.rHYavE6aEp8Zb8MnmlIJt_AknX3h9EMZeUkJeJ88ShL1wl.LPGsvhE5zEWvq2X4ayXjd9HWas.Ty8byQTcn0xl7sb0oAJglThzMOLsbnwLf2s_.X.Gvi3DBpI6tlVXvx6c7Rmx4D32h7ZC5kRVozfmvWEG._vYISo4dOROVyMbz1rM9jGRNV.eZEozjn3VcQQG86_mv5dcXGY.IEG2bkmjb29eAOAkXvh0dIXG7Hvq0RA61vGAXqhHJh8pehT1mmdCcw3UxhZTUMyUTVeJtIiJ8NUGAfH1vnYWAEaPlMcAVlFHIHuPOgTeZYQ0gXJFo94xPLdQNkEzcPQ3PTNcCBUWBOjs7cA2.ZdXq_HjDquMUU1Nevwgg_ujetHhpYDOJR_fOYK7IxwbTTSx52GO56U6diLA.E5a7Qn8A7BZgSwVq78POTDp9Hiq_E3YpLLjS1Vp6fMFeZiRr46pVXIc8Wx8VpNWdbygNhERpLjigzt1xiUW2okuxkRCqTSCYshvMg8ePIPM6DFkUO5_TFIgSCcl7CP9bOpjd_Xjy3NXxA0lsJo2cYvPriiT2Hr.4oGjb66ZprZycYcObXT2Ig.Gccn_nlE6UPc9fItVETAl2mInsO4gC.ctoGnDGKsZHqvp2R4yxyz6AnoZSKAWNbkyd7RXxR06SiK0q_FioS_so5dMOqWqc1C3fZSLq349QIyXlUusFv5jnoVnNjQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3af57d97e0627';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\/2439817056?__cf_chl_rt_tk=a8E0Cc.1mQtNsyGfTZzzEGfqq4F7dFv_3rjxsOTE_3s-1739102278-1.0.1.1-0GaL4X_RDAO5Mh1AaEozOkkkYT2Rmhv0p4lcXwFvt1k" + 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