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-387898956292.mit-edu.top",cType: 'managed',cRay: '910658b27f9c05fe',cH: '2WEbKACOkXtf46UorebTWskX0Wsh3VkWWB7aXKlEf6g-1739297958-1.2.1.1-Ak95_.DfzCV4YVXfLqMreoCVHOGMR89XOFOadqddd.DAxY3zGv0rAhM.oKuzAlV1',cUPMDTk: "\/post\/6951384027?__cf_chl_tk=J.OI7NiZaFXaKwVKGjiiq1x906aJLcc2zWXT.tWaq1k-1739297958-1.0.1.1-oxyRAmYTYIKGRmYllmRT1m8DLoEnrBOj3pDtsekWQ.I",cFPWv: 'g',cITimeS: '1739297958',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6951384027?__cf_chl_f_tk=J.OI7NiZaFXaKwVKGjiiq1x906aJLcc2zWXT.tWaq1k-1739297958-1.0.1.1-oxyRAmYTYIKGRmYllmRT1m8DLoEnrBOj3pDtsekWQ.I",md: "U9hFVJc_udIeCZKM6ud.BszczxXy.BZDEkp0grkqq_4-1739297958-1.2.1.1-aZiTAHPlvcFxWSxXpqRjfDoU1N4WENdEtZEXf0b_0w0hzUPMztQOO7EdI8uT4O_RLwDK8rWiOdg2BoqIrzjqlu.gXHA1Bp1rEL26.T0zSyqxqLKP_qOMF8IY2h2apRsl1bou4juqGGrUL5oEqeyLqwBtOx.F53KrDnPugFHeNqYZZA1slXrUQq1intlGl2v5erZHHTf28AHmjzQYp5o78MOS5F2uJvCwmQ46OBGONLZMxPP2WqvkhNHTG75_p.qLNiDMnDDmGh_F64CFyzEYeMZesLmy6R.LCrqSyMPAwefSX9PhX07LucqLToVdDDdNoJXlNrk8CZfxhVafBSScNNGVsLg3QYoLqI0ZCPDntgZBvu9jqytIyfTm2mCmtMv_xAysS6YC1rPrdLGtN5xb5vWQENSwhz4v8jciE5z5_R8DglxRjY5lpH6tkyLNnH9Q5L.drOaxNSNo3hHrBXDzeNyueyTaTULwcjUYTarAaWnWXSbLgHVqV8c56vm6t9gUskNAv0zPGH._dEowzag8Qgxj7hJM_WFtQO.EvFx362IFuTwnvOM2np50jXy01eBAXDX2kUIkUS.Z_1hZUp0syX4Meeacw6t2YNyRdSpFKAjikY_VDwVLVDTlr.nBJbHGRrzlr2eKRcJaS7b1rxEqopdtm75KJ5ZmaT8LGD9oTpfIdh0DRXgUHnh5vkI08m8nMUapHqNTU4oFi_AbqSl6UvRAHSutO_.vI2qm8dQkBP6Nq06Gq8155M9948vEZQbqGvmZxpY2e91X9TlbwrVasWhxb9Up_deiAbRq2VBRuvrMn.gAh7KiUpNPchEgcylX9rHtD_hyxACo6KpxbwKR7ORMdMVpVm9i1FFpvLCq7UY6C8WNmeA8dAVuzpER.GkbIkEleWD7ywFiZjMwZtwlDWyD3HO8S85Dos_3cH.N9ordiYUOFNfPSuxKs4HtehceSZWI4e6viAgD5ehUP.nliK_JH.UDwJmvQ3dKC1P9godRIYR6jbmAr1EZiofXalXc4c0Albww9fiQ9AzMTHatmuCYWMU9l.CoJaqLAZDclTpykGdO9TeexSkL2PPAzczfjLzx.EePM9.RD0u9S5JAliu_aVY3ahSSik8rb4SfykchtUXCr36eNMa5P9Num9xxcm1DQWQ252RbR5bzNdILEU6jvfa5g0IFqBpsiG26w.GKNEjGRHLMilkd.rKqQ7kpqgsy6zRK9EEbzqyx3gT1vtxQRQ4J_m94JBILp1BeA8KIfb8ledSDUYeh9TMll1YfXo07ozl4jhI6SDjWyKT87M4fG9wMVUWbiellfXAdrj5aPjnrsWpwyMj_XPWgK_PbIy1qQmCKQly6BqhxKMrWB1nBNW8yCh0heFukLODgZOBsv5wqKQapsmDwzbNRxKOHLyaymMIKnMtGtsc_eS.RiAWPFL_vnUvY8GOuM_KPl0igLFpu5hPU0lNwTJxWKa_XcF7w1g5YylD7f6RDzlATo18LYSmmR09YIlCj0IFz0PcMH.ANXqtg8DWD1_5b2u0WGxAp5K2U3J8uKCDTR7Uott.YAc2CIAQ6x.A9vBkRuQXKoezKadq3TjzamMeqObQU8u4MtMAvYCoL590vvbSx97JzYTH8C5uMdugh3lMzMswqechmmlMEvnwx3vXdkZdVwMxcBsfKxRABoL.kPLd6UW.p4UbvE6HOynvJKIsjMGlDVUMsYY0LKF6KMEFW2PZJ7ZwO2mHPQ2JFOW1cydK9i1Y3x9IjjSz4o91Tji.v8PwVlwfmESDpz39eUdzkhkY8uVPS2W6MFjq78dZLHIHxiebu1soQiHAEWhYuWlvBjQN9cNCXrk.edVi6I3TamgtmyYaSY7.YbafK81LMJ2eR0tNGZtWK.uiQ.91KZfdr8nlja85YzBiZCnYfpbTK2QXo4rTl84WhpcfQd8z2uL.AQcD_uUa_p.Bt5vx74N2I5MdwMaAQhiEm8mByjSg32nBKxFeebZecCWiJJzi9NJodjAhMlrF3DGqmLTIHBc0SieE3lZVMT3EUE5FkvMpz__sWzffVy10Nbqv0E_hDUBMPSgy_tOOZpvqjqrnirh9xsW_6UeLbFb29vb.z9ak2j2en2fgSjtYXsfetnQHclrC59N3_OhLs7zu2NbJQr6_EfdK2o_ObM4GugGkWJVtc_DCl.uN4QWWbCyUtCXkTf88dynQ8dbdTuaK9ZI0WzXnzGCXyfQTDrhirDsoBQqBA8gjg",mdrd: "ncaBSQqj81lPhCOk9NxK82JJ755NZyTZq42Y4DWX2lQ-1739297958-1.2.1.1-HS8bYL78l5oE5pQAqw2VwK3lkjDizbsPStkPZaVAIWT9XMek7OGWlvz7p_cdlpfL63n.LfMoZosNHKsAWRpkyuN4c2lsWsH5QIRKw9NLsk7HsTIudlLD_zjakzEc7wu9xXqAfqlAZemTm9fbjMor96gIUDqmZ.qYyBZNU.lxsDdxSnNq183dOhaorMDFsjH9Pm9H43FPAR429eWaH_Nw.YNbgO_862KAfo3P_LZ.fNMw8Xil.JG3lPzTpnxD9IQTNw0AHaSFyPoScr43rEh81aAU1l4NGUoOjmTq1pXZFgNIA4o4ivdI47mGfr9CHDAC26bPefTYy6FWoPFegLR_HoIFvXfrbX8FiDkqkjoeweBIalNqvT3mJaJYeJkunx7RHB02QTbFxUy6vL6NRYvaZUrX5JS7HmLoB3BnXURY557hjtaiyjj8oV8CAV5.XJcuR1dPoYV7sgooU0fkCr2MZen2al83b524glsi6wx48tjkAHSVZtthYM5cGl9WmrcTelfWj69QhU.sfZcE5enDQkHmpEBuZWJMTZiPlzm0tCllFgc7a7Y.oA2VblOUo8KxhrrKaSHq_LFCJ7Ytt0wxw7g0OAH3BWylWLbICu3zAPkZ0rPXH4CgMoTixCBR1tF0SthN4qw_S.CgklZk50y3L4qQmgPp88irfTt.q7xW6d_w36woLCe.Uernh5OhQWXqLfBlwlw5lmcyaR0hv.Uel7OUk9UDZWD5QX1GF7n.SiTaQD2GtSJ9Ar0E1M9URWu2i.r40QGeXDOosYoVEeA__83gRTCCIgMmOKPRHEoOwVh7eTps8JY2t.uxNJFAUDTmOGYz4BupDB.9aKCzt5hBFa9a4KpUNHlymOA4NYs5pwf8ak7BkzMhR4sUeS3V55BUZyJjB0NA3bY6yWfQKGM424XkxT4Oo2AxtplRKwu4Cw6orflWs30khgFKcJgVuB568ib.jwzkCmmTC4KxTivzGLb00__xk40Wt.oFx6tokPeaS4EvrwVuezG_tU37J.GmIOICos08pcyZT5nOFlhIcTBq.wYgL5.rXDt5zxZwpMnUZjJUwgoOzARKlo4FB.4JMnypp89nZMy5Ia0wN9gQ3ukWKNDDRj_vsGIeobBm2LAiOO69ktLqL35GgshmQZuAbHNHxJfZcKLC.bJ20NhFq7jptuy01a92jTTbiUP6.VFwtaVGrL5qAiPCP520deyk3JDAvCOSFaLASHe8M6cM.P10S0k1KmHk2qoHO4TisRQMW8_bb_4tVuJameDKtSNeuTBs5fvs88IP5dUyh8h8NjdkzSp87EKzYtnGotEBEZO_tf_T9b1sGmxZPrrvlUoeYVGytfNZ5Fo4RI.9seRI.OBh1x5uImJjxdo.gKzMUN8XUbt1g36UhbJQJeaO1ctc4L7aAtL.sez8Etye.CDsvUXLRNRN8Oi_FlreN_HGEpD26ciN6NVMUjKiyJLSGRgODn6iaYQtSjH6dy3MX8h5oUvNwYTRqUGufEK1atxR.ICGtmRitchAjesGUuPeM3U_VDtgibUCHBNn9SfLb0fspT32hh1qOVd3PFdATaeVfH5_RoiF9FbDFMzMMNTNseMRTD.MV7RREkgfbwz_zVsF93TCCHMs0xLFE_AssFU6ddKu_eDuC3tLSc0n263aKMPGqXpK.FNrKRrGe1mNewNmL3jBLsj1PfnVewaAgZgexmGHAtZCa4k_ERu3XDWQScG0cOwrG.2sv6EdBA6qmPHiJ9bGKwHnu9BJaFnmfzJNzoRDwaGIHl2D_E.OEV6J2MrbyjuP22ZMRipVVpeClRLjlQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=910658b27f9c05fe';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\/6951384027?__cf_chl_rt_tk=J.OI7NiZaFXaKwVKGjiiq1x906aJLcc2zWXT.tWaq1k-1739297958-1.0.1.1-oxyRAmYTYIKGRmYllmRT1m8DLoEnrBOj3pDtsekWQ.I" + 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
