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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-559429306392.mit-edu.top",cType: 'managed',cRay: '90fcef420c0581ee',cH: '.BpUPsqhjalTj3MlxCYDI21y._zzXUowAnvActDtUFg-1739199268-1.2.1.1-DuFeqnHy.kTsS4rP2UQWHeaTv_xFNcmihGwOCzlRCYmx.fa4ny6UjQEA1luexi3n',cUPMDTk: "\/post\/9047321658?__cf_chl_tk=0iFNxmnSadhOC13qH3wNVvqbn7WPW9CvQCafzI8klaI-1739199268-1.0.1.1-yxu4a7kBwzQdVLMdYbkCr5fyDcQXV_DYi8VSs18wYEI",cFPWv: 'g',cITimeS: '1739199268',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9047321658?__cf_chl_f_tk=0iFNxmnSadhOC13qH3wNVvqbn7WPW9CvQCafzI8klaI-1739199268-1.0.1.1-yxu4a7kBwzQdVLMdYbkCr5fyDcQXV_DYi8VSs18wYEI",md: "YofB9rCY8N9pYOzRCJv_V5a23lrnrrisqPZ77O.HkSo-1739199268-1.2.1.1-LYVIEl22oi63S2snMKVpb61yhjZCfHY7J3wUALZiXXFNrayq8LCePZQlyTzkwXwrZ7g9GK8sbneRhxt8nsw7SQYLUUs9Rgng8eGl.jJzwEm375jbdsf2DATWBqo0F7EaQsK6VjvgRzImh7.2dxDdlYw7hicQW0g0HA187Agu_WRNPP7nOTOv5sB6fyyhPZ.p7sySs2qQS.JHVSUXe5l.G7Qjuu_9FyVYpOIMYGL7i6m.V71DTRunaRelE9nYlnO_ieqnUWpngBS4mu3l7GXua1B.ZqSITNC1vdM_GJtjaQbfgVGPMp_OYuxr2_gva_UtZRSPBJ4tfctOb1qOyWVNDjOmQACtDHJuWLaaIN.twK9.uCIJ3Egl_BBhdcS2dqvWeXUAFaUdr9076Ktat_g9kAUQl1V0zSZDevghhlOwc1EVULWAvRNpFQWCcthxtOc4VyfKUUAms23J8iuDYxsmveY7888Ayggwx4CKfKBhn08dc3mGHvocUzgIsk2l4tifQNT5iFZX6tIabOmiwZfd_8PRlX_.7N5gU.GBaf_h7NIQWYn2kQVYCo2IBHr4wAod09shPrUjFx1wFYaMwdy.OkayD4DqwBk16TfLLnTeOTHuJDLPmF8DDh_1fwcaxG7C.s5dTY_ShCbSu6KYwxtGA6YX0mBU3yzd91G7jM9NIyyDzllXPYWMXfMkGzE2r_jLknDisvophSwiynGbvzvZ7kGANitXSxAeD1Kjxa7BkTrx_tgNKi2TUraQ68nK4T1mgp2eYSoKWQYjRPZuUYZlIXdR5WMTMo6tq49OcAOvtXK69EPe.bn7y71n7zGZ__uCaPp0Y.1BEaV188mbE6y0Wa9MoE2LdMJjQKtYy_x1a7CCtqCnQ6gLpRs.Ym98tc0OJ120zh4yTOVYdZEs7G03QCsHJ7KRBcuG5GnnZzjqsOKD1eF97RZGojCgK_4DGTgs82mprO1sr0Jm4IPMVz8ufnNY0cVZ8mxIY3Gb9wjzW0eZV3vn5UhT_Xnnk9GiR1hmixDx42RvFv1r9xg6hlOz.bNYzlxkH2x14kADI2sk2oV.sE6dnJ4aCWAn9eeUrToWugGPLnIG4LUuReO3UiJ3i.QCe8oTtlm4oEfTGn4Q.uPqOBk1MN6jR8MHIS3TunA0MWa_5ny2SL6btayDrV_0rqHTVue2CM9Ijl1bOGnxiU_0txV3SJvVgCcj8VdJms6bfSf3QyxcE.rJN8bWkKZCtlgoeYzfCb3Ay0ZHwize1pxJa8WDxIiCSQBfQsyfI2pIfmrQpF3GpfNvcOGWksqBoQ_k3Sng.mzzksE.6gTX2QtQoObhu0uxRSHehAhbSH3bdaxd12k2vkmlhoTtP0Cb7hr60fsNe2dPWW_dTLBssZ.EGqPvxV9z4q0bzEbWFH5UKpwc7kFntNqbdYyCOEnlNj1ShlUxNArzbCXS8_rfsRrZOd.G_RSQFSuBQL.R9orwNbMeqsDBDT4Y1TAejGvdGYsfMZeAmxeYJ17rlI_d0lFCvmRudGFHs_MfHbdMQDnA5n8d7n06Mpkwm0oD7eBbhGMXK7xYLe1DQWoDeIpS_EKb6_FbtdNX1jdQnHXRdyWsWBR83R1HRMeP2yVfjAu47x5xOWt8j6uR5az9NHqTuJ.LsSRTk6TqhhKwRr0XBgLAnivptgew7cKlzJ9l0Q2ihROPM9CTkPnm7cXdcA9s_99j2QLmb0rHGsp6ekA46qFG2Pjr.rv9A6JGHE0RRx8cLGStXJS1.AHWZRCUJL0a_wFZphGhLyCMZG4oNFILyzGoLbb8RSgsmKjW_rMkF1QgKI105fPdAD.IdlK4FgsEmpxgA5BtkUYWzeqBwbLNZ9WKF7Zk8s0J1ws7mqVtBJp8AsQ9M_BneUot4TfRjWpNSPnfmDVA5bWmMt.r_ESC2hZgCIDM_fymnbBKZ3GA5XM1DXORplcnwo68Ru8Hp.vbrVlegBdOofbDNei8aV.5AwFGl.s17vVf7DYo3cBEEA93iOmsvuUaPj9lPiexrawDEjw0TOxKrCmItys.i63PJmTYw3BB6C.vaBFLLVqzQFMZZs9WvAkPt1XSru0xmkO4Eg_UWGn.xAhu0xs51pIjh_EDNL0Zq0E7NpnDWGL7aBn4kK9aX.beytT0Pwdr0ZjLIyq6DBC9DnSDDGDt1sy8zNWo_2DztkEza1jLLVVEnG3Kp1ZC3lQRtMd2RAWYQujRca8a8F_m0t5u0V1U9egYJpIN",mdrd: "pi0YKm7pvbYSv.hjepuQ7s4ZZRd2jPYJ2TMpU9XRPkg-1739199268-1.2.1.1-aRbIc325D01Lrf0UOLacgPg94dH4PY.neOvdOKMlAx4kTReI.sKLav6mAWfr6qyLcaEGutQ50iGUJ4NzKFaQZrZCOpUQziGWGUDvnzFNh5J0hBqMZNN12C7bukzR10.Y50Y7dmRqpeFxqH34l6.izG7McTgkg6QV02g9LAutmTXDbBI55DKqnisfjyrRew_768zZxCHEmjugXEZmLUoiKpYJybn.TerRo8ByEics8sQxmhRPk9kLgG06kjJQPxsWi3NgwgBj_HHHaPQW8KIIhAuLpxI6x8p57OTpjDeqvapkoO0QDesPBORgbBUOZIgbmZqqTrXwfF018MzBcNx_43ohjVHsQmwreWTxlQBIACCTiUiFhQ5ipQsxel22BHPFS45flmvkOpb2xHPaMn0osBGWJ0GFI8FLbP4EcqhBDddz_xgDYeV478t8f6PQsNouP9SEoAVMcYCY57T7KkzWey4Cz2ti_GK2613t8B9M_MP9Ixykz58Nky2TiOs4K6.weHc0.6fy7Da_NNpNo9zqBQ_t0lLz4oBj2x7yqf27DvUgNXCNjSkzaT90D9Sgorud7RuUI.k1HzvW1SqILZru2jZAVHvBYHlYnHg9N0yz6ful6.qXrtssCEUwBvA_QxerY_tIJG1nEA.Y7Jg0oqkPGqPmA59KVHW6ClZcLK5Orh2bNrkQuucWcA7fqdOJuf2Iuqnx4sUTcTXxTaDpcqJWTMyYJI6_8_bM7Xc5zPhQFA8vjCTjNlZjCdxiZIrChaRi7gGnVr1rT.SB0nPR_jJrKLvr_rGgeZwnnIghCqOWDd68rNzU8Aojknev.Ox9Cg23yHPl16sXioUaG5qV6ex5cKKgNcIpNRph40Cz.b69C79S79Lp_KYRby6TIoe7BV4aeZ7PEZypbYf5mgozhTp5tMZgAYlvqDtzwTHMTx8ltUEe2.dag5xGsaMr1SoKmzD2sGhKUkOPUVnVnLDvkEczeFQ8OquFaLhw4DmhDleuPPC1zLqzguoJD.oWVRpgqtdcQxyKehgHF4OsLmg2dMFrD4HH5lwCTIX6lewvUdJwnWejxNorvvMcGD_Td7If9G_zALWYD_RSK9HPmHc73Hg2uLJUoUNBbiWU5tWMrGiWmnxoa5__LTI2LwPdWJCDTJVm0uyVPNTa756fvoUzspat4v4SIq1VKey.jwT.speKls8MrATQxisxVwIPIjgx8XKl.bbCSUVHCKeb3WGB5esKxgl6KFnaWBthGZ5Ya8MCcmcvDhUP1BM9fZTDxT4VGNGICMv.06IvkcC5IXW3iCudpt_4iL8Omwho20opvG2k5kRDpd0DqHSBvbXFKp_cMIdHkZNewaAlIVb1k2RDeWHdiCOLOWsnu5bT0EEAybxF_OczuBywFiNbJmxquQSQHAdoYOAX_tSzk5uw9yuLitynEdFVTaPSxdC4p66X3nvh9mrs.XuiDTes5TcaIepg8nvlwLHAgax9rqo3rbg8iwpg6HCqh.ktU9cJ.OC9eu1WcJp6ql1ndetMRDtEC8vYltGAPvZ0EIXV21IHYqxr_lwHgRqq0A7Ks0Tr5SoWig5SzB19r17Go92v7r1UbipYaErfKbopLQqfq6p5vVO36l92vUvQtOF9xP1j4YhFBzTtShh_sEyOK67qJpOUMCiz0JYm_j9e589VaBE8lsnRt1iKUku1YF1Z9VPx4yv8bPxImjel6ajyZSp1_VDg2QJF5TazKBjy3wVvkywWV2Dd84bJxC5E2s.UbIm7pta8E1sez_yAF6Zk_TkBLNnn0kIFXR68IYoM7GgVuRqsuRr8nR8ZKw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcef420c0581ee';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\/9047321658?__cf_chl_rt_tk=0iFNxmnSadhOC13qH3wNVvqbn7WPW9CvQCafzI8klaI-1739199268-1.0.1.1-yxu4a7kBwzQdVLMdYbkCr5fyDcQXV_DYi8VSs18wYEI" + 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