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="360"></head><body><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-425040904744.mit-edu.top",cType: 'managed',cRay: '94ad07f5be19080e',cH: 'Hch3t8N6gW.OzWbPewneGLyS8sHHiFH_TuiHmQQJ1gg-1749098837-1.2.1.1-6tNuj626lCjEmWYZnVb6jAEe2WSG0mouJ.Pe4XbeeUb_ZX7_JN4Xp27NrHYzkd2f',cUPMDTk: "\/post\/5031467892?__cf_chl_tk=XbKRYJVwUB_eeu7IfeeJG7QB6vlkfsX1C8DBt1jpNSk-1749098837-1.0.1.1-tTeNCQJl4UtZqTyonlzKk3UWg52sJ_0N41YusWvV0qI",cFPWv: 'b',cITimeS: '1749098837',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/5031467892?__cf_chl_f_tk=XbKRYJVwUB_eeu7IfeeJG7QB6vlkfsX1C8DBt1jpNSk-1749098837-1.0.1.1-tTeNCQJl4UtZqTyonlzKk3UWg52sJ_0N41YusWvV0qI",md: "qwfBt5XXVEqnK0A.QcPsYZT4nQs77n3PAcg1HBhcBaA-1749098837-1.2.1.1-OCoT7OO8OfBGagaempYA0hnYxAe_SKh0JUFCgLypOuZVqYOJVu6TvfrVM6y.bTEXZY1GRR_X3ycb6OXZJqDfat2ziJY9kli4SY1VPDdk4msCIG0IObUQdAOl_QNNSntwbLgHGX7uE_nOaH9Z7qkAAawI98SuG0iFe95w2bN8FQky.z.jkrkd80h_nfO7SVsyzLUOKyXGXdASpZEtviBvF0G0GDh0GoLSxvGomz_BLyju20QUZ5UlKs6YbAEt5M.nJZQdJO32AqNtux2WRnvvnFb3RHk28yAs4WAMLh5w5T3u7jkxgitEf5UJESg1Ql5Z6f3QcFjiL_81_EdOCDtJpT4GPkTy80OYw8uOTjiJHNcnYvyU4zNTPnRLJxpnveSLv3aJVI3UFB1HB1STMkeQYkP9hsQ93C8W9jNO.Xx_Fgg676eTj9vPYWjOn5cApKHq8y2uicEp1hfx3cl9LCgzja_VcT.49tOCdMhIGOh8N7iWuf2rg1SbgE6nxZFfLeSXqvguvz3Db1rnMprRWovUXPjUS8wFheiSxB09fHhmKO_th4o5f4bMX25_BWWEqYriKSmzy5y.SO_SAiv.yWItJiCnDUZiT1tseDJvOHZS7cVDkn6zzNxqs7QOF0CYAHjWxnKRXOUmwuy_Xuhemms9ojbFLHGt3JIQjOys8g4hkqt09W6SRqgCL02.B3DZyIZy25fPA2DhXIPCXQrW.TRbDTsJT285WFTQYN.lGJDhSeQZ66_wYQBl8q8XKpLi9yLwvZvJeblxioY5KDmxYOJyXR74iAshyjJjHmqIQfGh6nvkllPdXnj1emVNa9z6DlMqjz29BU8XevoWNqCRKwYzdg",mdrd: "7e5X5lJZzB7zQyHR6PSUNBoc2v9piYnffywkKVG2CQ0-1749098837-1.2.1.1-jjvdoMBB10o9aOHoNLf8eU0KlHLTPn9Uvuo8UfquYo_6O1sfQUsBqjmgE8t09bjY7UmyVMmrKlnCLU7xWPb71v3Gj640AQW7txSyhUN9dYZXYOfNhJLlyxWAdY0zFD5x8u8cgDKFMfemTuB5yfZRmJCCponosccfHB4FWz1dgjs.5eaKmBxSx1wMf5oa1nFwEY4shymYsvWSJNduwrAFD9_is8SAGnxBxZxeKD_tsS.xsDPH0OBQxyLpo25gW2Uqe5qRBKII_Ne7TInZRokVN9JErwMJ9SD.etqpLzi7wyjiMhHGHKhvQO1KfbSEt9j7PFBkRqSqZiu4jniqqAQypfbmKIVPO_UuV.vljWVBeP_5n9o9MN3rrR08zwAdEq5ke4Ni3bV.LT0VdFbDDWvHAYfIYLPooEVoWWs3XoZ7Vg1f.dYYi0QeeLz_EB2IwEl29TdnwTJczd8lHzE0eYxrh0QgDV5F1x1z9o6YSqSWLtolrQomjQ4oDdKbY5qC5be.H_k4UPMbQau.KaANuaPt9OmFh1Y5T1K_VWoNI2V4gsINLtPZJNU9xqDU7dDeSvfWAtIxQ29PMKWivGeC5CzhuGUHsUs2AVJNVCIJLUGJs_ElQE7Bh3C89aI.Kn9MzlPZO271BMKsq8SGu0gL5Qme1wRQoIirMrqhKHNsn7YF3slvuZoyYii4lqKFoLH47oVRdXdQKX6enPNn2PRk51l8XliS_pT4ygLwoAlL4u9zskPBlZlyCNeVL1t5hzLl5IP3Qq.gNEyirG8uwUtUUxxmknYErFvmfAjbmBJEDPdQeSYdWs1yZbOaTAysBPxXnWZS6QUf3GhgQGj8j2Wez3BgYzfDkDYWEFzUQDCJ_eO4k9YFLtghAG0MFap5AoIHYeDtqUC37Bc2oFOGOJvCAdAAjyigCN0yfbtvibRvb6cMS8NNKkIlHe4v825TQ5a5tZYmsPNWp_lVtjFszk7Vh070cvhO5nk2I0RCBYmTvZgjQfCf8jjX19a9GE3g0PDOO7uK4XCOCj9Z3jKcVSecRxRBBg9vFFyT0Kasw6.kA4LSlYK0S_AsQh6D1KTV8FR6hYtFGiFHJMby7gZ46IylHHaScuBRVx1GW45QQHM4ZXDbeqeY0kyCL44ePvcl9ochYBdWd.IGbP8gLZSnnBexrU68JByi5I5aDSr2wrP.ox.hmNUdd4VTRdSQAtYlM5xKsfCa_W079epllL.yesJJMIkblWOORCcpgdzNzIdCSeuZn8n1AQGspk_jo5J7W9V6DQ0ZuOZBgq2Qegsa5TYSEm2i0TNtjG5YiGlPHjOWqlJWmLhpb0k.30ME_COtjWwanvL1yqK.En1WI52M5jl8EjXwluCZxTt48Uey09RFtl7CCmznNst7_HCHGG8JV3HsMvQMvPbj0bz3xWtipQZjzNFy1s6mEZNTNfVLH7jFWdiRQyLQGl_2ka_dxr0K7h9xWcT4IjZyqjGNSP6Yb1lfEuAJHhmQHJ7udvG9CtwYvaMC379SoJ4jm1AWSQ.JLOxPtpjOQEc0iQoubYQQfWZMA.CwqI93.x6bBkVytbhfqFXUkjpc9TVOuPj_zSxxIKYRMmePkCYHzeT9FhGP9AvJB4c2y11VxuyuIsIbjRG7vqLH8jaZur1XOaucUva3.rbHlEFR_DA1rKKHiq.dnL35Xj1DFgQ1Bt2DRz7zd_RsC5TyKcZm4MSWyqwVJH.VzMxZa..ou1iGYBS9CF2IzkSfXlbAbCzMgYkld9RwMUpQKd_aVwdVKc31BuAN3u1N8DOp34xOorFoQJ2WsUpHNmy6QtHJqPraD4HweqqViWs8xGBEAYfik72pIPS2kT2xUNQynOrAvpxjs9s.czQFe7NCDRowwnUhVz8tr8lUs_f.dMkKn64"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=94ad07f5be19080e';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\/5031467892?__cf_chl_rt_tk=XbKRYJVwUB_eeu7IfeeJG7QB6vlkfsX1C8DBt1jpNSk-1749098837-1.0.1.1-tTeNCQJl4UtZqTyonlzKk3UWg52sJ_0N41YusWvV0qI" + 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
