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-142730328052.mit-edu.top",cType: 'managed',cRay: '90f835d6ef7356c2',cH: 'tkqIdtqX.Y9J8FZJtCn3xzc.3gyA3lcCpJb5qDLBDOs-1739149730-1.2.1.1-vQiBkc9sgbWARzadWC7eI0yhLothFWo4qd8.5mD.ajtALdOBS4v1kenczWv8we0g',cUPMDTk: "\/post\/8106975243?__cf_chl_tk=foTR8eAEuEt13RW4FIJJviupaSej_caHMNA_MF.9saY-1739149730-1.0.1.1-Lvb8Z.Nj2F5H_oPBdHHDJswJiWmjvxxSE1u78mLeAkk",cFPWv: 'g',cITimeS: '1739149730',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8106975243?__cf_chl_f_tk=foTR8eAEuEt13RW4FIJJviupaSej_caHMNA_MF.9saY-1739149730-1.0.1.1-Lvb8Z.Nj2F5H_oPBdHHDJswJiWmjvxxSE1u78mLeAkk",md: "4v8fZJiClQAb6zeQVE5TmzTsnnvYFVPBBsm5Aa_rhi0-1739149730-1.2.1.1-yXKjvbXJEaHBfOvkXgSicIiBbxCouLmR4s5TEFVEdDBsSASrTM7s6peTCXkqV5oscQfpndfnVfrhrI8dMMp0PLNlIFkMEC2DAhrEPdUZmRcdXbsa6f481VZ3Q72ycY2OBCER4jO6W_TDySzdZMqBBjN8P1fKFnGXjfHf6TNeMTP0c1varXigywOS4ICCgcYpwwEam1aBiY8Lp3sU4WLvuw9VQgO_qdtSQAzajT_uLdCApjJtmVxXi1tZRDxHbtxEqzxJgI59sqTRMA2QxwngErcNWCcmU6H3EGYH_KpSZqLQc9mimC8ceNa5dL3m7AD0KsG.aNq1CcCFg0CnB0j3Iy69w.5cw2MTPaP7hEieZSxnn3LwZsf5rtVH9n7zOk2G8s7_5KKAZeAMSaQ2uLVtigg4syNIjltSb83HQmqE8KNdwmrT7J3Hq5_7ib7lnT7aVAPG1K0BkeDA0nsmzMjjtiIqqh.7ZatDHOyInAGXcFfy7E55bGu8FpxECdYXdMbcCCYfxJ.cOLEncMkRcPGun7zk9Iwu3UxBX7KG3Vxh6Bx39kz4tRzt13zJE8BOlcfu4d8vd8z_2Je6Ct.aYREQ3oUkVlOlmaCxEusIktROUiYA.KMjgA1DccHXkx792nQnbiz9KLTpcPTHLl1GRXX2zizUkH3_GebvhjLEKKChHatxfjuvnKIlYVh8uvB.WRFR5AQPE1NDjDLlMT0geCcFakTFweDtXwZnol6uLyBqTx4JOVlFCQmeXCB82pMUj5HurmNF1VHREACkA3q8BkBZwCxlIq3qjqtUW6upKjmSgiP4PpDIEARYFlSby.T_j1xDaSFJia3z1Ct5iT7nEIdVV.YtRuz8XEP1GE5UZOGXMb5OJk_mdPq7cJhkMHZcS0f0PaAXare5nz2V2YesnOFistdp8ppiULMmoiONSs3Scps_MmIcBPpgl8d8nFzXDG7oa28DUU1Ynejj9gi3jpayIjH1L9S76xhGVD5zRf2Y7VDowBQwPvUXbgIdW.bWAQrQ2xZaCnKd2k0fZ20076mj9kpQM7nD66fCFOaktfdoIilxDitiilOOP06Zu5t5qn2_39y4Gg2O6vuG0StShm4esjEf2uf.LHosJZusri2haco9Cz5TGfun6.F0TxSwK2_pWAXPoi8us7DAQUwRcoIkrork7Ddeuwbxxw8Lcdh7nuN00A9VxLdtRAcvQAI4fZGcTz.xVndH_q7DsikRUsQFGRKRJ6ooTKipiHLUBMkxoexW9QCaYKAd9Bk4X6SuTABvtyU689F.FRJTZIaykY7l.JaIc5cEMEfc5JF8lIjI5UJHsk4kMEg4y4kEZmwM5tiX6p4Mpx78PpoGkPn_4IYNG0fLmqHlK2yOFBOMKTHclH4mxfjtsq98hkHzct8L5UJFqHwN2bRXmeK1ewSa28iWS6ABHV.sjykiKVwFkZpX5Nf899C5TH0SuanQLTgGdGN2u7N3kVPJT1Ga0EgMb0qPMMpK78KUEL2UeYEI57d6qe8zoZo1UCvttbZHmcthfxRYQ_vVv5dJvXnyEnjm9g9mWuRcBz8C49.cjYnbsfCkphOmXkNVQJX_raKWqfnq857QNdOf2nDoKeUkceNngUfnDOxwiJJuw94LEYh88pWxwtXhAIYfxgZHNzAMk8gFrtWwKvGiBEZ.ZxjWesehZotFLh26frq88Q.bVWkNUApCOqK_eDA4EsCIYdQy4mGEJGlxRV4o5OjjeO73eu2pDrmLgD5m4WA4jW75.mHZROYkJqMoc.ZIO0DA7yS_XqdIM9.lt.Dzom9S6qk5FeELTdv7zh6S9USnIUC5yjBSbMTWatm15WJ9ewKfRCxhZ.h1XhOfpWwqpIoqAgWq9FCP_JNQTvgckK.OloMiNKq.4Jl8Ufw_gh4upujFwmm3IleHn11dfI2353sB3W.rQABazXKcROxYaquhhssg6B8iTrtUmWAgfgRXKoeGiGovmZ1f40BoslqbTPR_U3XLVZfVq9Y3UgyhtdxAcgpyizn3s42TEuCEU.PkOUb8wojb0Vz7TFhExsQnL4OPtUxJCS_5TOABtrOKTGaQqQCw2WIvddGfzjkd_j0VtSq6QZXqyIA8Cv_QQ9woe3DA3AKg.qtYYRbK8jdt_hkGjg_6fJ61kdf7xHkV0cg45eu5seIH_NlagOH.dEzXOvSmAFSB2KpGfoLEb9.vedChsWqTcbLwtVeGWT_G2HFedIrS8LXV_2aotdSO",mdrd: "kdB9c8FuCR4BdtK0Oo7A78YNUId3o5olV5GoQdQ2bxE-1739149730-1.2.1.1-REbTAUqWwIEwbmLVY4eeieve61DEl6eFU8fm1GOpB.xSKX556pKAwRmf9K53MgUW9fQf_JZzh2AdhssuXGICPakaQJXQ.Pk9LsDvGrvwR_WsFYVFxwKsCks2lJJfYL157Jt1PNvfJqj4PDDB88BCtnW9XzryK75XqVmI3C7VU6haDCO5gWxmpXtfUXPfcqt5SZrTFsuSZ4TTy8.R823lzo4_DWr5BbCfzgMSUemPIaqZ.Lg3OeQ8uaDRaKcuwRenWb3fFQfcqRsY6cNaFa5_RlcOXhSX6fceu2z4cS9wbnP3isOSh9qK4RTBlOsLnfgY66wl4.APJJbd3uRiSxLZSC.MgUMtSKy5Cxtv4UNj37X2NaITt1zmzju4R6snqMNKd93Ce9De4nAvOq7A2ylckXwnAXkgl6ZLUT8AWCmfuMroXKDujdOdp.kAGKqo6nPZ.c7rHgdlCkpUisYuNenUZIepf8fKoEpUhAmqdYlPzNR9giFugiZXMIj8Lm8_DLhULXBeFaQb.Rj2a3wSnX28b8OUcJ9cgLlzaiu2ZyIIxMVgP1QAowL5q5x_Ryu6mKYjpeojnOIDc7apO3B7q2dGeT3dgAXmiQ4MRQDU441s4YUvmSqZLmKAPDQ7b3A75w65SCsxOnbTWMgghaxd61itOSAEZlt5NS49cbIX1OQK_1jKtU1NSbnnPtQIvf_FB63AxD_WkgKz98zareLztHLqBCJjguqfUGb6NGiNbdkPVRlk5sXhntDqZufF2.j_kgKeX3tgxvKCBoAgieU09fmNiZHloMlV8C_dRA_SJQT1RQsGCXaJFAqe5DPOxY4Ii1Cg_LB1SgDg.fvgKabHhWUUGNCg9aYwtFQja49YLUXmZpReSOjE_8twbDJpgCyN4s76bFiLS2qmm87eCwMEBqF9HwiAmUw8k4KXKGnAMtoyQO5Oabtg8Uql2iK7DWKcaL_4R4JSuQtTLDHZLUkiWfDaKJgD8nHfe8Zzor5XKKk_sos2M2XTef_4ds1qTFZnotCsMFaFo_J_ZqOQz87sN_iK4_14Er4vUiuLzFq9AWgBn8O3DnTIudeaHahbJ5WO8zUxbcROYFNd_bKfiwej5KwI99O8wXaNSuyTq0qfIhrP43oc2DO72PnjKQYe7NJ1JIpseI_cBwwEfwKIGqYvG5Cq_8V8PItMk7jMVwWoc89lgyZGUUUUuq329d6ij3e7QfvdEWJpH0L.1juJV6eHZVRlC7CB3ar3jn_._v_UPcRYCduvp26UtNYL7pnTooQV3tClv3BIH7XFEMIpMFfQKQQQethaYUnil39OgxBReHCGR3W31ZNtQ98DtESbH_eaFpj2Zw3rC3sp4ut8Q28UXcu_kb0xcX1Y.KqXrZ06H24zxNpdOb1AEEt0Moatju39vkJO5xitaFEwSCl6bNZbNK2Xf0NeJhhRr8dYteAtmgqlOVYfE7TWuNpto.mvyYb8rkbCAayKPfXCe_gq1bvVZiiyQVIWjp6f2HE3uy9P8MS1._0C7DvEa.crgPHTTpBFGZQD_Knelek14wHZYgSrMEu8oLVMzspugb2N2Jzo3btG5iZoCrnOX0WiMYW4L9Ap12ez3K2rR4T89TWLZy77hswJ6_BbOLvO2.4hVE3Ea7naWPymxt61JNokgoBtBTmw5BnNigRskmaTn.JHO6UF.aMypXbQjx4wVimr0Krx3pXW2enYLLen_6OtRP2.20yXRqc6kk1q5oEvwYaBHJHPEqW465e04U3lMvW58bFWCOqsGt8gc7wesSixaESKqtpDerwYIIpVgpaxt9CB2gZfKJADEqK61M6sylqWjVhC9fnDpI0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f835d6ef7356c2';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\/8106975243?__cf_chl_rt_tk=foTR8eAEuEt13RW4FIJJviupaSej_caHMNA_MF.9saY-1739149730-1.0.1.1-Lvb8Z.Nj2F5H_oPBdHHDJswJiWmjvxxSE1u78mLeAkk" + 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
