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-581727894028.mit-edu.top",cType: 'managed',cRay: '90f350dcda180778',cH: 'U2mzXZJcgfJDJeJNfZI2u4Ovvit37_08FhU8WQSrtSA-1739098408-1.2.1.1-Xek8YJECSQsY28CMJ.TaY0IlFsuX5zihlfQny7eDc3FKw1yCyrING0CC68DoGQPA',cUPMDTk: "\/post\/2015846937?__cf_chl_tk=47kv1XRiYhR3fzhzzPpD3GE1Fp_EEQpDZ4mzKYYwhVo-1739098408-1.0.1.1-C2k6n2Zbb8iGT7vNioHEmZ.mhzxMaw3zKmnkcjgulnA",cFPWv: 'g',cITimeS: '1739098408',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2015846937?__cf_chl_f_tk=47kv1XRiYhR3fzhzzPpD3GE1Fp_EEQpDZ4mzKYYwhVo-1739098408-1.0.1.1-C2k6n2Zbb8iGT7vNioHEmZ.mhzxMaw3zKmnkcjgulnA",md: ".eA1tZ6daPW_0U1Ghq1RySOP88gZOC4.qjzoPL0twdA-1739098408-1.2.1.1-9lJu8ThgMgaQmSr9sIs3l5rYgoKjdU0vRg7m28O576JLEnYw68B3Q8OpB9yoTzs1N3aS4yjBZOuGGD1BqSTNcoJTw6wtqHaPVzjWRiF2KENERAiVdW1WZZncQR1gAztVf6iZahluR4DE5gbTtYZrB20yfih_ZTYZ5r3pWt8DrpZ.vpO3.PV1oEQXX2_Iq38RD182aBHiMLFH6_aOsbN2B9w5hQWvuye9.Onf7oCIKjfq85.OtzGXTugREvVaAxjsxjNWlkKjEtb5XFN.J56z.baMDbWR7njrF1L3jOhDwLd5YtjgMstz3B107i3elshi4FYbxC9FTHE2cvdY4dtsCvCCiMQNS1DcK0sM3FcOzvAIdXTYp9bq5vCTHQid7dJeiwlzSLPLcVFWsihpIpf14tNefBkcnWLVqHrkYw6Y65jUswH.UvOdJe0N6YQIJjq12Pi0SBorxKoMe3tPGnA5dZHR9c8quum3_yzwhHqqZsCX0BaTVAtwqTuJXCki7BHPWbefM29eKlo_coJoMqd50iRKM7SWNUmLv.k.Ur07m8qOrFO2Gn5cm__Pg5mErEjsNac2.0A5rmrc6IfrMogW4127tpF3NgE4KNLHib0pcMzjdNcel7VRnSLSR7HQ_IHwbPb8.4cXQa53XT7nTLeUfulEwmm4q2Sj4hqu22VvI2A16RpCExOzVj.qy83DCuX3z2enPXOqo82QcLObWhs5Ys7u.aEPeLcIhhii_tMMbxW3JuXFCcXNtRiAgN0E_4EUmnAiqKcdaajpBaZg0qpssqcBnQIvHTL07pFRhiNQib27KQD5pFIe18H8wr5BM.x8xsKsewVTXYUaRE.iO4QV0KBGTGokO1fNTpc2bZyxbHMHFVg_1xkcS38C11SNiIOe4up_liwUyUyXum9wpXvj.ABox2.DEzVkcUTOtC3qOxVvPWBIORnhuKPyYCDfLUawvcgEkW3X1OHdxxDo9eLGogj8RAY8iSpM4JkZjWYHHi_2flcWGiZu6ePFgGLOdsrMLJ8g0LAij72zHBSxZqq.uvyhNfZ1JDJZbyWf4f7P.EbBCOUPv1Z2yOCvlP_wCXLZTO1Oz21nyy.cYrEfodeYBH5QCiNXt65545Ggiblg17GUATCyIbk5CVjfxZo.Hv4wAY1D5havDPhfrsKeqCHwUEAjYxvXzbmxNes1mqOdy7bj9_1w67CbPIBxqiTdkwd2.oUJsrk_KF58dpX3HT32hogASW7tJSCeBPXzhUMPoR91_MQY7DjNUSZtUhS8GiQrXuqNEGpJL2cLfHb2Wyjt0tYdU8Bp9KgcyZNuCL9hSIIeacHq73wurlOtlRP_1TzyABsOnVCMQBxjMsJl8JEAPtyk_lsIfUM78nHRJbWC6aTHZBO6xy93Fgo7hxTdcIF6JewEVEZmk6Xj04jHlRd3pmAHR5blI4ryvOd2KbB8eMInmpqIdRTNniMB_BU8gltGgXNu1eUhQi4SvMwcCYNTKNGngL7bhDyV2jYx3ooHPbnzqDN_UOPCbRCrZ6BDj.ongL4SrKZNfWsKKgkJtuB6Wp5imIW76GBDymdOqy6X7oQ0uMuNK.q0rUzb8VzChd6juJJMM5KNSmZo95SXVnonPlOSF_AlPblwkWQ2QLVswCLJkv2o9d8trPtiieAwnL6ibU6Ahe0WKq41Ttsl_ntQV8t.3HFb1oFB27Z43ky2uVINa3sEt9eVURp1DoQz1NyctZ9GkxD1Pq6mb37MS8yr654rxkhtt1hH9mA.NvfjVMscuBXnjSj_TTTWfQnMLDxOfR7PGn6BIvENKp6drtElpICp3skRehyrpLpXyZJEZqLywxBvR8C0y6dYTy3Gzd3BNfaTD4Qek0ZigV2mt7Gz9zh68tvEoXLz08JpV52jzhwUhSAgmX7i62lJEeQI9eIngwwHJMVwu9wAqZwnj0VhNxC2dwJrOi0XIwSKnGZy3YjLavVl6YWQ_6BwM58ceNTKS4pDOnf_0rHZ4lliBeehmErx5PDYyNH5fEHm_dbSu.q6YrsHdElBVv7pzMeQ0kKP0LIamYBMEEdfhdCWyqh4LR_J6NmbV_xHjRZzyAc9DCCWydyv9_rPjerKYKTogeA0n9B.v00o3HPWitRcVAvPUdUGeYX1QIQ1oO82pwDpxQ9cTGS_795deFVEBoDGzuiA.a4YuybTbCIPXPtwM9_1XMJDoH3UCGn7nRVL4b6u9wmZp5uSXxy7lbhmva76Pz5L",mdrd: "NDYs.pFg6jnuJBRj7QcGjVA9wK8t.NOf90bqBPjzsAY-1739098408-1.2.1.1-9YmUxiJP5Kd60MRoPpgujGji4L4Av6aBsPQ0BC4Tk.wjqyhLau_m4e1Di_S.aBdtnoMcQWniKP4.2c7ZwFwGx1WHvpsIAfS8syPFIxnNuJmk.u0Vs13XRdfsQ9smzH71Y7neAYqxsQIh_9l5kAJqVR6zSSg_q1P1d2jTwUGHcTbZizmaqd9VDufIq3RIKp_plqTAfhE81khbn0WJw9y5JqkWAUNJN.b.lU2It_4abWqyof117R61PXo9hLCmpmpmh2h9ZqQpqneyRvEW1.B0T0cmpJpKB4HyYZyyyVWyZAL690YTUPDBaX26pSTtZeJ4Or4dB2lv_kOO6bHOY.63wz2RMzSi2mmVAa9xaftQnJcG1pR44Er5vbf9Kgno__Weeh7vUHBHgXg.u3gIBoOVSCO8DHCqMrhXZfneMML.Aac7cBKK5tyX9dMdaZnEde1BQSs7UFPal1Ry3vB7P8DJ9P5BgY55RgEAwkTv67lEK7Gb4PXfjGhAmKRwM9amTC90HfLnYfHkKzVlcyZGAqg2onEVVEK4lnufQKFy6.myFUdMPgBQS4FS6kJgZTlz_6d1Fz0Nshuea_tvGRgZGQnBHGymHJYo8YqWzAA8R3SfFn9Fzd1tZ6CluIqsn2OYFoGUTbUj6As7yhpLtwuaUCV592gBUjcIhMH1F6hDKXbb09MuUuXpxwflV_rkQDKbMTokuTk3V8EMknO_iEQdWvaeTNU9piw4rsmX2H9nW1RO57jfVWRxV5Jz9K26TUxWHZhVYA.W337vfj1XjQ6KVXEl30ItJ8AubUC7WmEzCnu.1wKSNi9FAAtVE_ssNOdYVeEHaRp.ErCdkbxXBMhTfyo9gLb6ThbxP7FGC2asrzqIZLKxFMJD5H0lCiaW2BapMyWVAIXMJ9FBsWmvqCQ_Ob7wIkjmCqBG_8PFbsHhHPj1P.fPdSq9MaLuzkEV.fNU2MUjAK67jhLqbhVQDzKcrNUXtZknMk5P.vY2_d89LZALGs48tZAdHkLX2khYSY4ljZNZDshheC6c_GuqOO1eRMQ.mnJ5ZES7rqvj1s4J8qqMtNtUX36bOZPDk5vNsK1WlyHDt0FU4yN1rj8kt6LiWW.TY4eG2ORMcxgQL1zISjTvg8ui1vBAuoYEEI6zgTshTtiKcQhXKn5cKoAtZ.KFwbbVYXvXn4J5ANbx0p3WsF1YUxr5jX0zs6.BT5y8LWdcPvhNyolC_J351ZHBtTvLwZJ2wDw_1GY0TWhY230VN0XYl32AsHgzK7MmV9JeAwZEZLQEg9E7XJJ5ni1_m6toEkuC0QmCKkqP4IkBP3RkUtKGC8aLRlA60SbcWyDBCvHn4E7Zuhe0Z7dzifB4XyuShdxOeX_pXaN3AFx7vBgjG4kqN9v1hJyyr_QDHdD6Lzkcr6uJqCNLTqSMrqUnTZAYP_ngoIjNnVzpU9bLuei23FkIXRhrR9j754.GW5KFfCOsPMY4rsI7k.YnDSlZS6PGwM9Lnv1fpfO0BJValo.b05fXLF1no7gzL5oCjAtzjvy08iS6YZhi.ZdT31Q52GyL8Q9LhsZh38Ot9fzh39URZSQBuVDiDqW9WEOa0WjvwW49IrSuacJgNaw.tHSf7ZW4PLD17pkM83seTc89hPdlHGrNSp8_r0gvdMJ_yBJReQPV1vSbL8rMTq4bvDbhR9GqfiEsikTw7NKrBCx29v3bGu4NEB.7lulVs7k8YyXBRhp3CcEL7Tx1aLOFSekJx8CaaaIOQ..Eh.3oQtBCDDyjG2EGImFDK7xhS9rY2OxmniOJpq7GQWfvRoprWbBIur4zqGN7fQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f350dcda180778';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\/2015846937?__cf_chl_rt_tk=47kv1XRiYhR3fzhzzPpD3GE1Fp_EEQpDZ4mzKYYwhVo-1739098408-1.0.1.1-C2k6n2Zbb8iGT7vNioHEmZ.mhzxMaw3zKmnkcjgulnA" + 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