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.

Source: https://mit-edu-2758364091-gov.uchicago-edu.pp.ua/post/012098940978

  1. <!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: "mit-edu-2758364091-gov.uchicago-edu.pp.ua",cType: 'managed',cRay: '9126951eef94c9b8',cH: 'IR_6lk.u7A9R7D0SeSPGsUVhOPF.2QuSYW909GENRCA-1739635978-1.2.1.1-IHgp6AI2f_bFX73WbjvzD3BvnQ1pzxWjwAdYn0aAc5vu801K4dL8d5yMKD.WyjHv',cUPMDTk: "\/post\/012098940978?__cf_chl_tk=6C9c_4VvEI1iID_ZXjkoQlSXtjwOb0JBrT1WbWe2ito-1739635978-1.0.1.1-GK0dszeiuz1xqC1G1NWJ1AIvaJe06M8L_lxlCLoXZks",cFPWv: 'b',cITimeS: '1739635978',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/012098940978?__cf_chl_f_tk=6C9c_4VvEI1iID_ZXjkoQlSXtjwOb0JBrT1WbWe2ito-1739635978-1.0.1.1-GK0dszeiuz1xqC1G1NWJ1AIvaJe06M8L_lxlCLoXZks",md: "CWQntbo6AQZO8uGsJt9CLWptr7DIvXY68QkSb_MHkvE-1739635978-1.2.1.1-Mnf46aRaRXyT5NHncr.dn4JS4uBV2tFRAWsQNeqrf_wK3uQB3gicfA43oH_AElVidXb0P48qH80K32HlNCPTseJs30kt6dqporrh855s8LfwagontMKparfnQYSTSI2tiRNGrab8PfwM_SN.c1PLXyyyhLxEneUEQxeXcZ6Teukxt1s_Ib5t4KhR06pHhHrDDCFOkVQrW8xy5y2Z5w8V.85vIqjTu4C12P_NDrjxPA1vqYjLsBEAdig802bUe6njnNv6YgO923X7_F7KLwUiFuGWJKnYyoEmUO5rzYemEjFyd1jdF_cRCKV3bmb16AXMeh8M75zkY27KoT0LZtOM3LBHpJDAp9AScCG1m8q.cD4RLR_X11XLKu_Wl.ITHvxaAO5Ah8Iw.O9dyMnLQZOd_iMyejag69gLohOKMYpRhypyeIo2ZP40MAV6Pfn7ywAu4jh2hXV5J809VQEkMKjXCR3oisZyycg7lwELBtaZQCiBgJsZ9mnY2qQQC6oZUwQPbpncWEcbhjgT_8X3G_2TC0s_6c87aWo6RmlO5wp3YP6CYDLx1H_nb7YY77Hs8Qac_1hnn.GsojwktYBzcONU1kPIIr1sCt6Py9TO83H6kXxMI9vo1L8n_WX92lA4PaH.mlpqTsidTkkqGdmuhlr3aLnbp6nalETkg1KETh0NCVMYs1_aHWch1.Tx4GVmoY1.bAhH.YLUUe9yDGWTkUF4osJyebC.qYMsm_yMjk5nVDAiEx06n1HmCP1M5kl6VdRCYib0BwUi.Y.p1nwrLzNbsNmDErvQBhq_1jK7SlCUFa0Mpz6qukODpmtJCMoEDLUKB_m3UbB9YodT1OM.a3l1oBUwlpdW7149NUfYNSWZ11r74rGaucdq4s6vs4Z.tGtO1lbPlgGf5TkHxQHsVrQpSJA4Q_TuBjsBXOhon8dHA0Yz5Ur4GXdlaEp6REd5H8poaoEUen4GbGDmOFCRVQFM583ZbGvnOiB8jaep2VsgsBu8.r7iYy6RcRTdTz.L5mqMehKlNXCn1_XeDGqN.R8zfa9C09dITE_P_yowsqYpVX5dijw1VcE0Hut4BSf4V8Xs.JBAdq2HTk9TtdugFr_lKHcjJBMvO_KFrIvGktrnnd69.kjKdozLkZfCZFdJQmLehwCRnenl9mRsvcJNcJibgDcG1yyoEvxOrl4AmCDX75xpOS6qkNHanauBu1CD3m5a3UMyiEWBGCunULphcqSObFdIt7NmeEp7EQIruVyzKMKB6raD5iUqouEt8go77Aqre7x0WhfaES5LGV2dga5nHWHVWcVMVnQbE96PyEYve3gVBj9pFu5A54wIDGQKzx5FDHPfzP8Tw2sRePExyMU5NrsA2nIqvlES80KT73LwvpcEge9i5BCu6HtSwQAncdHhpy4qks5BvW9ln4OWiGh87NXblJXlxGln1AyFz_55lZ2GFkYUKpYGyoDTfr4ojIqfATzTwVYVptz9Zc_MwifkHoziY2W.woHtBc_JvIqOfRlMYj7PfORB5HY8W7lbBf56nYtD2vzS_m1neVMGrut6_BBwCrs4tdwM41ZFe_WxxayBmEpWo5wsujduJ18amlqZ6YVp5SgFL7fbDFrEZF.wAIjiC._IOvjUIUHjhhdVIUsk4fe5lmHAImKSSP.xbyvpKVQKonAjtxpvfr7ELIASaAlwAZDirMdPid._MPcqdF261af4oZ_CCN5lcb6DHp.LQdxr0z9CoEYqHaPD9AY1zN2FqgqSzKYU77IWJVVsvK5iiqgwOnnBaDCpFN9PpiSvO12o6GtP2zY7qAr6bWVTD8jhvpFSNKxGwqoJQRu3FU2JDtbFazybZd_j1J_yDhnGdWX_7zxM92rUhwQdoQKb7AZHbzbcLSRs7dJMNoNZaxQAvORpYG.PFqi0cVxfyoU8jLjc6uhb_k9J2qKJDdC7n.laeO2vH97YFxIBF8_IUPfjqazC1Yor0REcVLGON_oG4In83YODhjHM715gYN.ok26xeDxX4rx5wjtEI_zGkFgEqlBXCzE8_g7xccIQFx4wY_gwgTmzfQavaoueV6uJq.MZs8snVwpBWb6Nm3GlQbJmlD154Pjo_mbZV_DMhk..ui2Ee8CB1xcrt74wzqPIkRo_vn60V50Sw2_m_lOBiProRpq7_tCu.v2.2BUL55Ncp9xJXYnx6u1I7wwlwD6KauFO7Wfd_c.mfTj3duBVaVEobhFob3vbcNgyJPUKTsIOvIEGXu2gtJ.nerTWO.MfMg",mdrd: "TUC3rlnO4LDjJwppFsbJcuqFQuqOoM.tXOS52R.iI6Y-1739635978-1.2.1.1-kCci_gnsDX5D9.gcMNNJJUVmZJV99Cxsc97ZeS5_UCCcuZbQVb3nppuSp4edNUfb.UwaDF9biMikuWOVmVrTEdvp3tsKTSAdqfNeA5hLxE2GR_v4KZTVVuklAo6V3IakppCTi8BqyYJJpKU9J35AmidW.icA_4ypra5Wfk47jvAYsGjujAfWUpqL2fYhH1PYdhqcoLZBgA_PILw.1uKw4iPXQfpw8khAvTjLqTt0w3FGWUmxXjygAFdasq1et8Z3Z6pVozIqINumjnDedL8LA.sJD5l8R0oNsLGf4fBfJrWjag_Yn_S6t_F.unfFLRBdyOzTV4RS.j.cHv35HsqUR5tGolAkTH7ywZq1qOEgNl.kGYqZuNyyYcqGzJtblmmlt2bMuiKscZf7AI9vAhtn.Hqz6FjzIV_hegEVZ7SurJ0hcmxt3jvNRk3mFHBMTPHRI6sYfoWqudimCUTeacyoc0dshf.ZPe44rJxgoRxPPCvbPF3dgny1Rj._NV_byQqVANo4Ze3f4rk6Gvpff.7328sZrjKfTJVHHMwiKkFmjk1YWhQoHx5aus5A2Pz2rJVx70Y5FIX5nC6ZaYzNVIXAj0c81DhD8P1RZm5CuYXjRSYTUkr36Mog03ivk5WJhDUNZoP3JWmSR5mPQ7FZgI6iCycsjOxDzC7t8AzXFaLM8wOwubhpCSjOPcJalfItcrXAkj9Ze9R4LHPIbLk5S9jLMKn_sMn_4sUJ0hVsQDZBGsvJVPD1Su6bwq7zz7xE_JMzPiyoivEfKf5U3UcprIz.RLQqnlBx.EiGFeWsqL.U3wABn_CQ.7gh4ZPulg9brVDd4cgbiwAfyMOgBLHsHUSXQBK6vu9XKuhtFnySxKoOa6Hm6hA148w6uQNZbCB5L4L9uhNas2HRZWHKXB5ic.pUquWCcYkVfpjUdzec1GBlGgXzMqNHlJDslLIbbXh2UrlzxyrLIU.iWFVK1hN4ho0UsDiySoLzFR5XecGl7j38XBOZeMHmd.1MSkrJLx5AS3de0ncXOIJxBJbEiiPf_9gYMRU4S28Sv90xBKWTBsTCs239accYAZTFWPQiaPqDId3ccJDfUhx4f9qZQCQXafsm3sFy1o.H7bKPvaKnavhxOze15.Dm3Uo5YII8SeP49rdJd1svUZTPY6W6OuHptYOUJCUuQ99cvyOgzbzo2b2v8zFTL93QAiBYiL6Hh6OjX0lvU9HAdmRcyvEPMs8B4IXLJaob2GsbT6nFl31LAjciSB7Qhm4c8iJBvyV_vhOhW2c3Ggu5sLLT7Y1L_6QRfovsGVwcaJ19lL9NJlNdqnsZ3_0k__UdlcAnUq8zmF7y7Xgfj3Ia5fVOKkPm9QpxfVC0vui.uQ9sciUzZ.PoD1NkwcClpXxd3kdO5C7e4f2XiFPJWFix_s6LLNqNMiBPKkFfVd5b79jE9Yv4JO3P5fbpO.Z3yCjNuListqWCyn55fJNd.gqE6LZ3Udnwg2RZlIlun_j2aMR1Yo9LlRyCKwik_OyOLM5YP9w58R5ECGuw8xcHOB5uH7X39Lf3TyuCIAnExnbK9oBSm2qkZnWVgMLSmc7AiPe5Jr3nzW4gg7vk8gnB96nSggWoyHyjoIh4FaHpRlby9v09oqqRBSOfSGtlFd9BYjcLTepEr6xX3ponPp2g0QT5PZZhWj8D5F_SZiJ7o8X4q6LYGQ6LIeSQx7WAyYDahul0cvDvzuzfAb1Gfvi2nouzAX0OD1JmkCNFsYTr2RAp7V..xn.gKwz7mlqpSVl5fDtw4NUEFuUtMUQbvhrJNbEngZRQjK4r4JqVJpyIA6o1hbsSTuGNLplXUa_L3nITGLqdCS.uxRCkkJtgEYxAF00rG8L.lSn.y79BwdH8mg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9126951eef94c9b8';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\/012098940978?__cf_chl_rt_tk=6C9c_4VvEI1iID_ZXjkoQlSXtjwOb0JBrT1WbWe2ito-1739635978-1.0.1.1-GK0dszeiuz1xqC1G1NWJ1AIvaJe06M8L_lxlCLoXZks" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda