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-0183492657-gov.washington-edu.pp.ua/post/0183492657

  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="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: "mit-edu-0183492657-gov.washington-edu.pp.ua",cType: 'managed',cRay: '949d7fe88bbc1727',cH: 'vMcy7CzyoWapTV.ybEt2HNYPimXrer2xAY2p4fb7370-1748935978-1.2.1.1-pxxwHNk2c7q5yXrxpNClmNcdWilGfVFicFwxBKmZ1KIqDSPb55OkIJ0FTAomsZUG',cUPMDTk: "\/post\/0183492657?__cf_chl_tk=fewnZU4_Rk3DJbMd6yRyC_Uc3FqpvCojpXKYc1uSrX8-1748935978-1.0.1.1-wJQb3_M5wN8QDNV4QJ3rYv9Y7DaZaGROqLE2PE1IoYQ",cFPWv: 'g',cITimeS: '1748935978',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/0183492657?__cf_chl_f_tk=fewnZU4_Rk3DJbMd6yRyC_Uc3FqpvCojpXKYc1uSrX8-1748935978-1.0.1.1-wJQb3_M5wN8QDNV4QJ3rYv9Y7DaZaGROqLE2PE1IoYQ",md: "T6eXxEUqRymVJPVgOj_wkQEtWcLC7JFD9Qo8y9J3eX0-1748935978-1.2.1.1-9KrJUrXObOpLGkiDxTHN76_yhdT4_h5q_AtAGg_V5KeXR3pmhA7xvzdRTfMrbAT_ZZ48U3_ofX93lWgteHdyutTUgUlDZSupKBwIbmT36LVf5rCmb2g_3EdAu5KT7VrYmQ7gqeULKH7e2DCDeaB_kKROL4l5klYK5_gM9JWcX1d7pDhA1K1gadikIGvbsd.6xxFdZLYRTmtHIGkkJcAWRjP3sIKoO3GVY6v74wt3LGnkYO0w6B_iQ88flQIKfp04cRwfimBlkSWIuQpwJx0BBJNwkK2tkNsVGWYNx9XCJtm1e04h8M1oFtLXi9wROJl4gp76ZQ6_gjhR451xRyxKVm2sVl5IAY4djEAttadldt6k3RhPJKl74hDdzvj5ofn6d5vlpnxKxhxhqR8nzdvI.NBSfaXSmiDb152QsziHZ2g7XWTyofMgY4oBbxEycUgRKkHvUQLVnMzjwWkYxCZ_K296QC_eyDtIEm8b3sGXSPicIi9alySycv59v0ZeQsCBfaTY6maS0XnK_csUFkg15Et53HERO0qKPnLooZZ5.cLTYArsuOsoU04F51FWTBGUk4IXGiQgwGcOpsYiYF750NAVsRZPRDAEJgLgep69T6Wi3rBxHPBW7d8IQwuxaGbsYyXsMfNgSTW6LYXUNpZqk6e.Aa2IiFbWLjLHe6wYmmtJn_1cCEFnW571AiV7H4pnKQ8Ahv_nQCrLRqxps0AvIRqQ6egKaKwcHvVoQws4QfC9S.9Mvzllr3T25jXLo6yOe07E.fCeN1HYaI3Kk6ly17C33ennQsuVCvi8n4nIDir3kYdJlEr54v2gYLipjfI81EIxqFgsAa.FR4Gk5VdjHXSmzW2RwNz8IIxKotbOlCQ",mdrd: "2gPDj2ERgX_SZnVpRX08ZJ17QDn77WJqwjx.TRB.M5I-1748935978-1.2.1.1-EUPOhqUbDHMBP2UeDLRoY8V4bIyjLK_AKeJk5I96Mdz9oiphMDbYjbrEVKEc8AIN9tJDevYv0so6EZlgEMziuUvQK6ocJj_N6pbg9rVts4LgcjE5gbH9MNiPDOZzw5BxOyizTZAvlITqITQ6.tsqoakeOZRCELU9guO_RmrbfmeSV0Tg4gDO.wtcsT56ffo3GHGuTnuPnL5AOBYlTgU7yHRsi81IQ2Gs6Z881by4WKk3fA9EHRc483ic30OFd76X0BgDg9UkJD0ZTSwyuRPRpbq1APKNuL5nngJ1Zqh2IZ2TCKAAP02ingNN9lxwBKo5HPZAprXmYMQYpv71lTYZ2f4c6TEFWdY6EwI9zuHn9ur24kPzOUsEKgiHyS_AeX.wuNab3oub4uV1CzIpYSL5Gx_avFI5TdL7RoprK5qhPT7jIpqpccJq55UHKJDnq54yehF_uFOkYUIVNw_AoKwuml54JvST8xHJRZFJgsjMBV2lFguOoCwYbikX.yc5euD5lbzNomnzBvV3pU5Smgs1ae6KfUwVkCgtZHpvYArQk5Jh5b2T2BKoTDhG8QQw1l6fAY2FLv6wFZ9TsgojtyclIAwFi_wcrtxk0_qsP02dSdVSkKnriHaZ15FX1rg3oXxtM5V0MjgUJ71BeGxsm5PfDJL7Qd03zNFWYIaAM0XSCVSyt76ONl2Lf0tB6hvsVFP9DNeswTD1lZBLUyGlHcR_1DNaMgWbuUk0xPJqA1ZggN8uQXBIoEN3JLQK.ACCJ5cVu_sRhQvwmq9pcJK7MOOWD0Lk59FEzKq4mSwZ3Tspquq..jG9NSVz4KTU9NDH7KyBpq08u5iBh.A3gefZBbObzKwjpKGcXs.u8lZzWwYiHzx0XjWggG.U5F1SzyqL.Fl9SU_ozSIxxN5Cs8DEZsSI21E4uOtqHOOdsce47IVtMlG.r8soSsmIAOCfah6YJRHnVcScVFKrXWJo3KVFCLcAMm7KVYwU8EyjG98YkI5kBn51MDXvvxU_2e..WTdX2hfqy9SX_Vt9X8xJnykIMXDGKrjAtEonKFzw7CVRLVR2.fAYf6w.lOh1TyYCCZx2DIOa9SiOCzqFuciUrMkzih41sEMQnQLQkW5ms33gN6GbrvhqaJswf3B0H5ngl0c1vhFi9kwEkvf2C9p9zn8wjyEL2EAyIkwURnCS6g471jk.6xUnHlPK8pc_30JLrlkzkC44MjeRfGIHXcCu1LT3xD4GZCKIbHNQuwcj5.AUTSl_MYisBJsavU53N4EBrDWv.f3APT9qKP.DxbZmmvX7bzgooFSX3SIo6gKsB7K4Oo2yL_CPxWZP0fa2s92Gx8jFVx6sqPjJFhUtwrpOSZfXhjMXLk6ud5ywbHcJ1suQmD8F5SJpA1GMiMbkrKZLnlaIKVdrjWdhMx5iVCke2Kz229HYovOFBPowFDd0UI_pffobK1IIUdCAnF2ap2N1UZUcwCAO74DlEJFnUoVtmt8Ml1ea1tNZgq9Bok9G6GKlEHhVy4s8V7mBKqNFGL_R_BxZio3Y10Xpm4__mejc7Oxs1ZEGJZL1yn9gpZxQy03unpbplsWRAlK0BCAWOI94uuTWeBiHL4zjcShWC1Qjmt.F0Io85wHLQ0KHWVsM.S7O9eUNRvB9otUYrSsxz5R7c7aT3KuDhgnmz4ic0U7age.HWuwtH0tMcKy9BtAVx.ssOBu0_WoZke86A0nuu8Jy8q824bSHVBMF7QSkfKVXz2IPF3yhVwuG2WyW2X8CFI3gE6EVSPvlGFE9DzJvuY.Q.fKpKTcliHHYgz.iKoHDtb5eAcOkhF3BmAoUKKl_8EgWQhumbrjlHnWsOxyU7ER1VgDyaXyaow17VdIGcxv.YX7weHh7_CYj9E79fFGvJWmkq0s.C1W_EeWu_NdY0CP4FIHAD7c8XfkzqzhjmNZxhB_yJ2v0BQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=949d7fe88bbc1727';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\/0183492657?__cf_chl_rt_tk=fewnZU4_Rk3DJbMd6yRyC_Uc3FqpvCojpXKYc1uSrX8-1748935978-1.0.1.1-wJQb3_M5wN8QDNV4QJ3rYv9Y7DaZaGROqLE2PE1IoYQ" + 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