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-0985732641-gov.caltech-edu.pp.ua/post/0985732641

  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-0985732641-gov.caltech-edu.pp.ua",cType: 'managed',cRay: '9100afa4ca152093',cH: 'NY38RsbKiuNRmP1DxvkApLp08cjmK0jk6iF9LWuenQ0-1739238605-1.2.1.1-711lsR8qd16xsDKq3dHGvF7Ly_KJBJ0bT9vcgYm5ReL7_oH_PilDNUH6gyOJ0PGD',cUPMDTk: "\/post\/0985732641?__cf_chl_tk=v6T697l1kcdWqCaoqmBKkuYQc5cvI1OfwBozCJXiRZc-1739238605-1.0.1.1-CQpj3e7xhtzdXPKw.bnaojVdVk3d4Z0tYFumpmtTR8M",cFPWv: 'g',cITimeS: '1739238605',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0985732641?__cf_chl_f_tk=v6T697l1kcdWqCaoqmBKkuYQc5cvI1OfwBozCJXiRZc-1739238605-1.0.1.1-CQpj3e7xhtzdXPKw.bnaojVdVk3d4Z0tYFumpmtTR8M",md: "HseLeTQwz9wEFhN.VQXI2bBueRashvUqmTMk4D0.9QU-1739238605-1.2.1.1-6.uXcg0HE8HZlN8CJY5QWPt4iUhriZ3ILVCZxa9NcMTUNERzzI.jJMZY7TljFq6f2Xa14NQapQO5FoBG7NpZCefqXy.V85tYvFYNusxAwNIcOkDXbluABlB_ba98IsIsjEDxkvY6cOcxLzr_cUiq_4Im0iELahRRblLz18tj9T9Wt7mcfl1IQrrMBix1kSGD69Oiyt2wLN1jZeJeSmLPIbrTS0A4AmoJvRPBmowK76F0aSQG0SujneKm5dI6aAjeqqjfV4qQTLtTRndvXJh5R6ICMR6Os7NGU7_1_i44VsFFVI02v9ujYHMzUfD1z.epIKy8E.fWgw0BmsQ1Kci0xy0LVP7qUEMGbMrHJLlicnUF_CtfVPP4ZW_sLO4Okp54nqHVXjeeSinvbBMQPx707p1.QNP5HDbCcQtvvsQNUgmSfN.bhpynCuu4BMrla.lGvDZwGHqtqTwHbjYnKTwWoUPEM7Dmg0lS6GCSvP2lYcW3bqSyFv2kZe06Iw7x0e3Dj_62nw9y2sp3pFUj20W7JPYbGW8aaYzmAioSunAg_irx8vRWw0yh29CiqrQBTSoRNzufoFXZpBVwNZAuaIBSR3pDlU0QROJRshA.8ZQ7.Zt9guy9fxPAqjFoUZsBouH8_n_Uh.QxGLUX_uC3j5gSjwsbCpi2R6z5zp5YmAPH3MjfXW0m4UXoZW9xr5EucQuBlPoEmEK1D2hyoGYjcFYR5Vw.OzLDm7eMW47p_mTB4pVCBjDIZjB6cq106ALnfJFIMMx5Db2of.kbGkQbw0tkPZj2_rkqaASWnYn0uYu4KhwJxpAZdlN2TzgmmBEANZ6yitCmOFRfSAnncQD_xhSvW2aG63pZnCbgmXEuTxU4.7w4T9XAMf8CgalQWiGjA84whepvE3Wjs6bZZRhJHW_KNHUUQetSlUxPCsFH6JTfcRbIq7mTlJH_DUbd_DFvowZEenYNo1t0Ugah3lFjGCaTm1JjeQ5EmvEKhbQyabS647r.xRJMWFmKTpJYoLER8eUFqq_.a8zCGL1Xqz89Cu_roum18jeQArtpN0dHwduhtYGZdzpfOCEedJydbTUnbyka3RM78Antt4fzBfGUL713XDEK_Q2gmtyD7MM..80Q8mlN0eSBT.kcARSYKHr3TBMZvtHY4vtN8pYt9A48x6sBha4dlWA68psMTbm2auWAvweqxCwRpZIuP.b4P_WDd3SjT.RtwVZvwOPl0UOQ.Fy8YLSPnzjsgy7vKsIXjNVB9dyxp46V61SDwG6SIN09Tydr6fxYW9IKrxzn3wPJBFC75kUKKg3HxF__MI5bZBjy84ms2b_Fi3kvG.16kLPxOq_JCvwo0y69PGHmrCTcdh6zvNyr5qliyp0Na5Lc0VgsTC0vHxXvjdzsFvWH6l_6BxWM_knJRSoUV3WBlwoG5Yt9AH2Xp6WwtpYW03MtyQKLV5s_V2LLnaC8saUx0nVmF6UeVT2lgNOotS21BL6fWksBgjaw.pfVdpFBr6fUGnLz0Upmr4dgXGZ_QVWRpBuui21_M7tdN9koRX20khsCEKXUDprIEJrl3jTMxGii.uZeDulQcGF3Gan39mjwYGZDF.aGInpfnIa2OBABNWDqB1Xocuce8dDyj1T5J3nDLYG6OIgWY2rlTdoe9o2i0qkf2rW3roLu97VeNxYOsSAwTXezRRrjucsKfKamAHibcuzGgpMkD.riw07ydreZCdM_D2x5UMRkhnRQhGj._NmN8a4ORi.dAbwbQm31CsAz64tWDK3xfMvDR0orPBIwl_7AeSmNCTrBCj7Hqyc4fUHvtS7yDZdCtSDYQGQ6EUmenvTSiP3S._bMEclQT9auDqg31i9VUop4Q7iNb32ZUMVsO6Pl9ToF0FR7o3jsmIOSMv3RiBmvj5FO.0KlFwChwXNiPlmxWssJyf_VD0EJjkTBNSOliDiAH5_s_XSE8q8z05wFu8GDb2H5YkZlNidfML7py8l7bCLNsnmMYEf2SPJprXDRYOZCm0bvf7Go0hTees4Pg35vs1ZMLMv5czODezYuYTLfuJ7JpbhvuYNJgnEBVLvIUw4RR0J1OJ52A7xnKMf58C9m.62vBf7tgQyOo0ib6YwJJ9pOFsjd79Ddmi1d2EY0cTXT8oI8MoUeA_g81Pc7aDWzCu6KCSXX024ITMOP3oFhMeoKcGieM3Z9ATl1JE1FNYQKHfH2V9vx0CnlupfT2gdb3qDmd.7jGdc2a1YWS3Iszue3OMv1.iRs7.wUqBSegA",mdrd: "R_A3k.hcXJnOVosTNWBrccgas0iWiBto.0vZa28dW74-1739238605-1.2.1.1-IvGzFCKkyw2tep886sF_drHWu3VB6j4yzfdmzAm7g_v2L74vSS9htlTPjoZ3Ue.ZSeoljS59ahUoMwWVg6mAP0D.AiiqD3HFTHp7qW7tbY.OivKNk.mhyTdV5zTfhdI1DaUw8DI_28HvOmDa1FireFavqCpzbAKnZ0VbzeNtBgyKqjz.5OWVfT.EplleH.51Qq8MwITCG4IAmqCd5owTEqRt04ib7w5xIOcBMUWP1dukMJaH7opjSqPzBCkSQiLZCT4HK2nxklaGHd26bI_wuOgTf4CSFD4vmn.PSOpJfeh6yF6RtZN1atCWNBebbsqO_EY5ct3EQ5AHf0liB9_f7urti6sO3ZQJmnWkTpOfP6R3vXLGq6CwQK8aZQg4zUPDT9D2k.SC4FdW2dFFdZWnWpnvekMI.2zbFcRl7Dq0j07nuEGzPt6gRBYy6U.28gz7UxVPbWfAqFgXq.YkrwysRX3QXYex5c5Ad8T5NdDLfF8rzFhHa3GY50f0lEHSSrG0JDQdXqsrNIX7JeTnkYLxJfB5TwLcQkJnO5RN17YWoCWnKsRqWFqrqigMMTgeQs0E8Vr62T7vc3tL0.rVH6TIdb4Jr.qHx1dLyxIfmKCiWjC431MebsrnbacbFJZiV9RDzvrAV.v_3Jxcdh5XOAxed2bkSdQ0t7Ybn_dPpny0EBErE4hOG9IZqu_e_KHicO4Z8hPOk88UgtEgYk50Z8_PV5aR.IaCy3UrnvP4wAGWUpOBh1XBbSKK3XZ2QswowUJEUA92w5qW_bQtwYqkSfM1YeTcjMCYbKQFpX3VNq.89fMflDCzzXnB2sQxsgElnXALZThJmN.FFyB81LxIhjWw5BbR8h2wC.LcrBXddpkoiz7mlZVNROG.beLNP5fS4KnhmIvC.dcmuGEQtgoNZVKYu7OIWQ.X4jJ4bsytTPH7T7HPo7Z9iG1EQzw9f_lvjx3DOl0wGUKVVLsSD1IAd9ucPrmUoM89sTYnONz1y9zf9TexIhE4wjrczWO_Bb9JaZEzXi9D_lDNwz2XzUbB83ZRXK9vzYn6r7GpwaT1biDzgDJgM0NOxWK1d33qlJIiC_ScPUs4EhfCjj07WphzXFaIsvMfqXVS5E1Z60NfDw6Og3r7R24dhZ.YrXFyM0nVa7GzNxtOoyUIbsTGgQXFbZrWPFM1VOE8UYBoKSFn58gDwnbybxwu6sP3uv6XyKwsDZCMXFw23BJSVhGjWGSkdY9APCaGzmjQvnMKsc6LTNfWfPt5r0k8Q1DcUzoKZxs5A59aXZzeoFAFX6FLtgVQ976EDhKLYIgF35WIQ_h6XtqxbFbXbGWjG_Cme88UxN3xyuYRvSmJzkUs64Vl.puantLQNi9E.J0Z6eOGfIvBRpIj_KX.5.zUaHqMYUPx6V38drY936IC4a2.OVt260oM1zgUBhmdNE9bILHuOsOUdidqtz8lj8TeLbGtTR2spyL3uiItjLuj3zm6pQe7X7n._iLk4DG0fResKamvodg.sHgg6RC8_mD_Xt_TLBqQGM.z_Cb1mNlw24c5cpA6HGkMyzjFmAhT10odwHkU97l7RZOJPCEcljTuuo7vWNWS.9RCMzGyR9z49qIebFiTWHVolejrL7NGTaTmDYa3QCN5b17OMtFKL.lux6svDFeDv.6Qlf0mzsjeejqi2rsCBnqQsmiaasQG0Su.jiDAy9NChV.mnULnW05km4VQLph7DZXgJvxYzqlxgtIUMWTHjvcYlWXRu_.DXYRLNW9zEAMISshwko3qcKfpp2c4GtT7S9fbkcSiPVGA_JYjzkH3i3tdDmJQh3etGJZLEYQ1r0JqfeTid2KMXvfMiFdQbi4p.MTUjdpE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9100afa4ca152093';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\/0985732641?__cf_chl_rt_tk=v6T697l1kcdWqCaoqmBKkuYQc5cvI1OfwBozCJXiRZc-1739238605-1.0.1.1-CQpj3e7xhtzdXPKw.bnaojVdVk3d4Z0tYFumpmtTR8M" + 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