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-9614328705-gov.washington-edu.pp.ua/post/183596448616

  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-9614328705-gov.washington-edu.pp.ua",cType: 'managed',cRay: '91ff4bf3ede356ce',cH: '39MI2fNIfR4E.cXtCbOVIYlcfjp1m3gVuYlG3.JNfL4-1741908391-1.2.1.1-TKuIAieqTto5vedcqjDjdexOcTK5AeHo_Q9WF9ccaTZGc448ExU_oslMIX2lDuMP',cUPMDTk: "\/post\/183596448616?__cf_chl_tk=SO2rN.O6yUrsFAD1lCwwzs5hvSnxy0A8sbtl.gwbGSE-1741908391-1.0.1.1-UTcnEwa.gyGjL5wtRQffu1ltuV3CEgdYuLujMx8rbFo",cFPWv: 'g',cITimeS: '1741908391',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/183596448616?__cf_chl_f_tk=SO2rN.O6yUrsFAD1lCwwzs5hvSnxy0A8sbtl.gwbGSE-1741908391-1.0.1.1-UTcnEwa.gyGjL5wtRQffu1ltuV3CEgdYuLujMx8rbFo",md: "dTUVce5nYbZlJBx3yt1dY87u1GA01M9MpkT3_f3bewE-1741908391-1.2.1.1-qoyKE43oDJ2CnICA21cBBTflp7al2Dz07dL.NDzbxEKhfy8zvWSkoO28c7nAt4iY95acuGsdFzyFlfs3ZSsjm5Z5JB4BvY9dODVBNR5mAwzaHHGc6vaRi0oBhx6zLKDy4KrJCVQr7uQDD9CoPpyEiiTLTvyg7asGx3nFAlYZvXfxfrmLEdNW3_V86KgSuGTYvihSaC_MZskUVSSsRmN0hsXAa0zFPBpp5miEuUOS6i90lRrXTR2.IVjfbsdnJhVHFi3Z1vC_Zb7mYEtWNYdD9SnsIT6OGpA4YPlOx9bDlO8b1gajQJvcrxPIcYbAp0ZiKtLit36Y8OyY5T0WMnU_tzaXkcjfxGG8_9mfQMuyRGUJP6ickNri1AMRp_iJ6weyZlLkTPqxxyLfFFAOeC17DkguNyhmnu6ZQE5PMdqVcWUNeeAUwsqRCP1C3BHQcZMtdq8kFyBGsYdnl7FdgzpOYOOb88VG0zfteTiTKatUqSQtTGsdgVsSAf1wZ8en0BiOrFPNYyLALPSUhYNPbqV.SeLh4Ukn.wQaUYUBmI0ycL3CtWvaZf8OmOKjPmLq2HglMFj4uRNIxmLzx0V9qMb8qyGuXNjGTc9k0K07YDt.OFbFOYX.zt02ZoSSN1SW2O0DeRCoo.UHS6zVH1EsOViBm7IqHqQzq47NCZD8SfTIF9CXr8BFyNqNF.dLsH_uDKqiTEdBYL.e9hAJOl9BUgMhW.nZvUjTXTWbw4DQznQsg3Xly_cpzchgPh371cgwS21BRwGNXbTnMga8lDkIp6gUTjFlVsp86MmPXo__bIt7l_pXmhxcB5heRpt_HaIWtQcFqZMT6RT6WKVF8dX5GY.Nh2l3z84sC.p3Ut39jv6vxwtaxaq.MVKISa2ZX8xeUgtPTwOwqlcH6g.CkcUm2FFe68MNW7lxIvayDt7dgjJcj46SZe5102ZtVhghzaQa9Quv_cnOEN2uQbYziVpdQ9oFNw",mdrd: "abBJwsT_5AEMiaSb_6zgSoEy9X.77yTFkCo3ZrtFXyo-1741908391-1.2.1.1-mrc.UrayMludzEmJ4nMOFNRO9DD8Eds0Y0IlpdGhHyCATgHqZHrjmUy30Skl_hAMH4ECrT2vg6_xySUKjfHQLJewKqB.YZvQWlIai50gPc3SirSQnyab8l74cwjUHfwPlQjdk6O3g734i3TeQpw9YvU5hPq3NwPXL1_9CXaWVHT9GcvIltjR3Hc59PH_uTBtFnCWTfxugQw6ReeKy_gJeRm6n7caGZumtSEGxu8Z3peoGKzTJUevNHjb0rzxCtDwn1ttPOzY2y4yXMRJgLHd5YF.iwmPTeU6sFSaiL9srMFnSINBzY38tkYPzyx.x0s8c56H3wfHDvO1AbNmPklViOKgx7eQhTYDxyzmEY9uj8uq8fX4A4m3wvqvQ4lCPMiIVVQvUuiirWDrQcvX0Q4pgwLPzY2uGVlH7lWhJJJGIC1BTrKPV0_qovECZ2qs73hNVthJ9ePsUcIdPM5ttfBa2M36TBwE_MU0KPpuART1HDvf3KiLOUb5bkTergZcx91l71eyOtrZXaxKut9IM1b0FyEg32rlnhlEEYpNDzEllKLQ2z2al_mXPTCysNKzoWlnxNZuuznAuL7PSc68W66MDDJbhqdQpA4OgpP9ImnuEf2D.uUGfGDvAQ2GTLP2XbKcias1ts0sJ5Usy5I9tg7MW3x9vOL12LtGEt8.RaOWX01p78zuy0tl9e6O5x8ZSoOL7x3hzP1S66l9cukUBYVJrop4w1iKQPKPcvir_2IIOaT.6LdQTMtExiiRi8m0.2fd9t6TV1p5osFaTkF4jdalHNY0AA07yQm3nZpAu55JQDvgkxif3gBEPBhsPwLhOp3Ez2Tw_XmwYsDduhxBfSm50_IOKjVOsguv98QjRPa.gFCLKktmz_o6OEmkZLq.Xu2LIQha27ePz1zk7pSlm0WkqTR5g4..4udnYH0M4imWZ4EXYPZ.PuC4twF1Ct7GBSsO4WOWSvCa5AUIYP04P8h38hzfAFR_Tply6T3to36qQxhJxzlsWXww5grORHhJUQ26Fjc0mATc0.EgYWe6pYSE5ZIIAu_DuDv97J9JY9HjJLDCOHG8xxAp_WOqc8tpBn3pcUD4sN7F0FqOFPnsTjK3qwJ6jPZcqRWEaogZXY5o8.hGK0dn3ssQRZz03nfdZLlz58gnpS2GUyOu2Nw.cUI_sYd8JSj9AwMfALZ0VLC.Q3DeJZbiyosnMqPj2X9YOuFz6WqU3xWHFzrgtOhrilAfyB1njtYInBgOSV5GPBCNdw_HLBLe.E4k7XprmDlDWFK9O0196JHwu164ThSuzhxzRD3qCiDFKIJHWs0m76p_y6UH0mUbJHpsEpFM8yPY.ypySHcmCLedsRnDHh3wdvLrUAZmNtSY3KdULo9D_mgihql_yk3M0xJrwDfiCTRs8KTid3MdzjJN1bJQjNaBq_zF2CLyIhZ_txtsftCR5cFXMDGwl.hDGOgqxr0ostlyu8_CiWKSNUqPp7.aE9RvGwa5VLXoxne2xiEh_IidOugdidrbHPLWO8EDxJEoIsYg4A1g62aUjgdtKRcRXHgZY4prPisf0zXx6najinXImT87zpS.R2mkbpamJuD1aFFxJC1XSlsUMN6QOb3CRPm5NqDKirbZdAnlYs5gPWQCVbMUFHcJslco5eAkAfgELYqaSIkzIcbg.ZzjFB.HPzB6echbR9YoxoZKyCa68ebDIOedA_oAYZL3QK5r.21DHD3VIBTmKpemHy8bccUjLTqJuUttl197xbM46z7ALS7Py8gii34UJMKRp7_AWfA4NlAjhriV5McmcXinys6MPV6X_G2FcYfrsBUtaagx3n6WTRF0Wie9hW7NoP3fIxvEm7vG9YZsJ.vcDDxOQyDaqUZc6WUsbQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=91ff4bf3ede356ce';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\/183596448616?__cf_chl_rt_tk=SO2rN.O6yUrsFAD1lCwwzs5hvSnxy0A8sbtl.gwbGSE-1741908391-1.0.1.1-UTcnEwa.gyGjL5wtRQffu1ltuV3CEgdYuLujMx8rbFo" + 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