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-8932064715-gov.caltech-edu.pp.ua/post/341860954469

  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-8932064715-gov.caltech-edu.pp.ua",cType: 'managed',cRay: '9100f26b5ad0204b',cH: 'hUgEhffHbuYR4bqpKUVcazJPLEf_9GgHxX4PYDSx_8k-1739241340-1.2.1.1-26BBhTGT_gm877jWxMw.xqHziZ2U_3LK5q11VsOWyXuFU8IXblQF_C1.7HGseFNZ',cUPMDTk: "\/post\/341860954469?__cf_chl_tk=jCqCBDBt2QlbA1IDDC3i3zBWGKELMuU9Pz7aclQZRWs-1739241340-1.0.1.1-aSkfnXBhXJz0ZPHBhRp6KpBWgSZneh2GFc0kz9A0Dmg",cFPWv: 'g',cITimeS: '1739241340',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/341860954469?__cf_chl_f_tk=jCqCBDBt2QlbA1IDDC3i3zBWGKELMuU9Pz7aclQZRWs-1739241340-1.0.1.1-aSkfnXBhXJz0ZPHBhRp6KpBWgSZneh2GFc0kz9A0Dmg",md: "6nE6C22gAX_2_oaSumexCu1xdcs2SgROYqGbAo6BSNU-1739241340-1.2.1.1-rmjKmK.EjMCF0nEIzcjxOV_6ydP3fgDHOmXR.2he8Zv3qhRbas6EljAwdQBbJQqQWWOnBwgSef.0E1R4d7otzjWhSBNmX6.XXWXmHz.menzVCdYRaRWHehOKsqopNUIAMge8lfBBDglmQhEepb6MdiP_fAeMSrc9PEe9Pyx6Gf7bpSD2Q3SZKkTaEUzIbR3LC4F_hy2O8jEUIFTa0f5KN8ad_FcMop8zVBjLTTx9gVV3sz_9PqHhpXvqgdmwCm6j4Wyqp2SCCyIAhkfC01RnUvdiZ.beDZk.nxJLNPD1JEfzg7odekC8.y_bFMYKcuEZ6YLLYE.g_xmaOAUyIqXGLcOJLIwIccUKTA8EDIQqIQPWI1phJMxTnkjnHMGFR1cuUcNUBzi7jihR9UcjrYQ6AdoIKToZyxQszs9hAc2xwDY6vGSe6.jI_1R109P0i0La8FKhcOmD5O175zQakOZ2qJFkjd5BcvW_IP_HqewkOP5g1VZ8JbDVn9iMAfbWxpsGllb_HNSKUnJokWzY8wcy4Axclw5djLOWwLEdACQJnk72Nxx4ZzpjaJgusujX4i1MzwrWd25MP_m6AKSMdMmDoawt_XUpmDRcZ.9VxukziBbYpijblx_kEdhWV8QCaYxJ8sSkRhEwawdmY5ZQjPyUxVyBS2jSuylMrXEQ.uo7t5MuWVG.ODhYtRdgRsNGNdQXcnfMEG3Y9BikwRtKb9mOUG55FouvGsgwhGdwRlHRXcfUrp_lF_8qDBCHwvsVsuTN0UshvAeoxq5scz1sWKUnwlzo4_fvpG90TMy5LbZ0AQE.KPgQmllXaNBby8Ivfjz2BFnim4RZfwAC_VIcohh49lyGQZl2O9NDwUjSvoAdxQX5ERBLP3MU3qiZMcLhfNryqAgrMS7FOirBrPAyFVI15jvUmW4JDHCoECJhTm7Ad3KBXLOSbdoclPEEHkR5Gj7FIqQDGIN.3vLvh4xrRNSatvzHKct85ttzCTESu1_ZhuSqd30Mym.QjrbtG9n2bDCiqg9OFLx85wQ9yzeGz5m1zJlQ8sG3gKPM5JKkEjzR8o9YtYhUYX0NKNpnwOG8c2.kWGZTGu5WqE4ZkmZ4yJWrBkEPo3CIZTJAVwmsixXlAyA6kZ21NXKIETL11UUHrZJZAJB8q96HAQkn_2HgHHFecwmnWgKflUZHV.T4H7p8WjtZby7M49GM8eFs9NXJKy_NLyzypjXRUqEbjHxS9x5P0Qugt1j5YNVaDPUP7Cfi545iao3vzKeoSHoF4QrC04IsMf4tQ4zqEp6NAHIpHhXL4cH4a2QvnY9.vuyhf8nLFQmpyNIF3ih2fs6paCdLOEbEx52zl8GGtinkEVflM.bFKDwxCfAiW7tEVgMYB.tNx_3X11eszzakRdpe4zQnQ08XITagL2lVsSkcPn02p2yoMqStJEY3GFCPor0aH9fBHj77Ums7tUSYkQWLhzMgpbNITVkvA0jqYQgjqY3iSV664s1j336cMmIEd4R1CYESjN4kmY2VjvhyA7QJKn1BBHvLdCV5tWi_b.w7kbTQAo8B4CTX78imSYTgkI.QpH9jIPeDRy294gBWt_G9icnGDCPZpwUEDqGkS9aBR6NSa7_kOweCGqR0FrB2t9EY9eko40PZFZBawu4AfQFtYRvcj1e47GGBzak67Bjzph9iyPFIbV3WczrlcTZMq7vBMayOCFttaK_9QwJIMCbLytybNRfGq7WGODcfDW4HP7LQSyRZF97L6ZD09lbB4xQaSY7C90_kRrmguVEouM6ixknG9hvbsLn421Q5lu1QzRg0IPqYDXYkYKttR2JoPgc36I.Jcv8wXRodNvQjHXo2Q0MGoflmr_LtgY.R_8t7eVBqHaUWnt2PG77V_FDt.p1aWdcI7HKVQWo.3Lzhrcga3FzCR1BhapmvgTAVmt.JT7vDj3EXOrTxX9vGfHLJkd2GIbXPuxGq8kXFghJVPcug6xXoO3AVmM80hhP6ADQTKrxaoC.nXrD_CZsWEUTEQiQUmoMmB10PoN2f1LDPdlAv3XNV4gaLO6otNVrbHvLseSRJlBzXIpGJ7z2t2PeSl19WA7RGc5GOvVoUBAdTI7vJbhea2o5tBcMCjqYcBb689UyOcA4rNRy1O.303ZNsylJtZhRx9Ct5Ps2V8rAlzCEGgWVPwtPknHmerEiWkyQ3b8tRQu6VOaivReaefNu0FzLkRAOnem3fm8wVpxy745RszJ3qY.OPakiaLeFmuDzxweqvO.kyVw",mdrd: "wazwQ9OSN5lJBvq3mUHq8CA3ZpLpZ5zihsuA5LqrXP4-1739241340-1.2.1.1-hKd0rDQ4.JCjrQGIt00IBdG9VlQyHLq3VzPuUWb_OLPv_21nks6dzRjzJgPN_dUVR.lTQwSpiFY1dJClu4lHyHVLC8P1zTjjTTSBAKd3U8oQU7Jn5LZP1LLQwERuRAPMA7_kdG.1gei1tlnZYyknyR6sEYeSMf8U1C3mKCaoJRJ5kR8PNs_q26UYhuQ6siEq4CaQIp8IlMsg3E1U3qnM_M0jpJE_BrARVeysqCSAdH4kYAXJJubnh.rT7y8PUFRJtRgEN3baqwT9nACOEJt95P0YowDxu3KvXd5Xgkqi8e2u.x.wbkA.6hdKmbr0ZKUqqMAOAHVhJLuSMvYisapVKVHsce6ioJiDcfWxCScIq5wJkcXNkJmju4QGwDOuQ_DHSb9_gGyLrvvDgNmju6vB7nlhy4DNyMIM_1pvT4bfhihgNfcOMVzaABv6t7pAr4E3OugR_2mDsiz7gik6SlKN7622XtYmP769EWB8kS1yZ1_4h_51hGtHhMbrU0ZuO1HBblgxu4uXIWBUO73Yh1sAMOJ5eXtrkINe_ygusd75aH9UYvopb1avCS8ATdn2suXXa7GQZPKdG9wbsLbpZkrJUHpzzKQ86IdJUfu2lnPjY2gf5.TX1Dn0VW_6xNzJBLhjh3.l8LQ7k6sftBIsM0AsXyB1L3HpxTpTv7J3E_Jf1z55bKKTkZoSUaayLatrgmZpoL_4HfmyE7BqYSOrJ5JHUVnrC4Te5wm3ayTwHdtm2ZGPOxCcQncMDw02p78xAyFVh22J47Ne0WQb._nxDXu0nFyJE0uzKfsKh.AkXuEGsQikDZ0fAnxrOZwrEx5sf0ZlGEHXLJ0Ofk5AK1zQ7r965Wtw2nfENXUEt_oDUxHvPGj70htbeu9NpUEMJ6e2vP5E90CEo1Is017ClRDb9PpojLlG.xCk1t_0bLznKwWqd4fGuLBGiMU7KhEC9Rp7OnL71a3jDNowK0dhudwPrUZNIaE8_vJ8R.G5ut1.C28CsCnE37crfFdqHGCijBMinv38hTGZH8tFwHpL4ONU.LzquolEFOY_zO2jOmXZfxl3DCKeuojZZmjbBJFSiV7QfS1zciuwDoQwJ6UqjZ3lc_KBTkqDhSdr62q1a7z43QM7zxTYX23DbNlAP_3HDEF7U3xyyE6BC57UOZMjYxMFbRkhRpii1BF4MFx7pkurV.awAa2Dk7Ua1FGf1rrPTpMNY_s0l0Mb3Z2rXi9.fuIzf5Im_X_RqK4f4rtZaCS4zEiuto4iO7LwvDkOwL3Fsj_A4RXDPdJezXfPRIV0uPzKgX3IGZK7Ql3.SvqCrCVfzwNaSnZ2_lamu7qfPczS8abv3UTjDPPKbkzP06tIsLBbyHdarzrn7CYroexMetIdF8xkmscVyTe0AiGxkAnLDbxcv2oDo5p2kvQp_5MTP6eLb1GjezqzJa9Dtnsc1jGMAbXY9xAmS1UgbF04hRTVVdWMViu_YGOvWWA7Xqtq2JXxtzqqsbikkmnIzPR7OTmGARMz8cRPFUFA.OP7SspIDi3cO3IzuuxUPptVkasM1VP0.zyC_DK6PJUD4IpiDATQ4Is7FtpjxoKDEjEj33NoCGAbbaRjpGLCs5VsFbq0zvz6GkckHmHDmdguGgL4YXCYDjOvH6fJgQFBLBgBzZA4ibe71xgTMhlySODtr8SC98FD53WchMQ_8NVWuRVQwbML9221dxnxO.tiyRC1Y.5674ctdxYKDQ3CXbcMZIUnZLGdFqnUx5L322vzVSpLAcx6VyjIY4YzowH1cV3Jxx7Pvq7rS8hg.3meli1_9dJvRVgvnVdNElM.uKq0FBl4C7E.4zTWbN1f5NDflVAz1ZyRSihw15Kn"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9100f26b5ad0204b';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\/341860954469?__cf_chl_rt_tk=jCqCBDBt2QlbA1IDDC3i3zBWGKELMuU9Pz7aclQZRWs-1739241340-1.0.1.1-aSkfnXBhXJz0ZPHBhRp6KpBWgSZneh2GFc0kz9A0Dmg" + 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