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://blog-affjshc33.mit-edu.top/post/5380176492

  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: "blog-affjshc33.mit-edu.top",cType: 'managed',cRay: '90fac89aeaa459a3',cH: 'o4d98EJdmB8LdfXaQTHSFZgkM_ejg1tP7tHavmcVPqc-1739176713-1.2.1.1-4RPMTY5n2XwhgBF7o.Uz_ZxIk88cXkeOTBIq_B1qOazUNX1r1bn6Rrdqnkfa2v52',cUPMDTk: "\/post\/5380176492?__cf_chl_tk=k32DF29YmqjotCdXp1RGR7uUnZeoHEBM_K4g1d04XRk-1739176713-1.0.1.1-oVq.BlmYBIRQAGYF.i31Cmffmecs6i.VDbTrIdj_QnU",cFPWv: 'g',cITimeS: '1739176713',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5380176492?__cf_chl_f_tk=k32DF29YmqjotCdXp1RGR7uUnZeoHEBM_K4g1d04XRk-1739176713-1.0.1.1-oVq.BlmYBIRQAGYF.i31Cmffmecs6i.VDbTrIdj_QnU",md: "IVtQQYn2CR_nBIv22kfeTocbQOn2xQFsu6H53kb6aNU-1739176713-1.2.1.1-feGZKyROyUNLUXMsEWw_q_uBkYE_tbx7sa3_P.2yY78zeE239N.yeOhZOm7iyHps_CbM3.H3dggb5of2exWoPhbHNO8CS2Ex_dJyiRjH.xtg7kR1PCv0nH9VSW_MXbX4SiFWp.qFOb33mwBOWDQPeO2ubrCGpWlm7DLN1fx8CL9O_3ju40bi2PFMeyymH_HUI6Tgenl4.NQhkQU6CAvNzhX0SL4w2oXcuzVbGuIuW7GwKN_9j9eIc1FZlnIhIv1NDg0N1qReZCjNOoNDiD8cw4398ee5kBVXZlkUTjm0LNXiOP2Czr916ipo1f7k6f6D3stTHfi7IeXMbz20k.3FZ_k9bguduEhgeKUdeV5gcFKzYFrabORvXsAf1MuM587JE6N1bmmcfh.XzPY5i6f0T2zEI.nF6ylBpq3CqQFzgWjWPkav13e3yZNsw4u8_NgI13iuOFVnU0bpvrVcD_2DI3C3nrYhepYHMjbo_qS3wssXIY3CYU7z.VEQ4RBVZRNsgK_HObf5YRcON0VAXRmi8aTx3yeITDwUrRnmNbpi0f1nznd7SUfgpSNPYNjuTR6gqLLmGjOOJXgMoisV8ZcgYsgjfhgacYAo0KkjPXu1w7OzCco2aO9IJbfk3N.g8EL.9NtnuW6Rxu07ggtCWJ9jzgcsfgo1gk3oFt9fqwy5suf.iimR.udnKfCukbLHPhORj4wuVTUSpCY73M2oB5CcK9uHZ8QVvg3bLLEJFhaCUgZ7utIV1h6tM_hyCj40hXDdC.TTVwDuNFjhg7UYNIaqzWwkvArv2eoO.WdcPxmD.wl5ctz_eH7hG0QkE895KESvLkp0BUmGXBpEGR.GFKMvY1OeJxiTeKJkiDFY..teH_aslg.96oJRc0VGCyEifTHFNsqaF2vddpv5nHi7lNN4o5cUI0dUekc7fdTVwyK8YtY.X1EPHFrgxoGER.R5DloKJbW4GNgM0Gyv7Cum3u1exIfKDqtDGlARMgJLdqHlwiZaJRFHlst7jlkxfvR6f4aDdH6L6JrHMYwn5aVG0pn5tjlQ1ifHiBx1ISIs2QrYQ0Fe_TEQz55jqVp3BGpgYngwBYI8I6AXtrFy1vMYf36e52KyUNwyIjrei2NrWLted.U1PWZRCQwiLx3HIYWLBqbTELHkxDO_5wmMelEZIng1GvpTdbqrN_8dFFPr9tqTDruvtb9F9lGJSpD2yFbudPbW384ACBqXqSf2nlIJrUD7skAGkyvbUyZnym.gk2uyQf22CMJahpefVcnuAc9Gc3j.Jil9Cb31j9KWZrHPPngRKMx_buPWTQ6R0gH78QpZ7p1rqoHcodoPlAUpNFz1n12cFXF3Ydcw0jjmECPwm_ZblWsqb4.3L.EWJr1LM8S9uPMwKUAJ08LE5gnpClMUfEKVE55qb4L8mcmUUdizeE1YoTjmKpU.gV2jk9MZHFm9GbpMuKOcPUhAvgrzet3YQcFmbUkdfUe1Z0SDpvYoulp1yWcH2s_jb.FAZ6HEW_1lZDyGH3aO9ZFdL9yyVeXtn5KYXL7KMWyRylmG3gxPx0q2UhFINRU1BP9EneZi7bEOnaj798PIgtqPUUKz2yeKVmEDTtpVLFGKcVHj_IshmFi4kOyZOKNFmm4wYQhgjY7yfw3kPwOPyVHNt_Lhk8mIkFfITULnnWtcs5q3UhhuNyjQEbuZnJg0.wU5Du_ngiG7PBmepI5xe1z6KoWq8dkv34gYdHft3dYATk3ERGS8FBnsGfejhOBI0HerV73kpb8Ke8Jq4TuXurMcaMKmur5.Vi3qs1zYoel.lnDRn9n.y9wGQvOPMS6mB8BWSfe952yaz.d2dBjNNVkGntwvekJULcRChLTbKkH.Mz7XC83YkNuWyQJcL_jMadlvmT8JdBzBbKLvRnmXC2EyRgirBDXuhNw2F4g7h.sptL9WXGUvZoCQ_R8Y9jDt.19FjAPFRt7KX1.29.PCWnCL57jZEeB2TwvMNR6XMZZMWEsCSDyacqRzc4PDinnpnj1AIygGeH6sTfIGrWrTcG1OtiGB945OEGCMZvo.XCTxdI3ULxs_r06ufMf_5Xs0Nj_6hFPJJ_2Y2hccquDcSijWWyeag7a9Z8NnekCwKrHuE5YmqP2dp.ZDBsjYn7mD2BQOlbzWMdPKvZn1UZYKQcn5cm4PPOtzc7V8UCebPYB_M8Mb4m8td6dJioL3YpXp9Fv_qbjoPXRp4XNKqP5DbKfs8IBJJtVWlnZk",mdrd: "shYTp1NxcWziQdiCqO0PLb8rg2KKPPmMM7OgFAWmi94-1739176713-1.2.1.1-fb8.VuOagN_ZSO0BNtmtuy1vDEcE4ePTcqWbeoEotPtvl_ZRHieuZksXwkVUTbcnjuQEYEpHQusE7i02AbPXX6ql4x9wzhSB6ueKVfomAd6z50PjZzuRb4qIaCnsPQCqJySdikxc2VPp_8_f.h6QndaxvrktPotjXPexyx4czlhq1ShoOY8J53ZCjXdEFqCO2VMYozNVnKg46Uy1iBUHYw.V5YqyZIl785EPM_Y8Etq6MOP0kRlWwm_uimtxqhf01o2fxd34HR1wxGm.SR0.CAReMLoWUYvBDiE.yui1axawnMBaKGUbWZj4fgh2OqkceREPCPqo6rfG6fJE3ujfO6CMxwD8wsiDWAhjavXeFd85NXcLytIOn9YQiWj9ybEbWBiBaMDMiMha_EPtO7oOR4RMtzw51JvutmlgYM22ymK8zYLu.I3MEZLqNx_iTSPIvu94QmwIZ6p28Sl98s4eE0WuvKer0BUOm.jgWAmX7rEEFunXDcDlyqnnGI9NoeSrVgOjeh7gXCxnj37XVTHUdp0gQqjgQRiO8vMnfuYRxYXns8Ub8P8_eolD7EUG8f7NElOI0X8HR_hWmpysubQd0E9.K23I2eLsKu8OUviHGh8AekcWnyonvWre.H9RWEIKpalccCWvxvzPS2eSQNEM0jxqPoihfTMwNO7OtM4vgUjElSxM4qY2IXS1NyYIwLrA9eTzFyMMflXpSRcXeUsWK2gTMDkABV_if7IpBXPRFnq9gJjDfZ.lXUCXsMg6csRdPg_aVWlgQXKOyU2HGl.QGHtN.NnWXzfBd2QzwBJTHI17odb7JNnpZC_MF3goKOY1BAdsPJCfmw0VNtwjZNvwlFoqQh62Hyo6L37ixI6uk_Yr1go86L9J7rGpo_i4.VCbErtoWIxMwKm2xFbvo9svbqn_EnExhcfV0Qd3flsbxuUiCiu6lgqfJfq4ESPx64XXpuGjR0q9RdrN8lKyeXg5zWzhEFh0vUSQBJgKfPC097w1J2dYEM7aUJOgfRo4HIVVJrOWTPcwNn_09KIbxxNsCOX1ZvkyLauCfR1z2xwMsanMXtzRcEF_QhvDLag16JK8MuKwbVx4Rj0arCjg0QxT9gqcLdVU32Ak7bKb9PrdITb2v2FmXLj24RC_Pg4iAXRwV1e6NnfHdvvyjXyBJQcK4BOR6HvOvPd5_dQ5.3VyHKp47gfp7zcaaJ4TSy3Qi5wivF2Pu70YYZgB26fSl9dzr58ASe9ZcyONdK2LE9PjqvL5MXud3IQjTSFSJpaQObUCl7X_qmc6A8sh08wAjFozYcAT_hgXfVWMRR97mRIQqedxT_9mAi0s59nN4DUT9f6hDDbUlKRPN0iFjnWP8G13mp_8tUnlg5iBxEmhHVitEtqcUicTyWSsY.oJK4NquQr_caSUQsqjEhwfAKFOJ5t.DTcBIHK6rjkwfAndLo93prBgTgeRvY4PTy3P5QzuVf5PAw4g1V9UAlr9MTY.ivoUojcbXB_ljJbkvi1kbrVxUXEM57TCpjNuFVgG3bddZbxEKl04ZiWh15.UMX_nTjQVZu1tH0adVJLx36c7R7a1k1D8TKY1YDCRoN6wzndKmo5vDLaKMzq5flpOTZl_H29SlnmYwYSkn_e3cQI7J79LPRb8LclupYMTNx_4BHFAt1wKstXxjAWw4IODW1uSgbzOBEKnnl1nsE7hFONJWCgwFK.XGpYrLVvaRqjYuERz3CijaScVxfk6wOFLE0xnHjfimLlmtO_zvmjdIaWyO9TZpR1sKuSO9w2b7DW9fPxvjXP1FAC0mmYHlX2OnCZEMGcGX4cCWzQtZZuyV4gw._.09z8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fac89aeaa459a3';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\/5380176492?__cf_chl_rt_tk=k32DF29YmqjotCdXp1RGR7uUnZeoHEBM_K4g1d04XRk-1739176713-1.0.1.1-oVq.BlmYBIRQAGYF.i31Cmffmecs6i.VDbTrIdj_QnU" + 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