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-518985650539.mit-edu.top/post/4972165038

  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-518985650539.mit-edu.top",cType: 'managed',cRay: '9110506c493c3926',cH: 'odjpQ0VAXqoiV9XOPPiCGKbcrsDuOOdRslfOTlzT72c-1739402477-1.2.1.1-DQBJTNx0lSORoInRZ.s1YWzNEKaO2GolbifkE4xf5Gagk8Way4pDrWkkeE_mx4mB',cUPMDTk: "\/post\/4972165038?__cf_chl_tk=5xON0DGZxMIrbYG1rfumAEKaFqGH8ZXth2kY.3JJtQQ-1739402477-1.0.1.1-NyxTPLTzey_9o2kUK8m47ix3TPyoJCJEf7wOM7xgXVQ",cFPWv: 'b',cITimeS: '1739402477',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4972165038?__cf_chl_f_tk=5xON0DGZxMIrbYG1rfumAEKaFqGH8ZXth2kY.3JJtQQ-1739402477-1.0.1.1-NyxTPLTzey_9o2kUK8m47ix3TPyoJCJEf7wOM7xgXVQ",md: "d.JCwghRwBBiJmjCaAN.YNdHqHu1ULs2oapykatyOl4-1739402477-1.2.1.1-Gzplqj4kHowNd1up83s9hCpNUxp5odoPDzS1.yrG3Zh2LuSL3KOe8zLacij8ub4LJ3N.PfVdcXKkxGv9EiHATu0AyfMUAf40vvpsSswL_GtU0QQbt8llT0vVifZ0o8WRoOENTUxXaaBtHPXfXlnJxb8fOs1kLknukWMcfK2dzCvVmHa8eM6sa54IOGqnbQtGK9N00r0pScZtMW3oEnzbNe8EVbjSDC5_Kl715iMPayvBsPyrs70mx9o1p15UXIiCT_PKo.nzfiY_NXCw9FjZQPG_WAaOkCYlE6U_1F7aFNq5kweoofgXAnBB0MZGgx_sNtvh7GoGvxt9qobea9glX6Moo1q6zd8IrOQuAcdOcP0M8w2KL3.L37Zf799ICQVhQVRUikdOQrh_K7WcdJWY6qwZ43tjr8jjaf862ukJbW.9dzcLe079xH97EcCFVlJHhvGaS2enPYVLrCFTzrwoeHxAanif9HirkVLiWZn9Wotw_y1nQc5jDVy7sUzcYzr7NhEw9dS.Voi1r_xK8pkg36jDfuAfj2r3JWBm60CmlV_O5E3OfrqCULNT0og9NwoV.AjPDT7nBFKWZuwBXaojydANte8kwVvs0FlIfuvjByuvOtxA0WP2DS_g.fZ4K4bIcT6Qsg3HM0Fj_hUN9bwx4dzIOUbjAR_GyrWjKT87op9tUDMN6Qy9DR95AehZsfk0XnaebwOiTHdcjbdndXcPjQxHiteYG1yJ5Y8VvBnTekA94QJE2Fg1uDtOHYyyCrsFK0U0Jgi5UjM8MvNTaIBtJWecsjyhUkEC2adpnA0v3tHZKycwaOPV.47gC9tyrtHqXNgTL5VNDlvDLkFsAlukf3s9Oh4Cci8SxDZkACz8mmmCD.6jIvcc6_IraM3.CTkhZRpVlWwbvTbcAiV2SL2ep5oz33BBIjtMNRRzZRc7gSvL.X1DlHJImECUFVd6uvqjM2Gj4qeltk985xIg2v.EpbgdJxgiPghF7zfmsoTE3LUa1AkSRaow0Wb.n5i0O6CxXzJGm_p56uK74wD7LGhvQ_TBUF60MarjFb84DNzc268K4RKQHzAifTq_OjpbJqhRwz7IMfLQOf.SzfMMSv71FB9hlp8AkD3jX.KzenuQuCWsTUVTtGzWda4lsm7vYwelxu.q3Z9sF_8EdG7CppH2OqF160Bzy3_R1HjkuJV.153276MtdX41mSzC4gyiLTioZ.yzTuWGS7zc18uPUfYtmE2tTFDjef0dsHdONmAn.PzsC5nXqBj75dW9vPeMytiqrJUCt_2SdeAMjXvA.RftAd6yjxZMd0IPQi_2rAQJwC9rzRinMackSHI0chIXe.zkfsj6okHPAC0glZk3Z6IQxnXYJtZxRXoogESnMrNj2ImEJS0pXCxeSj_aaewSxb4eD.wW8HiQial8FaI1m3dIi.eXBUk5PY1X5Fzvb5EZjXzvxV6zek.zrGsl14OIM1t1UHSE0UXBuc2MYN9OyF_x3.C1CZ5VmIMbhofVDqV.XKaR3ngptZ3fkJcseic4pDvvNuUthqxJ6n7RiICDtaFZ34e3gZk2I7lJSpF8rxiTVH4Heap4BaT4S6kn3Rh88zt8CC4oZWwuR07BGhCUhIRSYH.Xl01fft9U3CEpFkwlkRpccThqjv.XN4ud9F1t9ImnQ1NuyziRgG80P9kBCSCAAt6pwQZ4jdXKJNt75_uMKVuj0swW.bOxs1YVYjfEohge7UYIjbPL2fIoh3zFNCLeafgkCnZ2cQzGhNHZA9oWTJPs51O_djwmm1_RixqYTGUAFmP.tEJXq8AgMWAxCVQqN__iWK5PDq28yiRSKH3kCONJDD3vW8IBXdBsI5bfIdaJUJxPo7ZuXshaFWKDadDKmoy9.H4kvpE3fYZPvSuQY2zN7JKtExF50dVFlVkwKv0gUqxTUtIVmZHJ25Yycw6ZG77mbh8uo3VlLXypF2uGmxcaIgeY34G_pPK.5dZGKKtjLzotijF1tWXsrrGjONztCyu4a4WE5OqHSaYeqzg1Dv1PZia6eZbdDpHN1s9TqAVVudBvzoUcc8IjWLyk3EvFbZ1zmjVCkap5pDl0ETYWUnIsqUZjgQQhft63u_VZsZQ1e7UXucJvjVHJxUreI2upb0mI2qM85fX5_S6uExEYhUDPQSxhdgQqDPQ9DHDqiZsBPU_UC3.zY8foH__Vmc.OloLjEnK9X8M.iCrqMkjZHG1YTW5rUPZtmWN3a0suiVeR",mdrd: "VGPpoDiZYfVOVT5__cPCEkGb7ci8owh5ZaA6dQOgHYY-1739402477-1.2.1.1-DQCaKnc07Nm.nJHTUTtJu1vYbfZuhuMuQS10Ms2MxBQHMEAKzMEmkkRdUeunj.bIgbYuCwu3wBKvdSAxET.xnrVoHhuGWZ2ETWF6AepxMnlf7fq3SrDbslJCl3e93JUHgyybk8UglG8s4zJpDCXUxPJCaSiHHVwqhQKBjtWW9lvkAzQTUNpd8HG3yxI2GC3RslLVFu0xb91fiEuuJ7YcqxO2AMACTX2xu6cBE_.4J9ULrsKWnLUtOIJrW09OgVDktGtAdAAlhpmSL8C9Pie_J5iez1qHvxlTwrKAdLsCb0wUlcB.aLKkr9z61qK9lmtDLk9X_4LdJMoB9ZidsAiDtS_mnCBX0EVi8WnEvkfkYUD6AVanlLn9EoU.hbGOvrltTdEczXNxdn5KQZp6xjW.4Fjty0QWX18Jtx96C9QEk.9RNp9eZU3CjNVWOGeyKdyP2dBtoU_yYgAeOShr4bZ.JmI0goNiKU2KIF1jqxoJroq8qQdNX2kW.a8ezp4hfy99m8VKnZfYzxOBgU3beECGz1nlyBeq3RjaDvm62WVF2sET244nN4SBFfP70KZ5DKfUI3k6eRo21nZcUyL_RsVdQH8IvWEfpcBPVpoB6QqfQauVQ.E7lHL_nBnZe32dx.xa_qgE3ghTtVC9ZW7f450RgzoI5qvpzP9yg3b29MXZjP9gzupWq9WyC2.aSvTXixQMoJWq6DZGCNs50Jzsp_Y_wc8myHKGNd.Fs51vMYKBtldVfTK.XYAGjZlT17gONnrePmpwxRMUlTg1r1nAQ1Htht3YSVZOGmTEyZbIOt7wXzPZjVlyBUIKqww4hhxQ0WjxPum53sGKHEKvvNM4cf441WXO2AHny5dOExU6vDtLEFnvhbanTX24hLJdm82e4_wvhblhh6ntzIt8Vq14J35_H1y1TLUwDC4hMu6YD4oglyKkw9L.ozulw4ZXogjpSlw2Rl3h_87U73AsGU_Dvk38ofEMjU2PN4nwtaE08_aq8O0WJn_a15IR4tl0qGaG8EJHBKWP72uttueGlc0tWi2gv6WabVXq6kaZ2uSvD6itHhvd7MU6lfn3YPC9Hrzln9IgXIZDCv9pDUejXBtZGWFKAveZn7pLq22Js0lZSis4mDVUoHgsDSIQ9aBDYu.9SEAnPjvMBKnH1S5jXpusI2N_zZQ85jifNMWCavVUZ_cDkawJ2xxd5xP2fa4AsJrrP3IJcmHGKD9vdxc4p4BeUK4nrqW4g4Gn7yjIpVHtGHwb8fEfNhGnqWTw7JamZRNwgAAjqrracKQSqqRWaCdroFiUQnh6_UokVkq4zxFqQbwaeFInce1PZu2MiBOHJV2_bQ2m_LIm7Df.lu1AMpObRDrChTN4_wjFP03st4h7pLwU91TRP_huDUA5F8a01e.Q6xlnKShPU4Ooq1tm41T1QHb6navku8j8rMDnTvtYWvRjWBmEANNwAaZgMrUEafFS6Is8PgReOI2BPl6jLk0eC_gQHnOZFv2gwvnZjvEv5TGSaT.C8DvXTKtU6j3_xf.7jif8CgJg_iqcvup5Q4AU1SvAdp_r53QQND1G80d2CnH93Ld9k84VjskV1mBAIHH7M5FARb4.J0XuDiuEw9yy2pw70mnBGPPIAdQM5mu8vF.fPUvQIORTWb4Dz7scsLDuc_CNcogzK4sOSvRbSiiKwyRuMaa7wyZH1NkbQjBeftaNNyCwN0DcEUafzWK_U5Edd..Qxqu23Jt3uP4e69H.dymgOkWMiE8aiCJPd6cqTh0xyVOvX5YhwnvMAdFeeoZLrR9jgV54lNTbqWexuiAHz82L2eXuRJO6C6wSiJecURsN_.4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110506c493c3926';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\/4972165038?__cf_chl_rt_tk=5xON0DGZxMIrbYG1rfumAEKaFqGH8ZXth2kY.3JJtQQ-1739402477-1.0.1.1-NyxTPLTzey_9o2kUK8m47ix3TPyoJCJEf7wOM7xgXVQ" + 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