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-aff0iq3df.mit-edu.top/post/9326170845

  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-aff0iq3df.mit-edu.top",cType: 'managed',cRay: '90fce4e0cd093b0b',cH: 'QPDuwmsWZmUGd_lcWU6eGVO4Mh7g1KRWiWklOJcmGbw-1739198843-1.2.1.1-h9EB4KdjOcbTr_VSET.LsC3kXK5x7FytldaSpY5ig_sHtq1ZDIknDR6oK9IxJ.lm',cUPMDTk: "\/post\/9326170845?__cf_chl_tk=Cq8zC7IQ.3yo4EjggUju5Ums3_oGW1T1gqg1qksXGnQ-1739198843-1.0.1.1-tsTzWnTnBli9fk0gerttD3y2yevCwlY5ZkpCTCXE__k",cFPWv: 'g',cITimeS: '1739198843',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9326170845?__cf_chl_f_tk=Cq8zC7IQ.3yo4EjggUju5Ums3_oGW1T1gqg1qksXGnQ-1739198843-1.0.1.1-tsTzWnTnBli9fk0gerttD3y2yevCwlY5ZkpCTCXE__k",md: "jjqcVMiVcupHtvn5_fwu4Eo_0659YMvm1QUrYWEu_lA-1739198843-1.2.1.1-nUejQCdcGjCk0ZfX7id1F9Avf1Y7mcnIb82DecK3PS7olxSu6TIFmOZqmYcJfEKCBw9b_DTXDsKgUmQcpd5m3nWHFj5_g7ppb2kBNRbmA1PWUJTk49gpGqUTWtHluVh7AwxM1_I5GBC8pkUiFX6y12gT.3.G6SEw_rac3ibCGNsztwowwuN00iBf8it0J3B7YslQDCAgGAeOx0Qz22S2z1ryEM46hdDTsbDh_EA3cqEhAfqZMs6vIDBL9LfxRNALFl1IL5ileb2lxU0RppppwHmt7Vu9qIkrzXLQfIb5czdCisrfmFVZWGtZUmaqJbQZN9RQIE7YxzAGTZhsoYrF36wO_vPXH0yV1VaJl7dTHT4SYKPVQ2k2EP3j5lZU6GWg05NOTippPU82PnqfiyVZ6AayQrN0BhGY8hfA0K5cM4EwGZ3hSUPo6bImKIqlezxbj5j0PvskvfBK2a86vPpjXnfmy5Pd9ZzBzVl5.mKCCScVEe0nC_L7uw9zH1b0rr7eodb42cA22IpkSKmjCtCAA_jOcITp4Sk710eYFeeBJOcSEaOJPoup_mWYKsDlH4O3sj1P07xM2spbN3tBzFBv6JHwukIC7K6R9CPNvaJpiwnKyN.J_2dwRsQXSlxu0dS2NztQKhOgmQ_CvsSTxLf6yzR4NQolOdRQjiO0dn4dZEfNq5FNxMef1v1Midp0U0z9HSjHCQPjTJpOZ5j1vkGMTmBTzuJvoMtQtORyMqVAL0QR0qQwRUxQu.0ll4A0T9VLdTe8bYkZ32z2K_pnxTbkZS6GbgWwl3GTGG9Ef.QePN3yqyq_oWpTEPoJuxGcmGInnKjDJyRMpa6R2nzFeT8.Rg11ZXeb3QPbXUYDzOwYuLd85cUT5MEv6ZG3WmcXY.oxKcMJKkZbPPhuDvDAQ6ScpLrPO408CARHVWdidGB0QAO5ue.jiGD8buf.C46gZSUsxVOkyu_7O9f0fn4.lkuAS.yTqI3JbZt1fq258SfTSWkBewZdp_1r_pMw336BmHqICOkcRR6979147saL2A4ZpKulpE1fPD4l_63eRFHuICp6R.Aj.vV0h78GkRJFhctDgz_fzLk83vapoHpiuuO7VkkJ3VXddeX01YTxCtRRMgOui.AM1NydZN24_ee9.Kc9frTcqYI5l.kvXdIsKcbsls7LS5MsT7Q8kFNmtW2JVecmjZd03kX44rSoz6VECYdIhtabUf0TVQaMf43Kg64Ghu.XPBMq7_g0dQ69KPihuTQ._2Fyzp2dNX5U.YlEWu9kU0jiE3ZeBGQa2E4GuauD521btL0CvWWxCQEGPzJKy3yALxxrMUt2IqiWBu3ECDwW3gOBL.dwfaHRJ.fTVgCWTn.ab2VVa46Tcmapm3xT9Z83CDwTBH959BfbdjVz.KHr7kMLua67WpwnzBSTA.uFqcDdSplDYSbDiGQTbrpjlmGUNqHLpKVf7jTeMRTUEf1NZ8mxTrC7N4c5WURICPe8Wb8Bd_48kYU16ZJIXrNoRBfL_2JzamND89H96PJsdM83WN6hRrdnwnHkKhXga68XdqS3qmIT.GE49xy1ys.1sOZDFVfZGtozmPQXf8KhzX7cPsDyFdg8K9lf85YzfX4VG1aQxRK1kr4xMZtRSi72_RO_uMTjmHVfyIk32hOTIgCHOdlY8wRDZ0I88iXO77.nAvzj1Stdfprlm23R3p4h9jk_dVwX26NKjbjZILzi6VJhpNgDcQinlzycpfp9wzbJoTioPufBfL7eKprfg8ipGW0Yo1LCaUTB3aS1XKesw.WpZ3Awn7B3SCe.OwW9G4dhM1kXcFCGxpe2wfsECilJuCxsss2YyrtyquXJfObSQ_NrW5WLpCoTxAGOva7zfoiv.CxQBQsk87CWLJuWSlJgKxY9F_0ieVmS1Y8K7ymN5n2qQq6Ut7L0gvLf_Lmhz04h5Vt8bWniggdjhtVHNKwrbTJ_PEwux7OzDJv.Mf7fGNY5x88euruZN1Fb1dgSQ8A2qUHqiZJt1duZdHqQ3sJ5wJVu6R9rqwgFdIM9vy2W4cibiW6neGFzLFsUyjqC9nVX7ddURLUMphBu.eQGoUp_cMcMnV9XYX60DHf8Eojg0UmIFcuV6hMcs08P4ixDt5pWm4P884CfXUlGKPgjVE6k4Bex1ldXU9Jm8TwWQGw1d0pKOMzy7TspJMVYVa15ZcwDc.9iFL0LQuiQLn7UlWnoJUV5L4kh1w0r3PjWbSFCbxw2",mdrd: "98FiTu7Evs1Yd8ArBXgMpJqwe4EX3d3FmI62pX3lDXQ-1739198843-1.2.1.1-kJV00OXGgVHTnNCqIdBwQvVfUUbrWkV0unrgKsSdCxdv049gixbnzgIXt1Xwt_nAYzKvfTUNTYZRZ.b0351CU9hEQjeBndRO0u68C.EJVVy.aAVxD1zFYd7ZpCQzBq2bHEv3zGlnkyY9t0..miUQhb6aZDX6hnAY3iv41u1nI5mqHz4T8XSS_MS9uRdi_IGeTJaXCtR15es0hI.Cpdg6vaOFx5BlvBXNCVzGuV.hjD6wIzaCwZzs_tg9IluYBLskpGem92JVSbUKhWgObyDDrUXYNqLBx2UetdVoD0LR6mgJ6tbdP4IhVClB5MLKovIn9w0qY9WvLFuqJs.dnslfp7Xwt4emUZGvE8FWklFSoQLKM.EPbA2.ZnzAM.GoCR2wGXGrVpM3XV5DKjvdNKUYd7KX63yTIad6JaVxLCZJD7eBMM0lgmsFDhEO7zkTNz1f.AJMhypm.N1aiopbdcVnbx8tOi9qVt8Oq5ZxPYk3KMtJagosLhNDVnyL2whmCDR2r0ieg64olffNireht5QlkHE4wTrGlZC62FYTebrXkSZtyBr0hF4k.b0yfkEN3wMrUMDPThp7wqXfjMTBSQ__cTbhQmr95F_bYcVMV4v1.bx7SPaHa6hEKYRBNaGaK4XdgvJwyOs9HqcIqiDdq8I4XTMoIAHwzdKRqdyFqodsLmmqUkzZbOYZ0NRo8Pfmtnn0Yd6ee0BbdwrBWA23LO2SNOBE3cgdNCW8hgnDTDpbi8faDbI7TDnIkbTk26w27b4_bLvkZ5Yaedq7nd9r3MRWf0hJRjSKPfOzXUzJ7YeFTVIH_THPWlJ1JNS8t2GBRHJXxQE6z7O36p88YNsfrv1fzDdIKBXXHzWkjAVhP1Eu75c2jTzQ0g8LSn72acThhAg6HPPUewNKcVAW7t4MF79_gZt1o3N7A2ifFoRUHHwHiRlWoKfdnzfl1D5PchFpA3MeXb6vcwZfpi7lVMWd3O73xrN3Yj.V.1xKHmP8WYNyFn7_V_3cKwrlTVxTOU24UW4hlsIJmcQJKxKhrh3Kr.ufKAgQ5yi3XqBHNLnYta1DQCUP1h.JKli0YDOzyr0yVeEhY1v5mk2CP59mUazmsESSvodep50SByg3WDH3lyQ9XTZ6xBlu8v8b1IgLdENvVEoXcwVpsh1FnWSOwAb5l_hNat..WkCA4XF_M0xnh8LK3EBazg0g_HBbd5sY58RdOVsoVb3SrLUqlZWyPKgA3zSyWc1rTAeyjQEba8.pvsLTFFjZUgKT7GZ0HMvJOo.T7ygNPv4.5iLqoEwC2AuWB8pwo3EAXS8QbTxcl2mG42Urayu1xnf4.WsXAaM7EXPIPekvAKTtPH0DBJ4BJwf3aYpw5q0TIKKtdlr4w27xgdC9p.7A1fyPBoInKmlspgqn5zmAWY44TshNDiDK4fiVhmPV61fXXolNhIjlmhVJhElCX5sBddJ7IjIIXbiHKUtBG_EAjTO824A8ZaHfNRTPXGhEvW2X3f_EMkO8bhMrB8A.wtc9nNsx42YmkWHNnkDrgJfOKhW3JO7ON0QVDqM2XL2RDkSwV.jnvMi18aBtheloiL1a_FI_yhTC_FTLVf94MFu9Fnrd1djtXGCPySAOE4ht33.PuFMR0Mzh_r1wYyvB7el0rlCgcYbPVdUMhJZ5RHRCaWeUXXTQ4SXGtpx4m_6A8gSqW9Fbp0I9ZzNynSsVBBiD.ABsblsL3m5rUM7k06JZJM.8U.kIifiFIL7hIKsU3tzml_Y8tPfrS36IPozOjMk45Y4VhHHN.wVJ4qbotOczCkeL96mLXhrI4sZVnRpCvg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fce4e0cd093b0b';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\/9326170845?__cf_chl_rt_tk=Cq8zC7IQ.3yo4EjggUju5Ums3_oGW1T1gqg1qksXGnQ-1739198843-1.0.1.1-tsTzWnTnBli9fk0gerttD3y2yevCwlY5ZkpCTCXE__k" + 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