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-aff9uy0ka.mit-edu.top/post/7216980354

  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-aff9uy0ka.mit-edu.top",cType: 'managed',cRay: '90f61e75bb80577c',cH: 'U9klNHW50dvxCnKyfhg0J7hOMd3bU5yU43vJhE3_16k-1739127801-1.2.1.1-MWXR09SW89a_9mRmjXNmR87zPshOoYJ.wqx9GPoddObDT.W79s_g5oGEPfqMJceO',cUPMDTk: "\/post\/7216980354?__cf_chl_tk=25Zjn1s7_Y05A3Q6QwnKV17EYnlYoBytZ88lJeoK09I-1739127801-1.0.1.1-4RlJQUX2cc.uvGa96MiWUiKKy5THXg1rFIqbYJeLQhA",cFPWv: 'g',cITimeS: '1739127801',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7216980354?__cf_chl_f_tk=25Zjn1s7_Y05A3Q6QwnKV17EYnlYoBytZ88lJeoK09I-1739127801-1.0.1.1-4RlJQUX2cc.uvGa96MiWUiKKy5THXg1rFIqbYJeLQhA",md: "dqw9OvxTamTQf1p86AcBIgRARqTsQ9jNWKGHlJYMA1A-1739127801-1.2.1.1-cxJQ_b8qIyemtRqL4xhjnsnRxXIhyy.UbZAAGC77HVFK6TUCaLodmgbCzTlEPExdGMyDemTxlikDu12pJyLxGurIZf1PBtz0ULGJLVW6fSsecJVxJCeSdT9B0Ac3q0_dxqHnisFaBbDAWHE5QoTcfzwdnur8BOJLVHtYlaIXMv8hSOnoa1bGKFgoPP7yfoRchv8p0M1jGU3HqmSUCoAlj7cV223LRGlXtyam.0QePr8HxRpA9lGLYYcVZkzLF38TwmVe3mcSygFFV1bieLn1NejS_NVhvLRpRGjeQdyfPUiVkHwiEgSF6om8shF9y5Rtwko4dic9kiCMH_v_fkuyU7AbDOkRFkVpYwWWq3WYAPrkIW_8jRlsgdHSj0ItTs7ZrNjzXW6cYF7BCGJP40couBm1yaekxwPrGA16qYymB84duOxfDz4Ph2Jm.P0_w0bMCcH2F6kyDbhIAe1XfMnnhnGVD.tcBiktIG628v0uL5ej52tTQl3KwRd8QBuImP3aea93IYEbngBBoTcS5ETwuwz3ppUhBLgWblqQejz9Fqzdl7N.vQ2XKSr4SYBtxTZSTre_5iGxLoijfqWwx7ALu5Lh2sAWF0BreSFqGxzPdt3xJpD7xDINKrgCFD8HqvH3ow9jX_9PyFyxwRGCzMTaNV9N8zbD72G7wz2g31kYyIrW.XtoR_cKKI4zdx0DchEmy_GiK69D87AXoRfQmVmZ4ehjtOg34lVcFicuhUnfU7NUCIKwNoOjH5XOgcEip5P2yGgALHkn8TpSq4BQ4M7LulAsZTnlIQRvxocXDYbZIRSqtv9gx362VBzmPoIvHKVpyeppzgN56XAGZWEGwbky31yH_ZtcRzVEmXMMTUf0bj7pOpp7ffx3PiI2cGvEpjIqbCFYOiwqjOtbRFJJqmS77Dy60FbL_aQeUZZW0wnAmbxVfnq1yfewNZB07eK7zIOlTfrD1wetkADj.exag_jlInlNo3pu6pY.UmRt4BHF5n6kz2au96dl3x_BNjdcsun.nLFbinmU9XTGuKaYRinay96VF0U5gbvhi8l2PxBvbvkq5J_iTGNDxhyGyoKXSyzkWUkfQKd5SKLe81FaNvu7.m8z7ybBczdHTYQ_UYM4LectDU7z63hdBp1TZwJe1oFfLEniRwyE_UysxiR6cyeAgN2v0lXjpCsda6evCanT.X4uP42uPXaQ6yfzfgmeYjEmuNgX5EKi2UOi61YUuUhMPSx_bcLWCI1GOZbIRmoiYj10fyx6L71laFdPbKjRphOTIlBDDkToVukxXRiqn4p4OaJtb99Ubtt5I_1GCtwdrm7J_raJy4M2ArPbgWyVYx97NqE9Z0epECCdNUsltHB.DMMHRYKhS.ZKee1nHm5EUWgz1f8wziqkWd14pjsN6hkk9EpE1I2JyDkeQV8fJ4aLnFg5J5QrKk4vXp0xp608KXQdh72Hol0gKVb.328xQ8DQ_KzBllaiEpCRZioHCt7ISwQOyjYKKYQ7x3KEmLbgealtR4F6R8XHgg_9UyoKbRJNqwdYB7hIzxfL_m1sdsCt7xp4soAQWMQlpk656Vu96PP_RJZW_P4YNZzkF5P_Jh2BJthSFD1EkFmT0yaSsf0UjHR64jYEfwnZ.xevGF1DbqfDBXehxC.GefIDqHsdsHYMhYrIWhTv0Afsd5MBMAP5YCnAKRXaQnpDcNfyxd0979MTk9NjVZnFGHpcnFNvzVg_xc7RXQdKctlO6D.DnNsp7IiDLPZbCKQOW_K.UUKCA1NwIynfm5YmlC51_.Lm5Jv8QKqKoxCXdtRtwLKv7y.n5oDyb_B_orAXM7RvYvnECZ_rEZ3Ylzus8BkT2B1npnM5VDWvei8qPjgxi1qsoLrRUvvQav_yRLuaC.VYe4.nZ7OJ5WMmOqkrV7WOggVrFFhXp0tiHEx_gInjcabtb5pNqC3.tf0tzkPRbsPgvtaxD68Kk4hwJ7g0zTk5hdLWE5I.u34z9Ue_T7zAOLMj9mPwb8j_MWI0bv5FK_bctwB0Q1qdh9gDLXMXu5VCmMB1R4LJ3Sl_IjJiDEKVqSM4H_EjKTT7mroHxX2n2QoZidiW.SfKBdHpfp1UWZ3lTLSvnDoQ9NC_RfFml0eF3.tl1Zz6AEkJQtaCoE1pqfa18qE2Chocp0lwvo1i6f0sEdriTlK6sN97a6hqsD7z27Yc4S1apj1qv5xYgXpXPFaWHHok4cwurdal.Foysjl4WgiRyrol",mdrd: "vaAPJxcBTENL3o0DaYm9WGYOzVV47QK5YZz7Orrl640-1739127801-1.2.1.1-OqWkAEumf024.KJTjF97IyWRWpBruJSEAQWF2INofy6.AdQIrNSletiPBzBvcRYkyqp7iiQ_gXtaRFm2FWg9en8QBC5D7dBzEAHasnyPkjOLMwZMhEyys6CgF9sdkZYsO09c_GGu1t9b5epXLxiCt2.AgLIuatckhkOxCjl7nNrsQcglNz31VhhlNcQsvGjVuepWRxNClo_.CF7HmbcYMUy_RYnsmNW0QWba6NWOfXwp3tU4POUOmVtI721ykzNCpdzN8pOQUJ0bezZeiBiwmkhWmNgTQbEhFnbKxrblWwfbU2w8ZW1MC5Xbtuflctnf8PmhsGf4gqxiIgU4DmwuMXfiHzcwKJmxpRcyxV8Ntcb_7qY.xHaK3D27NCakOnk0Mldx7noEEZp8XMEpJ_7NnDvZjWYMpPkIXPlYfNkzjYVYQ9c3YA91cMSHA0KY88AD0iG0hE.nbmAe444uX83GkycHrYeUxxWqmGIdOtTA.WunGodzAuP1oPeJTKe5pqOLrsTSIdy5TbtHOZcK39EhwkDTAglUjzilwrCyCGXlqeNAOai8OmeBjukjPO2HZLDNp.jAE.9j0vhNcSm4CcoIvT.mX09iZVhmWW6QEIuTknfiH1GeEDdydKZFrgMSClI88ZD.rWO6YEnUWNfj1iQ5UgDCFgA2Q1VIq5LoverBjtk7ENc_xm13b4lHdRpE.MhMCHyINtNp.Ce9rTTyAn264mfrONa9sO92kpBa23HxzV9YdZ2D4KLEMBhVkezWPz33nLiws9h12pCyx4lZ75qMFZcTauq3smy2I2hviiUR8NbqMqKI0WQlu_WKKUZwTbZXtADc0.vb1NGz8fv2x3QkidxSH7d36o6rVYVUi_L8h5dSWPXue7J7eklAIO2nAoKiHLvBL66Jgb.cJr_ZGOuNGX9FHrPk3x3i5QPBZlzfwxEQccpfAoI1hEp_CDMWUJV6SgFj8r2kI48oNO0lc5LNuimv2OzjzKmvi57e_iSSenBZ5eammSb.GC2werHa4HC9RTmrKJdjJDuL0z7IO2rJy7T_D9oJzzOUdHzKQd0oqr4V1_8aDaYIymORtNr_24FTHl2DiE9Hxc4XqJIiztlX2uU2r.KSKGf87bm1N27.TM2OpuFhfe62aGH1G7pTmdqW0VnASgRIyhXvbvwGqbwdzTt_V_AX89tyJta3hw63LCXiMzcGN96LlA2UIHIywxWS1hOPWNWwJ2ld4arzUDN9sUgheiiN.frqHbnSxRs1SlvrY8bJ95x9M0PXF61dUOeDQETDSMV1Reb3iIyQnBYNrv0JhLgj8Ov5rcqWffWyNih684AQMpPRFC3iXU1oOcoqmQWGfNgfEvQEb3lWZv9jEAsP5NRnGu48QsEHUXQY2Vj1f7HyK8gmv.0TFLaiIo7RLgUBeKBP5dRToNR1MJHYXSOa.YoyfERxOxtj11u6uItEGp5O8LOm2G.xzDdIB5LJAwYclYqHy_qTVkrFkfeoOzbKOYVpLZ.eK468_ig4KwCOcCrFjZDIf_aVWKrzT0fTA2yHjxZ04c8QxEqcXeSegislUPEI9ltyk22sqn0881L3AjKNG2L.YtEXl04vQ0dlqA3yBKDbjqXyasZ5lljg0Cj1cK9TbazfGo3p3JD2JlaYg7YuZN2qkd4szUbRFH6t_8DUQIyHXVQEdEi_qfFkyyP5RWGB7h6ibtPOPiBFELDNaBjygayAew2ac5kTYJBNyoNaze73QvmrtoI.1yMpVcxKvNbYhB5VG9YtG.bIMA0Z7zNfkS5mZ2U8htc0CAWgm6asjMIon_0.WXNHuszwEsIs2AxPxzoVtYUun13ACmE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f61e75bb80577c';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\/7216980354?__cf_chl_rt_tk=25Zjn1s7_Y05A3Q6QwnKV17EYnlYoBytZ88lJeoK09I-1739127801-1.0.1.1-4RlJQUX2cc.uvGa96MiWUiKKy5THXg1rFIqbYJeLQhA" + 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