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-affksjtq9.mit-edu.top/post/5294061387

  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-affksjtq9.mit-edu.top",cType: 'managed',cRay: '90f37219cf6559fe',cH: 'WViIIgTWvXrFqdeanN13aD.MXbGbCzwQ96qaPQUZZlg-1739099769-1.2.1.1-7jX6FA4nhVPQj_UbZG9G63Rh177gKRWI4tA9gjPWLpwd.QXyxVbqmp4QGK1uuBLF',cUPMDTk: "\/post\/5294061387?__cf_chl_tk=yXcT9Tfo7bfKFphSOzXvSFSWv.d.nUEvBeR8xCan.Ek-1739099769-1.0.1.1-2Zq3wFEHyArwLE0VqkipxjIQMEQcIeTm7NTWyPA84kA",cFPWv: 'g',cITimeS: '1739099769',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5294061387?__cf_chl_f_tk=yXcT9Tfo7bfKFphSOzXvSFSWv.d.nUEvBeR8xCan.Ek-1739099769-1.0.1.1-2Zq3wFEHyArwLE0VqkipxjIQMEQcIeTm7NTWyPA84kA",md: "d1Ohbf9c3ocS0uH.klF.LO93r3UtG8ceSvbeI5KiR68-1739099769-1.2.1.1-CsWkEuULI1PZ1lY92HGx9MNI78gbS2IncPX752nNt_.Je7W4kf4hHd.r_ONbd_Ymv6lpUBilN3iD.gazwj2olDFuI98f1qwbVHiYXrMVYSIQe1uZhXWNZCYNm7xwqtCbjTZ33knZ4cqX1ksK_yUtv_cqh.OAgRzo58yVhEWGZCgAug_P8weK6cH7D9xUQ4gX74UlKR6yWtb1ZqW168yGjWMigZZA8DvnggGzYt2FJsNDVKOmhcWTN6PLQX_jj6B22Dv7SsTLqhlRgtU9ZU7QgCAQCNNNdiQOi4BeQ3upiHr0qsgJBErNzlQKXSPcGb4I7khezxk3laJeERjdqVfRnpnn1iVFKybohkJqe4hYDvYBu0rL4VaNxFLsQNilh95v.CXAWzW47gS.86qN4NW_CvJVA1XUq6h4ChPJ5RodiW1TAPyCYptSXbb0FBz4JGdEN3KK7aau__Rj9UR6cH_Y8QoIiXsexCJ93_yD981JFhb7h5cp_5cGhSo6qd0dk0_tV0Vrp_H.5Lku9E4qmLshVoiodqmC5rkzFSlU0TCnM1ejf5krjoIoe7rwuYVE05oDUbGYfaUXBsxYmZbMvrI1qQNtLWr2hOyE6HMGU9paCmXszx2gt7_NTQVECWFmXN9ohgFaSFwpRznV4Xt7UNHnypXD_f3dypxFuxRi2fzzSBQ7q9AshgeHd4hcubBsrRPmeV0._q4rTw0i6Lkn0fyPgG2CoZQRuio94g8gznPEn41MACG_06UqZjPeRlJlsXn7FAFH7g96gpQmD4Pi2JQtYLSy63yDYPAX7eYFCudR5Sn85wuiDBC92mgOe4.d.JF3Fk1qn1pxhw7Ju0O30xT1LVCF1tEVhBrXs5yFcpy4d4D8oNUYT3NLCfjJ5QjAXY1pQpV1WG6z8gayosD_SsCMkeoirUJv12Qszb9zbeMJd0yh9nserF3aIvzm3JmQNJBxPZFfYLDp2IZ5QWiGvs4iLxwRoJ42jJ.7SSI4eFXefjhfIAe3XMPHWQ4dKoF.chW.1mqFNwvCZTtNtJzmqK19_easfSptNlGNN1MwqliGRan1aoVBUTYktdOhPcMhypW73fVqyYcDmfMwTy_fr3cHuG_aj6mSrY7.2gO9.e36P_X9ilUOxUfzNEcK8hu9K07mSK3zWNoZNh3Oea8KO.ImpPY.5PiXObQTMCzVW902oj59kqGeXVPlf.NtlwB8WtnaE3CecNJvTwjJSAdzoINt6M9fItym05ktRiem0J8GhWoFFz3L_K5_w760w1iHA6CGo7e7a.yCSuKZ0gf9MCH01UvPVyK8POqVsnhaN22cjQQkDsp8zRNcka3iubSHO.AxoD6LRzwWPxZjecnxOf8Nlfnw26IocgtZWtQv6psQozxPihLBr1rlbk80Mr.ozcyuOaWCh2_ZytcdL0FvIGt.TGpLWirM8KqzJqeIJjsRekq.D28XSFPWqkM.CFCx_YmHN_j5Duqiih.DdzimXr2_G2NGIBcEZV1CpAsvw347PBDeCVh93ZB6vSlUsJnYcuKPB3h6syO.0V8jZ7J68G40pIL3jJKjuPQer9oxqeok_H9cO.jWmuXZ0suF3nlrVpB5lmrp3yP68fUiW6.lFfufEw0FYm3GcWNG2UGSdcD_pTUSUQUeH1Z5fS0lRUrX4iT6jZdIDXh2T8vXnS_LAaaKns6fMW7lZaRNpMF63i5m4DlZGl.zWPUioUFKlKnihwjhC0mer7b5qPDPUj7i32.Cck7eltGAgdais5xe5RvpL321kQwq918jJdeWn4IGvdxrl6lA5VBjChvtZsCasueTQiads30vE4dSXefJC23GftpOqywXtzM.62BrAcgGh9CQUsY3290UvJLZ2UlY6mWrhDl1nFRAxsld6UL0mmXpf4FjmzqO.FxBCU1S5UvZi6fq0qW857S4UrukolW3U9laZ.0rfpUj_yjlWojbpP14QGx0q1SzLc4S8zjiA2.kV1LMe4yGDhUCAJ9rnsDsm73G3zYb20Sc7Y5IlOAG1cXdRQEyYyIQ6oZ_hLRF1QoIL4j3uZ63lguLQW_yO9qC5sXWGWdWjvm0SvH_j1oUq.TymyNcbdtpRyhH1RnjLsvWEYn8lKzH6ppLU.VlKuyfLBnr1ywDfuIzj4qbl07F.Pkt5iFcy46CKlQHDYB6xEhtQfbIVRL5MrCBzfhZFrw58gRHZfUHdfGLEit8R_feXTRsZrem_jwIPJko225MjN7QgRC1",mdrd: "DwCrXqK8PvJ3Cw6uzU1S0NpEbWzBayFN926J.4tjDRM-1739099769-1.2.1.1-7ABImx3u.B4zVnCOi1B48HYXAXXZlUCaFEI3NZ2B8mTeHftdT.cNbodjgUVsTY1Kf9sKMInlk.1oUhbvfzW77njNjnvFDO_EWjc9qcu3.1ioCPJM9cxDQMtXiqoQ94iR73ZXqJ4TA0f4HIJM48V1SVqsmjuB4KMBakLfsiGN3FXTeG_KqtOY3BLCDAfxvWnjHxYjcjrSP9ky1Hw1Ix2Skl6t4KruDlUISCu9Oq5wfNnYpdJG_MGHG_jMZv1J102mT6R3lSV7IyspGBaRW6dQwmbibG98eRzz58MT45Ee1zSrFH0rsWmfjz9RqIsmDOchXdZXnx0xjPvZvDqukDzOPyySbWqnm8L65qG7Rgs9fMJQDlTNwjVqMEzEUQ3lbOOoRxNeW7vtcBajPVNuitZ_usjluHdFp7MjPDOpkJjsvv52BhLN2tAU9EbbPsjyhbgVXHsXvMWiwgQqBr21pfTuY5FwwME_WEORWF4zmIntTE8mz9pezNk2mV7vCvgrTMsiX_6sxTi3aSGMREICdKjAvEDQCzVVEuox6bCqum8GNOZTd6fVxvgS1KwOz.XXANrroEukUX1jhUQesZdCX4pcf6d5Dosd.IQAxZgoZ.af0ZsqHaW0n5GM.hmLlDEAlY8MOaHwYloC1lZCpNosrl29T2nqeXmootOocPyIClcs.Jf9Azy9pUxfLDRaS4dVDYpM5fKKLQzI1wU5U5XPrlcTYycoBZ9amf3sTDQuw5qOTclcfjyRZdhKxuARl8CSRrHPpgT_OyLLTde0FAIqOsoY3yCJOSQ2X0XlpdN3iQ6fAuqXw22s1pqrnBKJnZNopUdCHFvMuoZPYO7KoX3mVM3Fd_Hrl0kSyDi71cUwv2A_EzSBPD1MUSWXev0w2ZIeNh1kv7XzDvNltT4A8EPJvch604Tx91XMEZ5uFl4TFmap1aeA8AlWQfEDP0nx2J_HnedgMLi7dE8ym2RRVlUlVgUPa_dVyuzjjYln.WPMgaAax8zIYxhjiauX.gi_adqWEWScRc3Wh2uWiNqoB2GpwCRgqynRMmCo.mrF7qeDE9bDtC1POreqBZah2cfM_.gxldR_0FBCGqZ5Adx38MDM53An47pqokwzW5Djt8y1qUWCtMeVhfRXO7sO.KLPYX9xLMiyZukIMtrTf5guqM25RVMga.Z3IkM5ulWr9KL8bHIt6hs5pmFIwDcx50umhy7lLq6oUJA44nXdSnfQu3SmIcgTB_h84qjt6dvcOmUk3pVssweVJu68nOsPXQXt99fPkAXvVGZhv9g1hUg3hEYZzFDjvMjJbRZ_YVOmZcS6z0LisHeeaoTMbhiVTSbhHO0NDtRUvtuixV3rFdy_iNoGLY.heb3alkiqLNr094KhusQHFqzO6bauFVQvr1DzWXLkZjry8Jdph.PgBPr9nGgbtqq03QAbbwvChuDMU8uUec2eoy6A8j3XJ.3IWvAY.2nKHupZPQP2dQFqX231LgN9XNA2hUEiCGv2Mqahe5r.7b28TTkBZJ4zfzhmqAud8aDIIYRK7EkUdXCCOhwxMIiedHBf3PPgzJuRdDpAgY18QhBaIgWt2mCmEMMpyuEOJsuI.kNFquj8D.2j7KzDlxSQechigBqQBR.JacRFaDlfRO_4hQE8DNKnrhV75K_bXEBVmtMJsJZtUW71Ik.8huBWOFZ7abrdLoMyg1MqYZ.UhnJs_x0Su1kvPyHK4i00leFp.pPHSzmR8qqq8afIlaZ4E5tj7eHGBtbSIQyJOGk.UfI3Iil9N7d63IgaOixWO5Rrt.oFw05alBnfRdXdj3BkL55YKw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f37219cf6559fe';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\/5294061387?__cf_chl_rt_tk=yXcT9Tfo7bfKFphSOzXvSFSWv.d.nUEvBeR8xCan.Ek-1739099769-1.0.1.1-2Zq3wFEHyArwLE0VqkipxjIQMEQcIeTm7NTWyPA84kA" + 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