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-1529674083.mit-edu.top/post/0514679238

  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-1529674083.mit-edu.top",cType: 'managed',cRay: '91104c2859f757f7',cH: 'g7BdiA7mO_ITiZXIDEvUFFvIVpeXWT2ywBKjeNm5m4Y-1739402302-1.2.1.1-tCO3byyxe5NvKVJIHGYz4nROWONISeb53QqLavfYdO6zVb8EP3dCDob8Xu1X6_cF',cUPMDTk: "\/post\/0514679238?__cf_chl_tk=BFK5U1XBIGK_23jgD4qSTXsvYR5YNNLe4hK4jZuPtdk-1739402302-1.0.1.1-LevB._MjjCZqDFglH3W2_0b7qVv7TZALyvrtK8kfHpM",cFPWv: 'b',cITimeS: '1739402302',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0514679238?__cf_chl_f_tk=BFK5U1XBIGK_23jgD4qSTXsvYR5YNNLe4hK4jZuPtdk-1739402302-1.0.1.1-LevB._MjjCZqDFglH3W2_0b7qVv7TZALyvrtK8kfHpM",md: "IDcdoo5FE.AVvrBjVsCNNpiBU0w_y0lOqTgU7rm_vgM-1739402302-1.2.1.1-JcJ5pUOVk_.H2_Lk2vr8NaIvDQQ045DkZ47jLSswvk_oJNTFEi8TrVWJ4Kx4L4IcGAJSarRCRwKcF281HxX6Yjc5y.kM.XBJyHd4WXwIccknjn7vRQRN09zTssINHCEwSq29jYj9XBl6pGZ6XvLGFWTsc5laR.W0cfbl888SRJ.2b_qu7f7Gb_fDzUxA4o1J5DgpjjIWy2kd5nHGEarHTMbv.Td9OdlsejYWpgNd6JRJvFAEK35ee2iCThCSbqm2ghmPxQZXrtcdaZrlOokGTfD_JKng9UIB9kA3pteq52jl7xGjBKuyvlnvKVfmT1nxD1aEGWm50761E7.pfsvO3OXv8SW8YjJfHARChuiUNnTuN3FFWGwm19vCyUJFbGACVvLKzyZx3un9O2Rr1hQZHDsjuQJoZ6af7IjUnxvt3Xs1cxIiIbnltOaWU4.Iy3nGkHUqVHwiTEnylg3ifbGWdkRaSmWfQFIpb4nudcmch_f4_gNqtH9EHnOsbvjpr.eJgVUSXepbOTIIxSS7RaZ6bs5Il55szFbkdBVyIAmJcvgTOptAPbmNhMarsTmXNLC9BHNQvnbWmHgGYayBqF53f8O9KAdrj_rKKRB9DSUNbJFNlhSfzsEOEsWg9QSpH8fQ9H3VwhJM.gq9erIiMz3iaUtdcXfgMxxi47mnMCJlF.EpbQL77aACfM6wG6rb3GSChzW5b_Qw3.jv0cCihKJOPQpL26uFAG8rrUhR7J9mByy1B3Zxjsj4lQFZTUqogmFon8chf8eL_pO6OdIy90_xljx1GVpvcGsX7GyBExCPe.T94GackQZC1Kdy3rggOwRR0LLQpKzYZvIuaA_fODnRPpnzjgbAhVKbrhduH7VITj74dxhAj4LKAlHdCL96fj5LQ.w4od3pV9jo7R9jQ8zbgC5g38eHoZu3MI.3bMc6WdTrAcPfkNtJccWpARrWqEjRgqIln36k26hvGMosmMRH2u9r0Jlpltv5PHtGix_.u1DI300sS2fSfW74NfMkAfMWw.hDHMKTLYMVO7T4ieohiUmsI2UfwEP6ccivCsgQ5UnoJmQLU.AqSsiZtZRAZQFPh66pBof4mFeiM6816uH_2_fqKxdf6zHf2NV_47q.3A2MHv2BckYuk1jTVAPj6OjqpI5wTE.3QVONE7KYawRihKGMR7jR0qH8BDpK3OPH.Xq0rnayvDlIBzOJCm9bWoTKiLCyFhSZiON3KRHDVampkcAqQwGQGQkSP6vaz_Wlvze53QQx2iEXzvBeXV97Z__2ocn3BQCEjnUojSqEa6csh.dv5LwCZIFh2u.YId3x.qlQCSXatEh.X1px4STFp4IwBCY8axyiaWvbHHtGkbgPIkWWUBFJqgDty64FbXOaQYsgdshbrGuirRLPuxf8_Lp5Z8DJ3udqpRisCnfKqB1IxTEiGVHt.OMIw23eRWp.GkrwAgdf.hOV1SeKnvfujHJtLD9X_01FQHzm4gpWH4PfGMHiW_cs0xdWXtI1pbmM_vVzgRbw7ipYQQb2TwhiWc2bpDyRwS9ZI2OWaerNlOPmTF9u_qz25YW4Ez.crp2ObyXBTpSIcp4HRLVBFD7Jt707Lj_SB71raCnZSfbQcXxjUDokfEl5h.S7POY_Ewqnm1a9vkYjZL8oaQNN83hOAbqpMjYbYTqt11Xtj_VRoXhZnR7wl4El2a5geo.69nZs4qxHu8u7NLTkXyIZhdVK1QQ.tGbZWhK_bF2YyK12CNtbMUyYxgcToN4J8FUdWRZwfYU.IDT2fs8eHcYz0OLVxcqr_yGdlv2rHC4L0sS1EWeLn4i1LzugtZevEWS3Gc4ALkoRM7cEXnRdGjRAUhQCtgdim58Wyepqm9aBz4pWWufR.ed2hnn18_lj2_cr69UddTtafVoTh7PSiLyOFW54Lnw4sZBYWEDzJLsfL2PNg4FPsguCjna7L2e5ANWhY6pxlit913BEKXmuHCMVxY1nKhv6YVrBKBOd8ZwIQELpJxGZz4XiB2HdylaxPlfHt_aRzEd0xmvzV8FswxpIWEa3qNigQ.89Zp70WNTmfVDvP7CCVw7.Pl7cJMeLqhqiGczxCYmNJRJCw3ithhdpgQVbybS7XG8E7XGLoYvoI1AwiZeBRwxMTZTwqruInXvhalbCCRDABvnzdBFcTTpJ9EbalszTNzlRZLzgNxx3sn2y1Hdot_V4VnWGubj3g00hCoePZ.Y90k851FFdkQqpwmYayDCl",mdrd: "pfWZ8Zq9H2GzyCzaNGA_B.w.LQVUIKxDLXS6.qwC1ls-1739402302-1.2.1.1-9Pc3PHYf5p_6YNDORzNTJJMZVLJ8DkHbb96HQUfZGo_gtxQ2zMrj1mstHxbuc3Jd8KOPPZHegk95DvKx3Jb3x8sFbXfErdx3puiMfyUw7EJZTXKw44khF5LDVuMzJ.KLXH3IgqoTAHT2tXrCPfErLA7XkEr1gBaW5cXLpza05GlL5vXPdtJCjoC4CBnkHwmonVICxt9pzYO1RHhkLqn459h.tlWM1GhRCN2gwcK6f8YEF5HNHczYYWvVrOgQS1ecSBcqU_IL7SKs4BTMV2zmXaoH3cOtI2Vziza8K1Om2rklljV_gQuKCuez.Z1T8uU6tPV2mChisbqT3oBs4I62E0fj4.UJIKdbYkKcWqBhWITBglrsr6Ef55JWtEr4BNsx41wuiQaFsvcGERBeGny_WvXWTT923W3FnSIvCXhestTlkyIedZOJnPwgs8L.J0Y3tJ17mT_TsprG4TpqntbwNWd2vzK76XfUjdaquOhqg82v0Kc3KG7HyeLcfKCuiKTPBohoE8t94HrxolSnjyTV16Io7kAdA1kFpeCbgtm0YueoxupLwTPsI2.k6xf4GLbSgdlQzH_RZb8u7T.waO26Wdz9U1NDHW0c0TMQ1k6FGRGwrdnEbx3.mL40c9_3OS63s9IEq1OAXkMg8MRo2LdrEP2Jh80xx8DfwupSsMfUKAYWKYHD5WK9WIY3bLFmEOvx081LzmrnSCMS1Idda6lkLXYryg9AFEASLJ64cX3l.R97ZIrgtcgH_s93UNfgQQZ0P2uNOw31amlzwlA26si3WerndlfqVOl0HpYBPZKMGWtCp9Pt.xhRztSIuOrAaxmB5f5VAwjLyMe9fGv3Gm8D6nNHtAE7TMWESUlMzAqRvOB34VfM3v.YcWypGJlQI4AmGGGyE_2nCX1OkTU0aDr_OBaQK6pmpCMqj0UyY.shAjDUC4fA_BZyRqYZiEAAQ_73UKpUVi_k4U7fAns7BnYIZlToVRCYe0Acx2S7fwWIuPenXrMxUhrTF5c8CLz1roqpKbBiJd_4ZGxGAk1VHvdq5UcPZYxlchaqF4Ix9UWJMr2kWv8FTjl.E9yVSTkSQ6WsWz5HH0xtfU3uHgmr9q4CaOo8QHdDKahGG.QFXOUBBPokWs.rh5Hjy5y6TmIHOxFpIcLfYP4P1nKsMD4Vof_GB6eVTEti.3Lh6dmVHTXCGqd6t0Vskgiozct755HSU8.PEwCcBh2nopadXieJnEsysy1kkv2CiGTnnNCwf8T4owG6PH2nEb3z4KaeWhSFy6tXXONZbi6ao9XKQy8obdjUcCvnCKtTvHh3LMaKeo3l5e.p0qtcIqxVZYAibeB0zi8CJer.w4V8GIMnHCe5VR4iJXfgrbqIwK10GCaz2wRv15hTFJeUK0FeVSGiD5mjuFSDKkebwHsfQ9PPWMNuIPd8UlWnnEE4qjuN.QtThEGE0xWz_z1ep9.znurjC3ATc7fia43HIQv8wSZtUUh8JK4Q.x_V3dM.am_Q.YE8DfmHlnH2TRjwdUllwd7O21zy2dHUjdKC1arJvQY0b8Ud_gwx4ScMQBtfV20YtGPdtw1znl96ZaU34lUkfBYz0baG.L1SnKXxm7Eu3zH7FYJZYP7sNMDKYl43Cn.VGYn1xc5ySrYNxt2BXOojcTLux9gXcOOzp.G7_VzCv3Mh6XB3LUIX_n0gmk1qotlMjwr2vCTZc0YP_by6CmEhiZeF4ZK5_YK6m6ZiZwAFoOZyxdD_JHxPeWJOukmNHMX_Z1Ewttn77V2v0W5oaMoJyqfPr_9La5sRdTXOYo3MPuzLSdbMYZEpsA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91104c2859f757f7';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\/0514679238?__cf_chl_rt_tk=BFK5U1XBIGK_23jgD4qSTXsvYR5YNNLe4hK4jZuPtdk-1739402302-1.0.1.1-LevB._MjjCZqDFglH3W2_0b7qVv7TZALyvrtK8kfHpM" + 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