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-aff6t54bv.mit-edu.top/post/8427109653

  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-aff6t54bv.mit-edu.top",cType: 'managed',cRay: '9110d0d64e1057f7',cH: '0rbuYa4ccvPjdFVVovH7InTFrwh0uvnGHNftsRx2IU4-1739407737-1.2.1.1-UsxymTuKQs6Ja9_OUywpmkqpY8TvYPtEWi95qk1uhmaYE.GoszhTWJnNOEb2liGP',cUPMDTk: "\/post\/8427109653?__cf_chl_tk=QpV7qpRlevLwwsytzlawDmzT9L.Feni8omPEi4VE6fE-1739407737-1.0.1.1-._Wk9LneY7zpJctfm5HGcOSYaVoZDfol47xhrG4s7pY",cFPWv: 'b',cITimeS: '1739407737',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8427109653?__cf_chl_f_tk=QpV7qpRlevLwwsytzlawDmzT9L.Feni8omPEi4VE6fE-1739407737-1.0.1.1-._Wk9LneY7zpJctfm5HGcOSYaVoZDfol47xhrG4s7pY",md: "Neu56tPP_95D_bya4Ayw_tD_DYDGS0T8rNmfe4u7X78-1739407737-1.2.1.1-2rDJF20_3Pf2DoYqs11E0Rcki7hSH1GOY5Mr3XbWEkXrgb9NDGLVnV4ODNRd8CyZHz8izFLXjEcXAMHFxragDj0I.ESH5i2JSYdlKckNu7EKFIvhSMpc2bEToGHujLxjtCgHMiIuy0HCBpVnnKGukYAGpIJZVGDJw9PyauxuL7tUSjLg7fBgz688.WKA3VsNjfsGXlReoWDK0sJytRDVuI_AcmAT5o4IBeavq98aHhw5EfyTuuLdOu3iLOBOqNpQqtIPZgVkm.CBW4XU_ZA4u5XkiD9uEXy03HDs853IsGw482SfpFvkaOkaIOYrysxgpECdbCFP45pZ.316wo.R3GGdcefx1mv6hOWAm05TkNttLky83Z5_ijPoT2hP6CkLFfsaCzPiH384FEU.Ac0qD0Lk4oNIq8ksObPNfB_uBSbq.Nt2AJ4.lRuMUI.N9XecofrS5VeipPDJ6WjLOT0PMBd_Ov502ClLvUrNXObz2mqFpQexllof65fGgJpo3Myb3c_519ZYjUp8k0ZPnbn_jgX994ajT3UigukVoVgjKLBIqK2Uy9C2_GbsVp412iDvvMLgA3tntpvju0grgvQoVoA9LrxIICaTR4DBxiNibNF0wKb0PLOtzX6FjgtO4vsoZFWZhK5_GeX8tFcJg4LQTzTGefr13iEPNBSvrHmn.gfU3ekJpZgED4SmZgW9lCMJl.ea_dKYd9vmtEWEgOO39.nKo_5YUUahP7jsz0iEOX81dgxq.NzzJEz_pEyQv4yq_ehKvDo406gpJ4RlG5ur6EMCpI1SoVb83k5GBrYUerNCe.a8Y6oCb5ZOQoLck8OVZKLQbeiz5EMlcwSXewMeXUHOVS9wAB7mUfVRQNijwMNwTwF1k61Qkcv7Q9KRrjuPtSPwA54qrn6sup5fK76sOsdFNa5.OxBq9Nq3yVM3SjHrhM.YptJPgKSrUWqxrpH86CL90ZALD2SpWYKfhmu5BSt6QvPWNA7q1O_iZZwXo13Dc5OLeKFIljN4kdoOfN9TVj96_7n.OgUP235DI95Cj3BnUHEbTbpkBQdpASIvQsnsBXa_pFHOb3WEJNtsSPBeBLiuSm4UsioaHC0FQsFzanyHkvrIsGd8lcS963uBqK08AKItk1eIgmWyjjPQsyDhAJ3q_.aWzCPq71BDZI8jSIZw3Nv84UIdORXn_2B33EbYVUKVA83Y1l1_idIN._abfU.MDM6pIP2u9AstGIPCxKMoh5ZXKYNGtX_bxkvfGh3CGkYpkNXjX5Fdy2fOt5aOb7J3nL5uO5FWdRpYrv_MX5IdimTGXUBcwgNpY4D4v8XQ9DyVcowdNtWPtkAuLqQlkxTER1zgd66X84LUaxC9.D.9EA4k4_.P9Rn8r25.0AOafg6JLou61TDfOqFZGLXaul7BgyYRWitsc5xYoJRADP1ZlYc3uLfrEMP7MWwFy.vHGCYUdmF8ETIjqTox.juhVoaRJn7IicXsdwTIdK6H3XLBhUTk7c9e6XHgkYrW5TQbVupyOyBBUG.o_ssdTafloZXzldkySXlNITBvhkzZU_lC9GvCEdariFcZqkXROeD18fmm0nmzvEZZwlsSD1lBOJIRn8B36Zxf7nzlolXDMFgJNJ_tsL9_4wAJf3_YypJbDVUBECXeay0CVDp7feIijIPUYZ8cW0DG2JlWzsn90matQG9HOBmxAyn6PzVFgIzApN07JqqaaSpe3SFfvX1sK6TmetcNmbO9v_3VDkOT3bq2wHykGV_ljJReU7sSSLOcB8PStEMGOPgQ_9dz3YiTHHXH2sQvR6I8dDocoh_4S0e229dqOWZ8TiHEGRJf8zxmfR28_BakFWyvy.ihAj3a8C63z02TNiAt78LWe4Ckexkjr4oIGJ6A5hCzVv_lhb5C963Beed0Z2_LzQyjWUnLp8xDKEPXVTNjAq1Hxt_uSNz4UUlheluvQzfu3qUOWEc95_4hEkAnhJIns1dG7qUzbsZZfi9QfgPhEzvlFfu1cFOikSnwV3pcsBifVPhRBvXZyhhhqmoVIupbckST_ZoO8ChkevY8QGG_9gRcUmtExBVxrmoHDydBRzSCvsrDNeuvAcBcsxHnoqThDimyZysRnrD8MZ1sdJdXv2JbL9qc3pGAA9H5T7clZkCj1_TCkJW9XOzENlMiVBLQLiaRjflCOVxiDt9_QOd5ywOFLQIAdjNosU7DXV1jWFglZi5lti81x9YO.fA1zFbQGSj2DOYB",mdrd: "hod4261uIzTlGtSCoDy4q6eTdEpa1pkJV9jMlgnJs30-1739407737-1.2.1.1-.O4yOunDfnLxqJtlcK.ksVB8Rnvw1IXA_rkbuSS7TJJNa5g5_ANqWoiOc5WOjOps.PqigmVOFLD_L0CAUXl2hkkMNksWrqvFK2Y8ox017WAhs1opytrERJmeH2T3FjvXKPIbshyPCdtKeTCkHdRvdcWmKX._jKvcdv0aWTWnTBeM2Ro7dn3tC1jHrMInmXw9TvhXBpRVjtscSaMmP.UEphNyFHxo6Dkdst802JAMCUuBdMzgC7dd5f670FxMs7K971Kuvt0MjbGCrxep8VjKdL9LCfaHH5lgeTFvop59i_GWD24Rl.JngBdikr7eepPmWza1BCAsD9TcRLY_3yf68ezz39O4eA0rx2dS9tv0cowNQo1aGo_yUUphyPfTCUbHg87RDlqZjdhtzS9yAcdvsyagHEGjpr.UA.accrrIpwOLbUlBB23VpEzoVTfcRMG28hUOoKy.Y6gSHapYwq9HoNrDNK.ig17FahxnoVU.LqDq_PGyCHncqpbjiqVTktMAM2X.4q_Od9iRUgOICLSviab1q0vAwosPrPtW9qvZgSmBVGCFZWgIqRDF6y2bQ20hOW7wAdP4IihelA54YywllvaIK7uxUVjzW6LOEUZINLyWkKvO.mQ5a1cYyK68SeL9ZI3sn5FNx7b4cHDFYswPi82iu2nwHpME2V5IizSF_ynyzyICZQVtAWIO0vqALGI190xyjveFSwVyv_CYJ_FcHsJyQdZg5mlvpCdHaGm9bMi_z.No6XLlJpcSQMycnDMgdbnq0nMtp9IOE4uYHVh4QAvt0QhYxB_kAx7elyUdnsVdvaRa_H3V_uyUU_2EHpn5gO.qjrz7TGMuVifoW4znYo4hwxsSe93u5Y57DKmCxJVyAm764O4sllDwmu4hLKoe5jkHez5ACJnlC3IZieebxwIpz1Qyl5GwVGYLD0kvnM990PKitiYRYRd5Kk5mJ6mf3oxxH.pe6Vvd0cH_gKXxNtCOy_OSsHYXnU8t1tIm36MYHO5sXyyDpVyTJMIzzio3oURd_Z4GjVSkS2Tw6MfXavGXjnql2bbcDs0P.dx.ixnh.zQB4EPqbI5jH5Rr5jkRW0BkisgAof2F2CYaWrLYvveezCMDhtcXIU0mEMmZhJfSGeE7y7UzL77VqWCz8lx8p2QDikJAx0sqPYhJJaTui9hMORxOogOSKt057aYm4kSX8MfMHi_lnYXM__GdZ6pPGexh7GM_Eer9Myw_25m7OyvfQyDm4w60Dr.7GTjJCWzHHkMrmx6WcioZBoCyU9Y6T2TJN7HSXSdwuH3rRNMV8zS0kR6HEsETpxSY6Ro7F9oHXz0qmh1Rpthd.GfwP4fIHTGT7fYACPb2QtMqurGxGJKDWZKxvYTu_NRtQj4zBeJnhaH2oTlfkT2Jt9O.oypGlLTT33tk7IkrPN7Yjn.HJvo_uz5ZUIyk19_kOL0PO9vQkGCVM6e35JkwQRvTY46w2ud5EqMt0jL6weQTkLeJ0xKDr5Z.QL_O1slaCXaQ5.YBcK0.oMV_6K409ZijnGSNtlrBnneAC8NH2Iofcc1.D8BeivoAFFpO8dTbyGFqtoHDz2nUQzpMwr_LCrn_ZQcn.2j2c3LmDi9ZvW_3NOkVSR9Q5DShjSJQaHdAgMg3jtmf48H5LuT1ph6vlrR.9uOU0j_pdkshFzupQBRIByuIFRZ9fUEcOSoJijcwv1Z6WgMmZTtO8eee2g716lTC6XUiXpm2Z_ySL6McUKF63XUSyZ2EEU4MTyeUcPwQ2.BBpNmg9NGCJsjStgPKOn.va4De.i81qY22BgdIh3_rZC5e4gYQZ.xLTIap0c7tCSfMlg4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110d0d64e1057f7';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\/8427109653?__cf_chl_rt_tk=QpV7qpRlevLwwsytzlawDmzT9L.Feni8omPEi4VE6fE-1739407737-1.0.1.1-._Wk9LneY7zpJctfm5HGcOSYaVoZDfol47xhrG4s7pY" + 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