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-871123214429.mit-edu.top/post/8459703612

  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-871123214429.mit-edu.top",cType: 'managed',cRay: '90f378e039edc59a',cH: 'R4stSGJGrCiNYvlwjcUsdcxt5gheWyq2..8hFAJCOrs-1739100047-1.2.1.1-rD5viDtrzhLRkt28itXH3rLyYVpgIzTEtdhRmGbiHPvQlInq0j77jX5sw9wCA22X',cUPMDTk: "\/post\/8459703612?__cf_chl_tk=ovKpbMWzPxcsSfsoSocmllOSdT4Sdv8RZx42NSoF96g-1739100047-1.0.1.1-cm7pLBLJeuSCsVlWxWMfJ0U0o3JWb40zOt6zOXpdtgc",cFPWv: 'g',cITimeS: '1739100047',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8459703612?__cf_chl_f_tk=ovKpbMWzPxcsSfsoSocmllOSdT4Sdv8RZx42NSoF96g-1739100047-1.0.1.1-cm7pLBLJeuSCsVlWxWMfJ0U0o3JWb40zOt6zOXpdtgc",md: "xL6l_mbHWTx5jzdT4ODaORsl68aSdQIsgn.E4.oZajU-1739100047-1.2.1.1-tXllAPGmR9gcr9.kyPC5aZiTZqb_MlK3aDEiv5xSXHUZHsLAL2JKkoyWgVHTOpN0.ZzQmWTyg3mPXHCq2WELMffx1mRzuml8bSuWvVsMhL1NYtpT1pIwnJo1kgrso_itpRHqPRiy9YpYIhlo4hiyErSSbPOB1akUszX4emv_79ibSnmJyU5TlFF1b9l12pr2JQXQFSB7oyaEPuX2X7HNESKawlpnBL2IanqYgv9iMOwepbaOJsIOetfRpE3s5wcDEauh9AyE5M5B8yWESD32jq0Evhr5_l._gpl00XPl9FJ6jVg9gW_LZ6Rsv2KL7YZs4z_dECTxATAJQn2g6MSwjBBJlXUrth0liMztzuwuiJ5xLw0X57iKqvqLEqnpj9ErmSbTGLap_pATeQn5EuQuD5ixP2Bmj7NBXQPsZdziOTIDNnno.5Cat0LmK5B4C.JCzCOmR9IMhLd44xG194uYjZeR5nb6NCf5H2lm3vPM7t1RII1B3G4lnUZh66BrIMZeWFKiKvnE0VL4LvH4EU2J3sP6Z_9yrT1zCqmidJp6sco13xHy1RYwc7UcbIb6royszJiqVO_N7bqNwZWvzlP01LnlA_u29.vVYZ9lrrmg7ygNgOfTD2rF1jrJ5ryjovGIPGGJAqfOI1kywfMTDYqlYjoDs75NhT8XqxnDX9yGd434jXQLaAWsq9PlWj257qWv0r1Nh_9rRwViUDCSmL0mIN1O4yX3Mk9dcetu7hoGZJAQPgI9_tdpIBpnQ3IvRaerHf0g0gBe5l5WuIv50CiHfCvOP8EJNtlTVCwz.xfCuEsa2y3hrrcHYbDGXRM_QvA5gx1ZOpP7xthLP_xE7LoUh._ZarhZ5wGYcu4UgJWRXhubz2In.u2hdg7oz4sSQsFOdsW7Oaf2gGcgVVdWE4kd1xlb87FfH2EVzH01u1AjE.uvLzDsNrR4Bebgg7zk8ipQZhnL.j5pD6VGe6N_sRuCEJ_.p57Et5GkO4JlUv.F.K8s_JYAc80kUWJFW7XcVlPd9HhXzrt3aXqDUWI.A6biuTQ9dREDxpKFAFJJkSZnrtqPQhSWOyDCkgnMFZb4.gGUoPdr9HX10lafqgrhpA_rHe7iD7qcxUUO5sO85V3dqiFOqeow3Th0bPT5evrevtcr0jrYudBL1VU3ISNg.i3KCkCjAvYKX5S0eQbl4kXJ63rp_387FDnfTOcIftkiEiSpsnnB4olyX0T7FlFICY1ssLsxraO03eDmLCyQKvV13JAvIVqF0v.5JmIa6zu88x0P5r_ogc3YNPAIOYGY6WvRVTSpansbcwKRSJtlkulNErWov5rXor7JpF4Qs6HC9NG93R.BT.0yC3rrUfUMQtP_0Zpy4fPHBvip04hRaAhw7cWIruaKrvVf7kIQ_onLYHRtEKxMzL0f7ZEpIPWxj.QUeRkgObPfn.vyBtAgt3qQFo2WZ12fpHSc3FcOKqUbcab0mvEW6q23YtEhyHiYQdbVH5MMdB0lZ8r.t_rMFhK_mPJtSjFBpPsMhWxRfX5v59Z5kVTUEhRaQRr6qqTNTcoZPVQMFgiMW.rMhxqD9v3Hs7FrihuH8xX3KzDQlusGVr_Uhquu_i1fqs7dkjcAJrLr8KLWMo3MWn.zo.u9DZce4SlXwT6rvgD9gGg9KB4kWSEBRcgcN03Df.EZozhUofNaIYsjwhCAUEiTHMbhVT94xt9mjlqAFwYxWpt9YM0eMQhSjVMqelf0zknB4QcFmZGwVM76I9VSr6g4Mixb0Ldl2yj7vL9NGhm6gtsIPBYdHNpo5Tq.MljQDIJ9XD2wtawdg2NltMW9CYTb5Z7hjJl_XSf.dnjXnmXnhxDFn2hebJFCVG1_fkJdakYZkH.Mq.s8IVB4mFE5NDanHw7BQTrVgejz5SjadApIM1CX5Dn81mn9Xx1bLl_kYQdVG4XCitnDgSHyq8F7h35tQLPfhVaSjJC4aSyGWMUnVjpbgPZs3joSslGEbjDAaVv23umcwvsyXoXs0Z.UUUlTfObJ5OG2UoF6YzDz6Qv8a0p1K8m0IeC.d9Kqs3FqUXpDwgQ3HkNgXJqfOK85UIG4LP8SbbmgLY2X3Nr.65NMZzsTF3Ex.bU_lRKvFvw3WIJotebGbopR0UPts.bBUDWjBnZaE353Oh2RyhCBgYoYbeaBpTpZcKiQEJ_9kAt8DYDIgjmH6V8JsyXlLzOR6ziMgdhrgMQV2seG8lnFusddWrdoLcRf88Lw",mdrd: "7mgc4CqpZbwfbYveR2RAXd_ceI399Mo_D.SVFnl_QEA-1739100047-1.2.1.1-vSpdUwrAtVtQ0pWvVst3hqSeiK3hkHV7oOkIovS.HKQseHFZH7pbqfxpMkD3rrNG._nOS7zUy0pZshGAbidi9fu57SMy1VX0AETu56Uj_C4PkEmQ1r32ZfEShBsVnfycO8ELFWKmg6GamPEiRjqpRVvr.uDqeDdFPQ6zcmdqgNW7Lpl2SJsXGhNkN.LHhc.2jX42OkvFOHl1e8PGEqlFS1UEEJ1GZKosf9RoGr1KHNfxpp6X9pWJ78BzxWLXpkW2HzHW5bcNRsmuAMcEUNdf5i7bGaP6o3KE_9He2u9mbacea8xdLHlYElzByAWIEiKXkdo2HfcOkIlrsn8uPqTcGA1swU7pPZqA3bjl1MVHrsJGJsOvZ2Iv4vt3B4q_BcTu60W4Carx32GuI2nbSLp_nkgCCen_rHZKx0DtcZBj3UJQvAcdqc6jhfA4BJKmy0YGdOjHHYC3lTCzHHRUpLvxw_H4XWLvInZ7trJ4pXSNqiRDQBIgyxcxQMudpr4C.QjVnl9KTt5cENzeeJHpuc9zvhPVBUgEhTw1c1I.kjAiEyrvPTKSsyT6QbLTXhBPNXTGbzWF7wPLyUtj7c1opb5dorHVB9_XZgZ55bByRsu_VA_bAMamzP7tvQHd1f6LcAaPRhBjVy0jIx2TpASDXU2IuQ29PcLQ0Azmi3f3VJxgvslQZm.HUyY.nnetGhhe_EkfFii1qqN_NdaH4W4d3qA0ThZEiJeqxzzdpJMnYXFjHYWTigwly9YH.nCCU0vJgtzqVNJ5S_SeZEDOw4.gWHDwXJRrzsXfzHVTn24a7Q7UhJDBSpx5m2nMmz5ZnfjqJxZp3G0Y1PYpRUSYQ5gz.tRfzjKvaVIAjCGPZQPcQRehsCUoQZHdPNGEPyKMWwN1k1zf1A2unM4Z45Rpb9h55rgvVG4l8vdNo6y1q_mN5fkQWszB_E57lJRkNVJfnxafZhL35w1JD14E_CRfhZVMgVKqV61USXY70F2SRRTxf8cLZaoPQQht8HC251SeDuFwwnlSB4ym59el_ar5oyYMmS0raBVBj1fCfBj.7Rx.qnOZdark4DioRSlysj6JoIBZot6fQQTY7UHJcbIOAqoKpyuR1MjQB2caS6y0SKzG.bNGEHp1ITghfoQ3Jn2dXpYB4455WRSq.2CjT_JpBgPyWzT_8iRW_AAu_oPaaE864ehPZj_2MljHXvL.zaRU_w6LlpQyuIUBAuyRialzyjY3ji9SHQmZXpm38A5Tg_dbpn8E8dMIxPApUF7BXRnbas5jcnx2oGTQhCp7o6rTx4rEsGPZz1POQ0ygtDAfaiKXCEW_KTRMYO52jNcrbzETVg8XUswenc.vEP5nVMp76UPq6_G7RQNS7kbVgdZsGczumEncyVDe7fiBM7KYrnmyGrFgbhJRrJE7hfCg_lcnWQnO.L16c.JbuA57n31zbBNRADwl6EikcULkhQG.3mBpmdt7pndqIaFeq6vnUvM1A_IO9JdDBk9B0_FuCG8KzUijFCAUdQeAmxxjZkFJrBXITM5BxYA89GEYkaQ4Z3p1IT7qb1069kTZolMJWyBBSkEgA4x0aONk3OLHxapINjYks_p4CojI0akLHQOSEL3h7rXjBaKTUbO26qAUCvUAWOG5A2myra31pa2iDSpKyxtKTKJ1LM7b.1TEylZMM27A39M9Ldwl3tTsXbGH07tZnanI5dvFNI2TaWvS1n.jAWUXdWvpXaJCkeYet5u7WZidBQX9.XPuYXRQky.SwkqJhIVjyeVgyitvqMHRc5fYsB52AwrR2uMXTzQIkI1HfGCi7ZxphHRMkrKg4nWwzvlR_jGfvD_mqh4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f378e039edc59a';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\/8459703612?__cf_chl_rt_tk=ovKpbMWzPxcsSfsoSocmllOSdT4Sdv8RZx42NSoF96g-1739100047-1.0.1.1-cm7pLBLJeuSCsVlWxWMfJ0U0o3JWb40zOt6zOXpdtgc" + 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