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-385327155549.mit-edu.top/post/6973581042

  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-385327155549.mit-edu.top",cType: 'managed',cRay: '90fbd67e1c21f272',cH: 'QMK8DUg9T_4bQdDugt95YAeS0L6WV8mRtbyg4iFLeTE-1739187768-1.2.1.1-6WSPkXOC9Z9A0u4.lxHEPGyzVSOZXTXWIL68SxREuLB5GhPGd1o0AKt2X14_sGhC',cUPMDTk: "\/post\/6973581042?__cf_chl_tk=zRB4YNq82cCwnCFPJ.m6S9y7hFRgS9KbO274yCV0AUQ-1739187768-1.0.1.1-XKBt61cfTS49RoVjwmRKSlUOx.s6ya1vQdxJsMO1LoQ",cFPWv: 'g',cITimeS: '1739187768',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6973581042?__cf_chl_f_tk=zRB4YNq82cCwnCFPJ.m6S9y7hFRgS9KbO274yCV0AUQ-1739187768-1.0.1.1-XKBt61cfTS49RoVjwmRKSlUOx.s6ya1vQdxJsMO1LoQ",md: "v66NY7n6Csdaly0qXClPtUMQYN6XnUoQ4mlUGR6rDWU-1739187768-1.2.1.1-n1oPM1QTBFB_oEBKIRQHyKJfR36SxSvDcHV5DlklDKsD4ciHgc2z2HfUkN676ji.1XMkVUEVpsVpWUOmV6ct4TPxmDHupbm_tHtnudbKmw39vGiS6oQTx5.VqEyufN1RgUoTpPEzJC_lgt5JTfhnAaEANcIVejj6aUgD_ln0Pl73II_71WF2ujU3URZ97rGCPc_usvWWs2Vzh2F5DA0fr_hXyvwEPjHN5A8Z6VeI2EB64zB7prXUGaT7w1Q0HVYWOsTfIm8xW7o7IMgJobsOljdfOdMI0qb4wmiJi2gveReCEJgZSuMMgoCiuhdRcVREBuAXJ.fbJMe.PFYvGaCD8zSRaLjxdRebB70.ofRSi0o1lMPeGSr4gBHzKU5aTRWHHqMxcs1YZpUH1KkT.Rti3CWVZ48Xf4sE.EM1Rs9wXDkepGk76vnuHVE4w.Q87hirZHN_hREWeXDNLWZL8JSjHz3VJGSQuIhQO78FsCWKBwoyPX_Xo4OiWemRbJQlGTtxkFr25lVt34_vcNRgs2kAnuXDpG6b9dObi2AJEK1muvG8Ze20cRMnagFcB.zqw6kG8ILIe4aNzgKJhUxJStb0GKiGS98o3KNsqZUZRZaGrITiZ6zFrxTSN_0c09Q.gFK4PqMCLMEUWBltQ3BRVE0OnV7tKBEx1VJNoCo7kdliNBiRAD_oNi3WWA2QosrY4Ty_hwPcO3eOuXCKBtwsw.Kus4bvNzZewPxMSvwD27HXJMxPgicF8QIFuE1PAcYJlAPmJOQglc6PPEmEkjijT_zbnavhtMoOiUvpNXQ.o7C5cJW33jVAy3MlgD.kTIks2q.wFKjhuDXx6QS.mnVgdNru6RwkAjRF0xFPbjnlziQgUkFvkjP0.iEhxZAsjdh.Wi6KB4vUTadQhgs5rU0XlKKabdyqFMRS3GeCrl01W.m0DoROyKiI9o5iDmRAnngWaYfLtRzR8YFBilVmFIo3oM4SppjnVlWsHmtVNIQedZQgOKPzRqbFASCY4Ui0atZNDF7AYE_1NZq8FZWJvQrZL0JFsDxiFZ58bhQkhJMRzw5uZ3PQE6501dSlxgnHlXLfwo0YTr7gnRy8ueuOrFwujmidioD4o.YS0Dw8_VuVZZN0g3TZJ83hUoRhpNGvxQCD3fSYi2XESQVhCecrB_lmme2Fu.lvW1bfqtF8Mle_i9ArjUuYUCoiXlNFayJ2gMz5xb4IPbP4PcLE54yJ1U.gih4Qk8TnXMvfFefkSKe_EZVvHM8abZnpRRg7WTlqp8gcCRwZ3OnDVMK6B89TMRoGzE4k7En76ZKTwg7T6CqxGfoqceZhR.FCqnKdA0wB5bl1rZJoT_fKbnt0fRTKW6Ebhi.sJKNO4RMXqbsfm2FxZC4DG6EcvEs_kIhyLUd.L.HWe3HWKiiJnJarc23Q0EjqHH9nqZK5e0d3Q4_JboMUeMfyFcEqWmDHrIs3H9ddpbtk5C80N4x81qeE4pzR1KiA6WwYixcT.tw09Y47ef0myuLJPEt31kJAaPGbpha7uiDdUYoVlhH4L9KdJ.GtJj9fdyRuXE5quNMlyBWBPmrFgRDrB9s2i_hqIOBNHQ6gJrhov209Nf.90V3zeskWtl.16zK_er_f_YLIfEr6a6luynPfHOCXJxIbw_ZSwfAIJ98OPHt5GyXu0vI919RRyGMJXaWWZ1eLeaLUGuEHv8oIWj5JDvpXMzuZas_n9mkHXmSp4CZT.EP6vx6Z.vUPOneCE8ZhPBKayjHCdTaemmX.LN9F68vqw1T5XxISU3UW3EaQfohnY48.nsBMXEjeF6PeKkobe8QrohE03k69aVrwRqhJ9Kbg.4wsmA8_k184aByAgCjGFHsie43AoIpdFw_XhGTdR6mIzbMVanDR.270HKLPGO.nzLqGCYemNSyGzlj92AL96my6lLq7b5Tvz_HvfrUWYA.idpHZtsTQvBvl8Gvd.7NKKQFerybodv6QJ0naNQhOj5XkfZUZJXkk1K6H1XCpHDw8.kG8cd2b.oikoF6erspY6UyeunVIMpf7hXpaEke_avVmcxdCl9wmwrkAVebxp.noRSDvJbcuf7bUmTlmgju4vgPe0QVZVoHmKYPHhTI6LHaRY7CkMzUeJmB2bDFAE9r_W10L42MJEEj05mVCBKMWKsR08tfMXgEtcYYkcCStsav1lx4l7d2SDEYkEglYCZCsA1KOTVYpSw0NhJ5Ed_XwFYQ44djDlQbmgFvXbO8Q",mdrd: "f8k_j6q.l1uXIrFHgb4oUjZ5YQB_NvDxme4glKyoEuE-1739187768-1.2.1.1-NkikYoWnN99O6K7.2YORm8tvX9HmX6zR4HfnI.8NOOIv.v0p9pEI5hXK6Z7gL.yQCzY.jQGrQjMteNLYebrCtePkCpDMEWE_u2EaYJ.LDkYmUx6.GhKQgW.0dlXJztFxkMG7ZFytTPSq8ELuSgp5z8zSbiwHEUk_tOK8.XXBH71H0lZXzzo.s1A2mpkObqPQfY2GS3zWS0caKaWOwiSjkpQ.L0J1nt3YfmVDIZWLeWnGWtQIoqyAayrRmTyzKxQ0yqVySB8pATvO6tXkkMacT1c3oXO5L94gq_MlCUiyhfYVFMALQU9Eqz5I7_09f.B5_fJ.UQEf2R3w41zF_KaDXIrw.kn_KjhvCgKsDAzBC2l.QV7pIEVtNVpbnPHBKasYwOPNNggpTgETyWxnh5uu8D.pq.Bq2rUj_o8WmLuoSRh2q.egXUuQT43_RxWc8yopRYZt1SK.ZPmsitlOwSylVWsmzygKlqb_.TpacWW.g8XlLt6QjB0P4fIEQ18TEGuJ.yzqWtU0.1vI6XIOjnT.5d8rRUn3ZbtqLpjhe0LTN9fh6emGUunJ6gDvCqUMJMXzYg7JM7PC1r4xhCePcDoyFUvS7KCHx2reg7kZYsu92_EQeULgmLfRb3HBw13Q6xP8ctNVqQggay.8BYQzWEMDH7acUoUBdC756XDKcvHpYB9KMPGxEYKYnBHhF4RFSw0mN51ytzpLXbv9NonnQmQr4GwMBvHQBONeYZtGSKx2LKNc3eA5cuTq5066rx9u0AYkmNj3TpS4GfOJ7FwpFN4SltgS6m98w42Ua6xw1EB6Q7bMu9JAKMzeEkLU2qkgHcG9wQkFixv241lUtDPyEeRS7SjeE1jSkNYETVroWtfbCD8jwWbD1wK8emTtqZffrFvzUv9_sU.b73j7NXnuubMGkyNJsbMJSWkWYuGitqoKYGOq9j9imV2F3Ueg0iaOMlmTTwdBMRoWhNiKlUr_SP_zxmAk..iP42c2dnBmAqa6o211KC9igjB7H4B2uVryqJ3SxPkjL7cmViYiAU4alUpNcK_lwueG9nqr3wbw1g1a6vHAXMCCe720wngCOUU7Al86dTmifVvJNjxSTd.EHi1UsybRwWRxhFfAEDB7Li1ceqxwFQXiLKxfItZzJkyTk2vQtl.ho5VVw70BvKeGYWd_jftgnm2IFF8pfQKx.OR5uGD4LWZCVD3Z3CMjhOUPjwdztEJrf0pYmRXjn2QgIExzKS8s8qJCFDINC5GXfKK2XB693n4220vZBhTa8T9ueq5llxMJCkL.kLj1YI3EgPe7_s5YuvbPKggA9Lxq3uBbYu0lNHB9MF_KtqENko72DUvq7cQo4QiflnRevfQ5dpwjLznYFaBt54oXW3lbjc4hJSJYO5iz4koYP0OlM7L.XROf3QyBaP9XJxBAR3JEZiTKQH5SKDBfESVlPrFCqPrxr5D9O774zVYGjGMemSz9ILRzYyXgpUWwjCsT7kGW7bWyZY66qgXXiLYiVocjrEJ6ZhLbi2DkzVAyjSZ2wSiKnI4.mANdFRCDFAYzSGkIeMKklV.OFX.jrjdbcLbr5ovnVeXFOZT_oWNdrYUD2K4ZurKsifYtQT4npKyrXAhFHQ4tPWFeS_FnnjUHjNI.uP5QehYyVXMGckfYm2VwZcIhaUl1MIWWx1CE7gWAn58FSE9cvTuKTmmY9uZnjOYZYLrhIFeuyQsFcNjaOz0Q_h9_ulAnU7.8Mg7P2UfCuub87u78Qv6uBJvpn91C.o6r2D3THY2xWi7dWyLG6Otl4FTD7F9OZOKSPOMy0gjcO3qA_UtZFGgUykdrGwv6do4jJ9kTnVQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fbd67e1c21f272';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\/6973581042?__cf_chl_rt_tk=zRB4YNq82cCwnCFPJ.m6S9y7hFRgS9KbO274yCV0AUQ-1739187768-1.0.1.1-XKBt61cfTS49RoVjwmRKSlUOx.s6ya1vQdxJsMO1LoQ" + 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