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-331261187705.mit-edu.top/post/5970126348

  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-331261187705.mit-edu.top",cType: 'managed',cRay: '90f192a14be62413',cH: 'jUeZqNa4kEr6w2oQvJB7nugDFSkgocHx3_kmRRkVDIM-1739080130-1.2.1.1-6sBn02gy6cHhwwpCtDq8eUQKkcKuyW.OWB1_vpJotdKRqvK4o5fcTdnO_jhhdSlO',cUPMDTk: "\/post\/5970126348?__cf_chl_tk=b5Lg8BIEWG9cs3V253EAoR7vVuNiImGHwXdXUq.wgWY-1739080130-1.0.1.1-uBJqgO_CwZEwFQZzGscQG3_RjPaOilfwze5JA6AK2xc",cFPWv: 'g',cITimeS: '1739080130',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5970126348?__cf_chl_f_tk=b5Lg8BIEWG9cs3V253EAoR7vVuNiImGHwXdXUq.wgWY-1739080130-1.0.1.1-uBJqgO_CwZEwFQZzGscQG3_RjPaOilfwze5JA6AK2xc",md: "CDWUx4.2QAyJCDYYlj5IAK1c4vI_CgFYbwbu3MrQJvE-1739080130-1.2.1.1-4gE7uam9WCjdu0J6yfCZVWT_WOA6bdiEd.S98LzvELepuqR.YmOswLffx9BVaMMjy3Huaewt_YGx9eFO7lbvDNPS.DosnqVQ7RUwzF9RUiHYXPVTIR3UAXALfQ1GryvTmifH1hZxm3_GVaeFPlnNP_gq4l1FkH4iJakWsUVeoN2.gkvzQM_6jeYa6mdDz6_nvuZVrLnQwHPVIgx7rAe0V5nj2yvJ45ZvqqBsrHMU3LT_JNI8hYLvQ78jtQee4Ywz0tS_Ae1r8syb9lmmpHalBZNZdJ1L5PD2xUaXgZQOMzbFohlFDePXnyPF5tqcG.1pavmxCF87wYCo8LM6tI8Uf62hdrHG4DKyPG00fsJayFUCOxyV1eWUdOfQc5mXVYEKg6jYY.kk8nXF6qRwAVJh9S.8hpq3NjMIziLjFGlfOQvfs9TVjfZSovR1ZQ.QVxn68wt9NBBQpi4vpjem3qG6E7dSNu9tUt2JSyB7bTQu8Bl2.N69DI7VqDYuQIk7UbrEAS7kM4I9iX2rxMLBJfW3FhHIt45MwMIeWbE4M_uIRieQcjlP2mLBRpc_l1QVljfgyJfB4yznecMyUXCCZdHdHCLBekyiessMkRh0uawWX_fCwxfg23s5YmfU.yv3wx3CeP8UYXAg9qoBU2urDQVA1C8TKQfM7X_Msw3giYMopLTqvumfEOvyh2TkspYTY1TT4RCO.8vqhea2UhhRk0LA.1v.QYMg2jrusnMaOKqRc0GED3du.gUsULPP8V1yD1FU1uTcicEolLSUhDp1TTO04b3pRTau5Frf.hcxVK6qgcuPQJO8hy9tKBDKcxv1go0Gm9b4CqqTcNAh0.JvfrXjcaZ6RgibPnkBQFrgMP6T1Kp86lRotLrbU2RWXjxI7WhM2WpGl2xmKs2W93Yp8AHr6taotRqNa8xPPRSRV_40j.kIl_YAgL..qttKJXD65g4.SNnQmKUmIUlwfLBj9rVyrvoUgXhCQcDGolYAUPtFal_.0fLJi5cEIIyTlow92w52cNs_BPdqn5GAIPqo8UYZE0l3h7_84hNP1Oez13B8tq08QecT_1E0PHUaS80T.lafJowY7Qj_2j4V5ImAMBDhppVJXasZRpkCPNxhFRpT2qtnY.zDiLxLd1TvcxnDZS4P2.fTugp0NcBRrEWCXZ9pARSRZVIwt5k5Pu0U53gPAsJ_PTqkT3I9uk0kfuZilJHEvjYopqNQnF0a9y6w0z9B_NHpjBak0NOdwSz8W0kH0bjMB7.T7IjZ4JNr_u6vaFtA1QVxnUyNTGuji1odINFfiC6eoZsFm6BxsB9DkFpKxqOlYrIBhS3F5iaJMfon06GLvBpBX4xvpMSroFCS4yw8QI91b63DB9bFL0vBeRh464cwi8Itazk8rLruf0T.tP60Jl_XkQuVbQGrkYgfJPvbyp3Yi1FLydmo7EUKplmG_rM8nGaqhJuEinA8djWfo3Vd8rc6STpK2zWK5qC.YLk7tUMBIKEzFrjIT2TL4.iRXdoRyqvKoooJmjpG6GWS2EEMwR.W0eVHusES5I0OB_ei6hKlW.00SRb7TkXSAW8yPZcpI42111.hoPAyJrwK88QZUmDb50CVCWBufN_hCeuEikxa_JrUQN97R8ezV50jwD49adGbnW0jlZ59zdMijNc8rLh0eRy5q2rX8cLEUQc92C7a1MK1MKIFFEAe5uaP7c0toc6UaKNL17j507mTKZQMimRcxxjyGL5x1n6dAOJHbGmHSYoIaISzpHhlAHrjWO2Qw37lGZ_72Z1fAV3fvn4V2K6H7y0SCRd0DoU9Lxr5rvEdAjxo6t0esL93aiPlBLvg7lxusPVWzATIG2Ov551AvTpP7YfnglemU2cgYRxj5StcI7ETFgjEIZEFqlCPhvxPmojASERnuipJWUtCIDGx_cMjmoqdpOMJUoADMdb7KuZTXAv7SJUlFHMQce_ev_yAIQnad2GjlvYIvsH9s.vB09mD9nue0aoeZqU6_hOuCNtJEBQ5Pc4vDUsJ2w9_iQC.angoaiJbyXsHiF5Haq2RjbWX7660eTOFSnewYyb7EhGZtNreZu1M6KFrNpOraZMhu2CtVrljtpyUVWJUdWpr.nOwyb9qabawRnzF7AeQTS8JiNr3Yujo89NvpTBoYMdf9RGJiEiDAdgT4t8p7L4LfHQ4P4qtizzDFUKWoaOs5EkKX1KW.inYoRBXy2reXBEx.244cQ1wnhuWEnZB5YUQ",mdrd: "YxUWQXOgClVfY.2LYlPRlDuxtFKFbrWTit_fQYXmvOg-1739080130-1.2.1.1-6iYruh21uYkTXr0f7H6SGoRd158O5JqKz8eU_LLnIydJuob00nv00DkRbb7wDZAz8_lvxKRJidq1Mhq.njs5g5k9dxiMauEJvQ6yK_0JKvPSn4.5LCVeLLB2AH9L2zj0bxchMmh7WUDAAccBEs.WpFDypPH9o7vYmPNGT4bAQ2kDfXbB.2i0gKeRzAN2.ctx4QimM5C.lIyxcz0ZHJv8n_9cgYv8enjYfv2VdGjf8UHqI2.L8A6OxAwMvq6_qknyhDYBtOTcPWLK_y_9douKPRiLvjxCRs6Un.mgzxymWWduET5TT1yI2DEe98ykU07iEhJnE2nTTSssqHxtbtoignkqK63f6VidQMmo5wqrhjIKmSqlk0QcorEjaGv1NjiFDQebD1liy7OCwG35tnFEZbMvu68xnixk1Mqp5gvD4rjhKPPg2SpFyPAYVyOjsiog5c682okV0O7Kk69V8P.pjashSjxpxkaZ6KRdFVEKNDpTwuEZlkDvZWKzQQ_v3RHdxR1X0xmTOskohxOAfMNsJ8Uoim_NxB2msDfbkOZCvjDiLLq8AebQsYfBX3DRdC7gH2xrw9L2.368mBEJTQLlpT7h2Z6PN40vtFPRvS9gzMaOck1Eq.PyypXoIavZi6Eu1WC3Apuby6vAT6GW8O5LTmLh6zGyt1ppIASB9OePCO2p5aD5WpQOPawi2Y8aZM_1eF5jaY3QmlFXv2ZnxiDfPhnNRban5pqa6EU3FQ_y5YA_SGksSNkJF9j_XJ3Rv8Cys_vSvQwPMZE0KFuKq86pLdpjWptAARNv.MwbicDHbY7C.VoLUoYJ2gE4G9ifpbcg3OJJAER2T7mcJOecq61X0dxdpFVQf9hXZgkXwoJ9LoSq31ddYzowvsupxGA23j75z7bvzF0TtoswxxvbJj6cJCl6u9.dhlTD2YtjGbQm7foG9Vms7LaFB1yTux_OVYULqMBXeJqPKglfRJOVbsPRU6QC5nUgr7zAKNW9WRuv6KljDL7q0jTnpyIbcTg6mXLeTDClzma_KVoF1WIFbDteJuIl8c6M_nS_yfNJstGrtnRilHxv2_QhJF5e.fT1hnFrj4d9coVZybG2sQaXNtu9HDn5htUbYI6fDuYi69YCe9IcKgB12moHMVLpHDZGnXGL5bbHh0ngv0p4Ukx9dVbIrq8W6WYV45stVy1o5Bo_bLQ_jn3hd6KP6z9MUz2s6LZhO_wAz29ulh2A4xk_zmlSR5Yl8TQJH1EvlFKjUqSVzSzlzDX2V9r6_cEqQTS36.FJsNlC9XqUTyclhYvoB2W4Tf6FQdnQu2jEL9b4XM1Y4BQfV.2GOqvgqpzP0txKg1mm0n2GxiR.cYAcv_if4xK7zwRW5S6USDykCJa_Qj5GaNtufzJ8MvnjQyQrd4xJznQ7IIiIr6RJYi0ayhQS4yqF_6bJ_33F2SzaPB_HH5qUHDfMNzlKJtSqQ3znCv_6_ns6V6PiBD7rfbdnni8kZxBLOIrwu79BLMe9plKnHTxtQ5zv.l5yBMiLIzkRnsxAvwail6GtGOFq1wwGFTIG3q0Vg_uY5m_NbrXQQsQf1fL_FBZqm30mO.2RI3wGyv5tVZpD.00gGAbDsYzwsXBrzFnnXyjqol80SokAd0S4yvW0qpmgjurbcH3bmNAWhsirtFrtvXYNSlvFQtg9BFqGOPx896uwB7e.ZytOnYcU4umDBSfywIeoYR_o3GBvSwJZ2nsh38akB78lt_fX0vWg2_pzQSeajcHmVirJVMe82_hWLyKkYa7kug2CvsIQJI_g8dQ2tZN7GmKk6HJqAn7j5c6kfOylhhxMBEdANO1TuTAquUE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f192a14be62413';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\/5970126348?__cf_chl_rt_tk=b5Lg8BIEWG9cs3V253EAoR7vVuNiImGHwXdXUq.wgWY-1739080130-1.0.1.1-uBJqgO_CwZEwFQZzGscQG3_RjPaOilfwze5JA6AK2xc" + 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