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-aff1f9nui.mit-edu.top/post/5471029386

  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-aff1f9nui.mit-edu.top",cType: 'managed',cRay: '9110b8000ba30817',cH: '48m0bwxlSMd3_PBQq8CZNL.Rca0J1aMIQyOD8ATj_kI-1739406720-1.2.1.1-MQrPcXIlhHFlmr780UrVmGdmOQq253nATsTDblNBh8Sk35Km8RWyyH08YYmROyPX',cUPMDTk: "\/post\/5471029386?__cf_chl_tk=Y4WQYl_acx_0onSoNwAIFapRbe_tbB2RXyS8uWrG704-1739406720-1.0.1.1-Mg5FvDXTvh_awr6.kdcuLlo7Riq_.kwTTDIQAUcyyEE",cFPWv: 'b',cITimeS: '1739406720',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5471029386?__cf_chl_f_tk=Y4WQYl_acx_0onSoNwAIFapRbe_tbB2RXyS8uWrG704-1739406720-1.0.1.1-Mg5FvDXTvh_awr6.kdcuLlo7Riq_.kwTTDIQAUcyyEE",md: "BpnKit7NceNv4uPDadZtAjlMBQ6p4Vesd7zLymSIVg4-1739406720-1.2.1.1-pupt.BuZpCdSRcZmXNP8mTl6.RDx7KNYJqqhHJ5qP_CvtXeUKWzeBWxAhkobELCK2yBgoTmuhz.CfJQK_5uygVfLs8GqrAYDhvAoFtE5_4uWZJdPJCv1KrKrhw_gEE5SVPth7biT8ya1WEWVAdvRgBnadnvEON.INuXiPv0ENAsIUFO0l24oS2dwlpj8FEDE.m1HO34oDFlkfe4PTcyNP_5Uvu3Rn_O2nZ1oHUZpOqLOU.8vdkIBrUHCR31GL1aN5P42s4H23FbeKhV7RkVmCbhJAKwW7EjQpLgKUCeFop9sJx2TGbyY0rw1dnkKAi3S.CJaonwewVF4.HaehufEYtrN8gTFMKQXRd7Eo6RnQv9w7jSHamo9MW_ggQ3mZWRzdiQogGaccMTnz55I96KC9sYUqnshElmeSbsi7A7iWjfi_rOGD5_p2iybcyuq.P08Q752_AIU0.pXTlf0CO9AbInGKCpikSZ9YvYogJsHgx3GktJ32ZQfaOlMi..BGk1yqgYoA4w4B8SHclGFo9tEUmrrRilcCwEQsmYau58OrKnj22688QEvkI7NLASH6X7SvpHUD5dML3v1eRuKlQ1LEcosAY3iqiBPyvDYsJ41Wnwpf4Me8qVkxwkcE272FUw.OMbJL3Gwve80CNAQ.V7BdVvBv5C4MbGnVKgYG5c.rgMKewsQpLydJmeE4B2pySybaKGOT9MNk3mojwik9tVfqaFmDSqIHTzssJxS8sn4fkO6thRQkTaQ0BS8HeyudAqtx3Upxc6MfNHMbLmVtxaioAC47fMGm_JwNDBF0OIWPuo6F6pYAZQkTKWB9k_ew1uTcQV6ZvkykBiSZUL7L7aWkHpj6FrnGlkvgTxFzR.0MrUiyyt4qRTP.S9gqjGF3mm1398bgKpiNYDQxInt6EI5bRJNVrnUbO2sW3QWoFJ04HwfO_2CUNn8ssoqQuRx.iA_McgS_03Becn5.dfx0EhYcBjkCtQSLod1h4CcwnKqMu6hvmTIN_ZbBhX6vCpyKd91Pq6MAKywRaQvHVDRuYuryXOBQWAowi8Q8m487ihjvxcQQt4b7IkPjpKWqNk8hUUYZLSMiTr63jK1nhsSIha3jehEKRyrb9DJZxShuKkxa9vKjB9iZ6t_jB2BxuKcR6Q0VNXGWxoIO5j1YbJ4vO0rZ8k7.6Z96tFwfdDNo8A27YcRF0kPO7UcMn3ug.AS2vWfpqHfY1i5HJMtSjTdAF_v0V7iP3JS2VDvcbcCOEl_ua8hNrtwe_Hphc3niE3emDpbprCNxWFAnSEeT70.RaGSYlWEx6LucCJvwfTskdglN.D7pPk9YlE9nViA0liE3xp9aLurVwhztxGRGkIQCGRi_PMKM5WcWc1pb.qmLaI2SL2L6pyws50s3DCNYleX_XP1UG6OzE6ZKVdu3oWmkQ8_J_1bQ_HF32pk7G8Zt27faNeTb5QNvmlo1bHvNvMYE.ejsqnyeBEsN4uGJ5w77bj7G.tMXPZpDXhxp_6INdKli0AfLKHnJS.6QBJbqyGJhRtIQVdoK7j_KRCnr4OLOy539rsVBysu3FwMSiMfwnSVHlYhsjtOFMwVd4sguq4r1dLW.4S8jwsbJZ3oKktMqaEjllIqALcktPyP.jg7iAPVUCaSR9PRPJUp7j7JSArehWze3zS5gBgMT5cdiZdPA6KyYJ6BZc6.48ldzMFxyTwdlQdmfqaLysldYAK3FJqLvGwDqehSFFQXu9U.Z4XadRocH_h6iEYv.9_DD9WiLJ3UuaDu6DK.mld1JV5_0z3.HRule4FA2YQaqZL73l.obn652UEEOcBLgeQLgRa7ISbb91aGiYlIzvX2u99.ikVcpyEN4Qb33lphnQStltwPn.YP0n77HF.5oP9V7X7SiJWPblHgLQ48SD5vawJe1XU_X96WcFM9eP9HsdRyvWGvSWAxMCB___3yyvuH6D_95hHJuGlH0m47n5Gw7JEq2ZvN_6EQF210LBHDYJPJqC96SbzXDIk6RP5CkAWNkSWVvzZML1Ms6s_OhSnaK92jRbwe7iggGC8Q8m1lvBrVWd5TQu.K_mn32_9MPyuE.cGxavmnNPefadsRe6VMfLxKCwNrLNKrZeSeBSCwhkKfYeQhIiOEYnxhqaLecaMDKb5rrKX9NmzpAioox0w96RFm37o_KmU5_C4DWrHcm3cIiq1RrXSnq_lNW8.pT4Tz8pwBEsh.He.QThZBE22yoeS_FV0PcDBU",mdrd: "I1tpPrBXTzc0LmXM9duoDgijH5LtGE1JGLrN8wAbbM0-1739406720-1.2.1.1-LGkOLjMzNX4_rdfZVJMx0OWMcnLfk7Ynf7scwDX3t5OteTyzE6CDwFfo5V1GLSOMskit11T6OOL4geYPGrXINae.YIKzdpPXq00oLph45Ron4FI237ubphLCbjj3Ncuo5gpBK3QCfAvMoHn79gFrY.5mXS7f9qzWnYaUQodyBm7c9LdWgMtqzw9k4iwR4E30adyS7Gg3.GcIlzCLAGU9n9_.A.xbzm5uMIZAWBSKxEsgjtYCCHO7kOJqSJrKemKTtbM6aI554eCQWug26NfKAv2MXIVESNqevQLHWSQFvF9A0tiGQs1r4tJvJSHYXmkE7bMiwtE.gY7YGuW2gxStLuC53Fwfn4W_bSti0ZrMjFY6oozDQNJ8uSTq2ii4eDli___Ctihj7eq3YxE1l1NPg9kAP7wxWrfnjaoThU7bEK7kJEGyMXAFaUj.ME5UAdj34QlKQJxPB.LkLzkjxxg669_AsFzyGzCgmUGd.52HeHQ_OidLDF_DWeifA_MZczRZZV_AjcmdsTDRV7sITguB0X9akH8jXM3RI7mbzd_whsC.mD_hOCuV9caBntoBDUhWZ4tlZOHw3jOV_1oCylkvbB4gKlOB65veySs67yh10w500kS9VeWZ9Qe1Das.4PzpJ7.kbtrL_qIxL1bJBwv6dFfoJYLUyiNnWq15eJBE57_tOccn4RlfHKZ2e0cO50BDYBSfncz9Y62mE2GLSquGK98ovydXEgIsiC9NQaI6NJenglBeJbmAODGheVaNGwv3pmdk7HHIcTej5FzI7ou1l2d9tVaDzLbixlWpErVYgZdd5k8BDn0IdIApiqxz7QQsnRwdZ1gcB3GOlWp97Ak9LXguV5vHy3pwjPptAnGfqfSGXm_2NgIyHGJlcIa427nx1myLz8X07GxHHvHWNOp9OmyM8fuqgJU.c2Ca8WDfSF.aZ6.SgFsSHAZB9mrOXsFxFswSDukWV7q8yZ4MOMKGVGDIdtX_WyKMbvZUlwOzcaQBpSGaBFWyf07mMBcOcm1xvlqLakwrQZpWwdNFzROT8mpA9mwMAAbPlLg731LuyABgVAdwJxO_gR0iuwjaArqTqoEbYtSopdiZL4tr60wX4pyITC8QG4L4lY7DsHEY9cRNFhI9lbvnV89_3mVtyjbvrmGmfT18kGqSJ9spQ0Ajs8JVVnLvCmqvtV86PuivpZN5RWwKL_4r4pQrZJcucw1XXekdpP17YX3OkM.eYti1pkwTFWtRnrJ8GinC8WQRrS2KQOTN4GNuVB35tdjW6YxiBGwbK2sp2MSFgN7Jmf7CkqvOec7MQ0TzdDLJv1g6MMepyh2Q8DiQ.e8Lnv_nUk5FJmQdg14UnR3S1lMaF9eokSUaYPhU.kn.055hspOONDwZxpqUuiQqovFYYrd1FG.gttz6sGJG4fMCV_NaFuL_Eg4WFFgpmXcEa_jUIqW34TrRwhTbT05vXNomVb30uF1UjIjI3Lyt4cM5fe.834A.vnLdtMUTj87p_iphu8Meg6TfwuEhrVkPIzEa5slb4WTZ6luLI1c5.SzD1VHJGhSNmY_mpDmUmdILqaMkiVbT_wH_AZVDny0LUY6QASlXNbGqqHDy1JY5486mhepnSaZGdRGH_LLk6_WL6HIjAxvUw6ttejuJWlJfabp3PWnMejFESGKRWaOvdt8cAjNuEyKevUeUdRT1QVPojaYcHN7MhjX2zYIe5KOPZ7D8SFZh9z4DxeUOS54HgFNWBdFrsWEPP6hxfMrMMAa888v39JZYqCMVeRW8m3BisTwq_i0psuYLpE8Eus8n7QFvmtav1VuCmVWQf22BMoMQ6FYewMlxUds"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110b8000ba30817';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\/5471029386?__cf_chl_rt_tk=Y4WQYl_acx_0onSoNwAIFapRbe_tbB2RXyS8uWrG704-1739406720-1.0.1.1-Mg5FvDXTvh_awr6.kdcuLlo7Riq_.kwTTDIQAUcyyEE" + 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