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-aff6i4hn6.mit-edu.top/post/4689751302

  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-aff6i4hn6.mit-edu.top",cType: 'managed',cRay: '90f3af9b8f92e62b',cH: 'TF7e9esO3EB2Gtz07ti9xTweUCCtC0RQ7xk9cDzGtl4-1739102289-1.2.1.1-dyM3qXmp3iTXFJtoXv2_rdDRmZWKWok87yBmJkE_4CkeB1ZGbfMmRTW..d2HdMyy',cUPMDTk: "\/post\/4689751302?__cf_chl_tk=ZqIFBUow4lzAhdUR8clHUn_sTov7OkfLjRTHrK3QHv0-1739102289-1.0.1.1-Qk8kggpTRN7wr4qr1YLL1VbtqRg628jl451.zJGSTDw",cFPWv: 'g',cITimeS: '1739102289',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4689751302?__cf_chl_f_tk=ZqIFBUow4lzAhdUR8clHUn_sTov7OkfLjRTHrK3QHv0-1739102289-1.0.1.1-Qk8kggpTRN7wr4qr1YLL1VbtqRg628jl451.zJGSTDw",md: "FdCWiSkKrV2P2w6R5ieMmhbODxNGywLGk_M_tlR9TMw-1739102289-1.2.1.1-J__W.zMxYgABjyCf_z1bZG2idyVwnwgnnXApOX219XDWnzMwUHdU_LZ_ReM5n0.GI_e2A3x_XAdVuLAl7riqKRy.ZgzIjWqY0x6ysqsMRryN5w10RelAfteb76uUVXTWEp2.rIRPM6Za0BeOPrH7Zfihqc.hXmkRTab7wxA2hm7YfniCszYcfugb0ub3mMS85DB6TuR28GgOeH9Tfrm2k8zz1zNESVMtEzO0YLxXnxMpHKpY.KYooKzpl2OTw9CeYEqSDdpwf0zxadpu.SqZgk9kOG2Ro_OT5PQ2.ObjFupb80h2DMTVpBc7X2ED72DKt92twuO8ot0MaTUqq0j.914xwcnCRdnwKUqwoBaxr5_iR3P7CGR2jKewc5s2sTBt0legResux77QwhlnohzLUd0eSaSj6dFsl.jdkOcUKNW.ZVzrQMMm.Di3nAq3puMiNAnVPhBhqug0TDavIAzyOAhdHlTW2DyqIkz.rxSU3rKKtzTCoxUp98ZZ94Cfs2AIS26KWbKtNCOeZ4QbJoUi5kKHoOxHbX3KV32dKkBRg6F56npCPRT1YgJQvMyhjMxh492N6RJBFWF.FX8paXhurLFSjs2GtiE3sxW6me4K.mfiyAt2y8w1CKx4saBCOGT0iScwwsliiOypqQCMZK2Mi8AWuVc8L__AmPB7zFWRJYNmw7hK0sXNtB6UYn2cwnn4Jwbg.YZSavcSqakED3Z9D16G8iqSU_Hq77rKghJ0GHetOIL2k3F6ui6JomziY47Zxcop0aCkqhjQZXXek.D6PH6k1iMIQAt9BBhNBPgahkAYtAWtpdkxDq1mvyrk_1f7an9k187UIEHOGEt09yUdePyU.krgin3MAaRg58Vjf5.ZInF_Vy1rf5OcsewUw0cJB0SvXg9eebWTvMBcdyVaTGtjBbJnBU7uluWIwu3aDiEIr6Y1CiW9zB1KiQjMEl8wHtxm7pea4NPFPhdghBI.KYIXvCQIVsMvyqdzpCQuSgLh.DMiHuBQBeak5j8nEKXDjOozUmDnmYKjc.BTQddsUDCT4ZUrdzsy_GM9IQ9a5FgEChSpnVGqmbjvO0_LHkNCDsp2PL8GUj7TnwAPUo4pTqMm4TuR7YxfIRMQEg5fVDrr2MWUzojnkZ_oWMUNfmq3sOMYwojwA1LGFf6h24n5jqNTnACx1fei1HPQlv66UxP93Mq1VBQAY7MYHOyiaaV_sZvgYwEB3uieA9aYHGts7TlZEU4oit4pBEXIBtpaodqiAwpTc6XZQANLkOlTrNOZMOHdSX_RviO5.jNOYNamyFeJvipnR6GnVmGq2WolGVoj8JI8rVOA573FWwH_mbLMkWpX.FjnTdxT9tEcg.1OjLkiu3ZOnvzrSy3EaX76LE1pK4DCYkcqXlMeLwzj1b3397BqZqvhvfxMYmGvlvYt2KyZIxNi2yqEVltAIdl2JTZNgSWVWjV_riCbEzr5AWXERXQq.WAAYpZ2VSLgnq1tZhudh0us4fwg6IZ8xl9ezjbNR0.MNkGm2APHV4rBXd62nooSW3GrPUgFoBKsSp.m8Nu23xyUZQ8aPwYsWhAxBdXBmQQ7Gq7zFpAiYDBYU_n7KJfvs.kjRP6KEEKFXbZsFzUkAzr655Wcka22GKmxwdib26NM7N9DWnTuE2q8ZxvcsFT9yKhPZCRVC58jc36OCEV03IHaU6rcxLa5yJOdE_EhPD2uKuEYek8LWtRNvH1momaKLXABgdIAfDmjHTWP3Qe2uRv4jvnDMvELBAexuYNzBtt3kK1Gl1EKAt_Tl.S_DuWXVZWfhsyHZjVvLCjsBzW7JoVBgkeXFvRojWNbavG_9HOP4kys_RGmkZh2sLHiwD1DFIX2sCuYrYQ3KqyoSwmn_XiHnTXBAO0qrtKo1.o8oVZn6uGOP2DIpBIf3E82_d9KHF9xm.35OOYePDx6cKRezwt2.cjfHJaoDASrgXlirJ1i3drAMxTJYKcpBebJfx8UKB0fwbEI2pMlx14q2nuQqNtX5zV3iUoQJyT45FCf1q93Gp.R3w_aMu1OqsPZXUZk61NNg9kLUXgC8Th0f1.xohCiWb5k.WKkFznVmPFkDNFH4k54sdl25YMhJQLS9jPaBVwL25BtyZmb1GNVT.p1qaEyHquf_0eG7iX2WbNs55MLCiCPF3Hbe1TwnzajCnKllkpRwLijSuf1FETKsDDsJ8bbUygxgXsofdC325CZyzo.1zG1sol0XzIj1lFv",mdrd: "yyL3WczVwchAH3WqSGA_cN7viIrWHV9_KCllYrILSCs-1739102289-1.2.1.1-i_QDRvwr0t2JEeo4Jspiosjv79wun.O7tjXIBCNxLlVkJZSC9.h.YlodSuGvEXxQQMOijdR003SzVrmrSF64yG_hRkAS4vZL5dVUOClOcCoUo3pK7bp60z8fiyO0R.tewSJUodRan9L2dtMguoSKle8aFFc_.xLuUTnHvrQYBy4yvkT.bEvWhwgagp6ujoHmsQF9eVjbVM0MLwXZzrJTTwY4adaRoAV0ZWZJ0FzZYS7aZxRx_SCom8GqveliE4MnhjtHzIsbrv_WLMc59qT8Dq518zEqt8jkK_7my9W1UfzYsu_dJvuGGZSzQ9ONGb34z0RajjoG68Y8i05_B_Uu3ZhR6nA7xmAbxUS0b.1KpD4gaOAu5vGIVXyItJbcQzFgiguADY2DtIrMfbZptubam.L9SC6uaulkIS67EJ3h7otic1Myj7GKtpw7QSJzM058oNoPfkV4oczmu_L0T.86tGc7iZUTMwGHIfeXlVOXwJS4jbIqpMcFHq6_o3sh09oFpOEQimrD2mvH6IkhURndqDc8uJyOESALQ2aWawozJT0WK7q43l4uz4i4WycATcrgfR7GGiCYzPPQ07eQvuijX0b2gqA55zlBPMzdddL9GEVXwneyR622qJmUE2YM3rNhWpGAwoE7z7YikoIYeVXMmO_W0d1opIl.1Dw_fimlV082FuO0CCYDCZl828OI3EMEz_ZddBzXZ8xUyFcRmy7ULZCm1DRJabvGWeNm.e_T20MG5AShBnXKPB3TIny33.2hPsFIulmUfqrW_ODixYejLO8Jn5HdlMlUcyIJbFfsdkGgYxse1BZxHo7YDcTDwmuxtFX9W8KGC5a.sJCAFZGS96dK7Tvl3uMbVAxGStYdJvwpDYIw_DcF0SHlu4WxYiIlT15NLyfifsBhuIfLn.E.iEG9GvNfcoR3vmD8P7uJJWUFW7bbNE8mKSUJbqqPZZaOqh3M09qvLUCLLG18_9hud8ZGMZ3ry74.iAE014.HZo9FKQ9IlgR1Ztxb4UEJup2Ty2U9ajEpjNeyuJ3t.ADxt9yUS63L_yHgI_9TEPvYaw86cFNgnfAdhfrHbCeThrVWylncctW7lCDQjuDHBvOnPIOzrsqtMknSlXnQlvOdm4nghKLrAr8hmcxqcb4jpA48KuTkGegNrAR_wVQ4hn1Igm8v4YrVZgszbmE_MEbdIdNH2oIZWNk0_D3gfD05.A41UaH4KqtPx269cx0VvKuTFGiFKctBki.fH3yHlpF99NGKLbgP.wYFbpkODzkWd5w40qJaTG5Z6d3PXS.8nRRtn6u9DU5xgqDBrTxWRXPfJoPkWy74yYIn4gFSPiRYj8ec20YH.oDMcZe_WpDocoRLqzvuv_KaUtkLcw2nmuGsdIwt664LPUiLl8X3s7vALuk4_sDcjzJSJ2ZoyrdLBEQk.INLJPeK8v_Eqst05WhGrXyF3HK5G9r7Ee4OJurcagV6s2x78JfGdFTwJhjYU08mt3VTIhVfPGvZhPxupp1.aAg14NTURig1gK23vVcV.d2EO2Fe18.EePsJw0vishPLR08FgU4yXRxAnDSDnpKKojZOKjvKwq.5OnhtL2qaylQ77RRXM5bWjiNhDk0D9RESEOfFJgkUnd_mVx_SdTheDdygFF6X1zo7scQQcGcLbK5E2pSFba3hteOqoWRsr.k4YzW4ZNSsAPcJhtCZSY84Vt4OkY1yJcNhVsIJcna6XfBA9ZRxe6jzW5RXtbEe55aq9w4Qvo0fhiVjkXrMxtcyI5pi16j4D0aAeGf27.BCdVUX83jnT_.bwB7oy.vwqaxxmA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3af9b8f92e62b';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\/4689751302?__cf_chl_rt_tk=ZqIFBUow4lzAhdUR8clHUn_sTov7OkfLjRTHrK3QHv0-1739102289-1.0.1.1-Qk8kggpTRN7wr4qr1YLL1VbtqRg628jl451.zJGSTDw" + 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