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-aff67brvx.mit-edu.top/post/6248317095

  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-aff67brvx.mit-edu.top",cType: 'managed',cRay: '90f6c6ff9f11d6af',cH: 'YGj60jlKxWWHbIQJWwuPJcw1LHFFiKpehcvGpjdoaRk-1739134704-1.2.1.1-0WeRSaTv4oNwBztochgGC5rt4JQnIYk7PyR3oMcp0GJgrqVpk6N.a8JDaulUieF0',cUPMDTk: "\/post\/6248317095?__cf_chl_tk=rHx4vqvoM40m2t1KFYWFgwDAiBeUUP4XooT608YudZw-1739134704-1.0.1.1-CMsSpw2qON.qR9t.keOCd1cQJiPsYLBXcXjWnwsNGdY",cFPWv: 'g',cITimeS: '1739134704',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6248317095?__cf_chl_f_tk=rHx4vqvoM40m2t1KFYWFgwDAiBeUUP4XooT608YudZw-1739134704-1.0.1.1-CMsSpw2qON.qR9t.keOCd1cQJiPsYLBXcXjWnwsNGdY",md: "Oq.mZyzFOlj7BR39CshJ3XE7fcGdU2T8Z2HA1CP255U-1739134704-1.2.1.1-akjXyfzeqw67vs5ST4FPRnyb7vf63U5tCS3Zzmcz1yfhV1m7a3WirWabxnk40O6I7n7LdihCx0ZSRXtLuRcSi_gIZn9AZIswT6cWZl4siEbbNhFsx0Zxfjb9cfnPw7MYjgl.SfwTwAnMhu5DTj4KMNPYzDNYcRVAfIOpNur.ylDDyMv83HlkTgz25Q4df5MkwhXMnchO_v.vK6yyx5dkPu16xZ.tZV0r0vVAC3qSJ1a0Qvy7RjEY9uUusbp2A.pplJFGQ__P6L3LRAYOkIX_RnHiRhqY5nxWejJIobIXKynzgf3vDt1Fo3RAv5drJ7ZTAhJvrApbpD0oNGSFZN9Q0GvkVPFFR894JA9r8fRYMT2HjqOAUT295R9choMq7DIpJkaUsIsUKYaefKbO8tmicI09Y83hpA6CVdrtevbpOmlHp.vZgeI2VVL4cVBbEqcPoLlFWr.DkADbRpy3VbipnwW3rgHRioGFs4S5lspv_b13U3rmQL4vn384TD0rEnEMZ9Llg6dU04mklBscQtmpFg1zGGHB6e1BB8jUPuEMBuX7XQ7nTvMtFdnH3ZTk5fbdIyeJ4IQxC.HhGHT3dv8U37.nMyGQ8Qb8Cbe_OzgSs_v6nL6oMIMfxdLoPqPr09daOSsDQzqv0khOMZM_V7mQNSnRE9PP6OfIYD.TOhy0dqF7zGWIK3ce7.M3Nq3osJxgKpHli20lTrNepabfqfcIUxv8FxsuCZijGg5ks0IseJ4P9CBvULKOswZa1fn8iKrHOoPwGiz7eiFwWSpln9oSOwleEuiwEC4mxJnkbQnW3PBB_biRz42Vmg1MBo.b5aMPthuEyUt9ff6P29ELr3Fti3AlrDAEx7B5IdL39rEFzXMksZB34.jdpAVUN.m6ioQe04Hx1wII2pjf5vBOxqlcQ5FDK_by8twgB.Ofj_OFVFrBdU02tNd0nfUvaHXBT4r2ypblE1zyyEC.mltrZElUTcSlW2xucd3Be5Tkb0Bf2m9BXEdKqqNOKPaM20yeT2nk35LT9Y1SycqR9B0V0VBO5kuoSqqPolqe_taxnzwVHc1tEJdvhygTlsXtLTM8QgJZvAMOM5TMZIbENgyjAW7DExZKTWkG8eufAkGkP4lxnT0.tqdvqSPYn3RzcjkdMzcv9avZ3L2pVlOqzbiCetAzHP34JMospyOIxygbl9DyFX4mNEXDOhDwF4XuXMtN0ixbjAd80YQlPsFHLrfCQsqELvNs3f70zFehM2qNhgHJ5jvs49dJ7MRL7h1FYbIooVqwsWRv0_rNzTjpKyimK_nyqbVeXg3LG2Uqj2bm2uPMwbOVcvl6wRH0DCQWwNWJKIo.4GDkSl41SSIg2lauwdrVrfM3e_HeGRPS2r.jCxopoWjDeBQ4bitgwT3zByHfV3OFCeqnKR4FeQo.klOfhgAsmBRkYrdVWDfPS9QG2zh80ZqjlemlpjQn.CH62tPeJLKUWAIxAJJIBlfMKgllsH3vl4VUqwixsn0YqeGbYNSeIIDSJBFx.j0Hg0pfNSNOaTXr9CoSSML0q8x2H_.qGWRQ7MGD3khknyXd2CLFMsioOMx3UEYY7_2rCjHaZj79HpCvHSur4t_A0BGrBABrRSm0MF5hGestW7ybzKqa8ADx3gXKOJYacznCcYoafhwNKjMLskD9KeaONUql33JpX1mZKlbBdQGZfd_3IcyQ0L5RciUwfWhjSb5mNNUY5OeSzobHrNstusbo9RvipFXDQ5_IOV.yvBFhLLTO0.Po9klCqh5oF9J_fH2sxehvvZsV0.XqbFeQg8OxUTsWgdAN.CFx3WS1upVSSl9bxnZ38NfUlgSnpf9FoTe3X4Nx6976KwwseqNmCKDQzfTpykGnegvgEaqo7ytHNz5a99Fxie3rlrfL_wQ3ZfyylrIsxIf5nP1NF1hdpKVAc_YOGbG_HdKXonAgcm41cn6i72zgtJ7Y24Ia9lhOjjeVGavSoyKXwcPhb6ytLDuYC3Pl0QonIb0GGIS960OZCKsdKllKeCj1U.fRfqwFP8sw1q.Xc3DpR_KGE2FDQppY3IaokNDLnmd83b5Br608qOpu4VMGULowNLPVqtlCrEdfwL3tX8VV1viZyhK2hHffAKD00Z1IZsJFWg.LUujaruUN7nVKe2fyL5tRSp.gsk985Nbnacs8aWO9f.uyMXY3.g6Q6E7Qk.Hc4uEYkvQVKzNSadXB_L2tGFeeQNKjYQT9jjcpD2ugJJ8h",mdrd: "HYgnN.X9nSjgC7c4PGA5.t7ij6K_.NguD7E4Ab0vJWI-1739134704-1.2.1.1-QKCPvjdJlP0RfUWoSBKlTsJW5IHxdoX0N51MqyirB0eWNNam1OWtOZUmOwi5LIV70gATI9e5i7EEZa_5F1IvE96hafwsvroD_0IoGGJzKycN9B6mwRgKPU18DYldWPqxmce47RfLT28cFb4EOO6qjcmJxSpYt3Mo2SODzmsmATRkM9mwBYb5s9UjBpeE.DiYQNwaW_Dd9IBFlSUo5hWLuD_hj8CEVBzaU20uAZ4taqzJnb5FU6XG51LZ5zrP5IV_mbQerk.IlWf1urL7HbemJTXDzz8ySTIINrZqCyYd6eYNyRRSHD450KdK7wb1HnCVmbGzyvAv95fjTPDXaXnd3rjRRrQjw6SVtLF5zMLXFBjfM27Ng9AEIRTWZyxIbqcWn5pAuDDKpwLgNUr.IIVwI_.e5zXO2lKo1m5nmuTmxsurihVkKsJhvt_yPkLOZW7_YnkGUSWpV7mddW3Xi7SWYZHBu72b0tLhEY_Fk0u77P.PzybyK0sA6BzV9.h3WfO616nTPQxW7w5ZAS9YCmdzLiV6RrebRLHwIMdaUJoBesK84K2ujhdsECbGJs.i_8P2LwYfTJHQWYAFTts7AUYyAR_THv6Ig.l4uw5C3mKwcqLthDZERrGB1mPx8WFWcZcLifitjVC8TQ_HcxmxMoa8phKcLZzYElKCaDjduCq365jCtkrlF5QVKadrYBJ6fZsjd6Ft1elXNyGkztdUukbUoiyp0Sa9xYN2WMtIO6lnO6HbiWTP3ccpU1hRaQQoDgjaXpE74yvHhqAsKNLZchSwHmkdsFmvs3g9G.nYKMJVc4bCZfduJYAAt0.c2PQlSpG2ttlqqJAbm6WM7ZPMptB_cgwqMWw2cG3RRXuPdW0QmEXtEEG9XoQ3OhKPrXIuP5im.qd.uJeff41XaVqTrAke0BmJGAwbi1WM7zwAZ_voyGS965Qzgzrzj_i1qXkqPpb8oeARFe.elp3ykjD4WXyM4Hc5s3tZFIJD.FYLzLqdaekDRTQaKdM0EuygyeuMLX4ezznrlJ6o5enIDIl1HuBV0Tnf.KsxIGGwGcftS.QcipY48.eayRGf4woyz3ts9fnnC9lCjdtZXsLA4FHSVyZjO_TFQ0CyPHDB.B9CzDoPuJZMsi_tzpeDG1CQUjcFkt_OUXAILQ5R.O0Axr2cFKJk1CpL9uQV7zuWZDe0tHd2B8eAMnm_xywEWNSYaK0CaFCBGjKUDAWt5OcTe5aESNgmqVmzAKHiwlvWrqBcsxO9Eh0eWit.Lsj59bp39cHSYRbO.BjhqCC_ewhB3zrd05Zq07ZyNHE05V.vEuppuQP0zt8VDvFxrF8qY.7UMqZ3l63tM2gBbne2uTtYzPaB2acE1WXl_yBQoVFPQULtw3pCIdW2fHF_xvMnKAnCwtH2BAYDDhv_iBsR0puO.NHkpW03x9XSvgXVFedAUgRwAAKC74mX8UIUtqphumXvVEUSP_k1DTv9TZyEoDzOsgMetAT2.dFjKgBXyx4kB2L3CPo9Ti1Fq9wa95Sqg6Hg__dUB8VUknB4RO_x0LIlYGIShQd8Xp71.SGKX7qLxAJAKkMa3gcZ0t5QoWWkoMndOm2BJ78vCIBNoE_DhcRr5lNDZHBqxpu17kIaZ1WL.P65zFOWLfg64I2vwiwg7QDi8_x6sc5NSYuoJ8w2ADWKET4f0kLHveAotaWix2gsjrtQN65Ql.5Ie69A69QKgEb99dyiEzSOErQLX278QWBgzZIt5nj3NRTKZ7atKiftRyi0nBoN8eMaHdBZDg.WJ4vZI4mgFsLnjj1qmfe506iDlp_GjKZq5w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f6c6ff9f11d6af';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\/6248317095?__cf_chl_rt_tk=rHx4vqvoM40m2t1KFYWFgwDAiBeUUP4XooT608YudZw-1739134704-1.0.1.1-CMsSpw2qON.qR9t.keOCd1cQJiPsYLBXcXjWnwsNGdY" + 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