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-aff38feox.mit-edu.top/post/2539614087

  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-aff38feox.mit-edu.top",cType: 'managed',cRay: '90f8b5c90847d6f7',cH: '.N_OSMgyWFtcfmRMqh8ZbB06JF_14Flao_Fi_7ETGl8-1739154971-1.2.1.1-vIAsYpuVjpt4BjJMeduk8Ahndj963jwoovw3ie_TPqzdDHsQFtR2L8q_wS8N.GLh',cUPMDTk: "\/post\/2539614087?__cf_chl_tk=W.HdvWsav5sbbu2UhwFU9UoEzbvVQi2d5YhSTtBkC3A-1739154971-1.0.1.1-8o.ix.EVsErYQhXuvm3hrNIGJtT7G73jQDVGu4VThPA",cFPWv: 'g',cITimeS: '1739154971',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2539614087?__cf_chl_f_tk=W.HdvWsav5sbbu2UhwFU9UoEzbvVQi2d5YhSTtBkC3A-1739154971-1.0.1.1-8o.ix.EVsErYQhXuvm3hrNIGJtT7G73jQDVGu4VThPA",md: "FyOymakUOrONe0kmMdcKHAW2LcXAKOGO01wM510ArWI-1739154971-1.2.1.1-tmh7M0_mF6SWHsFvkNq6RMT3jcwQXC1xLCoAQtVDp0_TZROAnD.gZWrgc81k.9xjYJGAaAAP4ywVYNia3wi9JfXPOVJTAEIcJBSYmHXnBjGICZayIIFkhnEytt1.pAXOaosJDdDOUWtBhQz1glFD9RMNWXnNfem2KtlZD_o2rlJTxaavmf7UYXEpRC6kjVK8q1tNet1842CIkmkv0OTxoqpPbV0G8wYi240A.9MekV.2XebhDEH4BbzkNULvQ_tBpgTNpTgWM8cla03JXJN2_YYDzzhM0QPn_wSBl05ikoTBI6zCntK.yxL6OI.qY2bhmZjZpMJuhdbbeIDFPueZ_7gRrxIQMi1WfXnFDmtbTpnVY2LbbTm5Ccy1wGKjyxWqi1AbgKfFtDWTSu_QRR7dWpQXp1gcuDvJ0HTG.6hNYp3ef15yBm51uql5Y9lk_Ys8Jp7GsB71CNDuFtuqz8mi8vRbLqIGo8R_ptKWkPZrnpy3pa1p988YkB57etl7c6VnWB9Y4Qikva7HKThuL_eR_2din4JDB_6w7AScUxCAZOsE6mvnUgTvgIT5DnGs1fI90O72NcGPKwujdEY_4Jp97MjW05FpCbfCv_1XTEFbMP2Z0yqObtvc1J.FVmX2g9XhUCLnm3sM9of0_w6n15dSxcRMHa.ZmbQyoQmI2.yjyUG.a0tMhg.Hc.bkHaik4zloqRZ91yz0QJcJwA.igz4A7S0Zw9Aow6VnpF_QFPkiB50CSaosJFtCV4NSXbqCuY2h0YPGogSekF_qm77zw5iytFzxSJIvBmKhebROP1gzj7zAKUXBQvNgX9FN6PxU1WiiJcVVB7MVFgtXOmkihS09VVva3H7XKuoUMkBB2qMDzX_rBOhDL7b7rYxS3hp1vDCLavWmSOSQfCJViiIXKqGB43DyxQ2Xu.je.lzhW0XRLfASq_xdN9sEyzhUEdODX_PkxEKloQ1gWp8n9.PzshYynkcy5haluLj9t9TmEWRfsXaJb4oS9iG4Br7D_YUC7uvWSiudWRyc9sxNt4n1Rga.ZkLfTxxsxdTH6Yo5Ld_jvKdPJjyneViDC6s6h4yD9fjbhYiZKqIidbxFCUxslbteUvd3HmH7r1WzbPM_GANUZ2nZLUWQca_b4RcJfSIUdydjfrmEGeyU7WSBqXDtqIDLJnS_bHXDLrS8nSbuInr8oXDmiacEECe5kQ1BJLL4IaLt3f3.6wrr5rgGT.A6W4doXsTVVnll04WscWoewEWSTis.iJXvgE_0yKBdHXIwR.zgbl9lLf.cwrtXVRM1AtE6J0yZJThYdZzflpPSGJoGRIoUZWsqiePIpgTfN9wqyJKAeeiZsKRyKWkZbOVCahpOwHuupfre_knmnSWtqzN6YxRvkzZOnJ1_D01t8H8qdwZSBcH4OycGmhh0OqdxSimm9M6G4pKyBCwfLJ.WTL2VUTI4Wk2W_bNbJY_fSPfD9FVDhZwlbbqJEV7aaFJ0DZxP7piLNsv1NtMGeA11eLjwk9q8T9fSO0vj.yMBQOO1CiIX211yKRPjZOrZGnRS8Jg8xz.z2sWBygryM5tDeaqO4XNNWMDgqBZo7Opzm1RyMmvswdCxV3wZbHvuEfPZ.QhjQMrUL59mFXQVeH3oXLmF9LuR9tRVvsYyCcrQJ_i3shRF8f._sKUtuOGkir3wFrMCPlMfrqT2e.lytCfqhJ5OKQqombM1xvFIGEQJXI3QwSIN48azd.KMWKTIC8UcRjP.iTrA70pa.FJxyZWgC_Lyr79u4KYLVgzpM2CYM1U8YdGJbEa22kYWZSkPS.rdanFLGs_Eb9JZLG_nZud95IqMvyC3om_7JX1VL6zCPbTZYOaU7TfiN3D9WjRUr83APIJCYwMLpGVqh49xbuIRIJit9PbEVKEbXe9BvbAvB1pkwu.8hXMqZewM2drLajkU0GpAvDup1MVPpCC3.J5kidgv7.t2CucpaoBgxvs8HJ1pvwflf0JKYHTWoLfYsalALWYA1hyB.1PEc04t_7qM9Td1uPP47yxYs6fWv0kPFOeiT3dvFTsarhnGO346prc1QWY3moYBQSZPcousSm7gQF9z2iWkq21QOYzFD.QUOxeiQ0fQ0pyr.iWL69KWx1TocQtM4NFxr3IZbx1HGvnEff_hpFwratZOJrPMBeKin5.hSAYTBOPheg8ri__r8ZUpj9Ss74pY6gVPCrmjMxVqqW0bXsXY4YXOQmXxz2aabutQyS9J",mdrd: "Zprj_14x0vGg3anN_NmfbQQs0ERCCw68phf.V9Keqk4-1739154971-1.2.1.1-tTXnh1rdDFGNlg9ppDSDbncv.26siVGjfyM1gezUecVgvkUWOtbUxjC87rbHBN9V3iOeaWxfdwG_9wrbNomCufAxYBA1RIoFLg7uImAtdxJBUTRnqgYX1xpVH07Nziz4elXp60dvcnO4mxYCSYaLRW6tPfiUuDH6TKM1CTqmZ2wQ__qKCFuE1Ln47zjQvGGJH7XVIXpb_R64qW0RmWX5ildfVD9jJWFev2R4tBTiuzLVO0Y905O3zQLSv8u2aovvoIaY5e3EDLR93fIJhdZ4eHGsWfhIRkdxUyqKI.QnBM94Ikc8A.4XMwuKzpwrQhzIB4jQF6p4ntvDoLlCHKbOp_3T1noBnUhE2cs4cX51NafEX9QmHeL.lWUmLvXfbe.ccN28HzHtUrLup6zaK6VKWMXgDqA09hlRJSbtqHVDwbIR.4_INRStX1rvxqANfSSquzAY0vRd7OqyxoliUE4Oo6xhDhTmj_DMwNIOgB.Lc_Yl7C.RxSyqFCQ5iuJTy8kqh7yj9pz8nLS11RxzajY_9DGgvt8wmC.FjvrKJixWthCWWC49HvIO4DujnSYZhtMs.w0LfxIesTKL0DR3T1EEyJswgsHmy.jZ.i1xUHmf0WD43nUGe3E3FzCHp0sDIj7NObJ_6oEEKgpbqB6p7PXErDJyZf.kdAOSxz6rrJKGOhCDo643twLibjqn.S6h1X1rsw18_uKMUkmiHUXomYZHKvDgR09qy3FDDWKdIE3.JL.pUJx7urGF8WdFaSqhJlG1tHDqZN0x1LzSGpwoJ9O5HgIgrWuo71UPf6_biuvkoarTA103ppyNoRvadtiIyLpy0HhJTHYIZboWQ1LyGD0dU7zAat7VuNqAUkFPtLljsQoxVvAj48ECijNNrWgU3L7Do8hoNdCjazREKdH2EJeA5BIQEhrfbPNqUmgytUNeHz_lxdc8abmDg38IzmVcVjl8A5gY1dzoz4wWplIadZmnjm6zdm8oX9h0zhS8YaTPXFyO0WQ6_ATCferq31si8fYpDoDW0YSsHjCkDAXOEYhOVQwKDZtKk36d.c0Dy4kYq24OU_uzsiOauIKK2QF65WxVX9HwrLfZPJWdgd1m3Q_yy4a9BenMXP0vDBl49E0LlYjhRbusHr4aAtWMWj3nJiSzYx7mxgDfca2i_7BUj.UecSfHWJOkIg0ns.8SF.kYaro.Iw3vvn6WZclzvqA6pC_3U7fqdBamxaYR4HOfON.QSQkOlix.l9S.BG.TJgwEVdp79QUnqFsvoDxMbE_O8ryHhpzP5FIKu3l71OAY5C8Bpsuirz4JlWg_1LWcNKoHzX2Hx0pIencK5_jROTd.GhMd9f8Oe.3JchbV0pRtYsa051rNw27o.28ebk8lNJYJMhLOHLfhQy41LtiYo6fP9sVSR11CpmRJ70iB.B4ErUCN9bPxsWL1e9.VfPIprFbbULkymeTW0uKz3O8LoCKaTpeOuxK6pDVY3hmuXuEFNx3QKGKG8v6fxx5aBVXl8F_MQCq7mVouUhoWcLn.QzzfQa9qPJWJiDpWLOdsJkQ2t7b529Gnfk0phD7jvfSQD_o_ujieRXt9.glB6b3pTpGExK1yMBWLX99SqCdx3I0G_vYRk6G7jtZwQ8uqcr5RnRZlpdfdxEwmKDOM43l5asM114u1bLFddM68BTp2jJTxGzjuawK3V9QOGir2ez22rLc8ctUp5bgNvgDUbFCdLNCRaVFxM.L7cxX44w6vQmM.Ffd.7CXuR9ObfbaSvlZSKBfbLmhZnMVZiqLzHGgKJrK_40esX6er2GZSJMpcgh9c0Ya7ZRXDJgmq1fqtdXMwSHe0E6U"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f8b5c90847d6f7';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\/2539614087?__cf_chl_rt_tk=W.HdvWsav5sbbu2UhwFU9UoEzbvVQi2d5YhSTtBkC3A-1739154971-1.0.1.1-8o.ix.EVsErYQhXuvm3hrNIGJtT7G73jQDVGu4VThPA" + 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