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-aff5j5xx8.mit-edu.top/post/9286045317

  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-aff5j5xx8.mit-edu.top",cType: 'managed',cRay: '90f35a8f6c792087',cH: '0WHKkwwms48_5cm2gmxSPNfA0_llkce2fzbsTkVKMjo-1739098805-1.2.1.1-2tmdUdUOeSEoBx7OuXY8CskXd95NfDdy6LHJw4b1zbD5p5j1dW.QYfJBhyATeo33',cUPMDTk: "\/post\/9286045317?__cf_chl_tk=zF.eSBK9FAtNa2_YvwVfWHx6cIf_Y0jtZ9d1V5hBjlk-1739098805-1.0.1.1-gZOUTU4CvI4NSvnRXvmLfe9lqvj1H5er.qTRu4f.U9g",cFPWv: 'g',cITimeS: '1739098805',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9286045317?__cf_chl_f_tk=zF.eSBK9FAtNa2_YvwVfWHx6cIf_Y0jtZ9d1V5hBjlk-1739098805-1.0.1.1-gZOUTU4CvI4NSvnRXvmLfe9lqvj1H5er.qTRu4f.U9g",md: "q6kAA.VHBt2t0HK095u4Hz_3WGZm3Wf5Ykhaadpf0n4-1739098805-1.2.1.1-mI1YqzRGyuBgmMZW6uWfzHxwZAxNNVnR.sPT1Nk8rkN11Vb9iQbHrYHGC3IJGfzE3UMeqK3zHzW6k9kNUlK2MhsksqWOhUx7tLpkd8G6HIvk.x.vnd.b1WLgb5ZC6HD4MwUz35psXmw7kjQrqMb7qnhlls2IfDmX6bOfjZNYzjb7Lc3xif02HkVuDTAiKak.1yeNe0n3hmes2RugJ7BDLwcFS9r4ZhbFeO1fDuikfqMOivQDWYuZyhlmFXG5OKr2AkPUrLmW1In0F.stHnkoR8VWsvSGaWeMm5xgpjTS.iouuflxYxDb.MqeTQMSGxpI3HXSCHtiLvYJM7xcqeP8IqWXnEXY9KObQxBfwj3t0VIZFjvnucsdGaJfxb0mGkJZAVaAAhYAtZh0PJnLmk6DnHximL0wr6RnT9icXPlzqjts2ZY3H.YmPYOcK9Q5hV8rQCRGMGIU8pcZihx34AW1dL7gjOGtYbqi_cs1bHXpjHzNfTRn_BldKar.tsM4MxJlvnMWgA9lt1JGV.3mM.w7e3zIOP4fUNu3DZJBEehRK8STxBDM8CuZGm9oUWFchukRwOQx7wEtmX6RCd2qKIpciIfnpu680DnA8dQvMvap6__iYXgXFS8cjPdgirW2LLi0YubORxrZ6I6xJznp6n7NbUS8l7osR4KXA6E1XKyL0LQBhqKc3mI.Jyfm51BN3oswgMlCQ4agw6oTOfGotfzfSnMVYfAzamJEq4KxOxspeac1upAE2JnM7Mn8o1SO5lnlva5brAQjHoXo9cY30eFztWHIv6tZSyGo4Oe_p2jNOeezlqqIutkZ4fvKwSuPRF1D8ATEW2WqgoJbxYS1s41BRt.jsTHukMt2UNXFu0h5DqwWLlrak3qF0w1HjMzl1cTLsgflZptRIbHqOjkkFvShWuiWgNUYt1kGI6rODARQj1Il8Fk1A9KdWwXbpcwKBpzSd8GDEyE_gq.uKvyQHP51HMukOXGhkH.Z0_zDYsotGoOtXhXMpHVC0Uh7ormcuEFLbry9BduRDpvV58tBOxQhdvxkJB.x3AJpUvfO5W0IK5PNfCpnUlnIjm7KQorXVgnh5ZSlgWTJcRjYPGXEuFsWTO_YwgVRFHXcP8tAyQu0GIVOfbrVWbq01Uf3ZF3FWqI7Jr1KEXV7Oel1QTZuiBWlM_qd7A4vWb3s1XI4Z_o7dezoHu0iruCNgSJYPEAd6CDSiqv.thWp5O8ZylFPTp_YWsLlVORlldeG429YtTr_YQm8rq.UkVEhtdZ.HdBcDAZzlxyb0q4l5rrDbEctn_YLT8in040T0mIFN6CmeI3gBRZb69Gh_RIx.bVxzmq5M0Dy.TFNLuUKv0aSU9hN95Oce9kzpnikgIlsaTLDnv_MrJzSq5ivWbipHai5tz9ZHPThYFvTwiTQQ9qZAPpZsoC.4UogKooXO_CIaLmsBbK7gaWnUAqgAIVa.ClbBJyB.574GpCZW38NjyioOrey3UkPufehjttQxPwkmEsb0DRwbOmpWD6hslxDhgzwceaqvcB_y4NDG3SWyZ6Lx0qocDsOkEwarcbmxDxsy07RMW5IxFjlLV3rWF30K5ZlJT_oteHFmLblX78IkzvX2xAqP.r5PDutrnG_uDYjYGhP55CjOAk2bRWBxDHCFEhqI0iYzQPeamBHUJBo5v5fmGpej8jjXMPXV79ThvyBJbZz9aksiyji8Z808P5dj6OWd7eHWwZ8TcD23MW0Jsbkzhr0y5PK5yxx_LoCnZl4bTYGQ0HlOfVc.k_2nvaO5.UmgIhvmvZqIJGX1tAKUx3nwd6oSM8CuwLBP1GxiEMz1W1UgyVfTWKkQUI_MQcysYPd9V7OJBRZ5tP.nU9gVOYkfumsVx_dL9_OBlDh.X1pEXSv7e8IEpzzylZUlm2ezeo06xqwQ640k1Lgq52ujmE4aBB1p128mkPv0HxdxqEL3YfYXWyfJKI1t9ERObud5ylUkWklP.gLc3bOEUffizI_B1w8I6VuVu7uQVlPRa7pAlvY97O98lJteJsRREF2rLhFe35BYCwCWjGj4MAtSOwvZVGxjadlQK_z9qNg7mA8vDXFMZMJ3QaXKB2mr3_wNj7htCgDCoroIFegg6Xxw0CTBPtrVaBuBOKzpcc9L6Djm3Ok9fhUEQAH6xATTHisgsgIC45KN.Do7Szv3ZKfv2P6BtsD0ASY.7MQJ6iIAnS.98S6ZjrCBRQbBaOKjBUucJSTDJvJInjw",mdrd: "DB0DXCgwj.itDopOld2cxC_i7I7hDV4yRjwcfzrNFRs-1739098805-1.2.1.1-lLz.dm5zR9mSzbyLLV4k.a5Q5q0MXwXyAUWvDdyetfuGUHVHtlsXbxzj3TTXAjv97ig.OruGUOM6OOgdLHExVytcJz2kOqVPJUPWrnqcIXr2MjnZkvkjbmQ94lzca8d.nnREGe.PIoi3.ucm6WNaafPUA16wePudAz7jQvkJDpwPf7oaW6FZ3cts4LTHndk9DmJ50Z9_SKXifMix6p04mfBcxOBA.CyKSzV.IdG2OKfxSh636Oh7gJoqor7rctuazSTN.kENIqLjS8q1WirL73iPg2dKtjqtN7UdMIAxNZ7V2M0xN1rysWN48TSPeI3v87w2Np2992cc.PK4bGTAP_cb9RerNd8brJSIqd1BqOi4xs.bvJwQT4Iz0tNxqR71P9ZTIZ4BIb_B5VBdj.VGnJuoQSSWvvH2POyGpdeiQXpoV1U4yEEU46TfeASMaAcDmPA_4cnbLij.ngFhbbJbCB7Ny8FAWDZGF9P7PM_e8_qAkWFA4PBNK55QFjCICygKMHQeXj8q3Szc6oQ6aS18mnbyoMVFLHJ9WA2uaAG0p2kNrDFTvVqeHlW.veAtgDNYhmtUfTBTViz3imSuGQRWVCfzZymGmLTc3cnU5in1WzlzBwsvx0rEhMgIyXeiH6ZmAPVPdWBkuGyRXnInv2_J7ND.jjC10.BFfxdpIy0wfCvbiMoiNUfEmnbdD0DNqI9H.ejvKuqD0A.N7blu8MW4OWrUK5q4CD7s2w_oQZ9_4jUzQxKl28klKGTWHqfz4a4bLWr1Cit12hySJxUFsP4urCdJYVGg774WgD7.xZS0RfDiDpqe.SEgaN81Kyxgkj8J9TJD077VfH5Qt8wAmqbZ.9_mKfj78svA5339.vYogeXwhE58hMdYKCO0Vs6JZs.IZcIvzqkeD5iH9hGoRnfYqKSpRG4po4Ml4D3rQeUqF6CXOwYjRkfRZLoo9TBNwvgQllpy47qoZmZPpe.hCwcwi9c0_ej4VyEakY9K.r2wV2.Gz4TAtCJ51pJVzq1RHdWOp4F6hL4b5EjRSuESYJm4eqyGLKNZMTOKYLJ6strAFBoAa6oITGOwJoOaEksWhY.R4U9a4RQPXwEOPNShliBXw47NM1jVfqdKx0oFPNHfeL.jioviTNL8Qr4HnjT0R0.yGOyh2xU2Syo3TUCp46nMyqCS.TghwZa65rKRfNw4zFZUzYaQvBbvzoS89tIM8KhepGCoUH1bqdKG_RxFH3QcLpKwNmR547KEXMxqeswIAln7Jz76T4nLIfKNwavTxOFe6HbwYr192ZIiFn4lZk6eL1Ioy3Un1UJT7LfmaQZeXfWiJcolByny50adYaMxAfcUfSC6Vrm3qHdBajUl__0VMhWiEpgyrKz4JWYif20ISChiOSeW_8_n5XX1ANzRHHawNQJr6.1TSeEA4I4mn2DRYn7hPVx7U7WrmYwMfUxcsZLuP6AFR7JEBIG1d_cTM_BX11GeqGF1.BTSVG51wSC9LNzx5nQSLnB.oxUGQFLGRpQ_MD8py2ZnuMnpL2Vh8PXJ_le17T4IFVQ9N6PJ1Xe_sK9.XqHQVyErwzWPAaZmfnEclMPTuuEJr3hcsIyMAwTBIL2Lhcz01oKbElOgSDyXFX5a0NPlqX5TteyJItNMc4KbuMhwJZhTgCbdlPtOlt9yiW7bmVAF47Ub6iYWidjOf9yJL9WD6JrzZenKatp7kZdGql7cPw4Q4eGU_hLJIjl.cp781GVHKWMC1B2WTQNShYFKptx65LVLA1DZ8PYkPcgIHGUYSjG4DE14tmnDaBnWCJHfC60Re68zjxM14YX65d0df2Rh701hi0_f1OSZjjs"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f35a8f6c792087';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\/9286045317?__cf_chl_rt_tk=zF.eSBK9FAtNa2_YvwVfWHx6cIf_Y0jtZ9d1V5hBjlk-1739098805-1.0.1.1-gZOUTU4CvI4NSvnRXvmLfe9lqvj1H5er.qTRu4f.U9g" + 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