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-afftvd2be.mit-edu.top/post/0937564128

  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-afftvd2be.mit-edu.top",cType: 'managed',cRay: '90fccbc94a4ac590',cH: '1jSK6JduyouyUDFddl3pAs68vuHYdw5MtR3lowZnXpI-1739197815-1.2.1.1-GUiT9Frql9afkPiG3SMK3l5kqQTAX66fjuJyFWxobWkurmSVQ21SwYLCl2_U5QgS',cUPMDTk: "\/post\/0937564128?__cf_chl_tk=_OyTYr1Om0UiDz6D2w4Z0w8g0uLewByqUQvzrsvld0A-1739197815-1.0.1.1-4CRq32rXUHMOW0ygmC28aUMeC7j.wC8c6ZG_PaMV41I",cFPWv: 'g',cITimeS: '1739197815',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0937564128?__cf_chl_f_tk=_OyTYr1Om0UiDz6D2w4Z0w8g0uLewByqUQvzrsvld0A-1739197815-1.0.1.1-4CRq32rXUHMOW0ygmC28aUMeC7j.wC8c6ZG_PaMV41I",md: "9pidJS.NUoLu1jtXkHJAIigye4nh1vhF4Y1s1a9AD0I-1739197815-1.2.1.1-N.a4GuIBBhCRsrxsIOljnr_dECZ6HPR8dxw897sf.zi33dTbECVC11ZLYr9QE9TBhzCuSxnlG10H._o_hhbGwlMTnE2vyWRJJGJcdgkK.hWMz9HJ99Z1G4Qicu_hrr8qRIXE1pwD14uTPQ1dCLyhg4_F7inWnyTm6QvFhC9tRnulPmRQASzRqDypc3P2S1Yh5BiWoH1jN2ZBkqvRJZMXnAzEQi1R3wLupWaUWJ5tWEaU1wtyuPr5U_A3ShDppBcgNIscpurzSwoKUPBgTYlXLfaktVbv6N1BJ_7epBtpz1y.td0AesNDVRuMr9WKTwEfjZM.ltY0f6.SCMH.0YjMt2gXgu.PDV.EiXM30oVrqwePifxvzhI.a3g2K2OcyNKpbXMVmy3vpHCPbvEzzb0xJIndUkWgBg5taWi0h4oSvVYEnH_v1XtArdhnLpMlBkct3Nts9TAR5mvISDLX3m54qrkKlmf9hgGvpoPaXpjc9q0UEMnbMo1vF6fejX4rUym2DHB.cZaIHpPcCV0DIJgPYPNY6IFYA9rNVoWKc4tj0KrirbGX4Ydlf1FxvJtzvPVBzoRp50ANBcWGTHftuJcny4zkgkAzUGvjiExvSe1pQAlOukj4X7EoNNG6M8pCylqMiwxCv8ksdotYxj19zk6bH8EpjZoowl2zzw21fywYyDYefsjNj9gglslfuovFRLM2aN_Dyp7n.8XvMtgsWeHJ.adjWshRKRNoUwKYSyCliD863b.41VcudTH0okXWnRDFGrl3n3JWiNhm3oEUBsULLNTbRZ59.up.twXb7NyYHY_FioeuQC.SjT3BLUymRGDxIctiocLsdaUgt1tAaWnCPEkJvIpsD1xFvBYRSI.zV93yVSzjjp8DSkfb0KYqthV_pcEiG7Q3l_ENeBqL8kXEroV74ThMmTZiD3iig0ow7KNB60qWajuYCxPRjK1Kpx2IXegqFuD1.shNzIrGITfdmDGxkag8KvUXtG5PHlki7VeLEHwfO9nxZCn01emOhrdIY_egEj.GHIlDIX._XeUSFIX.7yFEQS.65RDHzxVRU8SyRcq9GR.tbB1xwV2luy6wM2f7ZhWl69rH88AtWQKk4JjQJ1hAXVoBEhWKCKFe22MmOzJLenIG.A.f1d.r9cKIjgcbzG1SwB6epe7Wb3iyUfKeUYt4A5FAL0oSHWoGtJsCvyoopaGdkEZEGaR9Wl3.8VTNo7pimFaROSoOe0vTNqNVnNxuGPdowPqsNVpp6oUpbDPKnXpM8W5bb66HWST2i8FRSqHElF3txDyGq87FNOjuXFHKjx0dO.lZGDbbTL0SQI4MwqC7P.zORDGP.wlGzmIG5JlwSSfhW7n6.A5mQbYxBfTDHv9Oz_VapRCS67_a2NM1IRiiYE.QRpCNG74Wyvexi5wNhpxu75LUfyq7fbyM__4PTfUDGmxVnOzJNJ._YFvStbrqLBOQH_QDzuVCE15c54N_GdsTh7ZWg02NS5uCw9jwKXpaVlDnIp7UbwM9.IlPPXbIn9rJg2MKZy2AoQxWqkUZeRT3FRky_aVtyBNTOO0wyinORjThf9ZNXzNHiFOu.mdqPD8tyYXSbSd_udsrajuRL16yHjaNnLpi1rptkovGFUSPmo2dj4C5z4uAvRMK0xvbIUQRbTJZyiJKw7cPuE5omdT3W5kZVzswNlaKlXXVIFGHP76.ap3C6A3TFC8QPqG3MLqIV.8aETLP4YY8iWH4Cu5icgEaInmnOYcgBfWtT11ir.nBzMD_XHt8xtPs8kiNFPLtSv8TbmwxKuLfagHMH7quCP78EcY1JRcU9Arr8Fs2tuj4tTphn5lOFDiZ.AOxvB4CrdIYq.4vwnsiukCdudy1JAVgrbrb7WIDqA6JL8gUq_7IadXssDaHt99ZAPLENbEBxyAg0NlcV3lTigQTZa3HqsDkNQG1pjkhoSkg7etPI54SVgPh343Ofk7nLRzopasSp..DR6b_Ic.KkkYpJPV2ieJpfxKqbZkjRYwcvejLqpzn1ufXjo7rnFOhQOq_bTf8EdiOZ.nt193oOK7KSkxVgNOlBYMQnQR4SobT6HjUAW4cDNAAvbnWIj5l7qEYF3h0TZz6k8LU0hxxddcMjFapoPQaz_lBLCPV2fUzAkRujaxLpMCQaXwr08veq3AEgfH7Msjkxanp56yftDhjZk882Uf_4D.bKbZ_7My3er5H1s8MUlq8NED7GBEunTmMKEEpms2PrcLz",mdrd: "BbDG8jASUgePL9YNuofL4y_kkTJo8o990BXY9j1_z3w-1739197815-1.2.1.1-UyjwuqFbf7gD4Ihnmu2jtQvZe1zSfy1gl6RCGzhrPlYXZGSW0O2tsc6CM9ihuDfMsCqsV7cMthudW0y7DLpwoGRB8m0Dtds5furcCmIhbMAL1etXNOMbIpTkAFpUZ.NSxgbsiZvmiHPqjXdiAd16I2jkagF5QAHPjEz4ekTiZveW97FQWw8_TLHo.z83i8eQdtC8fve9X_PHpvtcER89.j.IFs98oIKgC4poWKRdlcfSJKfKYibX0bXb6yyixKYRa75YsSkRaqLCbVgkFWCTPkrVbJhNXMEAHoxxmmk.B_xvKzUZU_Nmbwy.aXzjEsk2BIS_Fr6dNz_ZKzQiCL9Z5HPsk1YDUnoS1OXSvnihFgbPLs4XN9JXW28rjLHCkgR8YIeCR4BTGh6zEURLek7IMeFKO2g6YYtGJ1.P0cIZuwz2qQJrblgX0rQS7oySxF_9QT9WZXY.PKNjhTVeOW3P94wSDX_1j0B7is7A9tXdteFhPo2t9Hp9qkuZ_qlGlACpTdtm9C7cFbuLnFHqHZ3P1OEieW19Fj7_IUp5OOEi9zYTgtb2.LmE2bOoTSxCzd2FgYdJoCRPs0cS3tK8LyeCmZrYLDDH3Zm2ON_._PndYyIhMewWcyYqkvsxnRzpUL99eRGBlp6YXjK1hgCVUyjT0UdfSl5.UvGID2k9FsT6iPplUSXfVXdUmKQBprSV13fMFieqvQ8BMWYbGYJF4yfR3guNKCSUWqCMXGPFJ.P5X3zyEqdB82NhUjO_1U6nDE7piWCgMVFLjqnYh1ZbovGauDJil0nCw7ZfWGWawBHwC4TMGKUmfaiHh9cXtjUImcCSSd5NeroeEbRpB7N1K3YDZf6JSNxGVHjOiYseU1AOumgzzv.DwtHI0cYnSzDMAM0OWHwNnFE3.lTmrNcPFbvPJ6rb.vgWDk5FySlhO0RlX15IBj0HPLYqt9ip4iuNK02I4p.T8k03cHxcdDtDH0GgFEwC_t.LfLn121cEhqI2y6pap6JlXLpDEoXjYz8jZpWwXVgRR5hWbkqeml8W7l7r6wIWKrBwBt4DNguVpWdKDdZdgrrSl2.QVUrYYnM9C4_yoSnqDCxkr.V0HYiUsD_Uuw1UAkGXrBNxM1LlUmDEQzSkReJ67S7uibVtPRSn.jVtHJfoNrpzpTqJLcRs4fSoUzN_HzNd_m_4KvDtAqZhX9XP._8Xsyvf1SYQcDrW3etBgVeosxABqjbxhcDsV4uEGbzirZKqQhneVsdtytLIEU6TytMcsFv_Tda6fbMWX69oDPulfU.3AG6SiTwgLCL0WQLAFVxMPqgHkaymnKRXalPqVuYeZSzu_GZhvAswScTtNMlrYRFwfbxNC3o6RZu._9bWHaDYKGfsFZt3anYBGIEGEWBNmqe3hrMQG7_AFTQ3Bh16SURXr0QFANAvwGuRYInp921g_kaFjU9XHnNa3t4lQLrhYwvcYNd0ddCPxGwaVl0kQXE_3ZFf0WCLhYsfgcNPUwuWsTGu2A62Pqe3PdKTCnOUkeiXMUwGOR469isom2wFkhpzJCYRAa_EoR7bsZnZPDrQgS.v3IEDRlJ9UhABj8j9CU6mrr15gNSDZqhEZBsLzSZ5x.K_YzGQodVYAt4FQhnw1jVcvTKEVyBb3lWcROrTaNOodOKk5K3U3mzUfMkhrZ8rOSDIp94b3veKpxMPlBzlPygEscAc3SHgD5YCAtE4u0sMS7mM7BRdxllLdVVOdngC6dkHUIerBqDBDwpNPH.4Jyc.iouIkqtUF_7nUwUKtHEz8CnhGkcybNhcSkuA7sysz7p.LIwaTdsZdw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fccbc94a4ac590';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\/0937564128?__cf_chl_rt_tk=_OyTYr1Om0UiDz6D2w4Z0w8g0uLewByqUQvzrsvld0A-1739197815-1.0.1.1-4CRq32rXUHMOW0ygmC28aUMeC7j.wC8c6ZG_PaMV41I" + 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