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-583826583145.mit-edu.top/post/1490378562

  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-583826583145.mit-edu.top",cType: 'managed',cRay: '90f375d7ea7fc557',cH: 'PElOMZzC81.wBVuB5M98mXybu.tfzy43gWGt.IaOErE-1739099923-1.2.1.1-dVExAV_tL6jaCIRxvi6xG1jQKg17xGVyW.Z6G76t18TVGqEQwoChdM4KWRnnsbt2',cUPMDTk: "\/post\/1490378562?__cf_chl_tk=ITpR3_qhia_88lznGY6Azg7Dy9hdiJRNR9j.DcggxfA-1739099923-1.0.1.1-_8i9j4jtTSgsyd.sTMdZob5joflNNXmxgi2JcNzz1UY",cFPWv: 'g',cITimeS: '1739099923',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1490378562?__cf_chl_f_tk=ITpR3_qhia_88lznGY6Azg7Dy9hdiJRNR9j.DcggxfA-1739099923-1.0.1.1-_8i9j4jtTSgsyd.sTMdZob5joflNNXmxgi2JcNzz1UY",md: "n7VFP4JyWyDy7RvPBf3EoxMQJIZzOLQO.BJIwxHuqUs-1739099923-1.2.1.1-9r9oGWdJeQBJXwGVA1nG3vBv1vajBJqjr26F92gLsh12_1c.XN6hK_dloIpYBhG4wiaBNwaBm4QAgs2_b.i89.nmiVwkFkONASAKzTXXvyrFQbYo6yXsA_i.yHsAGw2JyfrVBfr8K4vFkywcQ8C_GSmdDj8OHwQFlvhJJmUHkMGzF2pcsHW05.gmSzhJlIhPZdt0q.8Qm3.cEvQMju3cgdZfKCRaAbFiCEZNZcrwRZDo2.Ve6nrrmiP3wKOFFfijJTazzraqpM1fYbgrI02ESEqlTgc2k3V4agu7yTseVvNYd5CuH_mUkGm_x9.YULDJaINSTFC_FQUh_D08sF0Hsd6HvrIBwZVCiRTYBW.3s7_h1.dK4uxq0GAZ29KHz0JZtjb7ALLBbQ2YeRcFuowFMGNTYXPZtOZjtoVSLXuBaUDffY9aYckkVDBlRcO6CsUDC_8gwtza76n6RiRylzcHyM02hQfjdgrx.ZLymj8nsCP.jKZQEUAt0BmxepoC5g5MXwisrXihIg49qV6odUmx6yaAPxo8RdPfgAnhg0bD.0yTDXfqtj7Zt8RmzdYLtnflXXMnILlPFoYbdMtK.C9ozjH_EhSaVG.lULXDwLQ7toIxNcpBRBs6zjzbLsDxGjrLyuG_rvjX_WKs9GUHCqG4Jj6zeHDibUzW1GCxFf0IJHof.8dC9jDTySqLuoIFs8LtHSqXykw3t69VkrHlZD8rMrlPyQH21b47mB8pB39z6ohu347wm8nzzjIfihxCr0OAme52nR5gnT05RSfGysvMJcRroD4w5My228oRzB2FAhZXMnIW.l6NQaLH2tQl5hYYoNZe5sRBv_uOX2fTtjJYd4c5BDrJMTkaWqMlsci2jauFC.lOO.D8Cb.vcIyKRp.b2gr8_H7Tqt7v.u1b7a3EGhrJUye4Yaw.9WtSImplVlcyn4Vez.L_PlNO51JYoPtqWbFvFtCFBGslY6bjw6dVDof9u.EKFh7Caqp1u_tu1bBnkzgtvDbVRYJOWmQ4w3G2WYByX6VItnJui3Y0EIytvkmvGRyhnSWbFzgl9M6pag.sA4j8Wz2Cos4yhULMJHyCvP9fwVR31WlyuwOMLfTcT0oVlqv8GkFmba4oQT1X5sfohQoC5ojIVP0tTGpExp25nW9J8nYaXM5bmBQspHBj2KWmdvE0UML7vuYnsnrBbAxI_F23oBW1X98jaWhNdv3MusjRMjxGHNHqE_ZM5s8m7TQHNOlR7A_Hj4pTyYX3beRJnZXSr0hDhDuNvpSICPya1gE8azxXitABZmPLxMk2NR0DBTBX7GQvHUr8zFakWlt_tlvywEdMZJld9afQZMasz84MYghDIdtj1aEocg7Nfr0ad8y00HWvVk56q4lfZm8kW7Eae_JaHjlYk5gry_7ZK8mOMaKmdzpEvLrEiywkOrLVHynec0dnM1tEatQ.dQsVMpAh6Kk6o1O5HSIGAQvysg7EEZ2oeVjrVgMBb20wKN2uPQFmBruiOFYhA.Gk7S0okAP5eXfsoxi7SkFetoKbKBlA6tzJUYGKpSv00iEzmiSqS95g5gIMuSD9QuzsIch1FTsPBY0W4y60GQtovJfW12wQSW12w9cCzL_u1rNBeyEK6bulLkMa4bhoVUAxkwvsffxOShFrnZvyz3X92pB2f1xABfRy7irQhOvykvZxm_EwvEEnhJvR7xPS.h91y.xBNuvz6MwHKLLaIWvjl.1.OCbvfp8pjkbeImCqQcGrbOE08_Gg37RS_BKJuy.27JENL487Ih5yI7sifByD_Qy4Sbvb4TlV31mFCxUn7zp5erWmU0q5.Edp0SUaNy5Bm3uLVsNqfIG2ypTggfR3ggcyzY4ycekThY9HrRlmyjKnS3XTBzLdXbAsosA2jQX1ZF8KV32Mj5QhfVHAnxAEu_dhaLMbckpquTPExSCu0B_MTu7Rc15oiGt6Zd9nthedVCfdO8ruWY8.ExhfWC5FXfU7R9QrWBchRbve_ehQxd4LJaoLyDsP_zYS.ExHV7b6vUlc5S3XoZx3qOlWp_Pj.vu2sm__MrmZNbGFX_dQMeIod7G_mmwdxWjTZzd3r5xviy8PpV7RdU4nbxVL9R29.H9ZrAJJLyJMiMnn.e0jDWXJmZjIGbbXxx6hYkUrrF3eVQsKOrRCoW5yOj23ABz1luuhHFhq6_ygBxZNoIn_.TcfxGTUVf371mKrsJ0NPomxasM0jx.25IaKkpT1H4k6cdza",mdrd: "DNMTYkvtA69d_QGDwnjS7i0Fo89AG4gDkgROQu_oqqY-1739099923-1.2.1.1-WClA36fySJRDw8RxnXSMbSWeJsGFPZZVokMMKED23CWpuV7waNSBMfvmXAM1VcrlFaol3R1d67DV28WB3dM3ScbWt47Wp7218FIf8ikEOyWURGm1GTDudzEss1uMx.YsC5MRd7J9PUS3H.46xto_1AqcDGHKcCqm9_srR4WWpz6X6zXgAlwnQQmTYoQYqilXrWQxZaBjpe4xnIvyXn5D7l5utzTUuvQ9AfImFNvl42oaENlCR_uqyCM4IWyuYkglTWeWgvenPxlJYpzbmMgaazstwruUv3xcDlVpkyoOfE5R3Uis4iSBsVHhZFXpBOJhEKEM3Sr4zsQ.XM2ghCoYMcD.uLLiLrYgyUm.28fztl7UBYhs2IHAs4xpIFCc0CaDm7R0QbEcqzg7zVy_vNnbsL7SJ632a0qUURc2mfpMDEYuJJogcqwZu7SzLUGNsNnAE5AsrpFjiAJblAVe_4DSH_7vT0cLOTxGXjbpoluu9vdLbo6bqkvPWiKBL_fcm0qh6YXQ7ClSHC1RjP..v2Eo_69BJT_GX0SjOyO565JTfW7_hzkNu8jI5eRY.7.xXl8jdGQX2uUbyMh6pXu5eUVW2o2qzeaTELOfibY4ulZLFC8CzIC0r9Iz0BkiO3yGmAHNAurvrhcObos7io40Z0rjMDDevCu667X1TWzfv41Q8Ym5d4353VNRGf7e4LwFgvVhiianeZ_k.NsJoTPW4VhP15fnjBDK97qPGyAT3XbV5FeE4gBXEnuKnP2LAOneZdUc_kfybDfhgXVxt7LiBYZ4MEE4kLaXb9OfdpN2aJLxsA5kOUPdsZCif.jOAbne.1jLzWKXttCVqKq9oR.3w_wq4UucRYmdj2eZrTdLEyo5mW7mM_ewr.4bqs0rk_hMgXue3vKUha7SbrLyxegQS.Of0qkc8Xd9Mw0yreSZ1o4Qy_FhA6RZFwNmzCcj1HRQCTVnrG_j8N5j0_Z6S8pWPhPuHh2c5V2iRQyJrS3vpG1.CWTXb87Xk0HzVN8E2RecV2IFyZmeD9krmTuRs6XMZ3o89o.qoX5sX9VERgtmpEuPwe4gjcF.zpJ4M1PcBGkKGBN_j5QhbD.K.ESPEyp2n6aX.p9X_XYR_Xc7xFPH4A9ZJI99UOx1_RjvDlY0iejf87h036sd9lJ8lvib4l2dtpr.BwPoIVeGuGFqvbBcYXKq0Dd0QOOBXkijN7ihEu4DlCUGgz3WtJOc0TKihZjmtQin533vsfS.ODMz1S__sfz7yGudJVrzjtIpvC8ZR.m9pfA0cn3eEw51xtT2EO.HbnADEUXDfEEamAEhB9tncWuNMcRncEaHULznAQg.0WHV8HAC6izpPiXlVugYMoAf68qlhZCs0AOy9CpWpwJS374Gr7pIUxhUIn4EPYAg7EBGvhDb2C2XrL7O_JndA2uKDQhx.MDuwb6uNp5vKGA0y50lpKsgbOaOc22w3Wd1uMknZsUF5xL5o.ertMsnHFynvdcuteKp1nkLDyMozMs8dTklw7fW38dvr1ojJy7.tr7RVSgls_pe3Yp2aq3Yy8uTDLs5dC5pLmUMbT_Fv4wuuKj7S17Jd2m091lE7j278h1Kgvj5OJZdB_Zc.tStrLjqihXbHAUV0gbMOFbQGWWatRstVUFeJSp8i_kbeVgBFSv.Ao5luha0_C5KXJXle7ZvchzufyALiLEpwlKbthhv3MT5yS1IcZENxLD0Nwo1BCzckAQjNT1vN0gbT1.OLoCdRFRp.uzAUjyaV0Chf9PZPnJSdkER1mDI9.dE0Ew.FvpCX3L_91Z76ZYLHVV7UQmhh19MWnSrQXUmm0pJBW3.TRPV0To"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f375d7ea7fc557';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\/1490378562?__cf_chl_rt_tk=ITpR3_qhia_88lznGY6Azg7Dy9hdiJRNR9j.DcggxfA-1739099923-1.0.1.1-_8i9j4jtTSgsyd.sTMdZob5joflNNXmxgi2JcNzz1UY" + 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