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-703001935311.mit-edu.top/post/9785421036

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-703001935311.mit-edu.top",cType: 'managed',cRay: '91fcd4da8f397611',cH: 'HcVJlY8pAyoFcVja87oJJlLPgqo7aQ10QTLitHcPQDk-1741882541-1.2.1.1-9Ln5az4baWvKjfvQGX9ug42fvr1D4jX9OfZIKKGoxRZ4TP3n.NtkgublWlZjdbDb',cUPMDTk: "\/post\/9785421036?__cf_chl_tk=HkPV5Fb7TUSIfue1.QwoWuGlfkRA.dKmNSt6jyHZ9LM-1741882541-1.0.1.1-sIAWvrPwry.JztEUKlQ3sQRrZOPNwgjxtxYS_tXaHf0",cFPWv: 'g',cITimeS: '1741882541',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9785421036?__cf_chl_f_tk=HkPV5Fb7TUSIfue1.QwoWuGlfkRA.dKmNSt6jyHZ9LM-1741882541-1.0.1.1-sIAWvrPwry.JztEUKlQ3sQRrZOPNwgjxtxYS_tXaHf0",md: "WfckBEjFGgmOuL4yd3aTAoDFCrJb.d1INZVP5B.gD9E-1741882541-1.2.1.1-QPggx0WyCFYHhGtLdSE6jHZ1sFxaFB4hPKLMJVlSZ7Y1sjHy9OVFDJBJ2lh2feGx82CP8YuDczctFD3m30YACzpQl4uGCfZIv7O9nymBaEO7C._PrdWpusYAkJ4Y7A8vmYhLE96N7rA8IV2lPbfx3OcfmDotzzOp25s19eOgJLvvau_XUDpb7tLLCJPU2M_f6xlc.shEYFVG8UV3c13K3VdxUwJ_ci53xktesbIiksQ_3IWQdj_zptnx_QYIyr0WYSKj9F2.GpH6ZHDvDOWUFPj0UQXU.FgPNsRjEFdkbllZpFPzDSkR3tAzzcsaNmpHR.vH6r_6LxEb8HOlXHSIm1mPhrQ9Owv4_XgAhpb9ik14yIF0cf5WMyxR8tWQ8ieAzK3dF99okw9l8kKm3xYH2xpyJCuOnQU_CXDY1QbDHQjm2QElQDlk4pLUQCPmdm47jlEPoGtyaIwcsspqH3IZNi3Nd47KFHmlXBUohTvzxiWokGdQ2z8YgIgTtHTMEqJTbpVr4wUFP6w_fgRfbkVcVPHIVaBpHQnL0bdPfXKbk81DyvchbBRWgXbQ6eOmT4ht4saOlMFGjBoauJIYbf1RIS3HRykwopRhmSmeeZtjGVzBOBU4o2fguWJeQNjsBL6TqgMbf75igMdmGnGFqFNJI8H5A4gD6AzNybQUznCh4pAn63CSCbc7OBQvmnFuN5h0Ix7WzQOEWlV2mB_22v837eHyAzndyzR_wsICU4boUiO58IsN8wWmrOJVSnG8LiNSh8JVQUDFHI.Pf.tOgIPEe6UReBEA0tLBImNtcE9j8G8YSI6nltNzjWBjpIRkEYcF4xCVbK0Bgu74HcoDnwc9.gM6AY6GD1GJ7B0pvpmoezqlHlEdECYUfv5nv2ROZiYnv_kiUfIOKjLQccOA5xOtAtFyIpuh3LERbJ9aYjuTT1IBlY1US2gFjfDVOt.nn7yM",mdrd: "FIpr1GhVwGy_5C7bdsSVS1VYzmsQRHl92JogqZjBVLk-1741882541-1.2.1.1-CsJTYQ9dBuHqARg71Lu0QpSFNuv84zJRs16cSjrG4yY7.A0_QVZRaLcdxPQ.IGTfR_UzifsIi6m5m.cec3N.cNPYcs_L1gjBzXcnVPJUC6Y_oXlxfY4Nvqsle2n8_tA0nl2OIieCd.bvEkmDRW88jaZ09wOuRWB90YtTF7xkKhhX9mqMd7ZxRf9YSVZnf79XV_sNxOE.qp_xmgZ1mTMQO5yNtYm_XjoTgiXyoSF8_f1t9VaD19JreqP204H3ubS1_iGpSMPyFV6atKQXjoVBMdnbbjfmARfwroaglMI.iBot.vaOXl6B20b76h2Y6tUrcrSPa_blNo6K1ClzSVFD8MWfTunw8kCHlr2e.5_oznoC_CXQlBUk7wvMiraGuuKAgArIYF4se.tqS_L.tHJOKzULeZIssIahiO4PINAeWU2AlvQMEI5kX9qtLD_uR2hjwJo14Ovf3KYGDgDp7dBMFthc6B9fQYXwLg_XjcWgdgGhPtCKz8Y9_v435xr3u6EtOf64husgocUKTTj1654Dd2KLXyfezmJCAbW61NgUFjqLqH76CYxO8ienB4Ry71pqjTwoZOVIFxh9h2tRBtUyxQaU1EbbKbQo6wKzGklHIjPmOzZCqEmMuo_geBLZnxeldJf7S.7tEyEC0IM9GcLGKsJOH9E44SLTZ2PXcfthmym1tmvbtuD5N0LEzl10.KTZEMebDTT8XBNO3dV_lrZGBqG30SYcIO6L2W_Enaabh8W0BiFutwk6wkvk6wBPw8cCnZgVFUXugdJhlhrEABR4kwtNOE4LZ6IzM.N8QHb4ogaeVrrO3599jhPEzUTvQLIfDjQtU9k7BACd03BGccQkgWnqp5EA94J.3k9sSkrpS3p4havvnJKLC.QvceGQihIq4YmQ23vRvFpTLEBsDnJN68cccGccloHysJ_7xpC71CFu8sTt8qtXTgwV4eHUSeCvoio7Rrccb6.zBiJ4XLWE3lD6LObhvenKDLNeg6MrqF3xNqe1MeEhJqfVmOczBpfdbnp6lTOLCQ6.Yh_p3QF3MHHlhXVoaDKDlVJ9VD72DZmgAyqYHeIpRfjJ8tRYgn6Hq1Ko4APQX.YyXmCQGBe5pD_CfOMr.4DiviaD4sObRJp3kdXEgPyN8ssLNvy3Sa0HWwiNDa3tq_WUvuHSY8_gWo7zoO1nY1C4_vv48PWo.GSSH6zX8fc57JnIyOliv77cYT4brzVWr_IOoztbi0H5ubpHPRmjDAnhhw6xBPbp.pGfs0zLwawu9YCpq_mqa9jXXoj_d2uhkbQWHYCHPNgGGA.GLAnt0moaVPAEssmrSJGR.6yPfP3TloP4R85E9Zobg5e9BpzN9uHuyn._oUwRFVWo3H7_CeeVhmOo9LFHj.ykUP_.u5OMJqDwNDSAwUIpeSsrhCTFIzNJxvelA4oEGSq6EeZQDoO_Vr2LYnZP1AVLE3CzOZfocG8vb73OB.VCYoD2y_ohHbpl5FWX7MahU2vZ1PfGU3F6T9GogP2cru30GJMsoxABkAv3Y_dxNeiIA7iC8gSgQuShd.SjzAawy8V7PSx15SHRMV7aTHmkOYMTvorsDQXjBIPZPnPCBFs4b6jCMakm9OIm5qUPj1jMP.zx9zVsecGB7vzsLrya9I3sjwW4ttfIgqXVnt8J8C2uAq9i90IskIXMhDI6FaLU3RgQ4wIIA.ps2gI75UUHoW2iwvT56cS_uud7m5yytbYn.sNGKe.jA4CCOc.qKCrO_DCrtTphfTO5mS88iGNzLevSSY43wMJJQqjsmA9XC1aj.NYfQD0DOmrcSpaLxNd.l8x6_SnVrGKhO0fdMrSIo8Q"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=91fcd4da8f397611';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\/9785421036?__cf_chl_rt_tk=HkPV5Fb7TUSIfue1.QwoWuGlfkRA.dKmNSt6jyHZ9LM-1741882541-1.0.1.1-sIAWvrPwry.JztEUKlQ3sQRrZOPNwgjxtxYS_tXaHf0" + 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