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-affvnbjse.mit-edu.top/post/6395874120

  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-affvnbjse.mit-edu.top",cType: 'managed',cRay: '90f37ddfff9959b0',cH: 'ZPEmxy810JcOUNC8noVGbGO8xC1GUk0T9in4frc8VOM-1739100252-1.2.1.1-3jWfGuLrOOjF4a46jESsa8msstA7HEf2M2rU87mNP5DXwZ_ZWYfZvoVg6LT5EC.9',cUPMDTk: "\/post\/6395874120?__cf_chl_tk=XTkz0O15DQjxARDW8g7HX.nDAcPySoA07aHxsiU191w-1739100252-1.0.1.1-VGon7nUa7MHUyEeP7P8VJRnuBL0BwC9SFyiQ1Ej1_RU",cFPWv: 'g',cITimeS: '1739100252',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6395874120?__cf_chl_f_tk=XTkz0O15DQjxARDW8g7HX.nDAcPySoA07aHxsiU191w-1739100252-1.0.1.1-VGon7nUa7MHUyEeP7P8VJRnuBL0BwC9SFyiQ1Ej1_RU",md: "lcTZFNhOfFPAYlLdfZcMiK0Sc8Nx5AmguzQj.SjPsnY-1739100252-1.2.1.1-t_8SWrWdB6gdRZS54LyZDvvOquITa.drMYXboL73iXaBNYRUeY7dqOGXx12ySQEQB99JeYxVygp.AH5oq8f.I2NLGIcSO_ImWHq9JI2qADKdHdxUOzglK5O1Ve9K18rmx5wrDnAwP2Zp5_QvRA16o649A0pCAmbLAEp.1kTqzbjRd_p1Xd8W8jjs6zOjsxUwjfRQtMQ.ns28txNwhEGq85eg91KdNJ5m477QkvYeJua6TV5wIxjy8HSyj_96B7sK3VboGr4eRdBzQ1oa5nEh52FjbSFPzbGu2fDZpaNDMa_XnNh96I00PgNHV4oC0D1Xtp_dhwGAtCywAEcz_IyvoI_mTnIXsGo84gO_T1pcDQ2LteqBO6mmlENJyFwkpz4oaNctIn2TrnuHXAsLn38U2hwcA0Po8wHhJc8KUrRUwLtSr5xsImOY84ZK_xmlrJp93Ob1mjIt0CmREdxaO6BLndSiTjfRNIl3_wUm3bkhuMuPXrWJK2tioX1tERq3mX4_yVFJpn0BIIZbfQ.zWrEqehapdiT_A_qmb.unM0ILEiwznuQ2C6Lckk_h1w8yWPV6rdBPwoOv6UZM.kpyR3ObIksmFcJMI72YzoW4uhU2b.rKpXUZSLPnsbB9O3ZdtAtrPm3ujnDmSoVYK.G2aeoQVRptFoNolAQZgXgc_HttvZeDNpXVWt6ls.hADMPWDrp8dFwTfy._vzVWcXwyMJNaXY2MytNZQXTnAzt.dlgSvo.m9rt330khSeLVlswyuBNARrBRwQFUbQP_3swD0xjJEogxE1oe00viGnomJxVhIkn5ViPbttNs4SZY_47hkQTRMXcgEa8p7dxGeZZotSqeTM7YXBbdYfOXg7_elFOnp0i8K4AfWewJtxOR8ch2pwrf6aAMGaoQAGiL_iTvTll2yRF2LcRHkvdS2YAT4A26EP_QFvn2PPvZ9dpOw1ExkuxYCUXI_q3lmMxVGLJp2lhNJqeasBUOytpS4qb7RZ.YlcHMXl9ib8S2jdwrAbx9agcMNEsUfS_uKofo2NOjWSUUIDFqVWCYCrzRDQRozghwCF6xgtHQB6s2I66nNPW0op.s_F6uE3WSjRrRnbwGv2gpJ174Ry862GMqBi8DLcLKslY22vPjShr5meSeFPc8DkgfFy7Yzc26fmjEHyaBBij5IchAphnZkMxTh87Z9YNt_1fSqmOyApXK5lW8WbxW5gHpcMm8hJO86fNkCfn2Dv8FnAGFVeV9a6PYvOZgcxcI0JoeWv2hCe5XDoRcKJZSpRZX30m19SkGBNxhnNltOuZoz3.YnRqg3Llj9YywpHM53W7uC3eCK0kA2tediVNe8VhXuhm65D05Ckj7JIjh052zQR98zRjcOUC7Yt9VyO6asNZpFP6RtS5eqEClAaPLWkWTgDj2tEMl0hx0q0gThyw79j0lFKpP03ih6A9VBYOSJUuOdjFAfc7A8RIoJcS9fk1u6xE0sRpn.GWURb2XZEzjhtuHKbNlm8Rbd7afDkJJw6WfmZFoYJ2KOZgJNTWxSrYnpX7fTdnvJVAomq0m79XbjF9SI6L82sF4EUDCChlO28pZgj7xyRuJ3xlHLAJzvJ88hMxgbONbfCCjeUUcPa5LYdjbiMa71M5xBiPsfxF6E4Zg0yEwRxA5mo2moP4_v9vvnc1U4bE27GunzG8IE05km5xZ4C6POTCt.l821yF1LI8xY2E.wTFh2PC9blbMLBnRVHSs4bPRz6Y.oaBEmGKY.KiGyiDdrBn28Ms7PO26mE6qKtWoJWKVtBMGYYgEmu9WT3C3bM2ggphAJky9kOQt4mZC8gRJe4JXL0isB0ViDwXcP.E7IoJdJawPPwyLky5vKmio.CRy4EUfOqRFhgUNmsStVJTMq3TaGiX7hFK9R0G6mmAsQJy.EQhNdAn7c1Y9jCEOnVtSRo0uT_RlF3laJPpTRT7OYU0rFpQrVAXkxfchYgmzL.GSg.dcEnWhHtjpChLciE5t1dZ2c8KqOxShKnvLd5ffm6f2nVw4UObDvePDjUiun8..rCKhRyki7.B.6P.sWOWgUy4U73XBTxy4fKADw6NMDZBEnF0X7JhgvSMG453jws1iux7SSevOzRJPca.s8JCA6biw2ADjtfSY3UdQiL3q89Jy.909WWvKIdqvng4lKdtLYtB6Xlo.lATgbMxWX_2DzQQ4MXfnVwHNYczDqnm4RIjmEIaqkahnYsLZ8hxISw8_cUBLLpWvg4Vp",mdrd: "1oCRjduJDj82sRtO8.ydPHqwa9SGR7p3qG_B7OesBnU-1739100252-1.2.1.1-uYjn0AWVvbE_RiUVK4MenOqwtYcdjJl3C6RDMhYFgC4rGr4Aa8aQjSSLR5s9ecxFOjpUyT1f4SMJiglPRYzPFsi.JwrswfIJK0HGqzS7rodtJ3KVZ_ma.x94dB67B6WjrOo7WPuxJ34RAT9Cqp2lCIfGtq7TeFbLslOQktuqckoS5TX4gBWvV2O.05e2hwG.LEGw9L3LFCKrjDExJ9X64zwt5VJV7WJwQYWBjt4Q9uz.tlB3NUc1CoLaPx7hJdJJVcl8XMDw_xiuFJFd3.elXy4GQDrr0yEOKH4.p26SQpmrIpKkyIk_b9lD.1k2atTlqsa0EsaAK74AIFYkv5w2Os2ky0Uph0xAvnA8HAsnEvMj_yqwciyRBjOBgluANR4B0aPU5IpNgdASsftPK_YUgHc74wXEpXFZGBZgt5ud8OOiHu4zW6G9LIIVCtxE3AT9mNqFnsrzZXSQ.LFhFQ_x5bIlBWU4dRJMkCE2EgDLyPWndaUEByQrhXXGxnGe5xgOEUW.jwuid_f919hGikgNaq4Y9.0Tz4qnVN.FSRC78CLIIREOeF2WuvcaJtsork6xTmES4meJqjxsrnu1XG3LZ3LxJKEoOyzXANiMX1kQ1WuQo.uATFgsx.iwbE0pBCYVb5_iVikh6OEOyNJbxbkLXGbAcHwjFj8oXAnZt6J5It_dBUoJ_4AOpHFGVZSv9rwf8POKYajsnNImqBoXBMwl6vWrz40mGYFMvkdEgLuyoCnQ9Clr6DMa_OPqTgvVJ5Ln64gb8868VHMQKgcuCahDX723ilZjtzC5MaadGtGDCzbT_S9C6Y96cC8q4MPYReDKY9j1yCzKRfi4Xv7spYW8QguifZ1Co_y7.RAsiw8WWS6QU5sRZDfPLshZfZy2J2XHYDTwpev6ExGw2zzMx2ml9KznEg0BvVvAWy1GzJ6pYNqXmfuIfrZ7_gQfIlauipY9fGbtfvsvkJjomAelJ.AkjqpB31F9jOGGfGVirdL8Aqhoq3IrZgy70SrmxeXaPpUvGdzsVOy3FzynwofkfibG90DpUAF82qutKiWY99vSauuGRwH8Q6cSsHe7Doj90sOQ4TYOezeX2_NsR2qOT3uolOXrgLVBKmKH4KNOq4BtYFuODalJd59jXY7mJs_BFkN2xaL074r8U_iVbARTev2AxplBT3mf.U__Ru5Me2ZP.oTg69KT3tFQIt1VTbeEhDbsPfDEsBtdmooW1kGhy5Y5cUa6uBuaAh_7xUft7DQLbywG9sd538X_vpdn1JRoPNToJP_HkxB1Za_Uj0olhgeuXjogADZ.HD1emxnCvlduK14W0znIS5BuG67fe5WFZp6Sg6dsolr7gLqL7PRTlS8ps_Z0xQRs4jok9EaCI_L4sjwd1w9NTu0LCYaWqO2.I6TL3Q4wFP3eNPbBaIR055WqXEDehj0mzdgAn1vMfv3wh5PumaWp9GnRtB86U.ucrkKUl3J3E28J918d4.vOz0ez6XfIqUB0n3jD9ziLHFss8rMj4EiXn40SGh1lSRlABNrKRYra3BX7QisoCbVg.GHzrhC99D1sQ.ujge3gSTYSgXggligE4wpT3oG6hSViz04Q6icfmPvSzEzrCnUDpYYyeq_L7t047FhaVugihRY3XYOeBkAkNxJALPu0So85cGCWDrzGE3y1vsP7fcK5ym_DX8zFZ9_Se.YnEF6CYshetfvGoXnumtWVoiKjc8C4ZZ1jwHob0hfOnhMyAQC8ANlp1CRgUODAw_FGoFjqA1yDnJYNZ2SeGV2HWMlOUzaRBXzcP6l8s8r0RGcWhFhD7BQFhA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f37ddfff9959b0';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\/6395874120?__cf_chl_rt_tk=XTkz0O15DQjxARDW8g7HX.nDAcPySoA07aHxsiU191w-1739100252-1.0.1.1-VGon7nUa7MHUyEeP7P8VJRnuBL0BwC9SFyiQ1Ej1_RU" + 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