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-aff9h7usx.mit-edu.top/post/7013824965

  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-aff9h7usx.mit-edu.top",cType: 'managed',cRay: '90f81681ab18d68b',cH: 'ZgCFE9nWLoEnhbjUIPBNf3O45wipu6Y0.MM_vugvLFg-1739148447-1.2.1.1-OJfB5V7v8VldDlDAYZ39k4Q1WtRy122374DseAScvDXZJuX7kv.bYiodlNx7SK5G',cUPMDTk: "\/post\/7013824965?__cf_chl_tk=DFBwA1k9qxH7Vy8deK7O8fqgyasp64qu5IVGhf_soQU-1739148447-1.0.1.1-yQ7wFn5x.g8mSdrRPVlcacOME.P.v6KrIqdhf9IcXXY",cFPWv: 'g',cITimeS: '1739148447',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7013824965?__cf_chl_f_tk=DFBwA1k9qxH7Vy8deK7O8fqgyasp64qu5IVGhf_soQU-1739148447-1.0.1.1-yQ7wFn5x.g8mSdrRPVlcacOME.P.v6KrIqdhf9IcXXY",md: "2BNcopnHTao4nYlSgMTERYRfwISmTnakTq7.ZmkSxAk-1739148447-1.2.1.1-rHO3YFmRLqj3CRLDW5RAJFKB048fzoErZM3tYJkZSZtSxnuKr8qX3zGERE.qPtDO2sX6nLLYfftc756XiiM5U4.tuytPpP6soWrZboZX699ihLj29ynwTR0Usp0XQgnXI2ibaAVi8j_azF4UClRG4BVkMvFEzzQpo4aundM6QgfjemDcs6kQ2Z8qhqzoZjXRycgnYkGUNmzMPF2JSyUdNIIpK0bscpMiX8SXzOvEuLrfQZbDtxpumHrUKYuGVQbWxcfR9joMw4HMX3O2XXQzCmmDqi.5JxTQrbDbnSSYxzYW4lXnzhUIA3EOerk7Ff.qsg1RJ_VZqpEjfh6KZenUg9t9kUobI8FteORRu9eYZKxQOKkgk1AQGqsOceHBR.DzzjYgIQ9mDCJP_F5QazYU58EqozV3nGm7ayJ4Yuvv6hvqN_ZHBcY.0IkJjFqmJ6X4sxdjijcV2YK_MDU_Hjk3Mh4MwiNs_t6DlYz3Smj0O1Yi9zgPfcWhyQzYU.wv8XrA2PBNcuv86KThg1W7kztmREiHWrb90FbHkhc1466Ekz3XksMDeZT1EWbS6n3ZPp_5bk6BZN9tdF45x2R2yKsijIJ08oY0tbZx5ueXxXt69a1Fu8RVtneHegeUCf8W0jBHR7I2H0FmAOg2aRASzjPQsFiaY7pfo38Zn4rqJyCgzepo8HJrkZWal9CThFWnZ42LHsKb7KWWLe8hT3aow9YirGYgVXIVqWJMKf7sxBg8iUXzIIX0RsyW14a1FvqYIYk6vwBq48IkujDl.61QarEQfaMmtyjkqcnpgokAhHd37YnHNRfP1HH7XECk54AN6wNKC7MnVRtZnJRyrviz8eEpp6jTqvWDkDUtUYzH7_XKZImAQ_qFFBbJDqTXZgWyYHwgODvi2GhdoNiq2Qs3oy.bkMjho9TVGLyQqLBMNLASZPBC8A_3Yf1X.kbwTmrKvRTCE8w3SjSX4M2PvIRAfwZXIrGeUr2FJMHRVOHn351ts4WGMhNS_wSsSgDKh4nt5e3WNqH_S7Njvz2OasJZIauK1LKE5jJLTuJymW9wA18gz1CQQ.AgpWTvJ2cPm3VgnwW24jZ2nhvs7NtlZKKsVPClMsHTcQWbZWIds.j8hU7i6CCwsJLsH3PdoK1iYrQI273QxfhwCFYnbRsO4zD7fvIgRx5LQrDmDH8lbGrG8oP0lyOFHsIEvoU5UCFu_6BSrDp9kIEuMmLfQcmxKHOl7S9g61hKGcsDL6LUeTc4QlS2e0B1_GernaE3Qvg.OS_7ujMvmOCvL4aOmVuXzR6Uduo5A4.7Or61t6Dd7djV3ISjFF9ikDdOvE9ZuYR3BvPtPs.GGH1xgvx_V5tCMdcq1UEpTHaKyRhoD0h3gh.qtvwRNLmBnofjjx2RHOxEuduVuhGkSSD1EFobyGQDKTNhsPvN4FnFnIIIKv08DLYR2fuWmWxGfJIPLUjXFVcz7IlGzFl2cSNC5aVkEW4CJWWQFg6XzA8_.cftdovgxs38hhKlmDh8O_dwZ4gpqZMDu8RLvHPQMVLrVP7HQ8qU1U4i5TMyfmOcfjNG7VgcjOnQw4ZLW5gVLUAouK59SS3dgo7bjOqowLGcoNQnz_c1Kw4Hzi1KDzqwB451b_Qze7B7az9_GTQYsHMqRW55aMpa6VBJ01R1VaclBpJoUSn9O4ARiX9AwHJfNOeR.e2t8G2QkLHLdPPJXHsB95aQVS_URJbRCh8IjCQZgx1Y1ZxkJp9PcbDmIBPT9fWcv82x40ea4twpgy.a44z2VMMjLz22VCxiyqq8aSUa9diyPOMvE3WS.G1URYEaGmo.oPHXsF2jnZb8jbq.vsvk8a3.zeYOMgwpot.PVhr3WCWSd46dLRZh2p_cYS05Yicg1mOf7FqhEHEevOgTHtb4TlhvJXMvZ3pxn60mPtj8TZRcBIeES_qh5zF_cwV_Jr1WFjpOCmw2ckTv5gz9jhOR1UjLj0xSZiYg6PA262vJ3ud.MaGwu4xgjPN7PWfrU2QLw5IN2KESpYdu_wsG1iU3QsRSOHFT0Xhpt7GjgxfEYWijhxZ_HMroyQnhWn.HnJZdnArIhNdux9ylA2.r9v.RvoEqt9QjTT948HKNjLppT9vKHBobZ8KEMqAne3u1.f_EIgWPqCfM62In9BptYluANUq5oPhXtItfUMvT5uSL0Sa80P6RRK7pwdIMBg6Es4ufMA1y339BcrddioLrDRKnwFJrfQN3hw8_vTe3",mdrd: "UIjN1cVUTCamwGtQEfyMq2YNl0jUiu8qGTIZpVMXy20-1739148447-1.2.1.1-LFf.ptx1YkSUGeOpN2pO2mTPep9D4zQFQmxhDMHBcRfacLXTtrweYfG.W2RQLISLAvaAy7UiHKdM8B9U_HgtG9fVyEnUhwqhubk5HELkQT4WDlDGR7FMo_Fk17iGxeRU3fV0BJOvGXEm8y_WE67P4ztEHWxitPl8hI3aZAHNZn_nhly0bgXQndvGv4a7zzP4ancV_2b7HqRjtrlFNeqrsnlRwiSeX3TY01tG9F0WZt9qmQZ0Fp1Rp54N.bEzNG7xVK004vgvpw.jY8xCRdo5QdZu2F7vYK6xwUF8yqlB1vcgbylvTkAM8rG.BRqB1k5wG.LGJbOQLpFFzosccf3Tr_HdxrQkNQkr_qwsyzVwiMaPwVVEN.mn7_zsBE63VmVT4mkZmsXJq5aA0lekqaPxYtrN2tNMRQgWp7cEcEo_DAde2xXkNBEQrD0RZYcyR8TBUrwucyeH_qJEsEZxKqlaLRjuN_eVjTobqWR6ZkC8vJjfRfsBUTqyg1ghCKW0mZpzKtkFPe74huMf67ul_mxly3YVlPDXk8Mdkmvc2P.vamxxs73lYOVl9uRDOLlIqdZpmvDfqxPU5XXq9sLdViiYzID2Jm0v_CzlwGowBs5lMJuICLCw19rM_E4CRrHKR4o29jhSdEVwXZ6Mhrsypo4.eTM86sqepNDNW5tWyidQ0NJz6z_1TI7gFCArkU2koZEONQNl92qHaswQjZ8AO0jrqLJo0_qV1PgC3OzNGpQSzc8X.qaVAtIGmwhGGCE0P6OQkllM3RD.JjnfNDGkFYdWUii2xoUbPXlK7IOSnNKPs2GtHtTyIBig3GWR420nhOnfY8Yte_MabjnwEkUrGGDVJ7noybLCJ_aAOi1.K9wV3OJabg_k_2S1w5cKBUW9t_sJtjky8w5DHedTyQBFBQZdpkxZSxqu9IOuvPAD6pYf2V44kM8dPVWftzE1KTQO.Xc.sDl9mRG1vxMUUgf_a5BDhUXJEk.7D1OL3Rh68JoWnHvv3dSFsd2hfRg.WgkVS.7khJdseoi2CGYWj4yDp0_H70fMjtZn_aXw_EtsIQvogWDZeqFZ.rATAulnLwkVjPU4unLdTMLHZ3RXHm_5QPqsK.SyHXjRlgFkcGUQXkWyEH_hkf69Q2hg_lPIevqt3OUYxpmrREkeZwOYvIiVcNMtPBtE6tpVey6n_PREtX8mrGL74kOz9uNSST5g.psHsO6mODh2sUi..U5_vJF3MBWUw0Y71fKwtnmtxDGNRY9SN26qqbB3L5.MjlTcrdBQ4PDU_NrDCpgTNMcgf0lB4EF2OWhX1BOevT5EwumRovF25m8m5YTYprsHnXPAimGs9XOvwSEunw17COFm7XrA3w.PkgvDXakFO4XRnwl.Ol6mrtcC9T_wJcjlKzB_agMhZUEjzJHbhNLdXOOhrpISsxQgUxdmZjcgGyq4AouPbXNGKYx1ve.u7zZhi0w.AAQq_GFwx4AH50Rf82tBZIXP6FcCT2fi7K6jKQSgAGJH2p7AYroTEa_YGeAK46jm9UK7qo2c8yD3767wHwJvXH1uL2HJ1iXAK.0YNrb4pP6oQaHiqWX.I.H6Q4ZSTXpxRrjb2O.JnZIupgDGVjd.9tgH4tWazXbvK8R29jmY.ypHXDkuaR.TvKZxhLOnXcVCJNAoc.pG7hSfzSgrLaVuzwCRGSr6SEwFA018ivUuGr6LPOK8.sGJxMiLtSUBc16CWzGlUTh3DNKasl79JtyieFTQ8KbE5Jx1jOrUilDlKeuh7INcnoNkEcG6.zrNZ9fZEHmvcKRyUFaW3Nn_88NNpaOeBFoqgQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f81681ab18d68b';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\/7013824965?__cf_chl_rt_tk=DFBwA1k9qxH7Vy8deK7O8fqgyasp64qu5IVGhf_soQU-1739148447-1.0.1.1-yQ7wFn5x.g8mSdrRPVlcacOME.P.v6KrIqdhf9IcXXY" + 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