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-aff0agwzr.mit-edu.top/post/1907682453

  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-aff0agwzr.mit-edu.top",cType: 'managed',cRay: '90f237054a7c826f',cH: 'oTp6rqDIGvloDRpCe1pbkdjZUVWZ4PE5bzb1mi9MpCI-1739086864-1.2.1.1-qruquIjGAXZOQwU4ndGQkvSdAWsNQLaI3ENC4uokvTgPupd.rmCw6pUgW1sgH_0B',cUPMDTk: "\/post\/1907682453?__cf_chl_tk=2H5qnYiK1beIBaVcY__SjPrEehKPeNB2jjfZs8XOthE-1739086864-1.0.1.1-yhydPw5EUxtK_AYh4VgrpVN8hzQz7T.LqFR6dCFcnZQ",cFPWv: 'g',cITimeS: '1739086864',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1907682453?__cf_chl_f_tk=2H5qnYiK1beIBaVcY__SjPrEehKPeNB2jjfZs8XOthE-1739086864-1.0.1.1-yhydPw5EUxtK_AYh4VgrpVN8hzQz7T.LqFR6dCFcnZQ",md: "BCTyFMK4BfsekGZ3ABM2qAX0ivcie0W7yGMGe_kc2PA-1739086864-1.2.1.1-jCXmFWdxnxaH2EYpy6RN96XjtQBL5bjyandNw462nC6FPl7Ixow3IhqA3qiOVmlHxjGznnUqfR3KIb5v_R8lgpDTQtFug66DisD5nw6DvmXIegkOU0bbO1eout62H1w0AMeTh9wpKfg9op2aZlo_3HH5IPVsw9JueJgOXL9sitRcwnOK9IPkW5HfTBNzjFmjGE6P96aBhFzYfKpvTZ5NUqbg.zVHncAduP1lon7SSW5tCNZ8y5xdIhkaoA5MrTGLflt555z1jD4P3zAy8g0_xID9PILpZUMxUPg9TonryWu0vtgXqiei0BL3.wCijqF.7c206S_fYryM._oQ.aFiWQ0IIF3DRfizYoraJFAp4vwd6qwdxtDRxuVJUDr0ZtrbYqfte0SCW4qfADNiWAMXzrvaAgiMVeX3tmyrwmyB3eVEjeOesvauWgwiHB2x3U_.Whwlzc.NO4jlowz60LeST3nKAjg482VlAoH_DDGegk0y3jqDtv3_BH7RC9shCjv2y1LlGWhiHT6rcv.kqB0CNLLJDUVLJA55hrscoBvgfXUpgU2t79djGC2nPdgfmM3EFFQVq4I66_S.o7w5BHDhebHBC0HC78Ln2ThI9ASzZRCjt6E1VWkpr_HD103IAXIZ.DiFdI4k9w6VJRsKr0jTykg7UGMM5VVsUEKiqxexoYrFVWljqS5ASuM0.LpkNRxILdFpuV.eA5YKhavWf7y7KeDJKfGPIDD5VnpGbCTJdEdb06S4mfeiuru6LDUGDDkvN8x2Rtqs4pqkPQFWUBoMJWWMQyfmXj.lqEIjvQ1ToLcrg8OXE.mO1KppAPljlF0GFXW.3ec4s2QJQxyPM4RN9sd1rXyoRqmIPTE9X_kaYY3QHsqxsBuLdAsTYKQjqbysWqKXGTErS.XuH8L94LDz7LPs90SBkj80tmwBL.SFfowIzScxm74VugCNPOZT753.XqpjWs2ac9D9iRgumAhKZLzwDaMByNbyVmdK64moHlqzCP7aHK4UhZkZoTWcjJwGLwhxjc6v9sLJ2AQSwO31Ypoao5VukasRzTOTkdK65Fl1o1qSerue.WuAU0UpgfYyyR4j0yWslKJASGkEkTQ7ZWtux_lDTHBlfjxNnPoAsaEh0wAx9xsiT4MzmzD0r..LaPP.JdpbzqR5rAz.y46JakOt1PDup_nwlytIC.Ii3pjJrNpJXr4WdTVYYLxnDoY4wDGtzjvsyHoEMrZtU0i4jVJDPzNWVw4p2aeZUGHj9vWdi36gO8moSzcv6o6i_OEj7uQtNRsiiGq4gN7aKle4nMIGbDiH4WhcKPhmyrKhpC0nETiXq1NY3MeyvoVi1t87GJgHHpsFxdzoUqIgmmxTEA5CAKeOtb4nFvyEoCMxpyGZdoPQG5HEKRR2d0ISVsQnNMoG1D7aKaJlio5GC05E2E4RySf7FygC6GUoh3VD4rKVJPrs2HZeyZBNSkg_c7QYHUa8TbBLMBRYm3jOPnkG8npGLDjcOslidGaGHb3xvhzXgbs91CxPosVNruXFW6a.EvLVfvD4MW4TZGTwH4T.iJ1Wv5UjjnFeBOGSLTmum_aEY.MOsR9MOr4qZAPWPp0KFSAfHd6ywv0dx2pOyKstleaMTOfBCY4j2HnNos03LHSZGf6HvbsJTR.RdveDXzQxXnVFhAQSjw6SnrNdMDYw4fVR8iqBd.uYzgLyFpQ60f5jDQBBhucnl2m2bxls9eR0Z3mwOEF2jUeVeJuKHLJ.s8zlBArZWoNUIZ6excee3AGGU6m11j5a2p1aJvxNg8jsp.9amKkq5Kird.bN_xc.x9a22OkpFPhQ_pzk9bATfDgx0R9PU8AqipVRS1tpAZHPlI_QB4GLIpvLFfbAABeGl4KK_JhpQO4zULrxXEzBS8JFZDDel4LQerog3iavJjS3Dc.lIeLN29bifxTmGphz6Jq2MFA1rW5JeSObMumAy2Jbf11aKKZDmvpZrWskeRtKLt0Qbu7hwJ13vIGafNUmZnmRr3uUpkFla60_q0iX8sXRdTphs8Z9AyMfnkC18dtLjwcDDQUS0mWb7y2VV18UnBkxN3SYnu3fvhVIid5rDUQP6hsZbTm9Kz0qe5dMklj8W9kA_jsMRX58YccG9gurQy9eIJ7aHEFg8dMhbPEsssIbgJMwUuNiWO_Sp9Rorr7YJ.Do_sY3cXMa6fafhP73k1S.dFtKZ4RDw3FzBndBJVeVTsC8LwWKo1MbML6N1lpu",mdrd: "eHNvQHDPE2bVBnCyL_z2CHWrZ7Bvz_YsT99.6lfNo2o-1739086864-1.2.1.1-6WCarUvT..QfRYiIbUPAPFFoxGAVuvESU7eqv7zKglap7ejyhVoqEdNGFWujgKsSMGIphDZXVwx16X9KnJNgPgxNCfj9oMhup6cZE46o88FNEYCffzw6cbhIgAoxvLVP7WP2uuTQWgm29Gum_hJh1fFbehdDFmRwGgc4QW372IZ5wp1z11YEUhrHZDzjJ6EPSnwWruYE.X9oa88aOZzz7tdZ_hTyEId7GN0nq7vp1aWk6hcp__w4xqOwp7.TE2HDh0u7EhU2lLDfEPuce27QCd.Sw7fFTecqUZKcQTzlzmuGbRf9hLKvIOkYhnmpjJX11s9KMOMhRl551D2xR0eVDmaQGHRMh6hv.oMk8uFawarbHCETCjRoeXLDeaLh9UMDMnjZX.tv56_4tHKFxhb12I.uqwm6F0fVT_n77gWpImejoqTBmQTGGSv6McwRs4KeyY93HDpjtW4RST6wGTa94DuuUcewjXUscWoW.yqtsRMvgKVSAqnEjMrnJ4j6vRq4LkzsPEI9ZXDmP_lDMcMSzDghlqxX.tbm0biw6svX_YfYMcRe5rQRoWRlhLaIAz5AXLsAMlDfmSDEcKp9NnoZzrDV7V0hCeN185EIEOmmNtnZ6W.NBOucgNvHBxKTgLRnxS0C.lvIi3ZilkJbqOScVJrLxOKgjUcUuFsKRrk8epdzj5m91qQXX8j2MHyme1no343KL_t46523MxLqglzbjFSsfzRN8_i5eZCpbzPOXkgvkEvH4O8JHSsFqGjUG7fiKW1oKwUx0.L5tsIe0gZA6mnErMTXVnfYwELwex0fsQdnlKoTT06RMuCK3Yhad3vZaLmBrP5ba0ssrIgb0Ej7e8D9P6eb2GCmAFWN.rDcBFmaGM51CjXZUYzRjgz8mfpG79Ko848PbYktKGm5GRy.LLbmm5SBy2v_A._AvX1Cv1I2aZh.DSYEMyMAXF9PbzkOZaH0CP8ITyL1O4aRKh4NIX4OCWCUdJfOMSpQuYhstq2zuSjY1n7.MBrnS6zhZTlNyenvC0xK83mISDTQbWBdga8hHZPyXmkdZq56x99cRMaF9BpAN7F8jaGjRANIBkazn4gBGAL8U79zy4vUrYBQZjzjzJUAxNleFPH4S2.xxrpEztO_WUnC75cbP5OG62tzo9ZZZVApKO9ZcRX2BDRWeQoiEv6nZQufzjyvrVZ4qgKqxKhF3epOdg1vKFs.Sc8.4mOZwFXUvFmG0_RsCC9Ur7b2KZ2owa3A3Lbbx_zLxfJGGXzC8GI1.Fdf7APAPLWTow8H9IKFnZCK8m51Fwabh_GVm3AyN.B2EzzzPWRSO3Xx4vPK7b53DbAe1RvQWknpOoVKh.QnC45ldA2ZyzXltP2JfO9anEO2t95MhaICzqzg6BZtn9jBA2Pm1DHqAQkUgtiTUP.JDkOTlOsHPxB9br_3rfsQztDmJkOgl5ai2vpN4OJAka7neNneVTkzDIizWmSmVuepWxMQ6.hqoGson0aTv09gTqQ6iASgFP6cOIrP1wbF84RhHbnYaboGC4ydoSELJW.SAjcJnyY_fzlUcWyN3p3kcq55rX5BJ7ADKt3FAsgZNCFdcI7fQA4H6Zlw5vfKHr6srvg.cOik5oEH8upwsudcq_slRPg2pOpar3x9A6fNZlGTgR0oqJeSMxGW649X0E3glEidYEh7TxKaP4HyWqWP6EzbJB8lNiy8xe81MbO9pku2bBXbVt03yRtiLmSNCoi7bDes5VhcfggmV_kVmEwpHtRbEBjwebJusiu5U4TRdqIzK20Hxfcmt3nqA2RIQCW.P3sfXDg7wh6zGe6.eHBFmt1TCtzXz9cvVyI"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f237054a7c826f';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\/1907682453?__cf_chl_rt_tk=2H5qnYiK1beIBaVcY__SjPrEehKPeNB2jjfZs8XOthE-1739086864-1.0.1.1-yhydPw5EUxtK_AYh4VgrpVN8hzQz7T.LqFR6dCFcnZQ" + 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