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-aff5xl21w.mit-edu.top/post/3496075812

  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-aff5xl21w.mit-edu.top",cType: 'managed',cRay: '90fb23ca383ec9af',cH: 'SdLVS88X.SUVtIizwV3zZu1h3AaOApnmtYztSRc8vAY-1739180448-1.2.1.1-xcqZjqlanTJvT.nmWxkIhoZtqBF0TT7AOTPLoVBkAZTntsHyzsHpHlTCH5_FDDJ8',cUPMDTk: "\/post\/3496075812?__cf_chl_tk=DdL6WakPc0WsGxGitOaR_kAdYdKWDPF.xuWKcvafGVo-1739180448-1.0.1.1-5YINyOq.xL5V0xeZgF_t5mIqMXOA9mg.R5wZuf0UeGk",cFPWv: 'g',cITimeS: '1739180448',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3496075812?__cf_chl_f_tk=DdL6WakPc0WsGxGitOaR_kAdYdKWDPF.xuWKcvafGVo-1739180448-1.0.1.1-5YINyOq.xL5V0xeZgF_t5mIqMXOA9mg.R5wZuf0UeGk",md: "b.2sI88jIQFTw_o2j3gxOdidDIUqoPYZroLA0nk6IXk-1739180448-1.2.1.1-fWY2t6tlr2m6RFSGO..DyX7a1JbkgPfP1ABDDOZh74WaHFiAxuc5dICJMiGBPENd0Sm8eQk55wrkKkuUqajXx5CSPuK73PEQ.eCxJgl8NL6gPnoISy_mkTl.8Dz1zfrvbe4hi6r6QG6hdFVr7RwF73Iv0Ayj5lWtU6rXZyAmXljWuWyaRdDWHmyfpqsT1_P9N2q4EQixO3ZS3Ib8c4N2nd4s92yK3P14eZWbnDI_wmK3kdOJPfucUV952jU8ouvBufmhqKoA8CtXDhfVDtC6AzBghy5RocHXk.JuJYnPJXAMLdSAUkE4ucFTUrRI0x4FX79.Iq3o_ZaDLwAHbYoNIYKXeIAf8Pi5zGFN5vdo8dNcLaXCY5mtA5HpGdvB5EP75qIMvUM_RNZvNzybtsVFhuZJuqPRsZfQ3ApelMXZe_jHNkns7NG33qGzvlr1g8Y5wsaTkpRgBLMX79GrG42sSLw3uj6CW3lP9yOXxLE30v97eZfeIdm0s8gvYkUyTZyIAMsvuFjaUXOxxfVPelBbOhLb0arrAuKswiLNWsMzSx0B6Zra29FexyDk9HIWfqH3_eE573K8B0pA9fXibqZnDMFKRZPFxM6Gsyp5VPz9IpAHO_eRdkOsfF5hsJ8m9kJg_sdj2HAmFDG9bHR8ZvuuLxxBzh6G9HmAmuDNmJyF85JbC_QFcfP.HA9I1ST6dY0SRDF_JPY._lvawn1YTJ54oJuruLN3GVRx87xVW04aqKgRY5nElaCpjaxjP26suIIapy5hJx.HmgSJqvUCQDiJH7VQNg.7.PyAaMtHGkUmjVaZUYtAyYM1TVnZLK7cDmhfOlDoyWIcs70uM2q4uwNv_p4VSwSgVN4ofIKTqw_peNVVU1z78vGJR1ybcol56GDUpVNVTlPUiGKj8tVRJBhZMHETWOoSWM4FRreu8DSkwlefSxGp1cS4zcdSjdxlASuLw3xNKF.RhYRB.8ZwP_CniWm8X1YKYGkwrqpHu0jIIIwFu8__eyTx.O0tya6T87iLn0l1.4fzIsbwTdH_5rYdWwIlnNcQPEbz.vRrD08U645VR4MnQaAVsT0u1_trcnxLnRMuYVqWCnGr8Sp_1wzhA6oMyUuBvevWff4.buv3eEQWZpetrCDUNezbZJJnD0GyHlf8TUxk72eDtExRq_tcZ4g_RXo7eETUnjFmvaAlunArN6vHElm1xsEk0erNW2MSQByCG95HZOEWBl_ejv88TwsGgJ3r44.nn2QrlCjvgZlSIeVIm0F_VSc2979jQ265OmgreKOOaXrht4VDUun4XcTKPajNVgxgrRzGlRc7I1x_0AAoT6bAMJvI_voRqTLrVMZ7JmSy_0EEFF_bnlzosTUzJ_YELIvMH_RwTCtHGThUofr4NDfsel.b9RKrwW_z2H02lxhO6JnSiuqmALINkZRWKyUzj7fgSBEDJdd9G7ipCI21VC32_nD05jrsT0orfYOVRvx5IZt1mqcjUyZPMA3ohetgRrjtCLt1zYuJ1LBwKRJIepkp3I1OMBw1jh7.WK6uwYokCov6Xe80RqlHhnrlzsiGbY_GIhi7ZDJGNkdQjIV9Gr46VtEcXhaKd_KwoRDFqOia0zgPIZP.8bPGFzXUcpgCZdXNSmUuG.6ZCoNiSpUoUf3dDVlYG36TCzn79wKh47MlohbQCB68JluLUfSmFpTysFMhX6UDgFv0KtKdoDjatlA.0f.K0G78kZVPiupgbHistkIye2amHN2RivovHae7OEoysRXPAuWtcL9aCgjzmtqlzR0KI_Bn4qSBzsj7pO44ow53r412UfE6wZHVDfT6Ai_fM0i9yeB0lFmXzWGbtigbPMlQit3UQLTj2c55AF4neGETBPtJsxznQTRGkW5TrM88ubXLSXo4PyeoJpDesK6bD8sMpGc5w9EsQSBpxEzBWT8g2OIzkhWFbT3iu0i.KmgizhTwZzcdOLtA1JbPd3sVH6AsXMkG6plMRspHwtvwfUFw4EcIBwbFRbq1Mjlb5muAyXcPL8gp2tTDcSBCmMKiQaOI9HC9aj8EXkMDEIesZptwTEKFqQmnzwIPLiTkZuejULVrn2oMtBpIdHyG_IA8WgUHkvHmAJP9pThNDB9EQ_RGwIp1YxovzDjF4ZlJw2vM3zRso.KKB2RAl5FkYlkXlQ1JmCiRSxq_SvuL4VStA_cGDqg0.IhZ6ojGMQHgQdQehZfeqvpLrIXSLbvyszM9ueH_tEzgkCx7",mdrd: "4XOCmG2GdsQbJdclJZfIjkpPHhNjzr8Np7r.MHa4TdU-1739180448-1.2.1.1-TWunzNaFBFGqTc_dqnDwmg5OYHY36MhmqJFolHet3Fx_7p1j1wpc2GIhOYxtkios938ATCteLvaQQi6H8EF_Fmh3baaStTPIaIaD2u7FuEyyu6EnW9jHjSc.N9cqr9mUU81jXKT57ne9CGKj390Oyzmq952VdSBpGK4fYVxvi.cNXY9C6hCAtToG5MCJAYetd9r.CyrO94vn4rzOr6Ons98kVGQ_f4dFOYscqTIprA3ZgCbLz2tfnmxCexq.3sSRy5oMeyODz6u2kGVVQzwJtqax.ghtgfwiUKAM2RsUBpqithRgV6_38dbwKNjMrSvrZiVWxdvYhO.Uji_dhQHRPlAsT9xJo1y_KgBMmYA7D098fRqKQ2JeDjcne9GNjGQgEymHxefTs4FUgS4TOZ2cMxWka8ef4YRPn.i3UWPFTZGC7Fh0khCjwSGATa5_fMiFgVD85WYZY5RElXZhOD.txZTVAX.fyikcw0MwQKcRIXUHJQ_6QzoyAf3uKz7vbVLIQRfmzgXc0OJHPXDKmjiag78TkPa8w37rHsrIZ5Hsd.oBEZBR6DbZGXSwDrnwzt.XDLNtW2ib.ZjSU5G.epiXlsX14w.tDN6gdS6iuPSMM1Cea9MsjQRNAbZEwhEA3MmRE7QlV0EvCdEoiMV2hiTi1sqhdZPgV7h7C_bNBQmWFD2Alboo0S5flVnvJ6xbXJilRpms1c3mRhCuzibwLSZMlSfGSt2RyWO4cAszFVbpSFYkmK_ifDA6X_7vZhMf1GT96OeWAFjZTWVgfYga.8rJsb_D.x0SgfTEm6bWCNC9VAmnAvkW5o1QlKqwrwQbRq1_YLrSKtfKSqM3qzGjdZsHBmMaqGlRjBIRucJhV9y9TKNRacAT2ry.oZI_nPxtD0zRpysSIeqhGkQEb1xlMihI9FcrNLf_9hBc2dGAbH1EbHyhscwuUBZJSvtw1_to1TxV4SHh81YjZIVr66jaHp2rEI8EdiJiIYcQzhiUVCA31zd2PR7K3csYiBGFwv.uquw5tDbm8fGQ1FLojuBst7kk7aLlxFaNtBx9PIhNPYLPQls23YdLcDGAjnS2dZ0xcKiODnx9FGwB3n5xnRFKQx_Ekz5MvpxHI7IihjwHdBYI2rXhW7bINtLP5I5PvAu7PeCc6RxF1pvMgK9mP4P8QDRS5F05.v7VNVv0xFR9kFzIfRkCo1kjdY8.DnknsjSaGkaTiKlc0Hfgmc2bJPVYaDw.XGZSsbadWbBOUu6fBh5y2zafhCQ2YABRI3IONGpbGNJk7FhhHCNYfyDaCaHhm1zk3o1xISyAc24U0oEYZHg649bJj2ItJWC37cFjvZWPK37ZIBqSM6UGoLvl6xksHBzbHHJM.auw.p6qIu.YaMXKFNgQh5_Tq3qVgy.FAqmpYCIkAGzUCH2kSypju0vT0O4DPOj7dLfg8NGHjCkjY0xb.gaelsnnUY6kwu6tkgybX345.IzOzrAaPx8n3baus2l_KkC4L6.iu76lLPPTjDq27V2auQJMyq2bRo61NefZbECk4pF.WuSYjxD2NIAeak5X13WR4KwFnjEtJrd9HgURgYeMCpeagfWVaUTEy7VeLpjHj1qJXsb7wrCD.kecL8gee2BWnh4ZrUNWBqm3YiFMHfi3bhWWXI8wloTMvksXk1lKOW1UCe2TOPSHvsocq8xD8.Itn9lssizKPfD.45YgA.mmYopE0vpeDtSmx.l2fRxpGPb.WyQErlGxQLdTV1ZuMzw1hiDnyStmuK3.1ND95RPM.v3ese72dkCDPgTrK5Ia7QhhQ0w0kgjrKKKne7zkVJNCqAWRy._bv2bHP7gXVOcod2NLzERJD3HOR4FLW21c"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb23ca383ec9af';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\/3496075812?__cf_chl_rt_tk=DdL6WakPc0WsGxGitOaR_kAdYdKWDPF.xuWKcvafGVo-1739180448-1.0.1.1-5YINyOq.xL5V0xeZgF_t5mIqMXOA9mg.R5wZuf0UeGk" + 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