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-affdoi8qe.mit-edu.top/post/9480135267

  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-affdoi8qe.mit-edu.top",cType: 'managed',cRay: '9110b4bb3f723b00',cH: '460y3L8YdOaPfxi8SHqiFtBQHXWIB1p6X26Pvp9XR9Q-1739406586-1.2.1.1-l1ZFtPMIobYrIgKo_gBZha9H7T6uJxBGd20JxSQuyTiDAohQHsBWbgSe0HOj28i6',cUPMDTk: "\/post\/9480135267?__cf_chl_tk=7HYGOJX3Lb8j6HmCXz511JRfIjuX2JymvxeU5scFcIE-1739406586-1.0.1.1-0rW3zl56Ixs._DbFTokgLT13bckS3DQhKJIAJZLHHC4",cFPWv: 'b',cITimeS: '1739406586',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9480135267?__cf_chl_f_tk=7HYGOJX3Lb8j6HmCXz511JRfIjuX2JymvxeU5scFcIE-1739406586-1.0.1.1-0rW3zl56Ixs._DbFTokgLT13bckS3DQhKJIAJZLHHC4",md: "1u2ChQqsViLGYQb.somHZ9B7RHcRNFVS4_eiMfWT4r4-1739406586-1.2.1.1-71LpAvrc_aZK0klWcm8nRFTS41oT50n9q6nquG69Kuch.kmKRQoB68kz72lWNC5j4bmvuFoF6P86yZV9DKGWI7AuOQDFqWtGk99lFNLZtIE3B.yez22A1unh7s.lpuc4RWTGYD3bQMD0dVH6rZoPDbkfEVCiHxNKdhASvPGL7Nf2r22I_SDbjZGt_NgQ_BxOfS48p48.ahcEIyqLWwvtvwje4Zy3HR_d7PVSn6wtSq4xlnuUWEDTtiWQtIeoEAm4qQeMKv9CYAiFjLTZvV9PMTrLx95Fm1_zZgn18y03UBNcQkp.ccezDqz8Aodd4NbKz2n8C0L8RJFLO5iEaTew4h.bBIIe08Lr_yor3oDUayGWoWwqhq4Pz0XFlUIesrvNZx83gKIMtziTJ8hcT_m4NBhHkHpRqqQ276uoaCKiKmA_TvAfPVjG94siZAoFDJaxlCYPMTyFop0NPljeYTh3iMxTXAotFnEKFleqKp_nhu8Ye6BBa0Vm_PUHBLprrMy0V0wRLTZCjqT.pq4jpHOov0HoZRPzXIlq.32ZE3fl0VbwhBLeKHNY2_4MUjcsDGBWCz8EbuwiSisV0yQ1sZKL8wxBBTMX7KMo9Ilz5BJAH_yElrhEFa3IaEqLTgGvJPZpvWJk7dM.CPMT.vAPw.3vnOPTzdHE658qgKAWtgfYU_vI6sn6Cia0IxX_lV8_YM2pXMKzx36Qpx04aNdrUDmOs9AWfCYcS2CLgDlUBnXVHpu5RoAIBoS0kgNOm3JOZgh9l6wPqYme1ApX5lsp46oW46wBD.2Fc3YW3fwnHUfxettB2IhTmVtKSLvEmMRmsr8QQoTh_RER.El5OGQk8ZGN.ieSIxvSPJN9oR6ROUD5s.p2MoR4_ESIAsu68UmVgyVjn9SnAtXP76UKCBXOk6tRhcyi40Afvt3Scfb..qwblsgCBT86COlTLJ6lWdgw99e6NcU7gSnXg9kZZX0CumGpo4mF18ELnQwRSYVovytPMZOcj1bt8KJDuOANysDw.Ufbzf3NKzhhaOleJ0VwiEj5Zdfn5xNRWnYNlTSrYbW6PnUwLhr6_Y5r0rHAzAlbfkvmzMiCXGVCCKpf5wxGj3Cf_Cr9YFJ1wLlzHhgm436dShqZGzXBwnnUT6PIZOmZ6PJlvdnLJX6xtbgG_HI7uZ8cgiV6VOHMIxyKN5zDL7W6NAOvKxKZ6y.SEQeuk0e3IwB86iKQI6W2wlWl4xd_C7V_ExwDn8jBkehi.Nq8aUpESRbOA5ZoLgF7HEfvsXZKQQnibEloEsi9nHFfsai7d2n_J_Ga8wqzvLQvfnoRV2TsQMjlZDtVCD0Xc8dwLc4lENbL0a7S9kEhX7nGhpJqGwPgDgO9GzBTwAKjdj_EIuH_riWFan8uWlKDL.6cOL9EmF4iR9cwgRgToS1Pb9dmC_uEfX_ChCZbfnTgCbCBxEFW7od.0xlAL6.4x.gLC9XHJk5JVcXZ_RunOgs9uJFVwWz8fLEYki4uxHdZMnQa4N7tQwCgcIp3FX5XLLH0_hAZO579ATlh0sBXa44W8HxDgTCVqtpyjG7b.zV4NUJuJUDuYNjACn6CnYdyZ5tpEdl9lGuQIURIRmju8N1jPGvWE44IMwhF6yZZtlTaS58lEttzHmzarJ8EM10rDzDGULfnASh0GrA_eUAH_EkMeoLK90.5tN3G1ANyyNt3DiZY0M3L9mEe0Od2WIWSeGLNUMwCoPWWNv5RROJvlJMTnt9.K9ABjtZtmGYkdoC_uQN7m3TkPt0zAtZBvx0nGI861IAjImkHLy4LYofAoB8irtU_BJY0Rn9YBpqv.gK90feS3fPrGd5mORHux6AvGU2iJ6IzujPkIegKNyffEiCDQlfMJ3CJ0T6XUTjbFyxb87r7pI22Zd.b_aRhLp35lGGRKk0C4KReZ8SX7_lzUIN_ewt2.HAyRUguY1atlJGV5kiHTor7lFRo0cg408BrB1Vv_kVPOLDE5N9M93cirHYLMpKevglEtZ3ybpQoiczg5PAGXsx._d_.0SS4_fgrGpO3XddjGvR5FJ0GqNG8Z4ijrepgxVu55rKW6P6WZF3jplkLPNiRIN1MbD2nCg9gGaYsMUs0NBBSs_YOOFUZisxrME3tpVLN7.LwwXx9wixEzOGyt_DMoXdcjy.INWDdqpCi0AbqFEUgZom76TF9uZEVrIXajTVkfLr1wqrK85zL3fLMN979xwGzsHPyHzw5VJEd9fb17.vx",mdrd: "s8ZXMt6ahYegWymcMZJDSE2urA5Dp3fZIjJ8KGk7jlI-1739406586-1.2.1.1-3J8TJ_S5tWEAW7h_ZO7t7EnGW_Gc3EqafjG0R8XRzsCqxhcppBewRHB2cgcccgYB2CojIt_2UQ_ldqohwtbFUvmzUZAehdpCOq7__pE0qP2VEemobcxd0FGu9U_u9J.A9GcQbfI6u.zvOnDbr9Q99Id3lcTUoVFLEyYkqlqoYe3ij27pvSlzFabk2CGLVJsMBWKqdVjLkeUZgWad78xFScOu9u0lc99xxh5onoUghIC.JaWX4oilrvOX0SMqwSqllCKOoMEdCnlhmIhKCh.olUJbrnCMzeQMPNB8Sfk.KXTsNobhtMdBrSTqU9UYA7gU0wV43MgBD8zsU3tYB6.3Kxyd6JBs7NyIGGPzPIIa0xbG0xx14jFKGLbUNkxjeli0wrSFvAJ_GaWtz92gdITNYVi9IQy_6SPyutkL_TS11Dwfrii3RoVEEBNAZ9hPY50SKdtuTt359c.L_rW9USqZ4zLuDIKzaM.nsPGDtDx57rEe3KDAyYRwC0RvcN5CB0a0sKi9QziEQfo67zrXb.mjIgZAT2XT43Q1FpFFKbSSb79RY6ymAhbXBf3_dU_WX3enh5xerBqshs4yiqHzJRU_9OVqGUUYatMDEQwetY4U5hM8FDku5P0L_OwXumZTn1dUREJifQscEg0tS.VVgct4DC65bi1FoECKpTssjFZv1Am38M0BW0HVfiDTahleAijJdvpdZvo3lU1AnWu35WpUkJVfFO8bbrCUAisMnedQ7HbllBSa3EH0Om5_4FyUxHFwf6OYcZImSkYElw.Ut0oOc6FIcew7_aSTm701zW8uKe8RqXZnxacb6XEu8ImR3lh0890zWueKNOuh848JTGmF_3_9Ol12VZFPwq0ZmeRCVSSza9pndJ51bMjLy.wWfDeU9j59j2x1C3Xofkbqhbpt.oAZ1c60o1.11qMAl1jmA6OH8ayQdezb3d1c6W.wbZjRGAFXZS._eMCKmW.i94OtwqzcajnUlotucGc3.1o.IP_gTwMbz8ltA6Db6Bzg.OQhhPVuubABsYCvK_yybJrbyFEzE2kYTwSYSmhjKnhgbwyJEMqkFckZrRJAtNK9dGx5kowUjvSRoBt9dJLHzb5FhLxis7tZ2.mVzCBSYDY6yMBd1Uiy5amSPbzY2ApPdZRHi6MkdkpBifqEyfe7YcH4mB4n8q5Ph0vpKFkSsXnjy2ymsD5T1VYJy_4JxOcLg3kusglhAVfj1HL7omo7MB2hg2eykZr88Yxt.K4giWGrFVgEGlXKoct6_ExbefoucO7JolfvTgxyElSQ2OjSTd4KapZjFevKYaFKJLCiAc0gnlxlEGjLnLc42.4dCgKbzdivHvcaYLbhXtJz8FSkCESQ8LCjMQxGZ2xHWJ4O1dl.N7lhhLBUGHsW9QpPkdXcGU_kv.bAeEyNASgcdAJaeLGjeyZYv6q63WTgTI_dT_WwKzkJEH6_GzUz.LM7Iywmtlx4lWTmlnPZ4qdBUUYZnVMflDZnQ8OHRNzkwGh7O3Vw7oLQ4JSJSV3CEm5sf6ZeiXlwJAorA6umowuy4qXGs3bQkMuZz1LDXWzb0uKikyaFjI7t8W0dk.ViIHtJ.CJGXMFxcn5PxDGW68H79FfdtdZaNFeTKKlFuPDafM9VjYpKI56gvA1Jr3hyqPEEXK0ZWBxZqh8ThQx9S4iedJUyWa1GveCWdW3eXloS4UMe3SHcA9_v3MwgJlm4DsrUjqwnvUctoRMqpyYqDqJHhPNXnOYHfxZPnDRxU0BqcYKiXSIf3mpKM2iQ31KY0awBy4LAuQwxCQj_iGvMJW8j_E6VG7iE7WPTTwn6ET_5DkhnY6cnHOo"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110b4bb3f723b00';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\/9480135267?__cf_chl_rt_tk=7HYGOJX3Lb8j6HmCXz511JRfIjuX2JymvxeU5scFcIE-1739406586-1.0.1.1-0rW3zl56Ixs._DbFTokgLT13bckS3DQhKJIAJZLHHC4" + 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