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-affdj6eh4.mit-edu.top/post/1608943752

  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-affdj6eh4.mit-edu.top",cType: 'managed',cRay: '90f7d347ea5105f8',cH: '8JX4ABHr2YLtEWFXMr81Ve2955KJn9xiSr2l94NxrEw-1739145693-1.2.1.1-Hl7SS2so3EA.ES5NjlLSbF9kYA3eZ5nrq4hxhg6EDKhnFPFnSgEEXUvQ52Lv_pOa',cUPMDTk: "\/post\/1608943752?__cf_chl_tk=XAeEzisfdQC3pF2EZSNyiW.PT1urqgFpIqzCqgRkGiQ-1739145693-1.0.1.1-tfAH_HqhpklKDBwWEikmFc5CHT.s1gYvAFCRkBujlAw",cFPWv: 'g',cITimeS: '1739145693',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1608943752?__cf_chl_f_tk=XAeEzisfdQC3pF2EZSNyiW.PT1urqgFpIqzCqgRkGiQ-1739145693-1.0.1.1-tfAH_HqhpklKDBwWEikmFc5CHT.s1gYvAFCRkBujlAw",md: "xdQKylU.RsCcJ98_DAnk4Ec0UVRqEr3KQgH8rHTLDwY-1739145693-1.2.1.1-rCgyUXrQx5h0JaU8NSVqUHDJbSiKOvJu4F8WQkLuMN4544jFlmIsZXukIr5ZwAUnnzzU_yhn0LcmOWPVVnuqiHVOx9O09qcn9uXVIrMoIuzk8lVdVv8jifnCIudvt4ThHtRORcsoMPM3LUeTVX3UyLZj9wPE6JhhuPXWZg9rTF9ekm8_.fJURoSazNbyMtJ2yu393_tOPvGHreQ0KEUMWhL.MeQfQd6Ke8nsnIhZwV092QydwDyUQEqTZzX42aQ6B92DVkoe1uJWpI7CnKyRfhugouT1CB7QZ2_jH0rxysHVDP8igqmwfTmvUqUf1ePmbKmZv_ZEkkd8ZqqY4klJaFpywDYNhikznVRC3ta4h7NY89_TFiGq6M.Y8zPPOErSU.7.JkGQlUdvd1YKnENF0fn5RWVdqlrwT4N4569c3e_VmjlOSThlJ3qHg8iTXXjzkKVG_sH3O8zC2HmyUiT5IEZ6DC7tEkd1pm2MfFaRE5yvhF9qA0z1CyMgsYs7Ql0rWnDZEdTrVt5EvHTftl3J0ot9GOrkSaSmwQ2Kph58J8VW0ss_f_XOnV.yqqexLIYy8guJYoCV_sE411Ug6FJDh5p55GVmLzN7kseGjrZP0JWePcNQKgV0_rJlRx9hrfcSBPQzBudCIrIl7RptiWoU9VuPTEp4.64E47QOSMJnpxDCIerhAqbP8_0wesKHGfQ3r5vHvHczT0o4OujNZa1O2QRB4vDqKHZ2oSpGnrfZ9jKH_RNcEm5WG2EHeqB2pTJk5AQKXDnZOo8ovHvihMffmB2JHUqjW0CJhTY7SONoiCDX6dKu1tbd5IPd.9xT4NNYjQdAhiZmDgfIkBH.ZyZalv1IHigZZ2bkV6D.pLs4_kfTo_YcYrhoUR1VkcAI14ykkaYJmC2vPczCNQ_kOksmsDozQikbwYiNyNDCbUbZoRpl985VLmGz.47LyoRwUVGLBwwAfiL8Ysrx6lpedoGzldJF7jlWnqGoyEZWXsMo82Jk5Vfs7hb3yJF_4lVuBOnyBucwZrz5.RhXbvTGn541PDaIiEx7sU1FqaAUiQdw_PBzWY1_DZF4ebTBMViMIhEcP9ISHmCNGQygiNpgoiPIn8oICX5FwWc550UjC5dFxVdspSfyZAxyq0hi9gkoeKLxQgvvLXz636Cm0AAJz1CbWHb74.ZjO_2hxUukG7vWN9l3d8BX3S1wABgCIAks5UxxO878XsqzcLU8l0KGn3JU2LquECBESP924agU0.Rdn4KcVjZk0KPUqqzQ6JhqAMLFLuDqSPoe1EEaFs2Fw0COcEPT9XiTBkhXFuncifKIAUKXTzf92D28J0p3N0bcU79d8upTtOTW.0sndOoDDqTl.rQDkMDIXaPpx.j2F4f3ELzLb8TSjausei2eQKw82ByiLGbfmFcronj9ykpfUsbT6d3NyQphwVSAkb851pwlPSO3N.QxhRBfoIiSXKEChupie7.xB54VatyVP8439d0bvaAa3qxapdacKbKfnuL6qnAw_ltKFZHSneROlgun0C8N9U9xBGTKvelcn9rDddYC3Ly7iRLcA8dT3nhhDOk_CTsjSWJSwFxht7qxc8hko3ZOAwW9J3OM3sIVaqU4dXeGNB.i3bBXhfgCIJQN8WZNPDE2JnRovkqQsbuVeXmSoPyvZkBxjNLJ7MS.zYOQ3Hf4qMIALOp88gssKoILDK8fNHeozfihSrFO5QjRw7fvJ3MB5KyNZLWHECWk5af4hOHESawjX4q0NVEz_P4T_qSlP1s5sEkHN36._RJsfFox2Q4GtXd49VQrOJhK_sT98H2J9Tba7YLpA.Fs27UoipBBEgee9jBEDjwqR6RCCu5Y9XZ1npL.PIBaqUcgFP1g5MiVdnz_NZiPxDTzTrWjU.BgnYoJTwDqM71QKn_fSUo70F7qtiK29XTLrCLtnf1F_jEvLEm9DyO_eQ6f47SEyKJUdU7VMaiGn8q1jJt2UPZUN0xDdDw7Ln6iOcwOn4hxzJfuBChOgeBd9LnVrFz_OAVlgQ0i5XKmX0uu7znOV80CS2dNrA0AWq1fYbV7CkDE_HrOMKAxOf3d5oxVptKuULgWF2ZWXjBYLHl9SjwnSkbG.AogCncZjeyqRRcQTzt2GkOUlx_3c05rM_JUOPg9f7WiggwMS2uIRihuEi3m_V3AgMBc5wxt1Orqq8a58ao31oPKAp5DYT4ZgKx2ovKVQc_Y5IKFAODMpQB3lVyUbLfJMEch",mdrd: "OcM3D3v_JopvJb4T8H7DI3n583csLpQfgv0IX2iBIiw-1739145693-1.2.1.1-0PWHpz34Qc0OidZSw1_KXQhRews0UjMTcg6OGZM3VtuCM7nTUukMHWz59acLQjJRMEeB851Jgf0S5e6QX3kEpQES2rmoTER0VCiSt9_kkUhtsx0CfbmjvfW7DOccgXSIbR7TahaY2pbauK_774pxRb6v7RHVQpwgSb3lgiZcN_LoOOnvVtmAd4jfBcQqFqvncWdIoZG2GneFszs3WTe25OSSV0z3wpVZ9BlZu2PrZ6OV9PjT2U1jtsJtfTDxaKZOO2IaceOfRg2oS9m7CK3y44xDQapqcXtsjoX6OjHiR38Z3rJJ.MMO8bTXe9q.N.B7tustRnWfd7dno6.pho7sarlYtEl2zA5wBwLB9LvEUVwMAdu_MIQK7uXsxPEVZgWsSFMXXLhtfG29rRQ0NOKffbxM4Ysz70tZuXlHexTyOUDa0PA8wsa7LpVxcmQycd2viW5QWU.zigYkWV1BYZO9PpWPSbzwt6Y.PomMmAQZuf78w4lRBZhgxzNn3cUhhiGkvVMmT_dBISQifD64RjS2uSRvK2c1EpfWTdvo6Ak1aOhlmuEA8A6WRiiRFJjywdPf3e2S5XmL_h.Ux0bDHLl.GbV8mJvvWRYi60VzrOQv5g2QVnc0oi8uN4vGJq6_Q0aipQi1Gy.XdjO2mjOGXmWXRnkjsHFw3xhepS4pKvAiij7JMOXSAjREpHG6y_wFZr7XJCk6wBXRNQsYoUvJ25U47V5mjDzjaLRgIyWXZQHMeYEi3ept6XB6gyqgnm7aZdGv.8tYTHgDWw_rKke2ZGAQl6Wn1TlEP4jI7LJT.sntcC9PSD5NzI1nobNp6LUZb7wwp0YOZTckHduxSpuNb0h5J5c0wP8CTF4ktN4JXHIOWVUhuG3QHEIU8U05WfJRX4KaihqBf99c3OLMMta7YJeEl8hUto04voNuGPwzHGL_i0C5CyqcbGux9jHCJENhFO83b4Sdhabo466FF86_YM1HcwyRD19Z2AZopHpEgip2W7sQK70FEIHNuR1mNrniKa4I.YwX09SNMXusqPZP1xPJZoFAUEk5CBNRlMUIEeBvp3dE_nJsbK1v19Sr4jV83zB965PManxjhEoVZOLHDHS1v_RfwWf0dKpMm_BDG47eaMuUtPaa9v4m3wlYPGMXd3P7SIiudojccfhzj7HUzETbZzI6KnJ.._IWsiXQIqe8DSS2iH_LWiVy9sN9U3Re94i4fThfIczcGjZ8hVe_sy6KhhpS0vkbS6RLxZjEpjGZElw3S15l2Z0emfPrs5.TYyg2NwpoHLglruA2bEW5unzNSnAx4Ej4XiUPZ0erit8_0K.pVyPakDzhwh19T3y0CUmuSY17M0DYJII_YP7fALj6KdXX8zFTfWBWs4n170HFsGE6bSG3G2MLuRnc_SURbBpv40_0SMp42TRJNg2.CZnyPD7Uk1t4bgSuvQL_T3.8edyu5QJod0CxipyS0jRCvqtYSYeteKEnRzLxHh8H9fEqufJk_JIz0mKN_FSvjymeY_xZMihWESIC1stcQTcr8IKtx08iRBBac7tZyCP2X0gvaP_RhnruZ3CmzOgTtVhLxWDzKoKvkShwzL_p4Kl1lzUF5kcQLm7joYCkVx3amo0yjyrh4W.7jGpqXpwlFrl8ZzUtnFkGmdbQggitJxt0LuI3NXSu.EDwpggH2gxQgy4u6ki5N5wR5Hu3S76vb8Gu9RYVr0ZdeTdY1VtOMqMpA0YN2hs0tYyqDrlrTelCN40T6I3FildeWuuJqivVcpjkqV..4JRJ66M7N9lstOacEwZuayn7e.URRrA08Bp7p.XUG9HI9sRq3bRgXhOa4YN1ig0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7d347ea5105f8';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\/1608943752?__cf_chl_rt_tk=XAeEzisfdQC3pF2EZSNyiW.PT1urqgFpIqzCqgRkGiQ-1739145693-1.0.1.1-tfAH_HqhpklKDBwWEikmFc5CHT.s1gYvAFCRkBujlAw" + 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