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-affdlhe6c.mit-edu.top/post/1803567942

  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-affdlhe6c.mit-edu.top",cType: 'managed',cRay: '911054b49b856fd4',cH: 'zgPOlmnaFiVzvctS_CfmExnmu2_05hMRrxMilTaug48-1739402652-1.2.1.1-iHqqBXIs_E7Yqo9FGUPdG11JjSkj9LJ2jtN6WpCwknkzDSiyTHT2kuSHtL2634xn',cUPMDTk: "\/post\/1803567942?__cf_chl_tk=VIAblsmik6iCjP_lPYVbY1iOb.vDdQVEQ5s6vln5oXE-1739402652-1.0.1.1-ze5PHsuZCcQiBndG7dP2gRP5Z96GOomSCHk1gwUefZQ",cFPWv: 'b',cITimeS: '1739402652',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1803567942?__cf_chl_f_tk=VIAblsmik6iCjP_lPYVbY1iOb.vDdQVEQ5s6vln5oXE-1739402652-1.0.1.1-ze5PHsuZCcQiBndG7dP2gRP5Z96GOomSCHk1gwUefZQ",md: "iI.OFNQFjgvCmX0FvEq3ZMBs0cjHUS2jnKrXiSbfXV8-1739402652-1.2.1.1-oud.YC5KsBgMSVmrg96gh7ZSLZul3Jwxnb_1cNoKevwAHV6nhG_jMX3agQs3LVKdM_nk4OEEWWDUPe3gtusH1PfuQs0AoYd90Y8N3M6So4V6NL1KeeZguqoWxJqmP5WmgfUf3BOXx3l_UPP6ek3B.CzFgPNnJQH9oWIZQqMn1kKtf_OTY9s_6W1ZLq9bBv8sGuTeSN5qhtzRO4fgy42z3njGoS_EiyasKkLCADEokNHWkCmLhPCrOhzthTQKJ8xHY2jpp7pYJWbCbCAAQNJ2_pMNGBgp1d_o4SQfyoptvNoSgnsNjrF_1lvZAxT2FDwh6gUNDOk7BNIS2cLAK0z9bjX518pRhfvtTgiAmzfjtRDJ5ocVfFK4l2Bqz3zrTkqvgPxOSy7OKkQKd7qQfJbjGyoFnL4ori1hdlTIUeIDF9hWisU7qR2n4eO9mtzPcqpmZDiNNaS1UiTTHLUeRx5QsOkgzmQOf6PJoyLu5U5qWiuKsRlDKy26OWyh3LPf2aduUJDZcMFAUJbBxWR.8tVQ7VxfdeFM5DyoKtPn.BFjS74GAeAYZ0PmXA.MWCxPz6hjE8I50tUL1dqVTIe46xu2VVytG270GkQerMPoCD4ANdnV38SZRSzckQgWpWDC4Npi0omx1FZB6Jh6DNUG3vPCF3gdOsf_s6KzaPIRQD8ieyoBXDMS.cRUFnJgLpZHTGflX55Xh90n9wGNUY7kM9I2FmSEuo5GvBZ_mS8hE9Yopi9z3CZEvLG8Y4nwKLMzpzMzXN4p_Wduhw_qAbQoC5TO33PusBOqgHU_xgz51crjGh0Dn0ipu.Ry11eG0g.Qj1hEBei7iv22VgnsbRQ86pZz2isbJsj8H5wRYlrAkcAagC6nGm_XNKyDjAihqlXTOZPKDZaUK_03TKzREexCOUQUU0vvNJZZZ5FLbEUcRjFvoNHQNzcXtLmVnMGv5Shd6DKTWKFUQ6oFLeKrLaCnKcDTomL57kCiIszGjFE8UiwTLLmdYqRQ3.j6E.VHOg.2wJ3SUt77niSiypxHIRuX5xIWdFPlIHm6GuEeWHeqo3tixe4_Wwv_QniGbj5dQfDYon7kCPE3MxSKandIGSy4s3pI3qjfnhwpvKcF7FLzrxqaoQWNnuQZ2sS6WPL686ZcRjzuBo3EAFOppWVmdmyQ1A4MrY0Vb9VVtZgBrpGFV8pwXA28mK83j2JRj9eWvm59yrhifI9GMeGoVyWl.GVQeRhRwgZ9ryW9vzyF1dBOSqtThM1eYVCxnBJZWoQPaXbijfTBj31VWSrlvNeorBOvdWxIDrFwSlPTfrmaKMQbAFt1esqW3sl0LW5sAJEeXKnBfcWsSy427o3whgL0PA4gU2TZSv8Sd8hiW1z277j0RReRfTT9lpTyNC0TRAIi1gD.MaCI83ZVl_PgOEiNJQ6GC.zCIEbhuRlDN9uyiRUBBsg30V9UKFGk_g5fAAIHrKrybmu8f.TOqzgco.8ZDuFqHzaao1mV0cUfg7_KOnwp0qX3D87QTL5TDb3i8QrRKDvqXWs.WEa39EqJK_O2sXSFwW5l1r_yyJis7PDi5Z6mX85qBT2RC9s9JBKrmdnt5II8BfKAwk3iDryL9zTxzgfaV.kft4vagos7ByYSVgQbHIJou57xvRfeTAWc_QZ3EZwvnaeP9ouxoI2E4kvj4ve8ieJPWwu2.oOOXmRuApVg53aAj79C7BbsN8ukgvw8N_dR_ayE6RmmsnqUuKwW4TTsYggLbdWoheeWYn6lrWvjeT8PmHsifhthFR4pezAeQNYuSLWL4vqDNeQgrWsycHVwjS_VMzbbwC8kbFi5MEbp4UPVL_yS1iIscDn392DRgMy5A.Fr_ihg3l_rJ.HT81aHP0zi5qKDSSU9hrZWep3qhzxYXxsan._.oNpAkwtfz3DzcbANa86O_GHXGAjoqXf0f.Nrv2zonSKZ4jbFBwmJNAxrbvOMlQyTgOrhwItIEc544p_buNn8po55tn94dh4QYMyuAGDzMEHYPjjIeOCoDQoGcGO_KAlm9WBGkhSPJ2vg8KZ9lLrKTiVNa3Jsg0A5T52HFFQp8eYoFGXGRoGbp4XsLu9CvT6noFQC4WM4qs1i0BD2qAmsJVz_yuxZYsNORQI1lJ.X9LOJHepmUw2rSofL3fTdnWLdDkRw0aNqiYk1T_X1Ivv95LAU0chgxBVq1pbVM1N5.qQ_uJn5QUb9XKywa.iq3u0lXMnO.eKe8agwZnWI",mdrd: "kpH.GVk09sXftDMI57Ev8YKxexfb9bEaj1_3OxcRBmk-1739402652-1.2.1.1-VFmur3E0.2bFBTlTj86GQKD8UGCMcvll6LaLg3ktRjtNDA0rJ.RaiRVLomysfVAwnjW8ctoWUzMKvqBjt9ud1KsZzkUrYXS7PmBBuE0jbw8TYS4yYmb.Ha5gaJS18c6PZVZOeHTsZ3bkK.xk2dP0ubNvB_K1n8rTX8MhW7aFDGadxSZt1W1pMloJOPJsPqRDBc_oVV5_MGp72RqoGZzw6t3m58HZkN.D8kpvZRdjKTrKYp8ebh.I_Ib3CP8jUn6mzlhEI657a7ZIzlmlO5LV6soOorbBtcFeAmhtPzUldK4LQz3G25b9axNveMS6G0qkSTO5jwqH4Ak0m9Td5UJdKqQFiUUBpI0bRnpmreUeZ61_NWZLuYpGzP_R67RNTAUx7ZU7HmFgf6tF77SPvMEFaxxsfPStcJH9PvcalJzB59OAxpgiPkCUrRkhvMTflud9ijR185VZF8ksq1g8YPmCL_VSsiI3DAg6QwOgTgCmjQieNdPzcFHSEO9QPBAk_ZMcS.wLzNCLW9w.fnGDsQ81nh7baVJeoyWlmiZCCRiHM9qCTH6iZA88WCCanC9Y5RKGxSyOPGcejlRcHLibsp0OS1p8aqxHEkovsvfxr.EsPbfHipueN.zYJzW7i1cptqM5x_mEj7rK0MCOayjghe0wzOZKYWSzhYJtweUnZj1izEg0FjqucB2wJzKYqeXdNBYEN26wAF4F7jJycvZ7kci6edA_tC4C0gX8maycmP_w22iIp3gqQy1uj92ulgD8yzKajRPHm3vrTQ7xIn1AWmb17ns4.Hj3zuRQfAVwvtCHkmibVLTev8mIxts08cnFWvvxxbU_1UuMxMp3hB3r_17VgMWh8pmzAD8NNkdtrmoscvUim.mxXBh9l31ZBD1WpDzpNzg0xOyU46rBWRyK1iswjtlVzTbAEYWHVtz5IoAJji._Di0mJgXCPHEGywsKRI6EWDpQIOKAYTavMQlfDdwvrjwwIvVsu_4i8wHmTyNNZCvw6YWi_yKC3zlSr9MMrsjYL_SWkpD17gqlnmBkDDTl879NEwSBeO5ThGweJwY05y1lcfdBP9cCYU0HA3LzxqmDE4cf4eZN5mdGbwRYLkbsfYmK.Jjy1MIsAllYVku1bbQdi9qbglSvjelFiiLeAeK5rRIGBH9hQU4YX984n5a6NTDAHYWlbV9bS17mApv.XyVPWkAFPilH.dU_k6SDmmr5J3KOb9xUNuET8W.nxpx4B4R3.bDe7KpmB5HhKZUUT8T7TFDVT1b8BcwaDF8jONUvv13DJO3wDlERn6DwiGf15jES91OTW9CxfdKHibYQZYLO23Esl7..1woANq8s.k1JxlYge5QnxCvrEDxrVwSaHK.hIoEO1G3.vvyP9YpWHVj1jPAb6E_xFnr4YPegtxjhMmRYPMivZwpjeHw3Ho75lySj4rnKMsmlwusfFnQTaIUbX.Rph_9clOP0V69ur9U_FuY2sG8Gpvqx14cGoGTxQ16zZUgxst5cMFWtVt1L0bKTbLtPc5pN1T1_kaLdyVgb4KNXvp2JYXehSZJ7m0t9TGPnxLG999_DnsFrDMItK9dcuMVdurk85aSbX.W1FFlRXwoPoEwwOBPS1YNzuAEw_j23dKwObxg5pzs48NOGOBXA1zGMSW2PoPkFHAcsHAM7YV0aYq88IQHm4Tqcmrae3fpYJPm3enyuTYmYu2wnI0O6bSYruMw1QShv1Ywuh4Y1Xslq8yUdTcOUXRhh_naC9TpXT8DgxNYQch2.OsxiQRsMw8drLdd5qO4ym6w5WhFA69.gmAXLFZlk9VrGuKtreqUy_7UC3BX84Jk_fmI2uN4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911054b49b856fd4';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\/1803567942?__cf_chl_rt_tk=VIAblsmik6iCjP_lPYVbY1iOb.vDdQVEQ5s6vln5oXE-1739402652-1.0.1.1-ze5PHsuZCcQiBndG7dP2gRP5Z96GOomSCHk1gwUefZQ" + 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