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-847613645991.mit-edu.top/post/1582396407

  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-847613645991.mit-edu.top",cType: 'managed',cRay: '90f4bec2ec00d62c',cH: 'dL2TIGquay1BZbeMz1ZWPaT_O.lkONNuez8bRCuwyDU-1739113395-1.2.1.1-t9t75uMKemv2qVIFVjXoauY8n.B94W.5YaLS0IFZuDMGnvUQjbI_7AE5hLXtZ75V',cUPMDTk: "\/post\/1582396407?__cf_chl_tk=P5AajCCXJ3ehQP1PKITeYsD8vZqlLUUyn7VVgkrGFq8-1739113395-1.0.1.1-NlrSfnw.HyAancttjW17kQ7xD7avVBwwbH5qOeztqpM",cFPWv: 'g',cITimeS: '1739113395',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1582396407?__cf_chl_f_tk=P5AajCCXJ3ehQP1PKITeYsD8vZqlLUUyn7VVgkrGFq8-1739113395-1.0.1.1-NlrSfnw.HyAancttjW17kQ7xD7avVBwwbH5qOeztqpM",md: "t7KWcM2JUVOMt0a0CfDmWk64ILWx2iLfqX.TEgpoo6w-1739113395-1.2.1.1-5ZQ4SDn9SOt_gGcNu.902hlj.yqz1r9.xUwAnGH1alxYhQ6owe0no477pS.2lTiszImMPEMdj.T1DlCUmEX34tbTINxq12e1E6DtoL0hbt_1mvZKwU0g.wjLfc1FS5qOs3Ium9GElqITTMAEthHIBaOB5zGcb19FDrZIu.meAb4Rf0oVTss8IOOYCwXtNOmCp1pCmZG6qNTjd8MBFswPsH_tq9gIVlmqQA9zDXn5IJvb9g3KWZWTnbQq6jIwCtb_I7UEiN9Lh86ccSPhtvgwRjVu8esqlQilNiG.5DGfS2NyoJo88vjQp6Yy9XUjHgcBFpMXk2jOV1aeWL9AjcP.QenEt6QYhQ8Ph.JQDT_fPtTUULsLQSOz37HSZ4lZrpyV3q2X.rdKbhiPdZiMXQd_7xDvaWt4ZL_t4KQjaQbI2h0enZJDdAzV2OR6i8jIfUCEP929DhYsWdT33eKISDK05S5bzuQ1vXknrBLw2zDIOEy6ofd4BVQwsxeQJ786GKtDNCuSE.R8Em_FceIen.JO.ReZ7LoLAQrpY0DJmIwNsqTJoXPFhpLCPAp6pm8ADDxFYMoGO3kl.rfDD_DL88JfYIc1RQEDpjVlWnJSLgy3sg_8wGf2Smcu0bxRLiiokr.IKW32sHK9vbUZjZy7xbRP7rCDUlPrS_Nmvf3PVPvRBE2hNxWxgnCXAlNG8TZ34JLKCAdY9PaPLOXR9608slCstq9.bBdQ9IVYu_t_bkux_Cy9II8x3No0da0MebTM.9l33DwnpQVYBdzqXz2nTk1OCiceil1kppjr7mzkyYAEx_f.oKxzysfMGnPd_ArRP0fTbQCyuWZPAbS9KJsfegsJF0HYyG52hTF6TrWksQtUv..hPSXrdHEUNAEsJn7wDaTWO8WdtiG0CmmsX.jpD91lrIXZHzYhecw.aU9rHCxSUzHGkoAEjli62XxIYwFbzHl6YFcSnebd1cltheUdTThp7d8jA6tP6O3H7D9XIdhqMRff_j.jY1ObyIZBClc9EIR6Gcb_U2vnd5wXiSsbpJFe2JHwq_AYvQi5L2aUdubGV1PUGkf_yWOLcfd5wAA9IcT0De9cFUadfsP7FlygdMQpBl03CXixTQmEWDR.uLyrWiCqfXZhX4HQHXZWwMGwGznYRiiK2qSR2huDzXc4S33tixqMQz_GIefq.XnYfTzb7hR2QDi8Y7ELRWQE42dJCZ152QXgr4vqDbU0WffkYU8hK_PY3g93rMnRqpQwVkM68qm_O0ynlJUJDRVx5YGK9lOekioa0A2LJoEj7X5pOTli0bbBQah1Mlu9tkZQ3Q2T80Kle4.bPbQAbTYOwAt2yS7Vb8rihKlcUsvLJdo_Ij4Aw7aPOvfoGgIOzoGgh3WE5akHs7HFKNVO5rbKgy0ucnSUxNmlVA_gSagbY9HiSDDn_PRB2C0hLOsvx7pH2AagUOEM4XzueIfU4OQtKG4yKK_tsSuPLhyprVNZ4CrH0C67ez_3XAE8nrhfgvRCGXNPXgWNZWOcHno3EWcg5VHE6MoS69m.1raMM.ZWs4cxnQt_gQ0RJKk8R1ZXhKlD7VSot7Mh6ovREckFq4MyZTat05offnkQyOvepOsEsu5quB2eB7H79V1cjlg7Y4PAR.TWB.6Str8tcqe.tOF3DAQm81RAmIJ2YJbFqZFw0ZWkhyxcfxwGwp.p3QFD.zAKM7gfFCU81gaySDYgPta3vxo57vQSZ9ZkGrhnC07plD2qTrYa3SXzMgQ8gEEzbpoCiyczBz6Y5AtYYyUP5122RR.HJ398hAWnND3kjeXuBh97cVPDscO05E0G.xRCkGoP_8RecnCN4FPtloGrKkv7I0P1J0tNUJbh2xieTxu3kSO2JZeYDW_t66F3wmyeixnhD7EhRPO7XXXozC3IDcadSeuqxSpvaRDFiHzXHWnhJjorWx9In1.SDZokorGZg.DfDndFr5QgXoiRlls.il2GnoUIdGbK90bnGRmXEEQI0XhFmNFnglnWMBqy98a5MbvHd.c4XXIwb01jzQWITL6FQBwxvsi_zMyg1FxXHYAGSMmZVTLxCMseDDAa.Hex6m0fAIt8JfrzEyM_bBWi2O1wKTRIgjV8n1ZPOvqZfax2_VlR0t7bjRuOc1my3t2Qap3EIQ.LeX6WkCNzDUKFtEbxQpj7I99Nj06mJw9QUNuPfdzrE5VdHsTsmad0HVSpW9XniJGWlWtmqkCul0ORyhjf9yY9z0Ur",mdrd: "uusL3rwZelCglHYaWQoNxlLCeaRT_9Kn7YnOApdpflY-1739113395-1.2.1.1-H6MnLfBXPmxiY5TN3p5PV.ArGenTZNgPEL.b52CyI.LJOR4f0nGiQULxPcw7zJBM9FPY1VRp0.JmavaHfxrRqNo9lvN0Ahn3Wfr3r4eS0CX97UKUIRxvV4oVh_Tj4UnS_L5vHUhzHSt7QqgLqt49t.3PC6lAVoZB.9yezsdZcgvq.nfWbe3NB5gcE9fh1VC5B0oAIHkJoHSPWH_f7XvY3EA_GbQIwW5wV22bQ7udg_TMMHBlI5cWUtxv5y50zrWatVvT7esBF4sKyZKek0ZlKcjNiq8pYTk7M5l3OaOCop8HneLBjp3nTvOJj7Z0sd5cP4z7B_HEWvSti523sqa8jyFaR3.YQKPVKlbUjwgMtVGc6mRFhpjttei6M1HhumBo1RrMGUsOf.nz_liYA7H4bMGasyqrmhfjHHT92571xpMDnq_9YuOC7ylFTy88ilR9nkytPAJgI1vgyPKKHBj3uFdhrA2Xjqmfwc6ixcSR943Gzzf2tHJNN4Fs23TDLX2BNyDWYstWpDmYC.hSwOrm.a59kUgJ4BVd6maIp_1xccyWt1suMZds3xd4G_2XqlJ8E9iQsjwALqfO1zBTJW3iQJMr5RZMZ0o08OhJfR_ZxVjgM1w1OBTdYSedEGSWgpK0s4O3P3ktFONxKp770TDV0YpSf4PikwBRM_oJ_JtpU6CSnrBn7aohg_FMUSAixz7nlln10C1v.3ZzrzZVghx7YeWha9fxAFMeWL.mh4Rnh_GflDUguHDAKImwfGoV2s8taOiJYY87V1diAoSdmkxtJMjG5IKRO10_O8ml_rUdGJ7LN9lg0p.tj.ttITyAT1s_qr_u3hdAmq3Hdw0R7HWa4o5wvKw.dqlBFt6J6c0NMQreJgjJDUIVRbnrXYrLB4mml0PhZ0PC3yiv7iHSHkBxdu41._5FiPzHHgqqV7xrhoFA9tuFYGxU1oUsPjaYCF5SCCZr3suhJlxLlzW4f6RSvBwxHN9MgxgoH.GWiVuXzVMWylG1b5b.OHMBa8fTt6uitTcN5nnpNmuQZ8T3RKvdaAOu3GsC7u03rHYUIHoClC11udfpRTGSMhR9IP8YSJx_IuRC7MXlUfmQ91sSuSv9IsslUhCweZ9RJzxWhQ2ammUcrC3vGzayTXeKHtOpdVAxMis9yaqorH5Iss1ybIkohnLYYzSMFXLG1LSagM3hhF9dzoCZnnCn2gfYMjjfxORCM_ldW40v1ztdb92nx4f4C9yezwHOzpdASIhZa7f2TiSSeEt9udFyKWi.3DS__jzP.gyBK9PkMj4TjQtXxEtiDBXtYfHtI12TAejPjLiSuZBIRKkdgXTaTjGnuL3yk3_.UeW8UWgk9wK6omDkJ45H5xDSbjtVBHqx4AWfsuAKc3fULcDzyMvkVeM0rTyzb2IiSE8Kwb1EvLLRsXVANLY_bkRadjsxZgJ2EHL7JdPDvqhy7gyipXW9lb3pG6vtHiieojoDzVhh2Wo_ewcA.xyUh63ly9GdTlGNCmvkzM3ODXyLjbhBtVP_JC1LzHiRfrRm1iejOA4Vc7Ynt2o4H9tfHbJ2XLx542.nf0nNJrLw9upBN9__BkikJvtKdsKnMIOnQ76c33P_NdoV4rXgm0kUBLPrT6er9EyVhsCW4RsaGiypbmeIb5CQlJHOQhvvESBqiPUtjj7B4fuQt41SVRs3tUSjUYHbLybpOYOqiJNM0s9XyF86ISQXckHY_aPineYLU.R50.0TkwmlGmrZXFAhzuJA3qC5XLvn1EqWZACJtptM9YrGBE06wF_1g70tHa__StHzXgRctsmJOqOK_p2vAeR5.NKh3ajm4odI0wlbYf2i4.4z_OgoIq1HZZEGJKPs"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f4bec2ec00d62c';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\/1582396407?__cf_chl_rt_tk=P5AajCCXJ3ehQP1PKITeYsD8vZqlLUUyn7VVgkrGFq8-1739113395-1.0.1.1-NlrSfnw.HyAancttjW17kQ7xD7avVBwwbH5qOeztqpM" + 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