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-557709901547.mit-edu.top/post/6201985347

  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-557709901547.mit-edu.top",cType: 'managed',cRay: '90f7bf22ed532009',cH: 'C3kJcGQA3L5nfd9U0XIC6entIb8F2r3fkzcQIyL8OPY-1739144868-1.2.1.1-vNOV2g1BCzMw1aNE_mjQLFE8smh8lMe8ZtSFMglft_HtsQG5jezXagIPxHqxzyf5',cUPMDTk: "\/post\/6201985347?__cf_chl_tk=Ttal8sHrw6iamdoTcpxdl8eqJ.1J2hmT74WxyfQQLjY-1739144868-1.0.1.1-pMz9fa1AQdTyKC_mCWcyWcaY7RnbJUB33lV7lo87NqM",cFPWv: 'g',cITimeS: '1739144868',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6201985347?__cf_chl_f_tk=Ttal8sHrw6iamdoTcpxdl8eqJ.1J2hmT74WxyfQQLjY-1739144868-1.0.1.1-pMz9fa1AQdTyKC_mCWcyWcaY7RnbJUB33lV7lo87NqM",md: "6RVQ6d9KtfrxCEiOEbWgW7LVlBYupFmNI4F8dTcbd.s-1739144868-1.2.1.1-GpGAPEyF8Q87pJEN24SDNbjwAbnd8AD1fV4kPf6yIyaIZ3L3BY7p_2vfaOd1dpCp8Ur758fbOAZtvnmR730lM3I_wiHyfKX0NPNCDTyBJ55owshxgvaRLecAcp9uk0kAtr1TD8aPTgGaQu9uaAYneky2X4nUkV3DSZXF0wNinKRvVSco4JEZCdwQwWik7IKFuuWs4ahSvqFWlyEn990437kdaXUtoLy2SP4itAMKEzrc5IJnCEzXdEPGXrNV1JP9EkIPGbIRns89uRpziyi1lFE.S_W7Rfjkm_qoMyk.KQ8TS9BDGFjkHlgQ57QNxcqT1yu7bn6dKHuVje_MgJhjN90aCKOX9eFi61Tq1NiYbCZ168Rzs5W_uXQriDOlET2zZ5FJV1U4k2Rf_rDPYp4nTpAylynZbicGFbmQ2Yz.e.Gkt_M7bn2TanQVHqXIG76WF5S7BOzC3dzTUAD5xZo95F_1EUDfO6JwqFhM6TUsMSsMg66XGQD69CH9f9V9zWuC8IkeLtPZbwJPu0iCODiRdem4d5KqwlwADE2D.qdY5zJpw0gvgfCZzmUzvmuKMXRJZL2EWjgzxUnc4vzEJ2ou0yhH1eSp6PNhNfMuClJ04MeBXiM61h7u5zbWkU2G6niVAqER6TMCIUHD0fwIvTdXoi9TubNGYfuz2pVaivrX4Mz.DebVB4s3BRtJPsd5aNNGb7xv8OYlCTKPT0Qa13ihUUuz3SDfqNulJS13C8XrwIYyowo.P9J6yBBVaxtd.lu8DzYJedkdet9h.i6Ws.t2965VJU3fKvtrZ1q13IP9a8ZyzS5.ZsnIlt3YWAG_X_PTe7cfROcDnTTrFHxjCFrYsArwQIXuG7OJ2KotDPv48ZiyGgOLivkUZVgoRmxjq2p69JDyzcSUVyqhYhFz.xxidx9vbZ860I4Uri2sDjJ_8jg07MFvFfd5H6i3XivoJq2M.hjs.wLHf9xrvyj4zRdfwLDApTXBi7rgItDhaCTcKEA_drLNOVaPyVEvJxRYtM8_gkj6NdFcz5ADxSbVXxhRsGVlHvjU5sbVQkcY4gFw6HTG9lsNbCGahSL7eY1xWHaOg2grxHdKYuI4Bc8tXIeO0K9.NBOLBGgVYR.kU4sRwzROLZdjU8ARUHd0WsYfPxVXLBWnDeHRmXn3VfvWiJXSQZxoUEkxYxkEs9vqGBp0qH0sAAXMRsCtp_EJpbT1nDPODMpXTLbM0AwQq6ZzRLlyQ9pCfnMX8SkqUpnKbY3faPmAPElLstTIRM3z2eM0RDo6aXkd4Jid6fMywCjSkNHV2RhYWzTccjBpvD1D52O571rT3WPYfhohfHiR9k.8OwjUsPrvs1bKoid8jwEtdo_NE5LSgQ1s4e21kOD3Vm1Y8SQATaa_u2OIduAtNRZzAwmI1C_N8zt7xqNCQhzjXQPaihcAbwukEaFytD5sJ0CTz4x6lX.dskLLVSkOE4iZax3LXvZuGTMvEYZRlqsQGIOdUT4K37ALPGiEmTweMwhxa5IkAbmqiMsfI5mwqspkKN5LrVF9i_kdAG8qBp1H5GZ3YxprxxQIINmg4Wm0gAJd3DadyBqtIFpJq1kFToUHX9Ty5OqUql_jtv1czBIBYb9LqJPlZ6RhDWjFhfKiL3rVncGhNviZ_KnkekUDhSK4f1UJxnekjf1RTBLr0JnlUKyU3ZeYViZjfqoDvw0JKEPHI2O0LTZXe7tqJcqCyd2hLT6M_yNyoTTHV0yJ6sqad3sPofPtwL8Mb6w633suA4j2G3bzVXJ6WjOqHMBCbXV_q1m5GNkX7L0ab91cuyrM0Hpe0.4QizxLs4wG5yPrjTO5blQ07Rx_3PRMu9qaRElP2JFKKM5iosxI3mWByv_qgArg85yNQeTlZkVvcO678X4HHHOfCbrxHUDCEHUIrEvqBWgVZC3rFnaxNTO.5dL_Vt09DfhXYGwJCdDkJ4bed3Fx2R2hCCBAo3Lt1MsfKfdEqAG58so_HHy7UoLI3x9eG1mwYPIp1mPmqRF8YewJ4iu8oDm6ge92h6_YBFe7YbHKLwWEw3geujUpzzNRmt11jLHxXJMLA_iz8U9DyEDjTrQEo.wOein7T23epy3T_6s7SjUfpkPHHAuf.HE_cdrWfXYjDOsbDTclCg5gFnz6qHadlTVwy8iXYsu0lhpiI99vkO5aN5ZQ_uVmsNcClnD5FLiYv3Wn34bpWXtcK.dENIhls07AB5ju6DAC95ILTnWuPmmz",mdrd: "82lg9C3yXj1F1d.7RfmReA4tu23b9rF9YgEfVvroVbU-1739144868-1.2.1.1-Xz9TcT.YFfs9jDWeLRW7DqjxuxGS3aQcDaBeKfeGE2PMfpHHAPcs4uGRQ.0iXBxBedZmpBD3sEeU.TbQAZctqQ7UX1Phm0fK1N_TJbocK5w2WydDyFndoXIHRTI2FAsCdA.U4tGQWaQ3233SSFRkSbu6Yu85zDR5GG1_dIIgUFzkJ3iwE8MzIkuFpDIoP.2sLssRuiedqbuiSjW6hlfrt7v77MlHY_kVOEvAOvuI9B8aSD1_GwMMbRg7Im0eIq904tt8onx.Epfoz3_uInjC8ve.t2NZ9zUAm3Sxhq.B3M1CAi6eD2gbP5tP08JZl5jFR.jW1vvIXt8KDohDzonMZRbF5ZNahcyuII27BiXptM5Ndu1EV5h3k7qLlZ7TKP87Ok8mEiHxu5ehJYDBMNJVbSs1oOqL8PjN4q6MpT898VX8UksgHYJbaNE1UKbMNoO1e8QIL5O1H1WZ5dgJlySHWWR9cCvgAKYh.SCVt45vM2v.QYP91iw67MNPZTgt8hP1SSHqjJRRKekmJUDSWKrxhp11LRfI.GQqBkEehaR4pe0m1fX.X36AOYX4oxMYah2CQAJOy9Jt0EJWJmS_4G79qmbdzo_KOkDG9vDTcHhoUBhyvTTIQ0Z75m6r6MfioBsqeVU1WnimUxsG2VY4YXh3Omwn39S3SNCqwoDhAIX4YSISvoXeYHFgDJGlaTWh4yRYrvubJeuih7sB6ghOi0Suz0rvtWXsgIFJ6soYPxnBKQRJ.4sPfQuaOvGS64Pj01ED2vaw6Spt05Y6NpYOVQRVzR_0waiaqO.5iXNnwwwRI3ry4I1WyqL1m3_vt5gQYKOWsCgfNp6M7lO_FdDLYQ8ZrfApGoCJlsP91Qn9.X8p4zEQoYy1TRehBU.tkSFCyU51HjO_QYgnjS9Qcd1TlZH2mpbTha2sABYeRpcaste3Pr9NLT7505L0TFdQum8PVwkk1T17mE1DpVnDED5KwrU7xijc2CoETi5tNznVPseKfNtK1rQbk5Pp89s4GctHlWTtxWgy_M4kQTATLXtuKdk72rRNGbG0Vn2xSCMPIUfUuhEhZg61KoghYuNj5MHqcCk4jLlJEibQ1F2JqsAsjw.JbF28h7R4e3tUdC6up1MM7PJIgSM0Hf4iAed4O8kuvcqT_pyxU0lNLCntEDAw7hPOjO_e6NUit4ljyBQ4Et4zyc.EgU994NXEq5cU3sR0.UmS2q6UXypEc1kBjO8b3md._8hEpvs_vb1bvjrcKLQX5p_rbfvTnpY1pOqtuThAJqTPZ2Xrfrbu0e_konmk9GheZCu5v0roi2yPcP8f66dOaPOnpNcg2EMfzXNM_UwJN0UIa4gb5zMKqYcjHTOM3kLun164Oe2XaH8kf.uc_WsnhY_GQAsgcrRpSZxQ4ozvGCSxsDeUsKQ7YRcQEAukYsxoarrZT5EAvVUGbc1b4QvIthJ99nVcIqDLzX49t_ANH2xhSjRessiGpYs7MS4q8ohSuhagSPRQ4TAdaKBHOgrOMGaqALUlFgkjXfdERqLNgv4LtGFpY24dg_UZTwJlKM4S2zaNA.CWoZ8X813caVs2Dp2GPJ7ap90KrP1bhN.8Cz8MKiJjbJwr98QHZyK6GJQkfj_0m4NxJS5KwyiTgMvRor.zymofj_dbgAQsRarVXXVE2Fps7vGUeYzwG.aJHH8DbEQGyaYgNxI6.gZNiMC4kUK0Ocr6eXgKGoGr28f0OT.Ep17d10ICTRWA4Ts9AsTo0nvboWf2I93wPMmdTAIob5aOZIIfYqrY7lQAuvYaaNoDPUCi8wM4gROVPbwYpCwBRw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7bf22ed532009';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\/6201985347?__cf_chl_rt_tk=Ttal8sHrw6iamdoTcpxdl8eqJ.1J2hmT74WxyfQQLjY-1739144868-1.0.1.1-pMz9fa1AQdTyKC_mCWcyWcaY7RnbJUB33lV7lo87NqM" + 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