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-afftmxwly.mit-edu.top/post/9385207416

  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-afftmxwly.mit-edu.top",cType: 'managed',cRay: '90f8267cdd2a8021',cH: 'jWa8KZmdI9wECFz.7ZS6h.eeqqdut8m8H_tkYVaP5pU-1739149101-1.2.1.1-SNpBVpOfTFhVVLV2kRM1Mv446qHseje_0WF1HsuEwi.uz7zwhES2xV5w7mQauNg7',cUPMDTk: "\/post\/9385207416?__cf_chl_tk=WuSKytTXyjYIOFqFa7sxrdZhEIC1a1GrWr3QeEesXV8-1739149101-1.0.1.1-sABJ73PCUg9n9xMyF34gfssP5nmU.5DcSgUFXGyhOc8",cFPWv: 'g',cITimeS: '1739149101',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9385207416?__cf_chl_f_tk=WuSKytTXyjYIOFqFa7sxrdZhEIC1a1GrWr3QeEesXV8-1739149101-1.0.1.1-sABJ73PCUg9n9xMyF34gfssP5nmU.5DcSgUFXGyhOc8",md: "EDQw1emTppVYoJr5jzH2R0BA54vcZfrbxGKq3.5pbc4-1739149101-1.2.1.1-yU7NLrYjRQS.aWIViHFAZyzlJNoe9UFK999F1uXXhem6rwqpMX0.Nat7uBx67hxvlDR5ga2v2y7IW4vbb4trPgmjFv0BLPD6iCfgWp2ZCk8kxfyNDWBjnZ6qOy2at8ivP_tXIGnZE7fdDlJQNO2UDd5qMDwZVZdsPVFPhKsWiOv2_cLx9uCByskDdyo6jfEL9SvQVP2.fXkxhnctkSj3nK9iHwczMquaXtVwWuHVlsVp5U.x9cC5HuN_bmbDVRNgGNWmL.BHSIOnFvGrNNcUgH9KGdErAILfSS4kijzuRzgN1G4e9eYG8QIKdocV9x6aJ9S9UJtxZUmIrm.mimGnzUhUKWy8DR88QcW8_nh4VniiSKWopT5KTInIw8vpM5jYUcg1zu2dXTwqxTmJJa4GHLgZ5_nVlwkxLBgGJRzhz0mQr9M777679mzmrelUBRy9.uhg_8ZpnKLZp3s5pSQT3hg7b2IjMIHX4JbG2dK0WXj8CrrT9hi.lahGkb0PNmqQnfNCoLYSOscyM5CPW1MNE9a4dLkZD7lhlUSKNm4kS4QCQKxRGJt1Q5fBjuXjYjSJn2Bvi7j3FMCeN3nCcCtAFkubxxC9flcEXZxZ4paVR9vKeJMYKdfvxyDSoP4D0n.06L7A806KdQ.pEj429AS4e1GUG9IqAzXYrof7HEnUbs9FhqjH2HdE0SLltVoIKOZeDVmgK0WIK.JuI8p7e5kEwAnwtLh0qEhN5IGPWc_taQ5q1KirElBS31dVmy0zo0F3gILiA580TWwiWCMpmcx7.cIo3KHaim3kVIwFrHHg7ERVFqvJOXahZ__t7tWvlXj0HjBRTvLpFPjLyU1Aza8KNwDfJVVlXrR5gD3rnmNrSnr7.hnuUYyZED8FJWPqKcLIx8RrchZd92Ru7i.RCFI.VRuS5eudliFmzwD_gqMcZrT0LjfKz8wdhVJC92mPjDQOCREbZMomOom2d2dS6GsEKNan6sPbQYniiV09nETAJPcKOugP4iucMiFsc.L9ZwWTVfV4VG.7QebeoRa4e02XAV1b.q8LMJu0jmeKRFD3CGRY1Zgr7bwnalgw6V3HP2dy4SydiaZ0cl.wm4DovW9b1nWfWSx6IvZzi6y6nV3hPttP.zbRMhtYEpWoxu1gIXESYjjGE3QzW0sgZ4sksBDYRzoT6MK3spdR9vcsmyfhusb6o.t9ItvVQlFH6cMsIm4SiyAHTuabQAVqxy3h24Cu7jl7F6KJC_.rqlYDTKd6dXvEc8aFDFV94U_0FNzCwmJZ3zO0UJL8GvG40OfePd3vmfgx2YfSzXttMrmSISiA3jLRDniWaZlbDpm4d.mds5P7XLgbu1KadrXJxkEiQr8vw4JAe8JXSLV.nnq..CXvO4VVaNjTCCCJi5NpniGU111xlAN3_JqfGDX1kTVtuCBqydNgLVroxtRu.yVnLzSBgiY0KLLWoDUTuQrSmS7VQ4Bswq2qgRqY4N63uI2HWkgOvv2ZEs7rHZEAorxSD9F.fY2EcDVQ7DKaaydXdbbuLQoSYJ.t5ckeD.S6MTWIL.gMVmHPm23V4TdsW67GBuLcBX3PqWSmaRN9Xam9wR5Ho1b7bR9hibXxN_j5A17n3nxM80YbbDQL2LKJJOTSW0y8En1X_Mbt3HFqq9Hh8wz0wVxZQD72WPEXeM6pCV98WoZBTCfYFEqvW5xM4ahgmHEuRCgdv7kL0LOlsFI6.nJgwP4mW8iYQgA9D0dForSBnhdRbVTMHfMz7LIyIrSyUHZ4MJEbj1l05bZJLQJr4.f3cxDisZMsfCpEXhdaGp5to0RKprPY.IVISquxlc734AkuXK77sc7yXiQdFvslk3.QnWEBPoB_8qrw8ETSe_wEJ1Wwm_F10R2qcFSDdnxJOl4vNjj7DuL.44iJrk9RHH_8w.V9mGF_HbGNuq6EsDYBaI6JheiTAbNrBJCOwrg8N6Ujac7rXlmCw4pir2MHrJ7FbV25azQEZmUfpS.kD1vPMiQA_jw_i6BfRewwhWjf6CgOjTTidMAKVkSGi7iG92cYoRibdHWEBp3pJ4XA47Y5SD53yZ5uLtFd192.8Bbito7KqFL51qMu5z563GLhyZTCaPL0ivjyt.SSnCXx6xIBm7DuV3q3rTReulI28skz.jVcnCJexkLaHyvw3eoiR4p81QfLDtmcQ9y9SkbirlZois_tVX24nDxI7miW.EHjeZDUMlLpYqEKosWCeGh1sHvVJG8v",mdrd: "e_zeY7qNxMyRvc9Bp4ybDN2rDUO.Fc1qwXStCjcrFTA-1739149101-1.2.1.1-CNMKY0aNkgWHxPUWe6c8iyWc2gan1GV4qfSqUaeYLaFCXx5RVmQHdDTpA8ek4.Z3WNIofm1_E358mw6bKBvN9J5scrS7YOmjLcDOvx.e0ti4jJK1orqsqzs82G0pxjrdKEE2P4OUT.9IoB3QHQ4ZhTFXfr.k.t.cZiWo5MjdE6YsMI6hFrmWvq3YN6o0dY9VsK5MmR5L14P00PeEiN8MgiNApKONc9PAz1PHi59mdtvc3vNL19TFzrbStrQOKNDXRjYWK5OyXNNGpcIWI5RZMQDN_pixuV87U1g7BoaszNL3C26HEck78wBF1N0cTr4yo5KnwbODx9OQxushtSFw3SXcUmOzMn0oBmNeNgLGlimFfWl9bE_eSQrvYiBWoE_LRVxusYeFX63cIEzgp5Fr5eOei.sHuBTDBDbp2lzeSJ4HtQtlj1sxplYplYypM5O78_1vPLukU.MT77uno6aA_cZbqmV9mA1vygdTdpUqHUmACHwuv2kSo0rtg5xYSs0YJbU8X0TpufXRZuDworkIRGltSGlzLAEeNZKAztiiK2XLX6.1kFnMjmyZgKC1NUOQKubgOk1dNLygwL4zzwgRZ8Le.3Pty4J4hBGoQKDOasFKj3PK9opHpqo0DreD38Au4VSivoeERcIwtdzmTcTJG7kXSFUc5hr35x7LO0dHZVxduxj3lL62maOi.cTKT6Gs3buk5bSWeiO1pR.sLKLccCpZCzxPf05aULvdDqllhdgZqXPNsJ2omRzuUt.Iw5YD9RCe1Ncwxu1vlE6fLzsLnJgrqDqHfE2xzOZGJExCRKg2zrSa5xfWuBKt8biIMm_Ukq0NyOnbvrOt7SW.Nq5ifcxLnaHurA14bKyc6hEyPwtPAcXu4zs9vPt7dMCnj8u8sHPBLv_BAwGFAUt1IIir3HCmv2I.IIX9DjlGWmPyVr84gqoEN3hfGIiDlWth3eJ5DlRTZZEAARP.XI6WiKMlfgVP8d2764QkgbKefZhpHMpsKleEG.VjdEOWnuUzTFQCLqNq9VTBki5aNaYrywdJk8e.VyV1Trpf_cnN_Z54ydZQ66zFbASu5N58zFCyVxKhESJzDquviY4PX.ID8Cq0C0Tni_rajybVskfraki8QQf7RM.Ugo4C3i7fzajJ0n1nygr0FM1NCt_ted8Y.PjQ6CxibeTvHJzn0.q4_k0S14qOUh6q8wuVu52jaGBZ29Ve5tvIhdeed55.Sxzu_FxLnFHGb4Eh0Ht2GwdJ4DWzuuZJC39a.qi1lYYsJtsWKpu2cfoXz0yivFQdQ.ClsrHgdlPUQtGqORn6RICkiYzL5fTd0V6XJbn.UeA58cJokt5lVNqNS1T94Qq0i.XgWWOhHdEbiNxEo.jmOh6v9paNWk.wTaO5QKCDXRPTdVHpO4gIeeYfFr86rJV5qEt7KqOgFQIoaKjrB9XQhdyypWx1w5t78YPvai7Ijl0iMT_myVmoRX1H0fO75.5AncBRKdG3Rc1mHKM8OaUoMnoYV67k6WKjK5ednQsbfQgJbLYQ3uPNMC65vgiFXthN2Ef6Dzvu8zny43ZE3.1BCABnIJu9xI0UfBmlHLYXctIgxMOsDBS8g7JKXyuAhv7APYJwssJ.eIFy_mDdOzzZnsgTplAA0ypPMh0RC8kOosL4o4JhlmNqUZ8hm.9Qfmaq3hFKjbFurCaNqBRb5m3v7MeuubmUqDY2MXf8V1v82Z9Tq14oLj8694Gvtlzzqr.ACBqMTX_jSIcc1TUbnxZVdyvn4Ozp5ojmpFBGmMhgfa_JPo88bTPaM5JhsuDUtDX2efLRG7AzPw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f8267cdd2a8021';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\/9385207416?__cf_chl_rt_tk=WuSKytTXyjYIOFqFa7sxrdZhEIC1a1GrWr3QeEesXV8-1739149101-1.0.1.1-sABJ73PCUg9n9xMyF34gfssP5nmU.5DcSgUFXGyhOc8" + 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