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://407571.mit-edu.top/post/4687590312

  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: "407571.mit-edu.top",cType: 'managed',cRay: '90f75ecdbece2d1b',cH: 'P4q6iltCjloUN074ipwSw0TkC52QpPeIrKmqele.gf8-1739140922-1.2.1.1-em0SSXN9nLbMMjOXu14nfpZRYx1jDBfJ2yxbmprqNO2Xf7oF1znQPiBFNB3LO7KY',cUPMDTk: "\/post\/4687590312?__cf_chl_tk=HDgbP5STjVHwS5qw0bmT.gF0azmZ3sMb8d1LeVIUJCI-1739140922-1.0.1.1-Ueu2fFGKuWsVmun45kY_C9D30Ey6dOLKyMAGuCgqt10",cFPWv: 'g',cITimeS: '1739140922',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4687590312?__cf_chl_f_tk=HDgbP5STjVHwS5qw0bmT.gF0azmZ3sMb8d1LeVIUJCI-1739140922-1.0.1.1-Ueu2fFGKuWsVmun45kY_C9D30Ey6dOLKyMAGuCgqt10",md: "isjaOMQHK0HljuiBOgqpzpeKkq1Ao1BSEmwtD6WVX.Y-1739140922-1.2.1.1-lyVSdGQuANPS7TIWrYxqUJoCW21L7OFoOuoqHgmCUtHm8PHOKhKvCxqwmMSUgVINzb79DXNk03kowGAFBCUJJBJIs5iPtddX92LHrda9ndHUDd7txmQv_w0Qq43EV_pIcPkprB7a46lIbzr_G8Vl47a5SJ_8pX3xcEWW2b1e1RK5WxkEN_ggZDwbfj3Rygbf1SFoHUTnzqf.w4ZwEUrvKoMD0Rpb.mj78OX2Eo25PIuWC2bzn7ONqgxpq1pD4qiEvzouIAxQbzqC5AWsgBaCJ__9omuHLamS1A.VFr5gQLYEO9BG.5FActSghXMDzADAiyLI5SNirqjfGEMZZCB8CU8a1i0etxE6wEL4vmROpI0EdFnp9SDUiR8.A5CcOUSdpW.yDR2_PAJ6QLOk0d5aqOwgfyMJsLhF9LSp7p8tlVR5P3So.FYUZ4dApYW8iUUXhTXnFVLdmlHx.ZG2u.4buD2ZZImcGZ_HscdcxjiplAUL9EMwj5pIHF5g8JhqQ33bRh77ApKfA3JST916uIBYh8uKwVQHssoDu785c3UgJHWqcrpuA6DpihTwyVOUHRbZHGmd3cAUmhk0Gqiq39k7JokT8B94CG0z1Zxwf1Wt1l2WudpDCXw9wFyZJ_BllcBoY9pHxMAc8iLTod8YW07BnV93VTfhZ9KTeOfNe0VyYoFz4OxRSlsyKC7D37Vf4WIOK3.VWZKU8Xo7Fz5ZlPWR0GryqmGeM1SCDol1MK_tgABWLlXxoO6av.QX68DbgdMw5oGfVwbba0ouwk4lutQsPWVHzh7B6aw67YgLYwlm.0t9c1taR3N3NPjUjgY8ir2JausgaJRErUU8cbVSlaTzM0Pcw7QnYxU62klLU4BvXbC6lyrUqWpXV6orfysbbRp0VZMqUEEk0LbgUw7CsFUQD_rbtqfKpT7WNKQWTcl9L0hh._GpmR6oNNdu0Vs.ZCpcCoWMj_aDTGNjndUCx9.MCf7rNEELLDbZ.B.tQW9NdD5pQtiDDpV3I6ojj5H4YKtj8wnErcBpdxZZXi8VxF6ZcX2cfhBRI4zPxNZbNr_0FXGkqrxeSs1nvVSVkP7q4zC8espvCReLdVi0t.WXmdv7up1waI1rh3uNh_SHRf3PGQTRYx4mdglnscT80KFfJLbVSywx30jwl0sPxoVH7qoiFOlGp2jjwrFpIWWXilKS5LLyNelVDMag_N3PUCE8UvYUF4UrV9ByndhQz7QNeKEn16r6bp8hKdxb89h0Rob8NJX4dZCVEPpaCx6pnCf4RsgLlGtAY50bYSbQLg9Oo3oeuCO6WaUjwnE849kZG9Ky1Le7wa90.FhVMSSRLfCrHuYDpu4xWSipodiGwlapEAoCpclZeenj_pBQMvyTbZZuPQu8I6vDWOysdfUTWKPB2A_MLQ1T0YOqi9FVqaEQ51FqPt12saYeHhwaKVWjVgJ.Z780foeujX6oNS0Fyi3cWW6.eBrAAfxOLBhyp9Hs2ZXytSZznhUHfXZNwtEllmWR8vT1Z_TJU.ubZTXDtHWS1amLXSXyNIPdT3cgOiEJQzTpyH3sqTclQi7NKFfgwSAKnDvKkNlVNelrXJQLk7dBFGzEnVopOURGSUvNELPTlyV6hrdHywhGSWhR7aTdDtuqlsaxWEJewCi6bP8hE9eG.BeEKnMGbUQ6c1DbcFQ0pwA2MYqMtlFCtQDuhLoxu9h5JXvVVlYSMIefgyDhXRzE.I5W7ZTyQqvoRmZjFfXgYP80vKE2E.ON79R1zQgMpfFRPUtH.2_S1Apf9dM18WRXVqRvzV.nGgVAZW7FtEtROzD_bfVkJDaKk.ZkcVwrvkOhPE1ZoDHkicr08qjI0Qn83raIgk2sEttHfb38niaDzPwyHRjMAI2onzvgKZl0LyFoS418V1IWmKVcMuAQQgW8xonIFhCPKkUnP5S6HtC.5bd.evVmyH9YeV0u.bl2wz6nR5M82b2Zb0cwItscn0hM1udpL80h2h.HtAozxdiQPN05WPPzv74Vy1UOzUxaJebr6Wyj20aqfverEIxkHtSaqGycfklJVIVvLBi9TEbO2MpyqN4Zg9hbcdjz8Q.o1nyjTevsSnzn4nlW.gBBU6c0qINgTrqiV2_YajPkRlAc9TJON2P51GKL6AerQrVVLcmAWiflmK_x9odvh_ZlRtR1m9LIGExbaz1OCkcJ64wi4W3tEoA0JV1FRCDPnbcBAVPZX3c",mdrd: "3W91YPg9qmSLBH2ssyJ9UtkCzoUai8y8AstrTITuhQI-1739140922-1.2.1.1-1S8iSntMUxuU.NBF1AiCub0IGCFoHrDysTA06iAABLEUIwJT8Yk3b5PolxYJpNvVlyCjl_llGzn09_xtBHQu_XVI8J_Ysajjz1KUQTMaq3d7C9hwLBfeurNsXD8ZDdaepFO_dPRaUITNoXNEKL1O.TsiW7aJWADDFqhVh_m2Ai1BCN1oj9IpFym9qZu0BLOmgansApAZwWBAvCOKF0j49K2JD1RW_lAFftgaihuZjk.6tXm9C38HxLliNMXKDogYuAIeLr8KEoTLfszFjPakC85fDseYGhztr7oxH01egJlf1ndZqXOT0uUV4TZZg7BhdiOxanV8sShkEHwSJi2ZolgnNCMMDnXROXAeeFAxiuLihQbmK5LyNmYiudVwVXjXRqU4ns9zInWr6MVJEy1g2UcA5Vn2JRzMY38hD5vxPFov039.AiIYD_IaF5ULH9THgpPfQb8ZoVJ8E0JljmmAlYOFoweFAzOxwQROqlESvXWOX6s8Nw5Lv_Jy3tgbtJ9M74D3sEHUh8SdzjCBqZoHThNTvY_dRBx.gYV9uRDrpQqOiAwALHcuaTp1BpTlr6xloQ94memmiPTf5MFLSd9moQsIZuxOtAbABaI0rPL6ivDdiSEykBUZzwtiT8SFbN7vU6aK4j_ou_jyydAZochFJx7AJq_hJnzCsSm19eHdtmmlxTeDMp64TnUQvV1ym1nh7bku74wcrxlC_car1.raPBrNlrig9mNJmepxgGtepe5tOeqvLhLuc9mBGSk8LGpUjgQougDx5knYqMfoWobFhBe9v.UzuB1EX_CnI6VZ2qhQQaTZBMs1pMcEEvCBPeMz5RszOr8BoMDp39MjTgdLvqx7JcQL7gwe2JYQKO8x1zLN_CivER7p2BIGAi1VIgyZh87mWOwogmt4W8wQdNzMbe1qy791Za9hXQt9erG6aQaLcyH1dtbqfWpSYv12JE0Z8sZSoIr08GB7XFrGWNfiZnU6AMplK_q2M1sRqkZttnJhwf79VKgIb7W2vD_9d3FkwYz9jBn83.YoRhLjzNOJHWQTwbk2nv59mAeSAFg3cZlFsY1rrZeXpHKJkA9NgcHd.a03WIvNUPiFQanhgOAHLGwXI.ND5pUGCyF1YK7_iR0Hge4994PCZdFFLgRvjMeHUbvAy.XCPFMHLBmL_65eLK7NonuPnr7SWxa48vcVpYOCkdt18llOeoN8CX1o1TkWi9iqbByxGtYK60WrGndfdAWIwTuYlPUauBCFO6kNmcEt2Lh6F6cmbnQHB.GMoNBzzgYkD1bvw2xOOmu6JdqVwFeA0YgU8Lh849TXgo_NZPu2QRNKlMptszdHBwexM.fBD8QBbfBP_yP39XIGsUxFbNcPPzg2CI1wLHIatDYkYq9JvlMtLK7AGjJz_.EsIa9uvvj8Z13hlLBeX4N7t5CxHAg1kBoDoW4ksXjDKDcO.fuKzoW_6S_mofo2cI5DZxqJdQOQBk7A7sweXRM8Zzp0QjxsstlkDEjQk3dJpsNvwUAbILAciMTMSG8lNQayMW.lSWCm3tkHvU.hBfkevAqgtjo8AyclCozsgxgMc9mVMjLFSK1y9GPeNknb5VkuGvi1f0xDoL9xt0BXygnFGBmVmkso3HdqX2Gv5etIqy8v99cwUxeis8sGmnML_kA237TUsMhKAilX.olfl6C1CjhsYC14Fp45DcCJRVJyFjTPsuNHFr4IRj2ajdK1XbMrsUT7QR1zJKOWziYweHuj6TrkgMNgSetAcJNj3fQYmDWlLhm2xgkg76gVNp.rXk4tCUl5ddzyR5YnxTgLH2aygyx2IA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f75ecdbece2d1b';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\/4687590312?__cf_chl_rt_tk=HDgbP5STjVHwS5qw0bmT.gF0azmZ3sMb8d1LeVIUJCI-1739140922-1.0.1.1-Ueu2fFGKuWsVmun45kY_C9D30Ey6dOLKyMAGuCgqt10" + 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