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://354084.mit-edu.top/post/5248971036

  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: "354084.mit-edu.top",cType: 'managed',cRay: '911042406ce7054a',cH: 'pfQZzBIEKdU0YuSTgL1XgUFeD2q3cs2oyBMObV3qjq0-1739401897-1.2.1.1-IS3xDJHxghXldHbgXHeVOoxVQEr9K8_mHQ6qyUL8K9fZbwHWz1aZs05AKRPkxQd7',cUPMDTk: "\/post\/5248971036?__cf_chl_tk=rtUGshl48AV0MP5T8nkMm23mZszZHdQd2KPv92sSycY-1739401897-1.0.1.1-hOtXKFP8pS1QRqqz8r1prmPZqiA4PIg0mteMOTHiDjo",cFPWv: 'b',cITimeS: '1739401897',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5248971036?__cf_chl_f_tk=rtUGshl48AV0MP5T8nkMm23mZszZHdQd2KPv92sSycY-1739401897-1.0.1.1-hOtXKFP8pS1QRqqz8r1prmPZqiA4PIg0mteMOTHiDjo",md: "JWIRGe4g_gloiKeqQhXF2BsPnhS1_YKWnsMAahsCFjw-1739401897-1.2.1.1-eIBaWbQCZsOPHsFTuvaHZCywrYAyutOub6sKOTsDWbIKZPDtEck5ovsLHF2.kI4ZIEEzNCwJaCHdIvmbxYsXGxMVOztRB_rllIQl0QQ47QssdjipuKHyY9KCabYmunqMD.WU.mbBcfmuHGNhOefLNd8H0YzUWE5xtxdblMgviz28fdrxwlwxz_6nNvm435DR4uLGsPW7cXGBlJxUbX7ZxiHnkI3NDZmIhcDBHLl7xrmJX2DCetMtnuE1rxGObam.49EGB2NJXAAaBMREKoUXDKuDHCRxMBtHj8gF_nblhDA5B3GtsKhu0ck1fOtfDfncWG6y1k6harvU.88xSxNMqrMvjMWftNnw0_dtxVLP_kez8imB7hkS48fll7mA9uyMBrRpB7EoZwsK35uio6dYitb7Hg__NX2WiArlQcdOf5CncPyoz5dj21xCWL02zDEkfag8OvnrMT8flR6GUEtdg2OLcvP6FpKRx3SXbpW4T4v4W_e6GqXgeoc45CvX04oijrnX.6jZ4fYiTls21cWjdafjwrmIXhJo4ExIBfQodzW5.sFN8aUA150ZU5UlPsVAGwdMEBGt.TkNCjvb5m9QDHBzZPGY8VvzgTxK3UUjzJfP0esz22iyuRK.4g7fYudofI1ubyQG9e352X0tgHBzsBk2yJJBQX5YkWEvCT32lvHqNtBrn0qsY2dUtrAJ2YH6Co9vhHQPbJv7ZOX_U4_k3CsklB1ZjaNrjgf9.9OTqEMh8XRl5N7IOuY256k.5qTLydJ56zTrWSk1.e0i7kxgM0KUE6OCXX2M2tyOa1o2CBV9ABmgP2nmh8WRGtIQsuqiUg2nFJxozaW81pGT0epXCuls6umL5nI.bj8169yAU7e6cinUdS9.B8IPigWWTcAl9Ck562Ff76NA0AdH9RZZAEr091bPQbQfBd0skp5DBDkAFB_JE2xVUkBm4uq_7MYc4qsXf0rFsemhdJyeRPFCI_s5nrg5Oay.KGBlz3nds2da85ZXSWvcYuVEenBfQ2k6jpsuDIz8AD4Dcfmm0aA1ZStW0ABoJpJ3aE_sLt4Oi1PLeqP57m3kuXmrgezNGUXNU58RXrOjzwjIRBv6vjRsBRFJ3YBjSKoTrYrHmVjBvDQPTcYyfwuyZydvtSKFomiNX32wgGm7HX1ii5BruKN.Es9nt4L7iJy0wuHOrmkNOd4uIxAE0m61eHfBjE8cQSqJS7tF.dHW4B16iSgHctBdMOij9jQHbRiglVtYyC7S6SF8kCWPAIWX9K0E3USiI8yeZDUL8_GF.ryKaCY4x1MlzzlGtjzmhxOoKbRdnTmUxFXc9BjwIhTpUwMwiOtEuXqEYmt3Q6MU3IA9XCRgj3ZmUtNPRw6GhYMjJ9WrFuclqpUEEQ_c.1mp93_yNdS83lSk46E2KGPe7FUIssXlklLEzfviSQshmylrzGN0rK8ULCWMUgfVsEL5AcAVlUCoGCNt0JJ1On_QNSv2fluqBsbVxzbrZn0UPZaNglHTCsdN46.4mf7MBYAJChkxEhQ5g_zK35zfYMKYQYj0ERYf9DgVdbF_plUWcm79nwo6iM17tQL4TTuorarDR3JbMxAKBzRYXPRUC8Viv6t6iiT.1PnCzMjlj1dE39KO18KEtfrzNvgY8Rt_q.H1PdwCUchmTDUksHCB0hxbj11.09BPRe0WDVMM2i7LzaJEgw07OobbNsd4oj6eK961x2Ah19kEoN1hQal19n4OfnP3jiZtTF5rK__.lXmDcKdB1DYtpPHduAwIf5hXn2oC65PjJkKYCET7iTEj0cpvWXYKg641GORpQnZxtpClKPxCHDnuK4.2BWyURH1.2v_r4xyeCiAu_cOLCiNyicJAk9vUwFwBlEh9eLg.sgqeUCs2Icnl8CuP42znDc4pg1_VYVzvZi7cn9SY4BoTGPcfQMIK5uKRHdJjHqHTaUmYcyEpN12gont75k8lAKHEsy1qLl0ctwdFuu0bjP7mC6Lncp9fsEwm5rpwhnAJ8W7BMEmDfIXNvC37gJ4b_vIp4AO4P8SE7EOhU8UUkxWRqDp3.oaqU8lLEP65uz6nekconEWfXObEFY8e8CY.oYn.4lfcaZHDaFlST6BDe1iXw_Fm8VQ2wTDUeGXqjzIPO4rKva6g98AkkHoh_b04dgOvf64.70ZM0bVxDmtSN0HNcHEoMqx9g3o.tOaPBiRYluWHdjrolUNdgMXMgVc",mdrd: "jq9kvQMVcEbMWYAhOwp72qiaw1q8y429uy0ImtJiqOA-1739401897-1.2.1.1-RWSB6tnn2SPZuQ5__rtfBzV3c._bJgdE5275Nh_OpJsiVpeRVBSC7BaZ61c.UdX_5aj4nUYgWRpuTXdWN7P73XuCPlEtTiSLljUigREn4U2HzYnBq6zpQtMlD0qAnUezlaNJQDDxZoevvU30FGGDDb1cTDAHLKaWsECQNmlyIiH_Yf1e596LPy3vAu_OwwcxiWn64YY21l6KnJoRb_S0qW1Nf1_kXCHkDVCs4nMGwlGp9BNM6CfWem9D7rIqXkwAqQrwXJ_BTBdGkpaZhb1APtOhUX8QpPiwc6lwpBPynl.tn_YTT3ex2JWMvvbcY.W96efTIPHSJJLXKz1ak39Ni6lhi3GtRZ.6IMx9zAbPROjTCoRAbw5PESZY3zj5Ntxmc7_mJK5DFrv9KCoSfzECoaH.vyZfH_QTWkfhcnau65OREzVFHmLcvbG9w21XLytgZ3JXi295RvUpwfr40v3bcGiundY8eVeDI85GXkZHVQ6oxyk_CHyNS0uP0Ts2DwvDGALI9ZUBp4jevWIkTA6r7F8fkFgCf5b.BnqUPzUnOc1QilPLvbfUAzYVYA7NkKsegc0AlyJ8hOUJOpoXA8xnhoFNLuSIXNPwEztijcP0ZqOntc3QCaJ6D83ehhC2wABsFmkSK59yJtowNsCaUHcEp1hXjyatF2CLvSOUdo7S0TQha49Tnro.kbctRjaOGy18s1VbAayW9xEXHrbwUJIAC7bUtCwfX903.EOBPufOD3G3fqKuY18uHn7Inei04odWJGKufPcWts3RW5RvRhAotWplQJIJ2KLT7mfpbLLpUQ6KzwF8Fs0ax31CMHGb_E3umgFhxwn2s9rU2UhoE7krixQK1nVJWnhRB2goXhFfoMn2Q8LtCK0Z5Xcjqgz7cMlVPpi5G2aynZ3dRFuPYRRbXfof7pHIGoJSTiY6EFy1orf7FGV6mzQeMLqi127thySDqee7Pb3Whw0slE.pIKWb.sh_ZZCJQTjyAK2qsyfAlja8mlgQxRFmAHUhgUBm3cstLnt2tYYUNcfhiJg_pRwkE5IO339rQiUl_zf6p53j0_CWA9m6oMmtyFf9pCegLGfeShsoJYUPl6nkkIlrXF5DWCuxyNvs43muv15r.WCV7sEwdsBvZPG5ZUo2bBbaRVFUeBeqdtrnH5XYU3JUZ0m6.URhFrvZWWSfG0oG8wwHfRPM135S_x9itifg4j9Dm2u5iMdulAHLC.EBcNOCffc6pLz7zDOdCpCj3CsyZWWXU6xWJ4mYQeccqUUitLAuTnUJ.mU9EzkwWKPBctvP3Pc.nlLL3_mWU5vKP_U9FFt7QcjcwkwjyVSvVOxcJZkMgZYdgJ1L.m_8jmw2OjyC2fZ_MiBi6DiRgSaqg4qiDnn_5Tlz8wbpupjZAwabRJT5nTRWbIPsu1l917waVt0icG0JnwoMrAFicLvKW1WsirbMb72JDUNnx3tmR0rYcU4oGTkbd3LIlLozfbrCEftrwjScnyo6JvwZVV8EL12mbFvXKcmbkwF8OSGWzXHrEEPfC4q.zLnRUrqX68QtknmldgE2ZodhX7VSwV0Zq0EoHmNunPBg4jqcDGXM_AtFJDeGR8uwA15W3LGSSw52crGo5GLfzzvaCLXIPC3EIayACVg0QrsjPIlP3_xs13GDrMi_yvEML5LrAw8efc1VVfl9itmppVtBe8M.EB9MND0YOlRICMCLqXgAhlGTBEok8h0PH.anMzKh0EQGuk.YpeA7wtkSa2FOF61QUOaao1nbQWbDwQLOAJgqJgSP7Ip3WxefvOM4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911042406ce7054a';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\/5248971036?__cf_chl_rt_tk=rtUGshl48AV0MP5T8nkMm23mZszZHdQd2KPv92sSycY-1739401897-1.0.1.1-hOtXKFP8pS1QRqqz8r1prmPZqiA4PIg0mteMOTHiDjo" + 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