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://572877.mit-edu.top/post/0487936125

  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: "572877.mit-edu.top",cType: 'managed',cRay: '90fb311a4b7957f4',cH: 'dqxDXM4gV9Z7RVsmFh7uBP5PdAQbf10S67dbuhDnrGo-1739180993-1.2.1.1-0KRXpt_4wnglA94l8EeS4_WM3IovHJU.NIsTNFukOowpExLBDfGIFbDIz.9MWewx',cUPMDTk: "\/post\/0487936125?__cf_chl_tk=pfcxj4Lwcz4B8ilKOfBEVYvoSm8WsgKHOEq.FfyMMrw-1739180993-1.0.1.1-W0w6SszTMY73HXYfyjCbWgBGmeCcAxPsSe8ZiG_Qyq4",cFPWv: 'g',cITimeS: '1739180993',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0487936125?__cf_chl_f_tk=pfcxj4Lwcz4B8ilKOfBEVYvoSm8WsgKHOEq.FfyMMrw-1739180993-1.0.1.1-W0w6SszTMY73HXYfyjCbWgBGmeCcAxPsSe8ZiG_Qyq4",md: "sfxq7gRkjmS91EA_p7YVNLKv9OJBBYxn3OJp1jKroOw-1739180993-1.2.1.1-pxf6fJ.L7l7FtmC4lJppXlBNuaGHZTL9KvuWfM86Z6AqNB6cTY1wtXXWZK_BBLWxZxz3QTyI3F6wVjwbGOWlWh9U_AUl_acpIAX0CnlHIYK4KrLkkqBj5yvhwDTmnMJop5r13cESzn1ngFswtcsdE.4BVPye2ELrSYMfClhb0E.bqKDZCGi4IBC0z7kuq9axUOMwfR04vvew7_bFVeO2hYSaihYSGZ4AgsUkaBUYoChj1KXRz.DMSjQKl6tUVfELgLzwB3pYJgeJZOqfecvwfFPTGajcEdZrLgQDuy56iHgmpPjtbLNZHqiBr80hKYpF96yecIMtSgbTHuwpJDhLU6xmM02L0JOPrGHG70AWAhcx6xK9UPciK457VLJAcPDBZkB21isCkgMpf98uwX3zO7w_ggHd.oA9DG4Px6Lonww4lcjk9GaTpsAwxpC..OFTyC.XAMeVlXh5Pd044OyZwoLoMCicvX7OfSsUeCIaUm..xDU_oWsC6yW2rvCAGh9l9rJOhSH1CCpsJKnbTq65ectUuzT8dCWINXderXXMr2zKQ3ca9t2fcEMWg9719iCYt_GU9dw0QBUKLZYsSwqQGH7O1Ocmrfo6qAlkjrhXzsyZAEQTRdni8fET8GRWTsVexG59iyup_r9QYpnats7pY0p365B555NVFg0bOgZZ543Ko3w.qLeLRCFcj31_wlchn0DQ2SK4VVTgh4WbInM3NFd7GnB1WvwqkXpB6r32PS1Wfid5I1WxzF6b3zp4rKhm2XZff_HubiUJ9o5Z29jaYEVYXXmRGs3QTAN50JZ_qu8Zd7LMeHuLMRNeBmJeXpEjVjrmCutVT9F5yCBPXgqXlgq7cZkE33bnYb9cTAQhi9fuhszM528itjjVLyzKLgLjk2Eag32CMhvr.0sl4c76YCO8DoIIgtJmJNvLgGkf7IwMUS80cw.d6.yIWT4cw7PWYwe4BWj92Ga27skza5lSztSJA.jTqPL5nHbkztzRkVJ80a19jFk70VKgV6HIyF1QRA71unTWFw9w153B_0lmgrMvQ_0FLg49JW8xAXD8w6jajq7UIg8GVZNwX9tu1cHDUD9sk9GrBDTGLKI.hztWX4UnvfeV_zEBzG9F51wxX7T4oBhq_9_09QdzWI_Cl2UR7wfZsRrYA.TRyERhN8jj5gCBjlh6gXHbRtuufQWOO_0vR_Zb7pavJTRZQGzWpI0oaahq1JatDxmaqk8Fh5j4WvB0kAaNs51On9H0raC30uMzytqH5JAtPLoAmMpjqI2Z_1eWP2Rn6haNZbUVgbDPZIitAcSpqoQnwykvvRiSBEt6afpBBlEa3haeGyhNXLWFvT_Y6btSaqSJw_skbj.7RngVX.Rlm6tfmGj1rRIYm5.yZ_NAam5JjdCWmh.zToR1MIAz2p6ehOBY_aoJ4cfwpvW.CvGcZL5rEOro28p.8x8wRK5Uxv_5yBVebe9BX6uIw.cU7fMq_fblstPIXbNghNqo0kZNzps1nOT0lG7Jp6JygGqYB.R0laR1JXaS1lvTuOZ2zawJoZDLX9aHE.TMpsVqPQnbuzMX.K3QFTvo0p6.5pk3Jf24gyjNCB8ujWzf71LE0AGLo.UMOXYs0I2TRNDqPpmuFFmQkxD7Q21kHP6FoMsQCNTOcdsIOmu0ESS7afdx6oBc1pD8elL3jZ2S2jzFl7yNVWfOmppOfAIdI6GIjr7J8dsTeD3zr2LQejmWXU361jqCtMu4m5ud8YYXjPyLi7_uxG7XpnJfYeo9z80F1oIe_VW5If4XLqEQj2CJEY2IdxxnTSpY7GYCp5jMbBHqbYo2ysNj.PmA3KES0IPBPdkXJUvc_fNeSJzYDGXexYrT_srBrSwzH5MrBJwXRs.AErYPYKGoieyRAk1brmfB8C_RSKaIj4fx.4GfPQ5PgvrHf5sOZSq0ls7.9J5ohBC8a1zXNDOrvm0CfE_AkBiknIrMCp67TkMB7IHnUseRy1Dbj1Wt1S9d4B6olBWtYRgCmMLJgztjgr61gAIiB8MpiTDpZ64yCUyMpPrixyIE74h_8ZXqb5PkYigYpiGVT.I0mYiCujN8Ri4VgcFgRysLq81wwJ7k46AIt25JX_4RzP7H7lwh447ynM.Ba9f5G6cR6gIZn9qlZZayDXdl8mX6rFyFfIS7h64iEoQmGpMKz9VC.yGIVDVvdGZY5NDovvf5CZtOQCHNmeC1IZr6B5k",mdrd: "7eGohd8_EpGNBnP5UE340YQTr5ntCueuBRYSoE9QrkE-1739180993-1.2.1.1-JV4dtqwVlzIhQmnqrHu5V8u86OwpjpJ69iLQGMxUm6MH_8485fIsEJ6sEo1Bcm41q2QWy7jawA1QSwWZTYq1iQDtdpP58INossan3xIjrj4Ds1RRuFEx.9tFxTmCpzVwfyqVqHq41cYZ3cTg1KAzHKaYWNMJrrLMk7GmxeOLcl3pAlEz5D3hljsy4.dkEa_zB0PqHSrUdlxSBf1lrd38sEGWIZ2LkBUGSziFBoUZe7C6b5t0D2MC8aEOelFqwF0ApPKcxEQ.djrmr4twoMfyUILtaamlsyYib3QIkAYv4rSmu0lh7c7rOJ4KWYHAh8hAu0YMPexg14RfLCrOovzMB0_KRyK5bQnbrPdP5FhXGOG5O9KGSiA6hkUcp88smuwDgl3AJ.sbw_x6lC8d5nFhHfY8HzAcLGAm5FtDJFtrXe3sAVPOaK_f4fzs0bzHQRUxjuqlc2RmBA.TK0rQViPjqJKL2uxdZEjAKoArtX9d_hs4RBB0oUyMkQDIIMqFFqQGXLWN9tZvc58e693M5T1f5CeEkfHE28uvchRCIL2XSHlgpcvJfhUQqBmnp.4.V5xkOI..K2STVapPPVyQ82aVP2ab.R2VBVJycUKY3X.CoG_8DUZ4KlR4J4BoBYNbOkT7PGpmYn20EwS1jGEy6s6598PKBla6ajGXBdBu3XGRXZ.sMuySQjZuQZlK12CkA1g6MEDfwFl_ARrClK.JtJRmOePW9JnV7GbN35xjzBLceP9EiIAOG6OuTMe.vD2pE1rvJaaLg6EH95MqzfBFOU3WcqvsdE97Jtf7vs.6oYdIZWcOLvEtAeNHTZ5DWzg6KrIKksG_AcE2A8X39nU3YDDrcXWQs0ac77UQLxCaF5vi4.3namU2o4Xbv6Tc6X19ZMbyQYiRLpe8nW0cuwoDhm6i40QAlp1r7n.nH.3KwHhLPnXHUhsp29x0aUHAPKO7MZggddL774uJw4SvhM1mmV.6FgqV5i1xMS3RzNTOF3LKWpSyh5kmKXhm0ctv1zyFVAtj01s8XPQkjH8m.kN3TBWSovo9wem.Y3DUFVAjAd_75DBCJqlsJlotiIKxc2FH2rnmxlLGJHx59hw_hKDH8JwogB1wpml.KXBQ3ebUK5xhwyuadx9aYUN3NVrs22Gysm8hnh42hGrF6Td4n.RLDtZFnaYRtnlcQxSgh_nXxk08ocunbRVly2xi6mcJFbqx1y0g9n73LwOnevXFnwgj7ZM0WivvEJjNUTJgA47NjZm.GamZBpDL9AMjf9J.nwHnMdbgaznFa21znNzIhf_cqwIVooxQ4np9uuxuE11wYChUJ8uIRLuukx1d6HRwps5zq7TjPeTYM5srrKhscOdjkx1.e_Mogv3.SUciAzXi2S6fBZ45d0EkWRNtxA.ft7jY1CTJZ3_wl_C6cpSj3C3582w35Q9FOp5YEJhC2YyAF8tt8rFtmu5bx2yVP4UWO_6kN3TZyPPRwx77tu54TOm3cYwVfYGNInLnuSBlzFyboAdxsaw_sdIKG_RZ2r7GE9bqoRi_6R32uvO4EEGreBtANB7eJhxldoLyxnswhA.dspCsGwJBQZzRpeq2meJ3wCWSC6vrpaBbeFoIND2Cs.BqsD6_djhcO7D8uWfBnOvBYyPy_Rrf2sNe6OAisKolAHtOar_ipCs0R6c4S1iZLJDgY.zMsVwChRX6TLtvlZlL7BYLH2OTU15LxIyRhk2lKmaitG7xNVdZG.QGCcNKjwbhS3jKipDTQa5NuL6No.xF0ODVHXm6Jf3cpC2xX0pvWTPa2quL"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb311a4b7957f4';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\/0487936125?__cf_chl_rt_tk=pfcxj4Lwcz4B8ilKOfBEVYvoSm8WsgKHOEq.FfyMMrw-1739180993-1.0.1.1-W0w6SszTMY73HXYfyjCbWgBGmeCcAxPsSe8ZiG_Qyq4" + 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