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://685090.mit-edu.top/post/0471293586

  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: "685090.mit-edu.top",cType: 'managed',cRay: '90f3b1a47e193b80',cH: '7uhQ6mUW5NEoGMwnxtPPlPfLfUy.y7WOW2azCJCGYPk-1739102372-1.2.1.1-7Ek38Ji9Y184YpJESTDrLDwf8NDGCzBVRfQcRVzF3WeiCO5LBCZ_C1HkbUpCWju_',cUPMDTk: "\/post\/0471293586?__cf_chl_tk=lBHODaapX1RwBrL1YkLtrCwY_vlbjtWPadFtrch6DRw-1739102372-1.0.1.1-G47Euey0agcb27W569eVAn8M_Rkh71HGujRQcBs5Tzk",cFPWv: 'g',cITimeS: '1739102372',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0471293586?__cf_chl_f_tk=lBHODaapX1RwBrL1YkLtrCwY_vlbjtWPadFtrch6DRw-1739102372-1.0.1.1-G47Euey0agcb27W569eVAn8M_Rkh71HGujRQcBs5Tzk",md: "TU0zpnEPloWD68_Icbp.cfs8JLX2dSTJyl6590qiyCQ-1739102372-1.2.1.1-8NtuVB2k_hWIcxsqjNX6.N3P3V07Kn5saLXc3__iFNjFbE0_Iu6jWzD.IrsQycAh6bcsQfmxJ.d1oXfBVR_cK_os_K5RyP38K1zb1cMmEutUphEWqaDKhD0IoZw3aDOUziuqOanjhkoS1B7fUo07NVozfJEQb3xVD._A4xBXhCz4oZ8Rhrm50HgZKQxWW1_fY0850J_zrFeeZ9n3lWReCxFfHofAr6FweaCaK7KACA_UumQIp4X9GFolob3yp_s87F_rwGXNZLmV1yF9UEdCRH.SXooSOV_e.7ctuGWe.K_N25N3DIYkF3Gy_WX9THEv0bs83Hy3zyGW4p9kk2luJWWQSUl77fFgBSSvM.R_CwU7Hec11K.tea3dIKrWrEQTfePDqAEJwduuHS1CD5L1Jl9SIsQ5yfMvoyYwqbKWTnrB5sHaAhO5Ztwf2N96S.qyFDBSfgfOakMqD3jDR2hwxREBlL4jEbZZJG8XdqrF6E5cjuPSrmw6V9O_MqwaR2S654H4NPFMzcdbsxUzJai8__9eNyjMjE_rrrlRPYdvcLlbmgMJv.fDBRzFOPtoAkq_nw7VYamu24Rlb.TtxJtctyahryogM.edvFdCTOeBA2XaiJSIxZYozGhKZdLJR9ki6SfHddjrw1_fp2SdGuj5C0egtqOSXzLCKFebWKFcKzC0jCFHBUgQQ.m3wWxU2BtbQXc1bn30spH9wlG6X31b5a9o7Zc7hfnGgHrIx0kJE2Qt0YgvxjX0CBBlGHjPpm5ehtG1JvFGKbFX.0DDaFJQDlNQR75eOYOSoF1Lq1gNbMecv4pWy8WE5CuC7u7XtdtwKAOKGZsoaBPsnXqgvOE11prcwfsfmjkdbz69asXsV7ZcHn8iecUycMrL7WYW.R8BXx5nB7U77zv1pYG6zLUo_IugAODErl51bGu0hJskzYbzRnHrjjp3VTWFLPRpK1Rutbem5AxVwLaQFR2wki1OUdh0CmBWkM4dT43.lMzvGBpAM2awlVLccq1Os6dhoqa0wK9q8hnbIp.OQ0Yn0O3PP.p60RVO3Xfs9.a8s4S0di2YmWqFPVJkZ0uJfkPezi5_fwDraJs68EgWSlj90HqPCVcd6KMtizxHleoRNfMgqGrHiI9dHjtINjSh9sSdklO1rdcT_HPI6rGIm6Z7li27KmDfeYh3uHWwo8kXUK.RPU1ckLTQ7HZEpP4rGUmxKujYrPurwnqoQVqQqB1LRdESNxxO0GafxtPT1sn9nk8zaizvriyW.GZQwEM9EwYcQIq69fM_JVx3QeQxhjhDh3s0ctmY.v3_mdnvjWi5x1f4fwXs8U1Y6G46dAfxEPtIWkQ3_qDcRhy5Nnca1s9_Q2ahKb8VB9nITpAFaW8AVUy6LTOjM1BT26knotl3lFlRObkGGPwe7oQmaiKUcQRPTVjWUmnzn8po5zCXFc.0t3zgHAw893vct5A7Z8iy7ST.7d2YgzxDEdHFaLue_ujJIaQ5jsRu2HSqFnexenLEd4q3FczNvcWyf1oGZ3ZztP_J0J3CDxQO3jkk8ZpkKqizICK3hdw0PScgq9x.FmlQic1Za973PFDAuxxR3hlVbQ9EPMZfAcTh2j73mYHZOhMX4TgKuNt1eu91_CJ5ABt3tDEf1J9v7QW0H7HaSPvUo8e3mTnGZFXPX4nYiI5n1wqvBgrJbVvkkq0vit9xHV6Rs68Qm2B5ksIC9G9C9EY25.aYwFtiCSB8bucZcFCTjXBEyjSgNiS65KHHWo38Ta_0Y73NTovYApSJNuLXIbbwPpNA4K_Eb4K425FR1y53dFpx9zH9OjkqZOb5i4pADLPx_dFDIOptu1xx99YyOA1cAyabonYvV27uP6E4eNKDTV25Su2YG2Ua6axucn.wJQMp8zkZDKtJVlegrwXAT5OORQqI.ZbRkvUqg1XasnrA0V4cPJsclXFxcn1BwTrEfX4.r_CMqAu4Cau4q9KzuvOqy38fpiCYhlHLSiIb.LDNIPCgOVlPnE3omCTxyzJ_GpzfHNrQ8z3nch_IyZGpb28XdWWVJkN0HEnK1TSkmz1tTipV_GHXx5vUMiZHvt_Xoxy3L9MbZFiyju4A3eMnb2CB5nl6rM9w7mgg34a0._KiH0aMgrNxxp4_WfcnYN6tJO_R40sJvllsI0cf1gG5mFq6caCvQuCxTbieujNa.9yLRigtz9JGgtbTQ2VTR.XIYGwijULIwxc",mdrd: "k4JPjvjONhcML.SW5WfQsfz50TP4Xv8WsN2K.2qwCeI-1739102372-1.2.1.1-ERFXkQDZ17L4miS66oeeO6uEWNpseIXEXuKWEHBUba_hqavxuH7jfRIg0VUE6CdBvaTVEYHTyFrwcSIHZhC5jNMc0xWH4a54udMHSrBjYrp0FBZPNzsO9K8jLwt4mdmnVVFEwn7hO_hIscbst610YmklIrs4LGnppOjRN6r0G15HZL_dJqeYLL09AeAxI_jTtUuFcT7Y.IFGbb6zonrtuSXbgbNQK_CfBUAgVcQK4lU6yUor3EHzlJXGtHh1y5hyrQxjaNl3Y8cQtVPFt3jxaQn.Bv5QAQrAGimfg17FvNUsisVtHwm0SLEj33AAizLwtPRnCxjaw9uZPRync4InDcAU4fEsjUj1pUeBVzflqmdBMt2J5iI2iDQSpmcvVXdjWoqAsUI0OmqCfAeptDGzTDiRZ80LRoWreDx5L5.5O2qRbrmFwy7KXE6JzhM.xej9lH2UXc_Ydnvde0Y2RW_Sefyvb6_oqODqMCMPz2Ulk76dL.7xNpSYLbikEcWlOm1hun.VCekbPAk4uOGfFcgVyByeieGi7k0919Wi0zkT1pYxPu7hswKl2U1WItWS7NxWrcL_qkTwuf9TTdhIE_Bk4yFVGJhsZ61lpw6flTxfFJzliBrXixgpk1gUCquDnAAzeQwV35TWoOjmJmco_7lRoeBXJTvE2z76BBt_lW6umqrGZ.ZR7xNA9M_8SVyFVmz.iN4gTkIWv5SlNf1pWbt6wpDCRRMj3goFkXLdI3HgKNk8IVnxdmpeBM9l8bLY6NeMzCGH_0eT4CABjEvbhFkm87I19Xti0Bx7ImS4R86vX9L_xoWDhz5eIX_b3ZVdgdmpCfetbiFh9EHj0KlP4cp9EnleaLM7WeOgsBbL.5uWvEI7ys4MfItj5dbfu5wmy2fZHWQ4j3C82eCWNgzw0na0R_Ru2keywro1Snnah8ZCgX4bjNj2Br4XqxRqp02TSlyxYtM5NAX5uw.2rxHDdZU83aEgStZpEQtzWpzekIZTezvR2.4s4SD1bHVNW0kW0CwMM_cX22oTLfBb0LE9MS26Sznr4mFOKnXHTHrEswdCN5AeyySvtDANnmzCX2A0yudcsnPBP2ygP5KNah7PTTJ8sRKgSkkKIG3fwpRiPQiF1_bZA03kF79B5GCMCzCgnx6tOqwmw8HLmtHXb_04RfdXVfdhj3habZtD8mJtaT0jZWocMwTYPZCKyMdb4SSscqp0PeLM2T.wfdpywfBJuzbFsxK2kWBL9NrCOo.xkZRrylQ49gWVBN0rdlgnUmTOg.rpUB4bqIZcXV_l6FQnSoyPwdan9Zgz2Rj88PL0Wqsl6_L.MPrU.LT7lv7NJtklRloMEjIVJNNDyVWNqTNZ5Won50HHcde56fd_zaTphZPcL70cCGrk7l5W.Ue2.18F6G1scHcIGMPMS85q1InO8DWP46syKIaI3agmifony8Mr9VhmFzps4HITCmCrS6YGi8EiPS1Fm5QllUi6o5cjgewjmB7JsTWL9OJ5WiFLF18Tjo0QJohAlTMC9.m.rb2MUe2ekcEI3RgVdH2fkTMgz_FWgFKBvkZ4nL1z937e4IvxoiWl2azZ9o.4uRAzQOBHY.eVO0Em5DwfcLMYpClObLNRUTBiQx6OwWiiX8GpYch3Edo6w07m1Wn6PuasMHSiBrldVf9Y_Ywum4joKzYXEHutYIolkJ85DNrJ8TggxR6lwn8AVEN1vnqlw7wq55Q3DlpqjCsabqRuPJtDbmxpov3OWrhvnU_Oxg6r9A8vyXBt2.dHNpj.TMRCox4k_a3pz7pi"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3b1a47e193b80';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\/0471293586?__cf_chl_rt_tk=lBHODaapX1RwBrL1YkLtrCwY_vlbjtWPadFtrch6DRw-1739102372-1.0.1.1-G47Euey0agcb27W569eVAn8M_Rkh71HGujRQcBs5Tzk" + 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