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-869869199952.mit-edu.top/post/1504876239

  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="360"></head><body><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-869869199952.mit-edu.top",cType: 'managed',cRay: '94bc2fa3ab7dd6f3',cH: 'OSkfg_Xh1YU4LvxwJABEmDbEEvHlJNzXpweOFrBGtFQ-1749257749-1.2.1.1-Sx6KwIumWU8sZGxZbRBimuqkk.4auQdOP0f6iEy7hlUVCH2lw4Vtnh3NDhur8KO8',cUPMDTk: "\/post\/1504876239?__cf_chl_tk=YRzHnDECXLhogpY9ZOZFDZPoaR6RUZI4hPjK1XYTEX8-1749257749-1.0.1.1-sJ2N17WpDdEgztnebQHKB6gDKjPnLKdVv05bycM9.Ew",cFPWv: 'g',cITimeS: '1749257749',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/1504876239?__cf_chl_f_tk=YRzHnDECXLhogpY9ZOZFDZPoaR6RUZI4hPjK1XYTEX8-1749257749-1.0.1.1-sJ2N17WpDdEgztnebQHKB6gDKjPnLKdVv05bycM9.Ew",md: "MCKpgr_rxHVadO97hMvzZxdIpSpe1XdGAI77M7wmqxk-1749257749-1.2.1.1-M9MLCs8vEzDAWLqluwthHW.02PGhGsdSepntSOmgx6EIWSw8quAErzR36q87i3fCIjXWGlBmryBwseOH57TEl9OxD0CXSGw4zIJ4a72NkkDUzfPKyXpaB5MDcjm.pfAJo78vwT0cp_UBzKCKalj7PYNXJZQCpTT2eOKNSem_2sZKtdfz5qpubLr0FsdtRBTvSmBxhCAQgmwcGVlsy2luYHOFyRd3.uLai8zQSE4F0aoY8V6splhaCvXCPwkd7.ez0jHuYirySD82_qQ6Dqp3PilEn7lDSo8m_uCk_UkqSUrFCVKicj.vX.2X_8Wf84y3PDqrE2H12xXEqd2i2NSba7T5h5tvFZtnnyVh_jpd9QdvB8N2cX.yvSNoHXkVT8PrmkfyWt69_WOMyKi75WF8fwjrqedR4XQ5Zl3i_XJjuZrS.TzC2TJRtRyNOYJyZxxxVOGseol7pkrhmrMpcj9grlBakBH7_lWuo7YgxhKInfj52vxOZJLa8wgzm_UJyU0mH0bPnqav5Nn3sasd4wZABmSzoHqXy0C8NhO0Yc8NTvutGKTIxCmlksgeCJcmLl_PXmUhmc.ODavwMIcSD6GfbZcOZHp_Yez7_AElnfLbbArSke8aE0oZJnZTEeo3eNSGM2VV6YF8xhBJ5TQCiFqSoCdg6CP8.nvZr5DGaMEUkTkGCIqQHufb.Qf8oEqK.UlsgRJl5VDCMC.ZLgF.Q9Qa_2akQJV2qJ59CAaIBOZ70WesEG0X7N5RxCL.O4H.5TbUUPV3jcpfYNsFj6Y0ltmjG9kn2sBVBM3INLhrWWJ6dt4dklQijV9sRJn57fzsO.CIoLkUkgKROQklwNLqTMsVGw",mdrd: "G2bDxLEH8KzYnLOjrNtQfaxxk0Zlx65L1w22_M8xAyo-1749257749-1.2.1.1-na4hAochiH2tjm0XzqLRWKbJrJ_k9ZQk1pTGOF3Zwlo74YjdJ3zZaUUjkZeFFBXUrXXiNwTwGc9866xnfkF23nZ_JQpaaydVCh9SJXNDM7YaxVzQYiubdQDff03yUyuX7f171SF0EmXzjSs0w4chngM.iFVZPRqiALuMaef8b02Tz0DzrV3bO7EuB9nYHPmBUwM9i6vxQQWaRzlTPVHuCAxeZPo5QIDU6HjhWF17Ig625nuGovW8IoGjIqFNJRIXZygnD.HJ5Mpepv4YyvCV63Y_q429pbKgw6f7ySDBJJQanlalR3.t4BHfmDAzvHbexktP4X4YZTnmnkVwivpH3D9olfSa0gU2Mc7A6ty6N_Bn1AcdLWlYRr0ZudN4NAE_4WKgG2s2SlLEgP8Hl0M.kc7dHoA3qCaYOFRo8RLzd5AguPWlXmZdwS2UX8MJTATjHKUY9mNcqiCC5sRr8IL6OcTs7Uv0s8I4FTChkbMuPgd3yapmoOQFUUkEOsOaPyh1pOpmHjxt5as4urfc.JfGfVVYag9TUN5dosMdamBJXOvEvloL1Ngk93yp2U5cNF4Tdm4Ngfx9D5n6Y4ksUNlUyZfuiQDa8cX29YXcM8A9cyyS05kw4FYcGzy9icF8TJDVaKHT_ay341GoeFfiJb81t6Zn3KQW6jt9tr_USESfx40uI4P0uS2nUH7iOYmlFie2e5FmrTbBOfJuAkXMgri6GpaclxuMpDkMsMMikQPFrTmOKZng1pHBd_8czs4tJUCQM0kiXSC.EN480KNcR43r4Ii_ZdUybnDlXQO9zD8DRw8Q4_PCXMio2YmX3B5NacOpmnXk7UkBdlJwWCinpatYZFUs5xDwPnE8kmguzlfn2.FpXnmtmABLD41zYSVsSE7XYnb07Bnd6jVWbNzFK0fyktC1M8DBg1D2EtwCMoM4xEGGh2xxe_Aza.wv0w.Z33Kn8c4zEUGtv8RUxrkHP7xys02geUURjgGm3tfSZHGdsoHmb8lRnyfXLVoSbxfMEj6p.lfTgjIfXlu27gfTr5SVUdj62aA9ola.e66FRet8t2lr0MpR96241SwjfY7CMgEl6_p8ddtDOsU2FpYOQaqe.GNLcwOjcOo_5ncSeYIaWXRV7bmUknYiKYNX2x_rgX5Q6kuMttJUl1yxpfg7fdOIdEIFmLO6W3M29DHJKWwgwngVU1_Iq8xH_Uy5TD_cmscLVLdisV52z0ZHSRRfySBUNE7B6EsI0yp1ZTgao_k_1RAza8dO1_xUwf_3r8tSfH24eCp6kQvq.3bVJDP03FNGFpyylCyroRQxpk9ArgbHVYyCRDdeOBCAXN_dpZqWJJzEINzLRKCIFYvhqNFa5795XG37kCkeMaAkwEyeVJdkSddQmcyiMZfEirRzpxrpjmUhjeTBybpha9LmBAzwWC5rR484G998i5b9MyrvPDULhMAvxp1huAeahrXKNOlWgGtIlND9Gt_.rffV74QX6DJfxhqza58bdZYXvmP7bKf8z8N_0.4BO4YAyRxtCBeT5BHkfq9QUmh5Pr5PRYfOih9dGEJzcLdYfxJkAouBsmgYlGgz4yGLeLVVv.1dmKjbUltJ4SyK1GpIGyyS19MajouqHEubwd5Z5TY9BJdoKPygjPQrwUUImXXiT4U9YS_OZhF7ezlOrlZEizJQ9xhaYfGJwWBgglQgOxDe6Mt.Ggw185wBvKiq1rbbt2b4B8mBTXVCip3VpavbUuFJgqN13PF.EB2qVFXTmAnO_nemsYqhmT.4sb6PnlZ.X0R_xF33_zW6x9UD5c3rrLJ7Ru3RD63UxiDBv77Qmpc_RsEv9LQyn0WX2tgyoQq22jspAlondWHP.DVMpMC9x.vMwy4lQvr1FViEd_..NQ.dTZ7oNg7EpWc"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=94bc2fa3ab7dd6f3';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\/1504876239?__cf_chl_rt_tk=YRzHnDECXLhogpY9ZOZFDZPoaR6RUZI4hPjK1XYTEX8-1749257749-1.0.1.1-sJ2N17WpDdEgztnebQHKB6gDKjPnLKdVv05bycM9.Ew" + 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