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-affu4351j.mit-edu.top/post/8623715940

  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: "blog-affu4351j.mit-edu.top",cType: 'managed',cRay: '90fcca135a0b8299',cH: 'bgPB0Qr5v7mrWqgt139iRFhSzLxK8Pe4qmKeZLSS5GA-1739197745-1.2.1.1-ikqxiEUpY6qTY6pCnJNdtaFGU1hzOwadI420RwZck5TodHNM_g4OT0.4FXsvgTM8',cUPMDTk: "\/post\/8623715940?__cf_chl_tk=Mp6VQBnUr.ixZ_Wjvc3dIp35IHG67aZVFWUMbTo1hME-1739197745-1.0.1.1-lwftSkraufh97m0ZmdWVnWHy1paMX31WWwFmmHCW.So",cFPWv: 'g',cITimeS: '1739197745',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8623715940?__cf_chl_f_tk=Mp6VQBnUr.ixZ_Wjvc3dIp35IHG67aZVFWUMbTo1hME-1739197745-1.0.1.1-lwftSkraufh97m0ZmdWVnWHy1paMX31WWwFmmHCW.So",md: "wbty7iC0e92Fmy5wgyTYICi8JLL75gDIYw4SiIV5SzY-1739197745-1.2.1.1-FQChHURrKr.ZiZhleTOJ0vgCVmHP7pOQAPDXrEZRQtspYeAjiPOt1fWWNTaUVKEJqnptRQHG1kK7ynkUNzgnTksgVNrdzKXTty9L2de1Z5lAys_Vi_0IWr0KvQ_T_EKes4VGMXu8Mtrm_gxlvpI15rk25udrJAKM7V2oTwCF7C4mi8ZIBM6wFaNdkxaNDodsTHysUw78AcHl5cmc9CpoPQTndmNWVrN_Pq2_IaiAp4x0jQ4Ayoy_4ZT5IKqYaDzd01JKeDcuTDdqWITj4hHU8e77uspgoKpEx8U3iUWjr4LrSFP2lZOZhP1J4Hmkd08rDX33Ir0amx9LbX.4EZMdFc1tCjZQVfux4y2Fxrb0SXR9tvWdSJ6VZ74Q92uT0v8yJnP8SBu5AtOk75a2cmi0AenHrAz7QnORIAXI_ne9hOpXYZisz9QrT.NVPOUmF70B4mSyShoi6K2ggX.oGdXWCeCHMBI5x69gaYpHN6deQD0i2C6K7Od8wfwzwMV7nrNy4TJPADmxcU4rETI55nn9VI4PNucy7McqB3iMd5npxhpgEFY5EpkNT_6q_l2qdEsJ.9Mu3V3Wnq7qH.J0LBKBEnCkOBuYT2IdN1FUIJjx84WNGcI8qva0ddhN.UsUJ1_hatCoQUJfzLHdJ54oGKV7k6xZdUa2N1HbMgTuUZaHOIDzMqP.ateIVo_sL5qHYRZQergakt.Ol6eob5GNmgAHzFIeQtRJuo5CmL0vU24kCNLimB9o0HhiSjnNveetxPguqnZ7P3d5SReR757ey6R62CPhIo1.6V1WExl4DZAAu6ILy2FgRUsgAYmppGZCrRA8IqgHkugLlIVjKSOQR3zydFkFKzX2ReJ0xDAerWYBu9PLPtN9Is.oM5vvNQD8SlmJBZyRPGL4t2jzA6Lpuwl.uglQeolKAKEXrYYBRx2tbsZzc0cjLqapm9Y4J1KyE7atsT.qiZvwZoOfcLCZeThukHKyOqMiwwKso7kERk25ZjzGNOT2.9bdkQRXuqlY2tx6_Ag4wEIdBz6QjAee2ED4Zcb9EIdvzeemFGzYOifoqBz3WPhTuzyvt1EveAvfCBRSARDOzFTVaQbm_v0PJGj.kffl5Ta02ghii8FrnnC6pUHbmxZ39AgXa6pXAJT_trC91xBm4O61hy8RbUzTRd9bTUmHemJ_ItvDwxSsoeFax_OIi7XYL7RhN5fHPs_C7B5nknkdNRTbvSOHqNKLJKTsJpiJ0ZwdRpQRLe1I7MCY5bBvt7XigwUR1YZ1bGiok1qwAK3lBir12Zn86LPdwZCFNJnlBpbW8Jw2np3G5AQeLXwUOXD_fJCMNo4vGXjRosAfOiSgeoQ9ut1LX9pT_caI8Tryqc6VfXwmFgvRhMZaNum0DUCPhsTF8zoRPwKfDbpdEJ5avwi8waIWBuB4OxrWE2Z25gxVIS00ntfaBDFVFM.G0I8QzU7N4BZXbuUO.ihKDZR2YvtaNraepvX9d7PIFh0r0..gg4psatc0b5Kp_gtuKl0tkQkoB6u7bYkTwwDUE2cKDjBb2rC8DMaaGhMQE0yZmOX.23WpOH8S9ZWV1xKWO.dRcn92mqGhRFyyR3knRX5yL7a24kfjhm.PavJ7avYYEiVjT9Nx0.AL6G_GBBpmAult8AgYHzlYy2nIMm1eKCK61X1.eorYMwcbjMUgBd2sKAv213CT7exnRPTktPgxto4.6l08riUBFoVQf7jOK_N5ccPrVSzuMqI.4MUbe842iqFmf6pCoftMwMq3bicdfmxfqkSJ5ERotNVQTtmIcRypBegBmHTEoMWCp0lKcNxriV2Kb2I6tgtmPGWbQBZk9yf2ewAvR8Hp4NaknqXSd42t4JVculIImz8Ax0By5M4Oixo4_ifFBRFZ8QIe4cVRN1evxJqu7dxQVfMWoxAFyQulUn8Z0qdmYaHfVenjvSMlXCuggBbzuGVHALGcAetnWBDmNq6lCfm4h6EjEDdzPV.tZRXe6y.LhTPE_BOWWd.FKQZ7pkIxGj8oYzQOGbfNsfMwxgys6LDfh4i3R8Ze3t0ZZYCP6nhk8sp2xfhdXnHBPFIXZ7Okn.m9sE8NgE8P0tI1SyaAVmLoHVt9cVOX5Llc1aRpecns8If.6zxYfQ2AzMZBRrdzfC2T79w2ifmPo4ENGzzP26yW5OYmnPpZGLFblc1MM9r5SZJPhnGN2E4BMYt4bxTaOC2.gG1OddQ5YZMH96Gxks490T47hiET",mdrd: "FPL.PYrVUgX3D3gKedrbUSwy5oXSqZ4LWZub1prphWs-1739197745-1.2.1.1-e0QTco5EiuEr_tNplslSPcwuH33TrQ0hQioQ74IaIPuDALNUB45ioYmgszWR5Lflt9qRv36cxc7p5HAXtDzC1_6edn3ui_tpa5QFmZ2coxth5P420v_2KIFIVtZf2edPDUstolwIx4u6QU__OxQRA.rqXTomPvmygCe4R7CiIeFPdWtkHHyM.biAyGUVenjvW02Q0GHvXro_cXJiKaddr1cNm.LRFZoyG08bvsfnpbeSkKYH3bzfr5q3bUm8K29II0MTYrx55LcCIJiaUNJ2OTeDWvjrYnyyoOP7WbkFpHSHL0fFgfqiGfJpnufs6FRUSeUCDIeKBrM1BgX6g.0mMsSDW6quP260TT9oScMFeOPjCyPtdiTHutJ_HUigHCn8fJ3OgQv14hvayryXTuo.rpkDvnJoHWNI06nnZ9q3eZbicSJeAgjpZuVS2BaouqZ_BwNVY06PcR5A8LVpLdY3W._AZHyb.pZnN6wKHRpOZOfdbmzZAPe.EZnciY46XyIjJ7gVqKxExWzBzVm3NCyYT7mhFMRfrVd2SCItScxYK0uvgmNi7NTHNSbhWlJbzXBhGFCFHgi9iixT0hd_FbwTIEEgQznDVzMwGAFmJrkbrsCs2rbwdEvkMfJrG_nnekWFoc3NqONkO0k.lF.THpXm8EiiU0BZeZ07mobWlEynPuxqyzKf1NV9uD6mOrsOh4KsJVXNxO7fs2Oy71srMo5iIgs5MqdZiZNNqW1Aw2BVYvPfRPzkt7N9iRWekMlATW1WSCx3oBIH6UMYhJ_BkzvlMvJEl6g90s5et5Vnk8Q_FOw.rEzyrZtl8keop6wuNRIzNARK4nx_zyuxgz3rLWTCa3iMvb71bXi1PYDdJc.Nn9uLkEBpS4G_wSBpCEhz6_W30hq6lzAsBl_UAWOXkEUqwXUZmj4ZfPiUaL4HZuuEfE.fkfkdUuNOx9enQ.bNhvZqJeg7f7WU17omOWsJKXNryOgKX9RTsS54LtQmLnzvbCqvFce.zRhdTXXhsw4Tme9_qofpccRI1qNhlZQe_r8tAiergsGCPzHP9ctecTzVveqq6Zs3dlGziZvIiOPreRFsvuoZIHmS.4A1HAg8g2_uduHF52SV_dTKdfMdc.HaWD7eorLPxEc9ZIZmX8cU1qaXQse.hq8X_r0dVpJHosuUcdxCg_OU5GgY.IWaCvxfSv9jcoCgHe0PX9BmSBeDeQLihJWOl4U7mz5jJPoXqP7fnCe8B6_fc7R2Eflrc5qfZPvXxCL9UsAYDLbjOSPCPb_PQkYKAR6CBXev91ZqP_g35GoHC00_BYx0bPSte7s93mnqbSnCZASAwHcLYB92n5loQN3C7NrmRBqBvtf7gWIyig5MdASxjcyHp1B2mn7uPWf2D3zJObfRqrft0orY95iYRytWSjdomRRDrCpohFYz2EX.6odrlNJCcEa2UB_DHJ.RSboNEXZD98JjjtpLjDoZTiQ3WceD8CAaEZSES79QGwB_J9zL9kRBX_Xh5fUoWU5Ki4XAXPN1elpzY0XMb3MMQRJkQcqMvh1kdRMneWUSD.jMwTme_1mkeRNk6VVTxPM_hdHjgqNSsMuW5LtP0V51F_7LPZUgE5yQGYO7NaakCZQI8MxawVqrEdi_LSMgtXksG4a1YSv6KX7hmHgWp_GQ.bgsmhDy7FPoim9zsjiQFJ58mpQSDOZMBF4DuPRPLoKEE8LTkiENrqcvavNw1eD_sAvTq8kvTHJQJPITNoQcIZKYrGu64P1ghiUWOQ9fY.VLYTvci8Szy_r7tRLmSTaJ0CDqa3lBFE4J6KFhyAlwsmNY1g2vZ6S7HJZQ041zzVU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcca135a0b8299';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\/8623715940?__cf_chl_rt_tk=Mp6VQBnUr.ixZ_Wjvc3dIp35IHG67aZVFWUMbTo1hME-1739197745-1.0.1.1-lwftSkraufh97m0ZmdWVnWHy1paMX31WWwFmmHCW.So" + 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