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-aff95vs62.mit-edu.top/post/7539810246

  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-aff95vs62.mit-edu.top",cType: 'managed',cRay: '91103eca3b0fc036',cH: 'S3UIPotw4Vq1LtXUMvgk8U2d4GhvcixuT5aaDKZIE1A-1739401755-1.2.1.1-1iG9Pwvc7AHSta6ge4_.vaj9ReewBHVOTFEc4vLzS_e4QZJBGIvhA0Klh.dYEMw.',cUPMDTk: "\/post\/7539810246?__cf_chl_tk=yv5r3l8kSJ5vem03UguRhLn0Btrj8mf.W4LtJZXWM8I-1739401755-1.0.1.1-FxMlWJstU.tduoNSutPYbRtei.kTM30n.SvviNnRpbM",cFPWv: 'b',cITimeS: '1739401755',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7539810246?__cf_chl_f_tk=yv5r3l8kSJ5vem03UguRhLn0Btrj8mf.W4LtJZXWM8I-1739401755-1.0.1.1-FxMlWJstU.tduoNSutPYbRtei.kTM30n.SvviNnRpbM",md: "QhZVPKZywUIkgo08A_7pXOTGye2qSC.wvT34Y.ctSEU-1739401755-1.2.1.1-cF_p97byp7ApRGfX3ENLLpxgRHW7OwDzwhMVX3Riy0j.U9Lk74wsKTlsTLZKliJissNfErwfl6wCkVzBinZcIMHF4eGkeThRQgWhsxSb2oIyIE5uJPdHEVot_mUgbvfYYpXtoovDki7KzPBFfHXcQWn5ciKi2342dl3hgYaZEuTrEjPdeVtXYfLWN6ktRw37xzeASGB2Onyqce6fYGNf3bZegQcKe5aMmtQwecNOg4a7fXjBmIpXTHmFOIv8LD.lCRGUPBWt8il0vfsNCOpWUaHrWeeIDNDP_qaNjp_puDtV9mwYrT86nGZp5wmb8nRGqW.d48vYftgUD6q1Fe102X_ka440CAJ2Qh6YdwtTBkCVqN39N7.suzFqPyrBAHsusDpsOLuadSHPfvM5sRuT5BGYSUWjzC85kudv5yPkaoir.Z.IJ9vfeeQjOLCivHOjwT.EsgcyHvnWyXmALwcQOnOMMFokb0ibxcwMMMwTYwy2YNimxKrDqtKDaB9xkC115M8CvEBQGAd6uCIFXzKzQKG02w.6GyCJCqH..WzaO9e1FNcCYtPCQdVDWtd8DpIwNsXreVJzlp4oaie87AKuV2ST4SQAblsqPZI3Ws11QQPTEATI0EdkL42_SBozXly7061xvKdollQeFVqQ1QDS.6UhFClWF9fHxViDCi3i7GqRQOjO7En4GMhXwCh6cbTqkZC0BmrmBgNa25l8vohSM_fAz.rEnDtKx_KFezG59OWI6zmze8RVeE1vZf3P7FZcqzxfdW5tVIHZWI6iiw9DGyCOb0GcTD2i.n1LIMTRxKxj_FILkTACGMPJ9YK7iVtkE5NNqI7TzMnrugNlZ4Cbg._RMrIZ1XMP1tiZXHivbHTfrfSZ3kI3HDVdGkzS4GGt9MDXF5R8m8P7B_pMiUECw4EDCWjEbRMvzrPzULJg0Hzb5iClyndKS0knVzAhG8E83ySVCwO3A3_EnDoiCB90ZheP5CHXSNaboca4mRYRBzCk3B5OVfs2HcRFbPKTkPG39NkoUAyfd23wAEFQ_t4AfIU48hn45V69p9K2Vnf0VdmgcLoIGQp91bP4zOsURrGUIJ92hnhSi5jtlvUAwRY1aAmV7ymnRtinlRMz.lGDZmeJt382SOnQ1ognw_loF5rIKKSZNy_FfUjIMGnwfltdE9mCe.znrpqBh1.ZfjqDRenL_31WhMkuam99UT0ROreYV2Il8m1R3jPzytPqvf8LZjiIZTEkcQt.6I9ufiStqxsZBJHg6EFqZ0uMsmzvg3lBK6r8zRzCg.rrBis5Dx_IlsIAdoHPXpUa_IZzQqvswHYXKNMoK0H5tUbwOfYm1fPSjX5682BPt_SEFPpiCwSWBbaIps0UK2uaPgIBwXTWUKeuFguQ_WUxOxDtdUPKjFhaFlzuZGSeXbpkjIWFFQjAC3DnruCRBPHLtMRE.DW3XTmE3ISpX9p8OucKFjLAtQf5eMU9zVoE69BdRr2ERjY8gyBpvp3p1ZVsYMgfmgDAivxd8xVEEoQ4Xs9CgXY1VUSoSUu1RFzuzLQOS4pRHiJ34.QB3oyKmQeI0PC83UvHvwwUH3DuoMk44nEztKhRYC15d.n.5mwqEpgUQrn4CFQM0y7c4VsHj87gIASMNbmZ2joVITPjEXoRX71PfpESooPO1eMw7XIoFZfvNrPq8Xp7mZRAEwyVeRYJfrch_nIpfaulOdZrONky5jkyADxVf4bF9OawwGOBQSMymyDSFy4pdDP2oSGvyE.SjxayosgI2tRADl0DUCT_oWz96oFgYrKOTOBQ32EXQQKibBibrF96Pyy3xP7sgZLHKbu4okwTGEx4tOV97igW1tTo8Kz2X.GC62tZeRho4OGvso1u2L6GmlS7aZq39IgEyeTsyymZJs.mG3y1pcUvzOnU4Q3NL.3rMunFR7sP47tii4Si1I6PyuqZTYm9bdA0cEyscBiB9Z5n9Orjlks5DaLmUY4QEHwIRdZFBFwJDnG8XTtNVmk0MKojFwxYZjZn4eL71QqvjO7Z3r3iwP1OQGTtCDxLUiTQtn9ID.ti3CDIZXoYk7tOdnVzyZNin2YATFYSTvdNXbyOVnPIEWGrIjvALT0.hkwxwGZDdklestLJxIqCU6IqdramNfRdSTLxcOJV1j8kgG53gdH2f0CzpQMmZ7N1bQy2RGZTgmiryNo9yspnMUJ2pdxVIRjH5hg3YtSRTXtINtoBmUxzGB0e6wCkN6u3cmt_",mdrd: "FyAU.O0BLArTsAUrP6S7LXf5IMASNcGIUjRjSPJgbOo-1739401755-1.2.1.1-XDVd2mz1r6mKNY4auZwu_ouT735K3BZJNY4ZfHvX7vN0hxYlT1PLRuWCQElOSDJn50ucL49UosZ5gDjzSSrbFq_Ixu8WRDD1MXFrgEIKUWyRHPchBQPPturoZCFh3XKkeY.HweMzkvvLJoQwgs5w5RfMAyij2RYUfugz82zbTQgPLTVrPO3_0sOLDoygtpXKrK6FUw.bivPCi5vs_INfNygXorv8IojkFgW5gHnfmjkUoNIyZtyoqyY_y5NQgV8BHypgoVvLrKsQbRY_589qMKKWOyEmuNd_9nMPeIZYPYSjaGfJEiD3u51q8a78pMRD6X_CY5N427OTjcVGrjqh0sDh4QV05VKpS3WG1m6bNAkGmcqFRr2WTVcmgA9FQambvMpKADguRyFtT5EpvcCP8k_M4xeVJe8lkvdBJU.2Zg09TdjyhIRuHmXweukroOJxAuLM5N5Qcr6CLh9w3nLIRHsum2qC5Sp77a1yogQkcHmJrWNdTY78dzyT7KI1KAKwlJaDk4GShOVlIxTEPQYF9iRY4B9WF3gHKO3o.mOA0t4QegI.TE39a6XouskBQV3_Xbx5_i0EzpgaU6.hMvWbPCQv_jC9kSmeHt8KyGz2knzm2S9aZp7Myx3mImnkiGjnia3PMWI1heG7xJH0r17SNnkEYoc6BLkoexY0eMSWCS5o83oWxhDo0_L_1H2jojnjvE03lGvOToEZdvjFNCsRfCDdBxGqr3WTEAjI_FzcwSmD0tx9XI_70LGJGBHmGGU5OBV.MymoJZPBEHvZsjjR5CoDkuu9FCyAak4fCEI4b4amxq2JIeP9mKhlrnxS3PDe_lQeuUEh1jkxhemK6EmNSAlQ6QuGdSXToRwJNsdAgDsJ0KvHUU_J25IuZVVX8bdefv4cDs1aiueEa1MKxSNTGv2W8FPIxa4.d9oXbnd6O1m1JFcyRbU7ops5gPdrXObloDLOkDsytuHMCyrhupcNNOnuwOXc4d9tNrR9bmjuBgJ32TnOt.4Z_DVw.uRdBuu1T4N7dW40modzoAeE0CRiABCHG1gV88YENlVrcEcgGsZXYa3lL4KBYeH1utiGCpHGV5Xu3BrYmJLFRxOT7pSBG3NAUcJO7MpUkLZMogkXCouSiAZtMuaPZW0Lu209yjxSz3cUQtoyZq.BU3AXsUBUigoNrbllkBxNRqDdlb9dff9ibxiFmddSe73bxU0ddiFIW1ympVOC.FlQg59AIuAUpQaeGRZYp5huJ4OhRVYdi5njGCX06rHz5lbe9527TIizdEiPZizrX8T4fRL2bNIR6gTGCEk8AZCw_vKa0a72GgUZdOZM3dDlZbLfpDniaRGHH7e7F8Qbs0FgvolCtgT4Gx_TYbJ.BKGBTHqkvz1JZ0T8rLaXUg4aexxJCFJB9q1.FMJK8gMs4_pan47dq6kJqK6dnOjhScbsuoq6X7T7ZbeYasw8Cbs6VDIN8l3yWaKbi9KMTgdMyqTjplUj1cUO_KiqW13uEuPVnZaUn1aIdFSIwTw5A3iuud07dpMNGUoFbggfc8qW7OapD7lcsXymsNXakuhGvt29T2vhsKUS13FryqqKbZ5sgu1bzO3brn_Q95xDg2kjIlv4W7ZLQ032B.xNoKMs19dnVj2uibIMCTS2MFNiOTff5c9vhZPUt7jMivXjI340laCyT2Af8DteZyGnU.RTnUqAyUchILTXcsd8S29Fk2KZJW0cJc3w_fprsHjfPpMp_QY3gmZWtQ4i77ZYzPwP9a3AVDtIaPwxFDyQ8gqrTEaAr.sighq8zVT4B4HlWH2psYBZqiitqCOiAg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91103eca3b0fc036';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\/7539810246?__cf_chl_rt_tk=yv5r3l8kSJ5vem03UguRhLn0Btrj8mf.W4LtJZXWM8I-1739401755-1.0.1.1-FxMlWJstU.tduoNSutPYbRtei.kTM30n.SvviNnRpbM" + 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