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-aff5rupgw.mit-edu.top/post/6802517934

  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-aff5rupgw.mit-edu.top",cType: 'managed',cRay: '90f18a9c797ff283',cH: 'pq5O2fyoCyFQ7PnlL2o.Lwhl7ofJ5utC5vLhY4f1ds8-1739079802-1.2.1.1-c1OxxxArkmpQ0L5h0ns6kqhzH2my6SOr6YzwTMtHSWZBtZ7zvfIpYe3Ybb36Aztw',cUPMDTk: "\/post\/6802517934?__cf_chl_tk=a1n62CK8tNn_fpaIpGaJpsHKyOt.lSn0z9F.BEH2NtA-1739079802-1.0.1.1-ocVoR2di46UW6F5iqx0_Ys5HSL5o955cwzMPYhdQM8A",cFPWv: 'g',cITimeS: '1739079802',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6802517934?__cf_chl_f_tk=a1n62CK8tNn_fpaIpGaJpsHKyOt.lSn0z9F.BEH2NtA-1739079802-1.0.1.1-ocVoR2di46UW6F5iqx0_Ys5HSL5o955cwzMPYhdQM8A",md: "IRv26bI0EvQmwh4RLiWJmcV0vcPeNmXNiN8USZ1iWrI-1739079802-1.2.1.1-wSFULLrZMD3d7alMeSWoViQ00PiuS.reMU7EXGOjFar8cCZ677JWT.wO2nPd87m_IpcLsIg9560SSWRYQZdb.ZlMOH.6Gbfv55JCX6tKVFAsMqfDxDznXur0w2AYjMraSWFmM5jJVuoG1seoiJBU.Gm30ERGOxeK196ze803LzyuBNAHCvt6I5XeG1T.ualwBSRJPvQ.Ledf_gV3Tm6IJ4Pus4VSwVkj32D2G7yEAmRzqNtJ6hW5IT1vwB0GcFp3OYpNLH8d_vVQxCEiwjFwaBTbzXmdF.hBC92GIZnRXSEQHJGeiqS4u0slNSwtm.ugr_jEicDkMKwn6HzWlpivPaanTAFaXyDKq4AX7RYuWvaENWyg3ldk5YFUY2HobQPUGTyMdsFJmOMTve8uINrpeRgL86zkzJteRX3MWeHEjtsYPuOYa3qQh0.A_mxhOSzoQxvm17zx256hr_D9SMjGvKUn5qZTC2OrJMjIwiBJix_Grkqi.f3W.ba0FUFRGg9Pn_zaWvtAH2ehU1Q0lrNWoItkIre5ExzNXNvWGS_wMPvo34.HRp9fv_IWeKq4cRkpROOi3pgwNWwSsMNWy0eZF8rumqZp1k.zyz5IVMrs6t2cdfMziYKWzUIVyJMk.FT7s19b17DmAeCw6Z4z2Qrv1OVfCoq3ufrM0BfiYscUJrWLhn96cqsK15DROFDAH4FSlaBkCSm5tAdh.676BeIHAcLoFvvznMBuYFso5wu6VC60P01FvzQ0fpAI2FAprB5b1QUTfs9MdoNwWJwoXdAiEiUGVpdb3ZcRryIBQNm8G5l7e220U2PbuX8YgaJrccksa27oEq7RwCXuQK8qgPNNWC6XTafrJ9Nu6nQPEHKezjt75gsONlosVrblHJ0Zetr4Zg17fQqUAErE3NUnKZ.3oRS_xkKe1s2OErmrXMpx6WTO15.H4_068j.fj1CYU4E.37RTp_WZAxS3qh7Nee3JKx5kDBdh4Gt99B7x31ODXsgBlCW.q5WKKL7RyseA7R0kyfRipheH2u667VNb5fUzqhDCIrYZFefprM4sah5NkB1kTwdeY8_z2q1P0xaFN0wouvIM6n47yC.31FaI5569EzNjA2DcOmkJ99AxeitJeEGtHXtmrNHxsQYOZj.i21oik93S8h7Ia3P_0i_TUwUTBwoo4PAb79UW_1IqB.ivZqyPXxfGoyfO7664hjpvpdU_0_EFHmLkCvxN.j6fLWAXukehM2oTgN_axdrtI.qOWMDl5kfQMhKY1lpEzaF7DRVq_EyhDX30cDl4ULtteOXFv2BFlrqvhFR3eO7pbLr1KKccn_m3QZKMagSpABisbOP8JoqOmwu6AmqXAaY1xYZQ7hcVzSEodcU3Lic5Ly6i9WEk7YroEWLOwsUNPPJeoLS8wqrUkbmuvJHtxXXBDjoLfkdT0F9xoK1lZw6D0rdrpKsiCPw062XKwpAw5cyHza8pF8FMG3zqnvP.wqrgKu3Tku718WsOzoDj8iXb2.ijTNMibbhG5pTr75xZiVsbX8I6kGc0DXdYrgEqCZpidWfhVnhB9Xym30VlpOKZe97De_.ThDMCVvSWJEhpm3GqBZBaBvPujLMk4h94PJtgAhAuLYc0.7fCUIwPoiGdytm1Ku0mVTq4KP3ish34cWZBOmF2185EXwvO7LVuh_3vdGplIxGYWr73Fv9nAYpBTD222F2hWYyfwQcz8BZu.Uu_KrFCGCKQPh4Ra6c29iJNayQILj6.VT_2bS3xPSf2vjFVfqJh0.fZAQ89wO3LXRafGezLuTL3dSa0X.wjye7Hs4umaZGNlwyYwWfV5q2Gvme0IxyPH_UYBCHz7evcTem7HrPnb129pnT5P2lArcSPCaN2Q3.KdOGkob_2.JODLXF5aYRHPGMzWC2JqvsqwasiX0O1aqTjSoe1putsVGbUig_a82dEXaVGNqGHhTiJOOoQqVK6l5Xd0n_S62D76q.6sl8G97D66iUoc2hWS8ObLRoWQERDc5R1VjUu2ZwiUCG7Pkopv1Pinvdg7p4COOWj5T3cTmTFhS0DYvzLW0m.dMKgrElpmZ_2TrxiXNQj9.8HjNT_6Xr8iUisPCccWpN3k6rUZPq.oD6yoeSFVnWwjtxQQJZoeKm4NaaWmRMT2hZjMtlngOheSU9s16kO25BUA5ogU7gVaG8nyBmfO6gsQdGZRUxspONeQqzmwy5xf4hZhGyp7ucsInyPvOUoOPuhSwbR",mdrd: "YOqsaigJJiLo.3TjuEuSy6bLP.9Dt7RWutE160jEKvo-1739079802-1.2.1.1-1IehLQeUMq9qFXIYTZO5AXzMgSeIVas_mfSuxoDwh0_hZagza3Q68pALqTOnW8.vcwD6iNIq1jYQwxUw_0HWN814TbpAiR_J7yluKwFnxo5yDYmsBE591lOLw_XU1nCwyyDFJHx7.LW7eEoKhlmLbQX3LIiz14Mx5CyzfeW7bgUm.LQObj4UoVNeds25gwf06Zsf3hvU9_jN6TY1PHDnr0xngWQEY0hDdzC0OT9sWgm.1F4nZ9x5Ozv17erQYKBI8frFt3boH9zWGiQiiWwXUBHMIKD5G1OMPyz..QHIeb.HpSwYpn3O.3OJKThl45gQKrHSkGfHOwIGpmyA03r4x8wFF46VvAW1Pwl7pqQtrIXAndGgu5Bm9kGEaQcHcnBtLrR6gLWe8Ke7omqPUH7HAGZcZCnenY.LBDnB7Nj1fC9CMd3hvek7Qf7fcAZ4dNxoZhmFuM.1a9kgnx4MzEOfSynZV1g4vMcik.NO9Ml9_j3vBnbKLNYp131IuABfyGBz9lazi1Gb5PKuKYyoD3Yc3h9ppEhattcHlZN.Dudx4Ci2Yjx4njz3jNjKY6roWh8WklPSMRZsuQbGCqyEjSU9wkwugMABsWGA2qFgXI2P.yxTRZZo69642_rYgTiWnPA0p.WeZNqhuMY607Asy7jT9zKqU5M4NKvr584gmkjr.pseihfqbGTOqq2s6Uwkv2GyMNv4mky5At.2Eh77HW0DsiQ1dfA7srWQeaW.EP9KavFRh3eYd8aPTdNc44u80JbBXnmHkSd4UE6IviIo_yPE0h5atNPKlzVLpeiyRfnvjKcrY37TPT0hPg64eryysRH1omddpNATwRqnH6FHOWEcEeYwP2j1r2EPEwMk71agR0JrYqO7KNldusvlM.6hAMgUqvdBnMLoNIM.ESqSADpkCsfagomUmY4sReQszixZDXMhqSIzBil5qBjxEUlqpzfSi7NergDyxrFFCinN8bVJMa0GS1LiMj4fLK_NDGdWaIWeTldBdTRf5TQ3jJr.5DLrp67UjpjBswBg261b4ogMVusin0JouFy_MU7WulX2M2kRm6gtvYE4xR0lIXC7SH6.pJ431RubqkikBUHQ9bW_o13PyVW7UVvcmG2yyMVGKoYv6I0vV0qGsHS2Fn_3vpWDHynpayKuDL5pQfRuEcrMCy1H3ELx9VO4LVKnTsP.EToj0ZZgxVF8b2bgh1h_3X6wXevfNuwGhXHu8Gi6eXy8WJpk3QqdH.reKWbz6TBNRkPH4PuxvffQ00b.qKiO94CWTeSI6DKJBe3QS6vklQV5_oMosHvLhwg1V5NLU7MgqRZryPuIJRs9WIhRWRD1.ipa2bnJYqmFeQRXwS0F01sBQM8bf2b_0PkZtrWOD2WuANXLUrafUAMEbfIDLXvsY8ijXBm0Bo5O9ou0VpG4FSYVVZ2vVRExK438.sdJT8zZOEdzFuyzzSzOyFTxWadSQyS2WfpPWBoQv9SC6FuwueVK1ehsA7ybpXfavkeuJ_KBTewzq5VzE09RKZQkjCjPskiRhdUBNpC3aZH15qgEQYU_a7.qP5mHxTmKVUi5Ok57MO8AQTMq6p6_7zB8rni4LidLLngEubIGOWGKSlzbV.baCE4_oL3pmh9.9uM7YBge11.PWpa1L0VbvZQRIrupMm61BIgKlas2uI4L6TK.S6UuaAmemoajqk3g4hvGmZTXIw1e49N4sJWGSLOUjoAHMHnSaOmliWSkY4FLLFm2YCfGB8X4Ko61PRz6ofZuVmJ9hkeaq6Ok2RaFf6wONcJfu3e2QqY9_hLB2zGkEDSiSSJQKVOlNprQBVc9JXjttWB5sn8"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f18a9c797ff283';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\/6802517934?__cf_chl_rt_tk=a1n62CK8tNn_fpaIpGaJpsHKyOt.lSn0z9F.BEH2NtA-1739079802-1.0.1.1-ocVoR2di46UW6F5iqx0_Ys5HSL5o955cwzMPYhdQM8A" + 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