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-affv3139i.mit-edu.top/post/2431809567

  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-affv3139i.mit-edu.top",cType: 'managed',cRay: '90f33db3494087a1',cH: 'SGR_FF8C9FoCdx_hINTE_08R4PzfX9DXalBJXyQ1x7Y-1739097623-1.2.1.1-OgQJRqAoP_M67assaySy6wWudltF5JS29d_3MChwt2acILb4bAKVCEGYYxFmA0ro',cUPMDTk: "\/post\/2431809567?__cf_chl_tk=DtRgaKtai1Dmu_SfwQ4DA6W3rysga6Fz5CvN2XOkvfA-1739097623-1.0.1.1-.U.8W0yxHJKQOFTEe_R7liu1dDU38FZIuZZPG4GTU0o",cFPWv: 'g',cITimeS: '1739097623',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2431809567?__cf_chl_f_tk=DtRgaKtai1Dmu_SfwQ4DA6W3rysga6Fz5CvN2XOkvfA-1739097623-1.0.1.1-.U.8W0yxHJKQOFTEe_R7liu1dDU38FZIuZZPG4GTU0o",md: "6rtRtN1BsQvhxseBXMyltWkrwshvYfyM1jf43UGwf6g-1739097623-1.2.1.1-eTTU692qod5MlghAl5Ox8_XyrzWb1gwW.M4dqBfFQ6PPIlYlwbMAuxPukfjPPxl3Y3wKTvXRHDwWvCNkKFCuLn.KAhnzlwrBr8FDQCpqUG4EKJPX_NhcyKqckIX5BdMcnivobe9Lx_a95.NZMXq_ZYVti1TdrmbVM4g7NqaUXrHiMnd.NCqqiELEcA4hBRbYB6rXhUtjHONoOwHWQncpZ8FP.Ojnz4O5SeyyLdFyojkyd3PZWp1b80atimj5N8Rnv39cIGYJxJY4lo2ww3XHnx4h5KYX_Bh2u4dTyFOxbNPAy.tq5Dsq_XPRvQSU709g5XcvYJ5s.31tx3PhYjTXUG0kcG4ialJRC5.XeS9Rc.BZRXjo73taBJXULWgf724hOvtH52PxqNQLCHeSaXmF0vzMBukV7_UR4j8xC4ArT82XtQnT0Y03NiG8wGRfZvh3Mw.zkfmXEXtSAVv9vKf0xdGyo3NW0zHl1jvvlF.GHB3pg4VmrgVPrDaAqEWVlQ.neUXD3JgFjt_t_wteckEqTPLniwi8rflaSUdc2X_GHvk_PduHtNe7YOTNWxuh2yOJID6ky308zd428JTjpqEs3rCAGbo6ArlURQ4MUvv8CvH8lSYAmzKkJLWArPJq79nhJ0Mj2B1pLt0u9yW376fZcPh9M_yjZKjB2Asi0zwswrsU4nPlNjswLf3pOwN097PmjJpuGxjIXpuJgiodc_jhM3H5MiObB6s5yXq.qYK8zAdr4y7cZ5ekGdCbJ4NLRTxYjUKBOBEl_4_0fttyfFDEjniDrJaBSSB7MqkhaqB2llbHQ4bNg6zS6p6vBVdw__10g67Y4jNdOEAqqPqvGnzEKbINXY8nkSBP3BkzORIJoA3bTcDzy00qQccmNB1ie79HkDAB6gVKk3gZDCRaTCgGB62Gkb_nwtOfwGkbRYgTAX6NzWyj70H4on4CuPV_FJq43g5REb8dY63xFp6e8tgkF_Pi16jSJjQnVOYiIkvVGxi6ec3vILVyBeEpZUzzjfC8wlDi5zO_nZwm2CSaCESHzddddNDvFN5LE7ByvT4877EvlL6uGYi.2KlPgXPa38jhQpRhjAlyKwPzBFQNi4oBgbwV..70xinkJlEqGz_cHq2C0aNFcQioNDIA3gpsBqONtNyX90iGKCpLBmx1jPWFGrKw7z0sz9MZOvpoXqZ5rqlmpuOtMJBb0FgF8n4JaZ3wVCju6CaK.YXIsqoARCwybw51d_MwzJ8.WAXblKZBSVW2IYSwlopKrJBDVNDRFRbd7SlNWa1Yp5A5fk7EuGwPx3tJJumCxrNbtQNFw6W3hBsKgVMaG15jHM6xZHPjbe0L5MmD5H6LLi_QYrHhnkpIcMvVQ0xUUSsi8j2gdTO88OPKkkHuQZg5vJr95SxO4FiGDO_a7MAxa.fV8V4wpU812j0qHWMGvD9ywRC0LOIdj9xaS.b2jaJ32EjjYccADrBv1EvBJk5wpYtOBEAfdEK.UhU8r.zmffFgQktBAjcGuo6TWm97hDTJdNSTo8URdHN8q.VrTjqDxYfEr4H2dETwyFdkD6dAUDwBYuFBcaXlc2ruyz2jcNaCVK.Xvd.mM5PW3D0MiwGbUwwHnsjFOvpMn211PkEJWQc1itKhcX8Y02uTn_toCYxeicIXmwXwGAOmJy9w_.cbIJLEpVUcMDBH95rKyjCveoOGptnSU5jpB5YivZOR_DFqJJ9WiOdrWu9mujNs6vUVu6wnZyMDhlzqyWJipW.e2RuaphspvFNJz9uMtVLgYl69WNxFcFF7CALMN9XeItjHk4e4gDHiAWakK.1ZpLdhet9_521SGoHXgers5LS3mb53A6llMoP0wMKNFjaQWm6j6gNAw2ti6OBkE4r85B6em0EbexscF11qogUnc1_.YKBk0wCIsq9vT7B_XFyzW_Yvta2qJ_8fk4g22gqqRrEbFFQZ9OqQNbFiHNkkbISStjk6a5cZMy5tqUKAfPqs5vHhmIrscOCQq31hpLOuRcEMxflg_QyYMIrUn5Cs2b5a6caXXcDOCkEL0cxVP1pa7fC0tEmyawojiXBBpA2oqwkeCmFn7aMgzI9EYESLbYpQ2U9VXDWEAJuB0pyWQdaSEU7eVYrqB4Jc8iTGKYyE_1L4zgkerybYhC4aTytDWdw000gAdzvAPNQeZzJpzP7LmTHYXpAWQXXG5FDf4AOvI7Q9M9hV1jGPRasrcNinuZPFiEmJLhYt7RypDRbp",mdrd: "Uz5o9XvNEdWrXbljTyuOCb4FZUO3NNbtNY_MtggrbKc-1739097623-1.2.1.1-tQLQLUmlu2YWCLPccIBdr9GZLYgt8c07KPSZfvB48shlyf.dNFfQ8oGDLJCezEPw_SvnbQV9vvbLq9DEju9bwLGCZu1Rz7V0NOZj3dDrrGk1kA92gpm1BYcVtIXeIb4j9Q2iAle_JjaBmqahMp6r9LEpfJcEFp4Wlgezfuzo2YYZ0Kmg5tPFewzW0turdRp0jBM60hFS9nIPi4teH9T8nVY9cP92gri84z2pp.iq_tQT6fZ1Els0i0oYQOrxBaGkFdQlWFfafJ_w2QqnSMNhvRxyi46ZvoDtdRG5jrrdAUv64du526hDHsarzk5EnIuiUDnz6z0N1UCrjtKSxP8rm0pm4K2mRwc4ErzbUCI_J9fH8jh_gpcA7PGm09Y5lQmgkiBRD6wPKz8YJQyR6vpP7gblMhBc0vuQJwV35Cq9jFWQ5TdrvVtRj2dEApEPGNYiw5.fEskZWhS1Em_qElWTZwS72TYIiPuVjJAI_ZXXgSKMmrylt4ZZgZI5LBi3AKRahfQlmjPi7W3icN_I1_GI4lLl7ep0cZMy_8GmkgjBUb4AHP5EhI6JqeTM7sdh5SfjnwLhpHSYcPZa_r_gWek46BGmtkteVyXwtehKKCER8LwD7CNarRwl2K_9Bci3A76WzJoCn1OK3IcuHmOCeRUTme8LkhbnGWXiwKE9B0CNrAH1UsTF2pyyUwu4_aYBWnRcJN4LeOoJ.1R.sj9IXttrSnpS3gflOuVTIU8209kYFcrqgU9qKclaLgBZCTZxgmxVXIiKwtuEue.R4YDnYFUkzFVBeKiyiyqJq.DHkJLZwwW0hCQB5HHYNAbcasq.nVw09.BvkoyEyr_nDFTBaxXZBsHiPddNdDWOS4aB5DV408yx9ASTJQprKs_mX16UgR8vPfeEDQ3.JInSASicBsuu2jU6lHLki6WHLBwu0sQ0rvRacZJ7dCGIdV_TOttzbUSaJ2EDZDNQm.Mo8mZtJZsvaukbvHQjg9Jo6Os13rC9yJCmA7bB8qe3aszb3nmd1fLYFBDnyZ6aR8_Z4pYbkIMvSe9vVIgZ2_Lp.o60At4VxtNhRwXGkvJPDLOb4E2oH58dr2rmFBdmEMhrzyefCnrHCO_R5ZaEjT9_XyeWuPGjVwWQGGWs6X._L4zTCeIp0zDpYwiskSNeVMjbVxqXIMDLRgc3v7yduqnxUq0oQi_gEKm8lywavrIAah5bZKCfjT.vvzJoAZOnooRdU_YlBjNHCkBWPkx.33sgaHvAiOGSslQqmy55POyTLvh8jI1F8BcFb7sSGJltmBTpK59vSkI7WrQ4zHdDY0._W4Db4RGFYcaRDEseYI6FeZ3VjbYZqJKJxoxGHLDItc5eaNOyCa2vBDsmT.Vgk_0hmpGZIQWKboTS5QwpxSuafmEaVeLXoL2fTO6NBp3S9Q2FET4NnIr621sOCvl0pLOjiz79brArixo878WDm6EVlGp0X5Emh2yewWVVzzJazf0D14traUMqLOXM9D9NrlBkgryM_tci8mjg9OJKZEKvAdvPIrR17rcGzZAcZj3MFwa_5WtMulCcFz7MV.yLdTBJRBGLV06J5.KLMhItMBUwrRZBxTr27LNL7qigXlDQuXH6w2GvSn9KQ2OT23vQdiOq44BOF015itm7WPaIz29X6YBppMSKYQvR_m9O8XPRvJd0uuhL148pLv_fZn0KAvpo1PzkuDi2z2ZJEPFSlSTB5xLKymQ8VeNkhV10ZzzUnfRIug37i.UZ5osNIoh1PXLsEKg6uDngFdyHG8.j6K4a1r6i0p3mbxQKXgGndSl6a6WEF93V2hhpOA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f33db3494087a1';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\/2431809567?__cf_chl_rt_tk=DtRgaKtai1Dmu_SfwQ4DA6W3rysga6Fz5CvN2XOkvfA-1739097623-1.0.1.1-.U.8W0yxHJKQOFTEe_R7liu1dDU38FZIuZZPG4GTU0o" + 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