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-affbl5972.mit-edu.top/post/3571894206

  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-affbl5972.mit-edu.top",cType: 'managed',cRay: '91103e224924c98f',cH: 'bEyESsU6HdwKlTOcY20YFv.Gsf0iM.ez2WOBxuvbpx0-1739401728-1.2.1.1-JuvehY2dgtLeSQDFxykdhKGFivZ6WF4MERvLd08Q5nvTWVlgYABBvhqH1HGvE79Z',cUPMDTk: "\/post\/3571894206?__cf_chl_tk=dq6Gj29vmarGS8BgZf3Tj9A38rgLwodmoWZ_DQ_ROCo-1739401728-1.0.1.1-4pM0go_DyjWhFHJ_TNpWf6xFjTL6C.3jZ_NYg1hFqeQ",cFPWv: 'b',cITimeS: '1739401728',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3571894206?__cf_chl_f_tk=dq6Gj29vmarGS8BgZf3Tj9A38rgLwodmoWZ_DQ_ROCo-1739401728-1.0.1.1-4pM0go_DyjWhFHJ_TNpWf6xFjTL6C.3jZ_NYg1hFqeQ",md: "mfX6B.vHBUyhNqofB5eiFJl0qICa9x6pJ52H1jHz1JY-1739401728-1.2.1.1-9E1Z.euY_OmnKCWPBIrQYMYhKE_gX8FPODzYM9t_xDEmu2whvQMIkjuNhFGRmazIG8jeV5gtpJzAz73ejU0wRuM905WKWCZL3TATtAtjYiVeMk..mKZez2rsjbELyZ5gxQUg1XqH0QLccXube0wMlJVY4qKZ5vpwVGCz6Do2Zy9Cb6lGnzbRO1L.W2sl9RyYwu1mbuB1gZHNy1ackU.XSFeOMrLGKKR7fEddHL6FE1ttEnaEWYkPhlb_72lxeMJEpgjkf3kQyDNTm.QwEqKS2HcSIDxWrksI3_L.GVFLBe8fboPVmQ2J4LvMhAEX3bjrIEMhducwaF1dkmzHhgpNOS9u_dd0He875T3yMVHXmOF6rWsdLYhFqkX9xamXskruN7gDZWG9Zwir9ePNw8KKpSrYhRREwLu1K81ryDhf9NmXBqSWueA5uUpsoOnH3Ly9QRlZzSzE_cTG14SmOf9WFlIEoSaDd2ZldigaPSrCJ9bxsDWuxgozZ5rvWgqRyOedonXXJGO9Wu7t5n7sBtIHqL8gZDPWWP6Yxij1zm.u_kIA15nnI.fiqGh7Q_ztLqo5qiS13zf6vn5bmQ6RCuc_Lr4RhMS80CjiXuS2lQDF8YEyqIYy2R7H.XqtoWLo75RMb4OTayZ6WGLgaxLCOv8hgxK_vQx1VbioJKbdiTIxN6RQe67NOaqH8oXY6iGM4I5kTftyss5pL3E4VEXxiJjDQgh5YgrzXrkL0wyl72DIN5octg0hnODCly18fp0CBAK7ajOosiEfruJJRVT4kUjuROKf99vJUnIO4AvGGd03mPgwISQd0GRwBvbaaWcyY4m6X01Xb4_aQGbBHWjrJIsBgz17zMt.ioKEHTSwlbW2S5koryTOdHSZoz7IF2o7_BK6_wufO2K641kIlkkoQ4VYx6xhxu4.4IFrGukBez5iSuctRGoAOypvyL_46pV9JXugz3G6K9rTwAR9COc3ZOn0Lze1h.H1LaBLUlopBzeCF2JPNI.grEqTjbvbfcgvzg1erUd6oRwDtTnBLb8z9xhKHq2NFfxH9_648Oz1OeXI7ql86s8IQvIHeUcLGcwnz0vCyOHou4eqECB2jpB31.xdoCd1ijDf6AOVdT.zGlAIHZvr_oC78BmWlDWf11ZsnZWwZKOsJiAOIRWu7aWpwMy17BAIdq4_yMJDBvjlCip8M6oSyKSRDHIyLen6ryBtRGtfiOquUB5w18Npkt7JJ8h_hdXprIDBywbTMLLjAv7dIMbQD6yFm9KfKGum.5YZ4mYOLF69Oed0I7DNMdePr11jDs9PTxPbDA8sQQjCn5j8N2pmtdruv0iaYMwO7iV6pCeXbB0KPT_xKwRDq9ykzxi8Wpbf4Qmt7Nd96Lwu_KsGkq09HjuYfWnrmuTX6L0zAphug2XEMUycOcksb29uIO1mn_c1Ut8fr7uFfWdeEeJmX1YuMQ3OXGCdkixZfWwlYNLAXZaVFhITR2nHk1fIhFH.quOO4bML9SQ24h7PVr15RV4JuUHM3ki01_XZFo12J7UwfS5tWdYmLJaWmPidIQ1y2EgzsI13teJYbQPJiEWlqUb0NGIjQjRGb0Pv3jOW5rNBXvPITBb1TbzN8ep8SV4aM0wg22dlxi6NiiZL2DQnfcYf.bHAeBbl5XWu7fMfmfU..sy3vbog1p9dzS3wRUU6AzFq9ycoGTMeXCFE6ZmyPtDPKb_mUY5HbtulExRWWvMne8jtOlYncc9vlu.7AUVnrYj6ObTC6eBPxpdQF3tjK_JqEyhwLBcNHnBfeA5V9ZMts66lGAiFM.c.edMysWjU9v4YpChrojmCGVazUM7DOLb9DnTHVDIHjhmde1Uj0hVWZCX6xyA6Odeu_ogp0p9BMhLl_WknN_YykNRBZepT_Y6Z5Eb7ZboQUxlYSwQiQKe7BMrfrnTDgSA9tA45r73Bt9QOefXL4D.Wsdi9UCLuP1BvSLY3VeALYYU8pyksGHW87u7KLNAl18YwBFXVnkYU7.sFh5XG7UIG6_AE6JPMo_77lKbU90lvzEijkYek4NEnLJ_ZwE7_8SyjVQtTcartCa4CalSG6VUJxR37XSXDLRsjO1SHHeOZm8znhWbt3qpKiYoHeiXFJfJFC1WHhbY6Vtm6nCfK.Z40Qvn3OBNGVOVFX8qe03SJjFzQN58O1rNsLx4b9Cqm_gcN3QUkwO4MTYvmXHlMdhKevEPnwJUA2wLF.VL5Ptnpnsb_Vp4kfk4i",mdrd: "G_ZrEJ4RyX3mtGoRJRu1YOjkQutYgdaoeR.7LOmc94s-1739401728-1.2.1.1-38ifFG9NfTLjW9gy9sVqwuVF1gCK4rkpsY.nPGhVKwIMvlecgcv3cu_r9ULK8.0sY_CS2bmxmJ0SLRzneRrOh_UlK16vvnYctes4mUasMC5suf2PSjwn2DAlQydbKVEh8QAXT9xgXI_bykqwelbFEyUhZtI.rkY2oEzt3Ek7CdtWFmT_rH8zKZ7OHKMzuEQ0bUWG_q9WUSsfCOcdlog4E8czCwKg6HRQ72kqLzDXcESS5AVQz3DL79qd0sy16sCizDv3YcjqC28YFZSz3ksHMPRYx3Ie4DdpMCVW6MQsimXI8J6EuZ2Zq6KMWHlMRrY5lXJSxfUqTdM28JboKNbZSYRABu9R_t8QESlcx.cyUuRLlhQpYlYXXtzhCQqUpwqlOIGiiIYNFK1wLVXDmkFTOCLkTjInaVIOWYBPcVJ8fkChu8GylJrsI82Vidxnte_bVdaCkip3OCN1yCGu2tr8HUWXjhT0mTwpiYED2bKjuCdPbx4BS87ftkHO0Vll8XFVVpnvymWtEkArFeOPL0sF9JMSmA3Jp6h5qIva6takgS.zElDNLI4Ip65SIBn5FbjSPjj84rY1Al_YmBecEfjTvB31OqFnt9DzzN1PMnPSu3Pw0PW99dlTLCyKoyN4RXTUL8oRKbyJXCOc9x7D7Ejq1WPdGpq1sSx8v7c3yLZUwNDEcnWYUztu3CtXJDFXk6w6fAOyxe6T0lSJ_kNeQ9wWEC9VbtyLtCEHXlmTull39cxCBlzwf0OvFcMKf.lfVVepQ08NAyYdDgsLZIEn7Rck520Zm96BjHuycNyqeADF0vHg2MWC0xLtoxfgvNYeC0BJQMsO2G52NxqWPBeWVLp1MrMzFvNSQPAQ4z5RowXgLPbPCnUAXCDN1g.pyxCWBqAErObZBEQ4HPw4ZC.MrOoodv3vSvEw3_AQQfQFmvxXdvIceU4qlTP1Fn98PWCxewP8OhH11eM4f4HROKUTuuCJPFzKLLd6FdBVgzqbw0DkrmiuDGQDR03z0VHDi_gCpvGiVQ5OFADToZJCPK8xL1A_Q_WQMCBYVJcHkwWRt0a3Z_abqlDXkvS9FjipRARmw2ZaROP45u.sCBFkp1cwtPz6stQVHW3XFW6PBLTNqEMiOx3uo8EYNt8tlMmV34ZbTQfOxltO_LzRa3ESRuBR6A0YOn1pp.CJolkmybTuUayl3Xmy1pBHZrnABI9qim6nAsowpKKKUbJFxggxFhQ_rWe6NlAGWHX980ulbZ4q2vO68nJnfIGYRIYGD9aPxlZ0xw6XZyFbolpA1jG7OhGpSQj.YKlVwS9m9fGMpvl9jyLiQB4KTAZrGcSWAL7Feao2_Mo9e2vMAafLm2panXBx9xhCYrM3fyk538x4KFk9Dqh6CJPTzo2EyVo7Kc8ZWc1Bz50WkFNho87jtldA9JYNQUA6oKlTUdM64bd.423q2usJ34BiOgVSVVdaT3zMEsnqpe9bg.dCP1w2wFRtJ0UYDnqBd_wP6DmxUXzCQz93PlQdMrYzaP.SfiwgX9g3r_N9V1SMXo_d9yyUQK4jQo3kCMyk1nKPh.kltZUChTw2VNmb8X_reaegKm89accZOFIshCP3VRIh__WQHTGJXjnXSs2DTdt5KO_ThvtLm4uG._lEdgC2FDz89So3A5Zqi0lECAVNwKF1NE9DByvtMY_7xs7RwxaBg8E1mPm9HgQYVNnUM8LzgiJkNFJU1hH3v6wgyW.vo_hlSeQkAplJgP9WTiMvxR6Oe.8WzdJtbfeqY5dJlWk4dVe.8R.DdSITLhvsQXjeI4wo.L9tR_4Uk2461WvHnACZdSESJC_q5wuXV1Q1dJI"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91103e224924c98f';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\/3571894206?__cf_chl_rt_tk=dq6Gj29vmarGS8BgZf3Tj9A38rgLwodmoWZ_DQ_ROCo-1739401728-1.0.1.1-4pM0go_DyjWhFHJ_TNpWf6xFjTL6C.3jZ_NYg1hFqeQ" + 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