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-afftvrl09.mit-edu.top/post/4792508361

  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-afftvrl09.mit-edu.top",cType: 'managed',cRay: '90f3aaee6e8905d8',cH: 'Evz9sB6nRSB9ht3H9VeHh3NEAuPYs80pF4xwKyYeeIM-1739102097-1.2.1.1-tWig5.tRlbdcblARzsY90DUt9s.zfL6pTCqKSOsN.dO8xy0ngjxqPu5_YTzoeceB',cUPMDTk: "\/post\/4792508361?__cf_chl_tk=c2gBNRzgUtxvlMK0gfFzwGboFhbZQ0.ac8Ozmdp2VZw-1739102097-1.0.1.1-nVyC0GTO8CY3y9hW.XH.H4_lcFESr_LOT393mDf4nno",cFPWv: 'g',cITimeS: '1739102097',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4792508361?__cf_chl_f_tk=c2gBNRzgUtxvlMK0gfFzwGboFhbZQ0.ac8Ozmdp2VZw-1739102097-1.0.1.1-nVyC0GTO8CY3y9hW.XH.H4_lcFESr_LOT393mDf4nno",md: "7y5MVbbSneOutHoKYCkO4ZrohAq1d2e.IKN_bctYctw-1739102097-1.2.1.1-O18w_N4T_vm7MiGCKHq03yKTG1h6vlfLVIezjXy.RYQwyYqL3nZEbf.GPD041baDh38YQaZs2hd4ne.a80mOR9qU6BnsKVDuD70t5pSdGGc0s5KFrLU.3z2Te.z1n8zbWxiowz9b6eg7OYVK48T2vu1EfaV804RX2Mva8AluWi37AY2Daup.hWXneEr0SZtxYk7o4F7vkk.0.mvFYKmajpy.kF7WpyTg3hlvVWS9oc71jaMpg.AT3vDDVwUyvd1bZLebAuTXFiIro.vrFyQ4cOKj5ziqEdRQXUxJNvO.MlIdAkck3yqB.kZXDc_tptp.33lSn8qCeZgYx95ZRgPB85NwBRt0NFcRjjhKbj.9DSb3xs4hxScP7SnX1MhImxcvZ5zkztvplz_D.Q9k7IABdJ.6AR72zt38nPnVQgIiiC.upN8.Q2niHMn9OHCJyV.rPZmRCiYHJwZMBIV0dttVVOYwCOD1yuUjrqsLz5BgV6KlWHwC8DSLV6HH56RDrDZv7mWh4bnDI7jI.U4.medhj9J.6aDX.UwAdEjgUjMNptUM34v4.AbJPGs_KPS8qHMhvXFNUF5Mu8ccIWOXEJ59GEJ84Xg279UBZQLpOOJ2Vzh1KdqN5a8F3SIYtw5JLmqlslAwPfNKyFIs3S5EYF9rMyCsE7Ug1fC2Qs4._MHWp5oiuIQujPQ3XOu5BdDCCTxWoJQqB3QsclqzQTU1xf2J84UMhirlRDYzJ7sx94p6RPNplrjr8L9V5_Pm5RWE1PivHwnMxqAhydxjIJs__AqPqbSTyGdY7heuoSCXtIr5lTr_sR7nBadZ8iQ7pz8GDC3LVt5PtPX2638rIMDp.myO8cUEzGELzy2qm5fMcdV5OY05njH86I2MRpe91925sXb_14Dfhl3bs8kYbrjDx1RDhiKGBF.3dG83QyBjg2oL.pU6iV_aa9jNAVk.ozHNuDHbw7NA45GBUZAVj.WrLzMz0iD.w9ezPgU.LnZlHIobNSHGXx36rWdG9qrwsN5Gb9GHvgT.t0VaQ2rYVFULxdoDvROJwKPNMbfRSOk4gUkBqD7relQT5cfbxbrMPfjbXKZijeVhZ4Rd4lKEZYSr7_Brpz8TS2PFQoDf6jwswMWvlDfVyzNPZPQVOCCmR7_Df4bZhrin4TrY30s3ymOqaiGqEuBGO1tsEvq11vT0ZLVHS2itGD9C.uK14WnJl3qV4srQASrm3xFiY_nQoakP4d3lv5IOkc3Tv.mC06ebb6_DeUBddYLPOyDQSMY4FbpnmR.HPRrHkJ0.UU9ZBJjg6Tu1dDwM7aGSDIZBmIukEoraYT.3ew1kQJmuclZOWuCXp7QtUex0soFFgCMZXdb.hzWqjjUl6yZjg5rj3Pa0QZJ3HcHFEOWsnZzUjUYdcZqd6tVueFIg_Y2ysgm5Yal19dWO.x9yKp_Kt973LpjFFN9xA05n1hYUV3623KvasZ5Zq6iqAZaEMj8cBbHq2Eic_2_OAG4jgaTrWu8vuNqMERy34uvbbtRKY35HTJ5n9W4m2OqsNmsjIUd2lrJuiFO8LYU5EqKGLYBXlpKmwbTE8wdtHt.eKslZI8Q3eY9WlCf582.XX3_YZ2Kjr2D7TsB2fFZM75hla0Wdmdzd36Ad7tQNZpZSIbkLfGR9jv6olhlkJNm9c0KrhuoNhw306AVQTMLitbViNOk75J18iZBWSGFdgwvUAp0mm5fuuZXZApUE0.t1C.XAJdWk1lJjnFjOgZ1LhGMRo1Ye310hJT5CGi26.5.HxM0_SKXerTE4iBIHJNInfSakkR80GJt0QmTclZHVKMuENL0ROLgAr53WYeUf3lYfT1UAHQUss0KxKcoF7z.RtDKPJQytcKeu0k1sXBu_V4alP9x.P5vVkhzLMpTjz0u8m.YtKRaVCslMDFpHEQ.BSxu_vPnwErATHBGXMd3QASeLa1sgpX63MRDjK5uELY0M8F31J0Hir6ESS5Tk2ZA1zEj4N37Zk12gGlcYaJO2u8dMdnqu2YYmipDrW97n2Meisy2XjbLRmUFZ.rtIduCTcZ5j5Uw97Ig_gHkzzWUEqzypM7Weohug6UdAVNN5KLJl.m1QF7XkBXDxOEQNrhY08XFc0tl.gyUdFxlqpyD6wKiOes8C5etDJhi0eCJk_fVvSNTb.GkW6vEumAECNCZLcZhmZIEcBScp1.bVBb5iLEonxJjttoyhig792rsgx.YGFSsd6G6ABKTzAJ3zkCmQ",mdrd: "XPmFvgrAMDCp_oy1Ph6EnTavCwQbazq.jM8.kWjY6Ss-1739102097-1.2.1.1-KOdLsLSH.RbNlF1B59aIww.CJWuZYRn38ugoGht1CvPv62yyCzSh_0hBx0S9I5N6n2NpQlRhz4p5WC6eZFJ.yjiGnlqthBFXQrl0m82c2bFBDvKss_4aHCn6DSj5ZVrUi79HmysbF08EzblkRJbpRAJ3Om8RlU6oLfFJCOFSrkm80CUD9V6kkMc_vIZxbHK2nVbJTqIBSWEtKz2lm_3QbdjyjMOHKfHVjc5Aylj6tgXj3_LoF9Y_8YRXOKg6bzs4L_3EJYSMN5MR3RcXfc7UEM6nws2LlUI7pNNXJ7LwXTZs4qJZrXSO4F6JYN4L06fLTxSQndVA.IwsEaex_x_f2JYqyplLMU1fjuJbYHpcEAiTh9DTbP.OlgqTARqJ3UeaK7vqM8aV0T9Yy4gUgL7QgKg7KD.RGnpwIn_tVGxutnkmEK0krV7xImntVEVNlqlSaEsSM5.tufP_pe2zWT.1pCT04Bef4._Ze0fJw_6A0tMejdzkzP.Qdqy2viOte0W5vox8iV.ClromemC_z1IR2I9912CCzCGIcPRgTfnkT7zHYnHn.Rh3Xccku2tKNK6FSBv3PDvwxk5pmvS1CjiVjM4reQEqdOuYWjD9FF0A5_5q7.9h09oGBobyG9LdhoL7UHWmlUS5pRo7ZIBIFtfS_wNhR2JHISkPrYbAxX36h3BCLWxg.nJL8lXaBtARx5gJXtJ_Fs0_4LeZ.an6s0dBGKegO8ObJEC75RLCGxzXs8HIExBqiVcwvDle7L2piSeM39h3jbyYUxZw5iYW9sT2jY2a1Zsa6uAJTNBldiMqDtNi8wcjcpKD7oakcMDypqBTZxJ4Vj68U9guEigLmy6Ka8sfUdohlC5CPXR7DWwjHyxkk5sk2HmJBEXQrrypadYwleS8ULXD8zo6oiiaX3uhghTV_ljDfyA1g17MxFOtr8dvO__acSWHABs9TGmrR.Bcv6u8MyLOJ8_oDt0j329S1mG4UhuiMkjsaAj0Co9y1UGvm6EypPWoCEjXDw2KFJp.DiP2fOZH8lioOByRmpv5eGjhdkqaUK9sWXgZSpSpuWj.7kkikIgc0KnFd6V8CCAtEFxcBIa1.27OoKi7sQwLXxKtcATAr2TJSUx8_I48.rnZpijv__98QYg3ndIE1Qnn42NBUCjdFediVEal1FVerekd.hzOeKXuypqZVCpzMKTOQnGGX79h0q.HUDdGkDxZDJwCgww8Y4NRKZC7_OByUv_KeicptGholjtDEMa_8GO8wBsQaVYEsKo8z3_t_i1kfls2eCDOOn9rury2U7GGd4ucfTbFyKxYhgVJy1pxcDXZWzla_q3MrOBZWzG6onfPNWqsLyhgLlSt_bZeXPJM4TNmwfHg3uyHK0Y3.shiqROJVr4iJBJfcwf1Ky8WUs4Azer7Z9Ewx66oEH6qSEEPQF_J0EDqqNRe0gaJ5xVk7zPu5S80h0YwWMeHqteC9FgYlWB9Z_unRn7OIHYEHSJH5CcUAgaQaLh7UaJTrrT6Pv8yLIQD.lvMPoSbpbVug1vPYE4AFO4IGeiS76RPqFqh7YGShIBr0qazfRLJ4WJiTsRjcN4bl3ExOnOvpx4GhhWdcQ6VwLEY05OeRrolWrDrkn.5cwSPEoEztYzvknYyfp9f_rkbJd2pwbrL9AdoVqzvbugrFgbpL1BKbNwaAEGlQMCmyrG4EIyXTeJyDaojj2r39eQ6JraZ9x0BWYQn6zufArGlnVkqOHRUlDgaKLEfjJ_iPuPcmxw08UYT2aQM1mQ9ehG3gPwUkUD8UkziJyB0EnRTm0ahlQOk9BUruRRf0A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3aaee6e8905d8';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\/4792508361?__cf_chl_rt_tk=c2gBNRzgUtxvlMK0gfFzwGboFhbZQ0.ac8Ozmdp2VZw-1739102097-1.0.1.1-nVyC0GTO8CY3y9hW.XH.H4_lcFESr_LOT393mDf4nno" + 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