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-209717264453.mit-edu.top/post/4528037196

  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-209717264453.mit-edu.top",cType: 'managed',cRay: '91104ef16ec33b00',cH: 'iNbWPGjgERL6SxcAwWablLC8_eIFkHj5VXhNYM6SOgk-1739402416-1.2.1.1-AxlVQqCMKuJFyn57X6tN3LTAzdxJwjHz3kzI6A4kt7FG1rMdiZydFrr.v4TCiLax',cUPMDTk: "\/post\/4528037196?__cf_chl_tk=x4rsSW9nBqRebx9IkeaE0E22KhFW0JwIa0u6vtZwlGo-1739402416-1.0.1.1-JK63m62NTBMg7zVbZsFURawPwYWj0A5HMzmAMuUOO9k",cFPWv: 'b',cITimeS: '1739402416',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4528037196?__cf_chl_f_tk=x4rsSW9nBqRebx9IkeaE0E22KhFW0JwIa0u6vtZwlGo-1739402416-1.0.1.1-JK63m62NTBMg7zVbZsFURawPwYWj0A5HMzmAMuUOO9k",md: "ql7f4CSzRtqW4xdnxk4L.mXG87i4i6pnhVui1tYAn4s-1739402416-1.2.1.1-Y1sLA.qMWQbCFABwOgSct.ocvLhsJvkckxEzZ4NRBuOFXmaCxgl0pL4M7lozWTbvLee.ZmBPxlw9gS.8eY.xCnaLDXmLwYPdFOrdn88915o2rJ6kb_Pj4pW_OWL4l4WmqaLcdmUoxnfSgV4z8S38sgmB5rLlae3Kt7mFueTKPRax1Z4zjCq.EiRpwn29kkbmR9ChOdCLUro7ZzVpAbODepRgEcPLIkuH.UQpsFnzbVrnATC39iaPIjYqLKpraL0Kc6bl3PQKT9eT.NB.0goLlz9ivB_JSgK6FIjzdPfyHCZ0sG1q1C4IhYAiEalub7G.dNllYO.1q5ipeK0j.qTR9Iv0lxdq_2V5hgy_Ep2.oxRj0bjXs9hOJYV7HCw4kQmWY3ziKP91l1X6fkHfbnl67K4iInaRmrYvLjHJWA7nUd4iBRSr46lm1eBY9PizCYhngoJRjcuaoDEG3Lq.FezUFTutpDD_l9gH7HMoOpSzF._Jw0MViOjBhLZqiC_QfFGSLPlQzpZncGzkMEnZtvUNqAQZvMMpWvjDPN.Uddtdl3p0WZBjIK3yunJwrLhciJHmLmAcy9gdwsMHGt3mMBqMHReCDTWBo8.8rOm5VKBx4Jv0PvVIpd8evDM.0Y3Cq09zPZPOpiGf2hCeyvU26pnFfji6rD6XWi64IACwRARNNaMyUXf4M6jvVmCJX_Os_uoRsP8dI.bEqLaarmzCITWJ_ThbdXX_21Fif85muXTvOoOxu6jkzKm38754bz4zgHLQMFWyFdJi.oZniOY8DALpATJu1uYgL4vunB2wlBTzTigikhKUjgWfwn3i1TO2cmpA1Iow3x4UfAbjhbu9vDrfXLhwrRT.vlQy1RBH.qAZzjZd4qDWpiAt.x3Fgv5GCll0drKOttvRK9AAZJgdj827Ptvz4kbr5JD0PAgnHctIInkVGz4mxfU3v2778lKAhxvlLtou3RRSrJOu6sSkzONzWl4xwdzrmfAEtpz0_IjZgox80GLoong7hJc2uB.1cEvW5kAarUc6awxFii1.33SMDpbTXbHoGa1cBQ8K2RmRWaNv2kNcX6KJRYQ15v27utvAFPdMDWQJUiib.anKNskMYcqi0MqhIXQ_FUK3knn6EkhZTeagfbgEd5FWRK.8WcIRqd_HBDPQSfqjJu9Uz9ALstjQpT22mqp8G2TQqio8a03yaCxow5s47ibOvew8uxSwvN5Us6sTzjOazHGfcDqAQBk8OVzGrjUCB2uBSJ1rJW793oV2uKEPBOGRVe1i6mNoAdBeoiWzG9xs494CtnztPFHzbsLQ3PqVmHjMJG6L2zfcRbIYGdY8UrMmHkXRPKl99yLTiONK_Kbg2uwOhRC3ijrBKsqZrn5ahT40WfLLxJGvujmMhz9HQFZGMIKBc4VXXyM3V3Z_2wRtExx4hfaZLD_KvPHBoomuwkY4MR8AX6FvaZ6B_P4BHHMbl.AXvsUKr_bYqyn6YrKJTd5jMt0I6tR0PIFeGxA4xUfN7wMY2LSV0U1k6Xf57ZyTK0byRvTOHOgrT8fwHFG.PBXKT76jiQg.YlXe.S0b_pDYMWAT5YXcHFJCM4nKp7eYeLZC0xfZrMDVlpoIcE0byNSvydCng7Fgohw7SJ3O7ZS9COh8lYmRtnSj53va2xVMnsAPt_S6saFun.6k6ZvlFoEEoJhpnND.qW1a.ctoZU69SOlpWuPsRZHk9glMEQKU09LnWtj3FGLF0RlV6d7YAIqUZ2Zwli1dFdaAqUNdf8lQy9snd7icDogZUC7BOAVYIFHDIRq7BrNUa6NwGqcKzBRgKrcJ7_4L9QlGlXyJfV6j62WMXy.WlkaejO2d7oRs707DfYz.Vc2b1QfHrjSK2iD7rALs8559iN5VrfWNVGkEVkLwLSlSUK6yTq45lXloKwHQtFd.xGh65JccrG.XhGM84sCsFJMq8KKepp8_2Fro4i3rhL3iui3Fz1ym1vzgDSMy7Mr7l_kdos0KsJSbBVCQuQppPg9hUFg_4UOl_66w_fRJ12rlpbtT_AHWokeqZwwErIV_MlUS55rdC_YCB7PtLYK4zrId8W3L8Z3T.YH.DvlgzuzAG2Mmtq9Nd1ocMIbICjFA.HImZ65oLFuQQWgRaIGqHq5DBAkFYjr2PFbZHBnzvfwy5BZDFXUTBUzU1_AfSVfWc64TuP2LOzEuNuVcRoSFnEXkbn8v0c3qCZ93V5nk.2XOlQL4.1rCrK2Hx8EVhAke",mdrd: "dYmAQFAYMt1hgMcv.oq_pyUx6XxFdfnRoUTDZVA6n.k-1739402416-1.2.1.1-Y2arrPvHtYobomEcleFN7tMCYUhQs18TjXLiQ.8Smhz4GYvvb_oQSAPWuDotYybQrgNf1FnUhBSOC5IYnWwqBN0f8sD6QlFEP1xGaXOxI9WdHi8cJa3s7K5Y2M9Dw8T1SwQc5cMSjcNn6Merzi5yk4TBp9sESKQxosjQSFkwdIMPyy4KtjmZzboYy4zcM7PbFTanYSOB1ZSpXWpCwLbeM3wfbf2B1n8MI4jmvg_OZ_CdeTGENV.vj__kmRI.rHSpEAo4k6TtbyNZDCgNEjqq90Wukz4Rr3GnZAZJPnI9xaZmaxeFT1dFH_ZW4RFFXL1MQ.15_ghlJO1qeo9UBRKL8KzQxQC2A2lzYM8Sx4a7MQ3EDvjJPDfkUOT9qrlNlwWvgCOD5h1JZE4wdqus50tQKj57uMcOmiKa8FKob_oJG0JsBShDPCD6e0wcCptYI4.GUHsGsZsuO.gO1V9v8gRORPvzCZhjwokWbjS_YYNyKjOSfn70ykIsvB8h.Q.mKCsgWqylnbIzEsR_Ov9A_.r..KEndxQ1s0U.l8i5UoOGLqT.kN0KioYectLrNn5TaA4bo0v32wMy7KTv8fAfdfVJ4z6vMtYYQg2UMcYRdF96ElzMeMa7juJbLzYdeYdi8ZI3J2SkKBIPVXPrEM9Z4SheFpPpA1UCXi5.M.nZHtS6TmQ4cSI9lJfA1O5gWXQrhrHX237tSN3reMnzvigzzHeJg_WxLbJOt02x9c_y4ennaLY4.eDPIXjCDh3gZOrEknE1RZmY92L1zYT4NIwp5B7hvvxVOiLTWyfZdyewYf_RohxCe8needEbmElijv5HsIVZ9wsbfFN0cLH1TfY1iqanFGo6OAgKM9cW3g8qCYDRlAgZO9kcaSm.FdXJhYtgHhmt.c_GVFSPzpsLhGJOBBFheDttBZu30PaTmTH16vsDg.kLJI1XXV3HJsyiN.Krpo3UwxXdbTLxoWFnY2EYnZfQep6ySlL5VwA11CwlkwjBnFeRw8gJPyt._EWYB_Sf_mVvQAM_onk8cplrwaEnI9CxrKupbDegGCna0nAaBi70W6ODTg1m3byQ9gHigEgDUOAGtsfvMpaJFJM9Zs5mVYAHxmbZ4URRPfkkJRVWn2SZe_wuwWNnuCq0YN1dTTPhXWVwgOxg4yYiyPMK87Y93LfjbS2Ybi6B70sPM7oSbPLgOUYQ.XMDY.WVerrmiuS4DG974J2RuSpNcKt0Ns3jkYR7TIs_4qFRLzNdIsJ3si4A_8pqfK6UV8LEYUuHRuAdmVL94faeSbXq6jyujDgRlHs10VZuiBwDAYwmvWpZDVLvGD6Z6QFZFjJdOlvV4q.3k6eTpXabptgU_JuUgLpJS5lT237yOFuEQ5.DZA1c9IKlTkMGKTiQ2pjEIvhQsvWm38eRBQnxoqmkMajkoZl8zHwN4PCLzWwgN8GozhR7YcKT1NJoh7NRMarIMkGq57s7rr1qiYSkiWBfQ01j4fFiXyPk6KOFBmYPdNKqAmrGQwAbMD5vwe9lXOHM6dvrZ8wO5cUClKThQXZ0I7_EZVNVJoKj0S6oYQ0D6dJ9anZVCh6hIC9D1nLth9RU_1KOmg4jqhAkp1ZoPaF_klRDJlMGMsDDMETmfNY1l8gyT9QWq2Nq4UsxAKFWlwNVjrKUSfr75.iCzeu1g8lhlkh12xpML9wCJF2h03mMpO48bmu.cvb2uaTr8alJ5L03BXRco39.OcGGCR6y9ff4PfTdFhcSIveQgn31bJ4SgtxqOHI2dYW8hDzovZiUIuajNZgbamPI8As2sGXCwLJ1KBeoZnHb8I214A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91104ef16ec33b00';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\/4528037196?__cf_chl_rt_tk=x4rsSW9nBqRebx9IkeaE0E22KhFW0JwIa0u6vtZwlGo-1739402416-1.0.1.1-JK63m62NTBMg7zVbZsFURawPwYWj0A5HMzmAMuUOO9k" + 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