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-109574407214.mit-edu.top/post/3219458760

  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-109574407214.mit-edu.top",cType: 'managed',cRay: '90fae84b4d6920bd',cH: 'jOeQXN4dpjbTPCbNKsKcFDWq8KxOxRLynuBU7rVkzlc-1739178011-1.2.1.1-1U2yWZXtM32QUqPacyjbVolWwVs0PDoUDJM_QOiaGmNsE77TJcWpkprXyZEb41b6',cUPMDTk: "\/post\/3219458760?__cf_chl_tk=u0mNAUwUmfyvqfgosueXdxno1enNNrev.CQvvZMCS.Y-1739178011-1.0.1.1-eeF.sbv4JA.O18Usma_hFcat0RlReV8bR26WK5vJg_s",cFPWv: 'g',cITimeS: '1739178011',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3219458760?__cf_chl_f_tk=u0mNAUwUmfyvqfgosueXdxno1enNNrev.CQvvZMCS.Y-1739178011-1.0.1.1-eeF.sbv4JA.O18Usma_hFcat0RlReV8bR26WK5vJg_s",md: "kVR9tdL0Xy4KTvkf_odTZ6LVaUEHgn0c8A2_xpaLwgs-1739178011-1.2.1.1-hldSGY2jxyFah6AUEwjIjDtQdF.J7v.3xcoWNaNbqvJ.H0OF6QfpBQDzf4exQ36uvR.f.k5C4ZtRbzrsBc65PSdxZDoWKyomoBZtgwxpAph68LjjP7gaWLb3xtKTGZNhISbBP8qgUlW7HjMdQ3u63Orq3.GrKR4TxLwF2WyB6EylRKGQrjumKj34rdaz9v5ENjrL3jpgtpTr8Fv0pl2hCvMGseI8zIL2Es2iGIWhNWBE.WroLaWig555.yDitlIKQQXCDlLoC0kOF7QjtsTaKUVd2s3pohku.88nlAvnrbhxnwHC8UyIx0fLJAutVyu2gFlRQ5H0xWKZYE8.X.xqMeNFEuD2NBrOqPB3WxNNiRAYRLtVDZ1LKAUV0Uy7mi.DaAc89Q5VjV0VTFpSyzXqPDRSYg8U.cwm5FH.xY3Kj1XePc.uvXuAvncWTMhUCOLS7IDwaMcuzZirNr7mU9buT368yVIY5cY2vPbs0zKIGaBw2fT5Q26xWC1dElLTVWzk8LbJXQZTSg_InRgZQFiC88_5uWM4Z1cio4PgRUPpk2DqtiDBvq.pgEYR4s_uHlE_td23e5bGk2B5f6ZFMFnia7bIHHuW2YP7akPGwFfa5q6DFQu1rE9JI24e9L9eb1Q4XgbwP8HS836O8uiAhHSbJnT33CeT_dBiFSRHhBhdbDFY1lzR_YBpPnI4gzzhr6jOMp2dV.60VH8fazQhtMoHqVxLHpVRCGHvXMs0ODRjMKDNj4X2COz72lqHy733zCobI4f4C04bTej9P4_6iiQO.nYizBMlUFu.lr8OxhHxULx833Q5fEOTikerf2LN9hbsh4YixRjNHxnftQjx4xEuybF_Yoycy6PBhoSlbN.zXOwFPfDCyqxsy1h6ztZB0WXhX4uQgNKRMkszrNbZtu2DZcIYHFmsZ_1Q0ArdL03RZcj1c.9SKOKMbD_28kY9.sDiekdHpHxDhEv2a04L4ypOtwWwB0oiJPzG_E6LMbaC2uWO1yo5Yc.Qa_yTJLuzzYSO5xcr5fyKPYLvY42NmPhMcYislzm8ky0TXnIRB3PMfU1pYAOlUfBAA5v7Cfa1EklBjh8y3Lt8Xd7gVnzQa3Q.Xlagfbu4YCxTwksAu1WHdwqYIUH14zcdOdPVtPRFacXktFQYGxHKA5bObk85UEB3p.Z.3E6ygm.UdHz7uYlr6lNRSTNsbAMDC9dflfyjOuLTov1VvGnapGNoHgQOIkgQPolQgpP_h4XKMa3qz886h2YPD6XypdUoJ9OjxNMMz9DRkCNNU5PmqAsRlmSqV6HtUZTAPdnuuVhTSHn2mSRNjR7s7kRf1aZ26q_U0aEHMLt1WrGVi06jW69prqcgwi4aM1FUwdbtqcXGo3m6f.fFG6XEmFY.RsRLJmjQIw3hNJCt5sEGD97zyhvGEn71JiQjqFyHRn5edOssybTuiNNqNg6YPS8fGI4DZY8Pqm9AcPcPY5Qk.3ilO_lrhNOVU9XFZ2kBxj8wohVRoZ4H9o1PjWCvNo6D7RDXyV65Z9o2A_pp4xceaJOWB1h2CkOB2dhVrHcbxftqZP.8wwrrKPetIKreJw50cXqRyDziUXhv9z_bO0is7n5NLaUhPBR6bIF5QXtsr89jAy6vVfoZDMh3eBokNpoFafNgGEtwHCxKg7HCrlvrH9hAfLUZdgU3NTun16TDc7lh6aMsKXqIRv.5AvekfZShGVG3JKCePLLFUuNYJKSNdsf7omjccazB2GxeASpQrSwClRZtDRT7tdbJjwX9aP.xanZwzNET2_ZRk3zJUA_kyk49S5bRJ9CnYWIxWrKfOzyGCyMBftWyLVUjhVgULfyfTjqrkLTmEi9Aihk1GC6V_K6ClZhdCqjCsoH2dJjEdtWiRCQUcKxtfTSW6l4fnuKwkrVzbi9SpC3OYESsjM4V0JuEvCkd3W8d.2gdGe6p9l7uA5FVesbWtipsOM1VRrA5kjcYiuUKd4z_uhuCONj6ZMHQh2N64NM0911Vy3z1v3rNZZEMY.qyOPDp4Mzup2Robl8Rdh0iEy.QzZCAkaDAhXy6Rs7bqnR.0Kq8qk5yn5tInSroFJG3.jZEwEOg.H_LRquUH0R7u2TzFpiNBPf2whbr33fMhoWjyBuiXCT3usyvfeFFxaAu0.svDdKDkHY5Wr2R9vBRVGlK80desdktctt2.W5LU8bliTIKWaGZlkgvItHKg2kx3imBhhdHGJZyrDXNUo6xPM2qCuci",mdrd: "F3VpbIQgwjFLpjkKAUXcbo7RkEMsLBnl3SLRGK2SCOg-1739178011-1.2.1.1-1Rk30KJtJjPlkcKbXTfMka17q1zH2AF.WRZJyskXo2XpfSD1B_RrY_ZNiD4UDlNxdyOTryk6IkO3bgHan6wdJoY.NqIf53dyttbdGVYjivM0QD7tuGXCcD5AiI_e9ZHMIGtQpPZ1lnGaJLP37oeORYlc2qN.j8zQqANSLz3OOj6MkHsrYXbrMfYwqGKvfh72hCquCuSLm_G5gzme02MPhPnfe22T7CEDYcd8Wll9sdDiVY1uX1oqnQEsaUS8k5yotB0QsC_T2AYMjWOSH0PaTouV5YXoRmmfwO_1XXEEEsECjTzmAgDFMw0SSFg0ilIx7rDWPZn05i8RAm7PxoO3tyLVioWF9HJsWgH2Dv2Gcu2ze_i1_CeYBgQqP5OkHTWCw7PvTM.q6yFIVSW26hfddwrkMyzCRlg2JHJsrYfNH7gaCZKC7yKue.ziQ2uUVUMbTQuzrkrz15Ii95gVbe8sr3fdkB4xGTMvmnwDt5EKRcBf9DFAr2NT7suyARYWhxeGQ7TDB7RQVkTukSVfIpWLFe6hIsuUd9wmf_UK0imQWM2VCorokvHCozBZoQPnmybDtVkv.5BHsU75BviaHXfwlz4DCuDztJ5cW1KydvS9QFR7J2C498vy_pCbLFBsUHjgmtl7DxO3nJEBkJqRz_UrNmYn6y3Qp1ZYekj_AWec6rUMAQvhGmF2X1TG4ayU9bzB96lMlV47v_LBRYgHFCUGzCO.meBBI1t_M4QubNYeynSbkt.QEB_MCYmhhC5_Krf9uwDPQY_yKbhebCVJYoENAeoVQwVwYkLr3PhEQxQ.UhbPIEhe3z8PFmtgFMDDxDNf9VyJ6fiqRLjHQsoO2eMP7kJy.ZeH9rbD_Ihqw5ULUsK.UYJmLSB0zymjZ21ML_.jJVtp4WpiFI1rjJdeFV84Hbc_TR61i7UF7q3drMy2lDVeO3BBfdWhX_KFkNLkaZqyf7MKigR411MVPtYa8vscdwCT5vV9CzewLWq8LtWO4Rcmcdmy5zjMPzHr7GJe6U7Mwd.XaKNopSbUVXhvjozFa.JrxXNpKs58kDvYm54tYSmT4dufFPvQelvEPhuyxNqQxidnrbVe9.MKlkVRKHaOnaStpaHRuqgsOcjJO2X1SJTV6eWauBYmP7WpD0zDllVb69utNFV._1DK_AfOaN_Bj_NA96EXLEP9M6wLu5N1bMDM2AhzoXP0GIF.tMM9g6Es5WQX5kg_zCR4dyVboEgzhTzRNdWMvLcJYViu.HuHYVpk32gXMqEmgU72kk0jknrS.2lnMt_g1rFqgYqVyrU1SuBS1Dkwwpz3qVzKMmEsaUr4WZQ8JNBQsVIe9NmdOVLBVHISgig0ghZ3BJpMZePtLlGV5mSLhFJq6GiZ2RUDdbgR0za0UbxlhTUQ9oTHVRqzlPinbFdX3F9blu.WkGdCnQIMrGhaOIgWNoaHB1LowIr3IA.xGGCIzffIC0RRjorfMOHnGCFy3R3NEw1kHZDV9LkXZ6fZ1uQon_Q9bUdzulnAOuxgGMMIdTTzh4P7Uwwl6zxj7fE__WELlkW65.4_WQapRQZ5CLpbw8qD5bCi5yTEz1rvfrQ9KMDaWNJODCpVQclhHzLhS6CTb_yNsvtirlH8nihjKo3Kgz.Xg8cS4x9_ataYHWptqkGRQEoxc4Gwn7KSooQUFokGyQCvFG7elf01cz3B2MXuw2_jCAWy2yRwWLiHYuknZ.iXJdhmyYhfCCef1Kiqkku.sk_oaoTcW3f9S.Bxj8wkRkUMeG2HGVeWdbhRui.6Wml7355fIMPtFd6GrIzKbD8Si5tWwLHu.v0Ynmo_s7dK8ZDFhUudoso"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fae84b4d6920bd';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\/3219458760?__cf_chl_rt_tk=u0mNAUwUmfyvqfgosueXdxno1enNNrev.CQvvZMCS.Y-1739178011-1.0.1.1-eeF.sbv4JA.O18Usma_hFcat0RlReV8bR26WK5vJg_s" + 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