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-affr7g4cx.mit-edu.top/post/1637925840

  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-affr7g4cx.mit-edu.top",cType: 'managed',cRay: '90f3a93f9ac8c950',cH: '46fJm42NSWevmEQZonesdM7Q2kqFSU56asnyqszBvRM-1739102028-1.2.1.1-GOeDlcFkyO84Phd3Mbhs9BGuC5xYfA_2bYrb7IewiMl4o05DVsjxvVzA9uLSp6TX',cUPMDTk: "\/post\/1637925840?__cf_chl_tk=px2H3ik6w1b2XnJY_6Ef2EhIPo8DPnXdymCJ8veqedA-1739102028-1.0.1.1-DW2DU1wveHSZC3sy7FWA.AycmvagYc3c25bYcX0rJBo",cFPWv: 'g',cITimeS: '1739102028',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1637925840?__cf_chl_f_tk=px2H3ik6w1b2XnJY_6Ef2EhIPo8DPnXdymCJ8veqedA-1739102028-1.0.1.1-DW2DU1wveHSZC3sy7FWA.AycmvagYc3c25bYcX0rJBo",md: "2jiiAptBmNk4halxrjjLt_BiaEss4hZ0sc5b8RyTz.I-1739102028-1.2.1.1-ve9tAyCqvq20VOVPAeEAr1RNEn7Yh7fTziKfQ4FpJGkwVNjJr0PZOm1XV4tSr1NcotxcWQZE7xBXfgP.iAoP_rLhsc2ODMME.ANzUaIT2gXhuVHDL2Yp40F_AIZl_MUmckWbNa5JmJdSyScfzlaS4QCWY_PWlM9JJou3c2UkYJKl77uvAJbLBOo8S7O6EbWNln36XSPOpaxD3J3bJg4Q_azRZxMJ.7Sm4qRjQPP2EVL8ZIsBkZeGKYw0f0D.YsDxJFPAch3iP8jmYP2NDsKVMYNTq9bvnRoiQAebIbvU.cbA.56MMUuz33urCilwidvf.NGb0Rr.8vuKKUsW61MaMpPdCVK_OrKhk0soQeH2QdA7qumhdnoeXljm8XWyXz1HvqrxdWaeGY8ZLUaP88gE2yQfBJ5ifXeFeB79uC1cazB9YOxMftqNOCVgVrdHnrxbTIcFnxWk_SPpUY33y0D0XXj3sgRDnpzf8iqqy5UyNO_YloA3_Swm2xYxbPGf6ZT5l.h_KPXyYq3xTctmvlROVRzlxCW1YxbKf0g2PfhI7MOZ7PibW5ugKQfCd8xurUscNTMTsdS2.wT_w.4ppcv3szr_EOd3ysppyAdmgqDwBhM9k3wXhmDnU7DVd5F8YZjx5609ZIDt5DDK0hW.mmmdKNFDb5D4S0i92Qu1PV9nZa.UbVXHNM.jqGGRyagVpYq83lTpwN2vCoXilZhrkWmS0lySXl3UrjXA5gW8H1hwtMMSXpqVLflpAREiuXr45VgiNEso7w.dulsJnqAyJv6OvZg7DLhiARna1cUjj3Y70HHvPPa2iHogGLKw1tcE7gEn3HGvRtzmsDLuErEQTEyIw93.R8PVohOvkwzrwjVwHwbt36X9Gl5CZqdy0atTp2j0kmDbJGSRzAv5N0G0dOuvWokddxsqwPjsHGYM8K0ne1aG2nLIUv.aZeFjw_fm4Evy1aHx4ziY9YJG3DEwo7JjjK7feNOZgtMUAONZCkhnWoMwAr4NGnYCnBWMJ5O0KIaOXR6o2xQOlRTeWBufReE2_JQ9Z7.43x.01SbKUrvI_ZcUv9n4Enz_f3MebFCsh5pqxsrCLwyOzC5B2D0ifa_YX3WPjizByKiNTOnSU1DjxEwcSdcNbLRYTvlWStOKWmOoCkaf5uEkLFjJR2i5AFWhA.24WmzdjPZNic0JmphzlYwDBUKRedXNznhiZL.hAk0n5TUp8uqF8dLq47JZ3qxCZrR10zJv6sazWX_W.hgSl10SrhFpn35d6SPGMMY3U_fZXE9jcJQou.aYWoiMsc5JoITUsxPhuMT0AqXMtF_q4t47hSfJAamwgmQed9Y9asESrSpv.1U6Mf4dttv0wretVrXpROVMkhuEgpYAQCnw53E_ZXn2QCb1GbOKFyJ0W27UiIg12Q0QaDcR7ZT303cHsrB8E_C9sPoHoN9OWiqpF4f8vYmWfNPcubaqZ4WoDchs5xL1jz4OxSxyX0AM4ygTMweqglHFNjtQwDk2IpntCyH1bdjAeXx70r9CPd4HNEgoF7ufQBPip760_v85cJFRBTGi8bxzOjsFw6OUuLbP.fKiJrCeHMHh6ZWDZca7.voSz6xylNZQu7nfO1OPsIRabToIqqRahcwZ1eoD9n2E99Q7xJIqUG4alfpoM6KylP3Y0lLNsUoCaS7s9.ERrr.dhilUDudsmZn1wRk4_dTPHvX0A01cool2YUnt9t7CsSsBlx0ltV2tuEFYD_tTLqRPGhZwaAmEEu5jtId4B85S6x0TKUExZup0dhVNF1EvrucW_DOCx12C6hJ_NtLa_kqoIIsbwsRQEggrqN4QZpY5.NjJEJX.tZDkQmu3XeO7M5nqY73L7pV8aNmUI4qnKXcbvwcGT4lPTVU016AfDkuoNXn7mTpLkWkq39yEJkrFDomdqqKe3OlDOY5xk5V5jtniMYZrGoJkGE8zPGMZrzDBDSHzy0V_IwL91AH5k_4jIrRFxuWZul9a4kkv8NcRVxswTEq7XpQ_.0oZolvqD7B_GAJqWPtnczq4oPkP.MnBBGneJe7KJJkeOL7G86PkasaTGFuRIp_wXBxyMcV4UEgcAOrBlWXkzzK1oqM0y4bCMdX7r_WjaWb78ML.RohoB1KaCLbIF2oIaA9KAFLd3s2UypqyY0DWtWZi9Z8zQtJ7afAZ8rndvpxzCgutZpQKInAwh1RdUABJUR7rxYCgJtubGlLs4A8tELyceoR99BZiV7kb",mdrd: "pKBcWnRAbHPhmuBkkm6Rn2IOJuOh8glHR3OnIjq4Kz8-1739102028-1.2.1.1-YDn3UotTSFlSUMU3eaC1n3T0wQ1b9ar9CK_VEQ0BDZNMTgrL1h1xJ84QylZUvjLXThXfHdLmqVbyAuE8QQgCBGb5SNTSO5VncuKnSF6ErY6zcGY7r38eKeEKhslTXR7VXiFIoSlWDflOaQWEadVwN8yN.uUaI6gmjfm0SdVKRNBAdLb9nVO5xAHu3konA0yN2Rzv7XpwA6Og0r7mlhMORucy.x9N4J9XMzHUQd6gYhTAcprIvAYzbsrDiEpIK9H7xubyw2gAlZgfCNDwtBiQULF_7VE5XIndRgC6J1fo_WVpgoeXcDjty8gi2EigKZdAftUSwbmZUggX2g7lNrcNdnQFEFzTCQUKOOWt6kyvNZVvSlOJb49mbaKO3HTD.F4Fae_8Us6QfFVM0Zlf9R3oabqvm.vSBarDQjviE4Xwb7kywJhEHOWMYzqOkAtTnzrZA2kaQHsaVWjNhMmaOGVU3e0qyBBnLK51bJ1ogTyI7ERa6zv8EWYPigu2M5lrKgnRLiIwoCzoyf4Yru07JUTuvIdqXy_bVDa01ZbvSlHnrJQZST5Yajwnl0ZaJW1B_WcLRjRip9X2DuUzBcqDWwpN37JuFu2oj1QSaBoclGcBEnQVc1Z7ENJJvmw.EHnFI4c_.ZfNTLA6QvsXdlymwLc3amZ78Magc.zgtw7Hs2RTJed96CkNc5GADlFkc38PFyjj4OHbBqUO8nVzC.FKnzrLiuuY6zcNGx3fq5V_mKFvsfnpJn9j7iuO2XFw3p0FEiyLtKHJKAN_5T9t7fQ7twe9dxcBQDbdhKIqxPSLD2kOVbsSHQnhvET_OP.ajRCQ5yql1aol.M98Yy4Z3qbyrtYNf77xEBrE27bNhvWxDMXIvalKVMW4fit6c9q5j1jPfDNzNWCJpkEk7e7Femawqu74D64inY.hBBE7oTjW6tqkq.pPukOpTJesc9j5PXraZ.tEztUUyHq2DI96kWf5LyJNv3awS8Pgi8FZEQwrX8Aac4izKROMBy8.mpuQ5QZjQz7kHBN3ohVa.YdSgqD9Uh654Z5y4Otl5lMDrq1u41c4rpCjbMUnP33YkZ8H_XbLKjhwdxQ2TDS3VFlBWD0J6XHRjnLwF_fSA_6N1G4MtHKim8oKJmPgnYXmrLKNmC9oPrHHNpKqkuhdNyeZnq8bINGHM3hMOIxIk4n3c2YojZdwAX.AYdY_bg3QYy2mcQZ.Cpv7GFXdlV_U3yurMaNMxBrw8KWdQvQNHgpZ06Z6UlTSq4IMSi10ebESNlF0YmwATJuPullrrx1WbQfQGG4sYTiD.L2GoQDWbqZaPZvg5DELw55KiEcvCm4rEdUj5kqM0rGAizRjbHiB0skiF3flG8ogQ7sofQIqZ4_PND1omMsD8fcCzJPU.KRZRnTeahEJQp60qESxejZDLR8C28V.4VO2mxYdPQIJ35T2ft6dh04_roQupcKZKu_OLSwguYQMbcEvazX7zt3ZLQBE4zPcmp81GLDlrqXrGzEJMxewvIXm5nsCWxk5nspbA8y2F61D75dZ5fZCgdnWHMnG.AB6QNfrNtRBd_e9Q63rWvxQvla1MAMw._WQQ0FHR_9e7gaqmjnH5j6NV7ob7zvOQ8CzAtCiFDBDltLRkjPJEp8TSzuVyv.4vInVH5wzg_IL2mdUMr8LRp5NnrENdzV3X6fGPCTwCwO5RCjAWtc3HkOtckyfSCCed_L1VoHJw_vBxtJh6CC7nxPo3GOzBM6NgyJgwC74ewbqBn4Sz5p4IwqRFKa8ePSbyYp4fZo7C1ljOXcVrFgrkpnwbIKc3AnaUtig3RmEWIpbMB.ovhwfPahrVqql3qk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3a93f9ac8c950';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\/1637925840?__cf_chl_rt_tk=px2H3ik6w1b2XnJY_6Ef2EhIPo8DPnXdymCJ8veqedA-1739102028-1.0.1.1-DW2DU1wveHSZC3sy7FWA.AycmvagYc3c25bYcX0rJBo" + 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