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-affzlws33.mit-edu.top/post/4068957231

  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-affzlws33.mit-edu.top",cType: 'managed',cRay: '91104d7a7c7ac942',cH: '3fdA1v6xhnhYcgMXYIpfzTqcJ6wVZRS5gCbDsgvBZnE-1739402356-1.2.1.1-SY_eBL01mMlMBKo84.D_AHHAVrtsZTlQ_FII5BOjUc9LnHz6stJyfGdMli1scjse',cUPMDTk: "\/post\/4068957231?__cf_chl_tk=2teMLgEG7K_PxtLsEfIk_wtfVNv6gWc1NmvjehAHrVw-1739402356-1.0.1.1-Q3P9j_QwcFSj._gbWYXVqhl5Otjlbpzi6GYkl0Ysl1I",cFPWv: 'b',cITimeS: '1739402356',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4068957231?__cf_chl_f_tk=2teMLgEG7K_PxtLsEfIk_wtfVNv6gWc1NmvjehAHrVw-1739402356-1.0.1.1-Q3P9j_QwcFSj._gbWYXVqhl5Otjlbpzi6GYkl0Ysl1I",md: "oBfkxu4jimkDvldE3WP78fdatDIGOV0MafkgYAkp078-1739402356-1.2.1.1-YP6Anrv3p.lkg0ozgH73.1COGH_80vQjYWNAsWWarzJWXTgCCx_xGqY2k_Bu48WmjQ2RZC6GFjCB4oNzwg8aPd_MM0SmOeC0tRnrVQujxvwnBIRL.D4r_5eFXO.SXRXGU7UJxXbDuJv6UAn1.MmvkdUh4l6DozzbM0i8bjE12_B2laITRaQH0rI3yWk7K3e3pHFzRB3xi6ZxXFgPG6_rNWdhjwJU_MS8dt761K3ah.fy8aA1jJrhYjnKCp_mgp9QFumXceZWs6aTSqhiqA2vGDVmXACso0LWVNW00naoMHhFyYrxCuvxShG2569mZBMHlNujRF4NwSapH7eMlEVRpwin1nt6.1l1tDO8YERFCmoop2Ai47CMa4g1mupgVEcx9PGshEzBHimi7p7aE.3qbHDuvj5FyUAGIsw5NL7hJi2wTiyTuEmotaDl.elAn3.JNqVytOtpy55EA1dzNB9XIhepc0xtxev29TJ4vRnsgJM3HE0CoIbEQxgMHgbOQD80c8MJI.XDkiF6MHVALSgE7k9x8twh3yq9msa5K.FqkvCw.NQjQJfnnHbxQRp52JkoTf2WuDcXoJJdcoTjlITwkh2oYmPRNq_mWwmoSH46OjvlyaqGXy2PlixwqGWXl_jNbm__yQZlgE3JRw2_dMr1s0pofE6rOkRkxDeK0HFX4aWWvWN8d_1zl8pDnIyLzuIJNKpuHb5DBpK7fdJFsgalWQq9aDN7k4kp9Lg2Wh8x2VKQMHSKAuM3Sa4J4ki3tXJwt7pYXVUDejJOgH804_NaEapAFLlRajuf4znu8lslyetl3md_ubM_yKmV4wf.KyISBVIu08vSeAZmhXzSmPPMqrFJb4NunV0ieiwSaSonW5ti3CY4uaNEn2JDYXGLKBKdDHvU.gGS.I_6g6llK5D6G9lImmKbnvKIPjie7jwKAX3.p959_IzVs4gtcPDhCB33O1kWiLdBQd_vFKlU8UbHdCjClNEieKixcD1gHGsxIhYjR0rR5slqYxGc6c2iGIp1fRCcjVKqQbTW1RkSoSefELo2cg3fP8KR8x0dtX6VymsfNpDFQ2IhTxmU3reX5PiPalYMRKww.jG8G2xQeM71o7mTZTbf9zviuUruPtcYuyCfxSfst55vUdvsupvHT.NUXQtVhMjByZcf9fOS3_Bhyf07qQds9V74RCIubDReDWXN4Ka_4.LVBLLrQ3gEW7VtyGzeP0MQ07nbGshQ.W.uprCiIZhIFMMxJJUyGNcEBf2gJDqNsuEzYine69mcmn6ZFYca1rzUmUAdz6bp9PDqByeslMxH1VMREspgLrWrthU15_FposLlrzeIsrEOH2RRlywLEtdytiNEYw.XTNCZJyhajV0tDdZyo7el6JloHvaqAFET7_Xu8ajMrV0J6ruW8NJHDi7baZLuH9Ote43_J5Hy8CpcUi3VPLhUnsG_EDqUCzOtKCQqN4BX33qy41CATUWrpYIKAfWm3vJaoV_qRA0Vk0GUKMStHFLf2JBXJ13aV0B3i3soVwdpf1khaiqioNm0XNY.0dhdgvQWSMQUGgPP321.y6BQidC7ycdNCdUpKfGch8lQ2jw1Vj6D0dIzxiUyMfh71zDfoIS_pM.pY3ERScVPaRJiO.ybkrqYSlj5NfYYXHT8byP99VTvRhOyhC8sKI44atIOZgARg5TpU.Nzn2CJ3vL8Rq9W9Euoku9LAIJnaQAYA8w_ZHyMoNLBdh_sztP4pVMQ09oYuc96D4kWctjO78jiFfkDbj46gdm0TwWGUT6WQ4x2SV9VVU0tLlVJP_rVG6GdJfmLWg8t0Dz3Nyf5Tj90C4MN37cfgMRbIEnzDYqN4nbFiNZEj..t80JuH.1komYkycOUeVMNGHTSmUcedUtSrjKkTwQ4kD_mN_4ozKMsVKVnvulI6GntKsyICZ2SS.HH.4hYT84PYADH8Fix8.Og59R_XN_vVvM0TX2_ei90Ubq64xuQPGKGkxAa8QtXyLImhCqa0uvoyGraXTg.7JkcoDljz2TKncrGlJ8jkcejZgCjUI_ceWPwteDgZAgnxvzeQIQ1yBQ21qmX9s.K9PAp.bNa7PKuYexi2A9v1OqZ4YDZDf4m3KYWIOazyLx9SoZy4IjBSK7G0uXMMUd4cAQsGqwZf9UKWWlLLqROxO3SzCsX7fMuRkyz3oAaT.PbIynd3l2X2P6qdaJMRQ4TKiv7gp4r6zbbCiwQ4TG5XmQu7wseo4SoEH2q",mdrd: "LChLizFczfM.TkxqvVOZAvqGCXmM.WhqrKBkSaWaNaw-1739402356-1.2.1.1-IWcsbmSy1mfv3JQT6B6XTbaxoO1iSYGz8eKriFWijRubLdsAAz5oGWrKO6VFBO.OjbuKwQHZpggka4HxiZhtv8GdgwMLOpzhM5iyEvRLlxKxTmV_WaB0EWyJMcmxbLmGXkc2lAuIxJqlNNBU.pf2jfaJxw9mOcnpyQs7WLlRBS.NNhOd0KgifvnVa1Mww3ywJFCRbFZEnU8cdFre0h6YRo5RYUT4ijAX1KQXYkPZqsIFyM54nTDCevEqt3SphBw624nvR5xQSP6RZpiON_V3lfh1WWTX4Q1xepRE.Fk3XNzTsAUeXdWxXvGBEwE1VGbXD.0E4QUw_yq0DFOWnMUZQiL.5rRGGdERoZCJUO6SwEdRaVwI.beVMK4AvrzM3cO5BjhDbKg8A8SvFQMDn8mnzlJm9ePhNMcd41.CY06ELQYnXBW3R9L7U49wxraWU738vjyvD3Kn2igjW9bp.BYElll.XF.dRx2bsVn2fI78ssV5m9zHwE8tz8qMXOMEHivX.Gv9WiaXtHA0dJiU9sylZXMv62.yr2IibO_mau1e4vlRQcGUdG4lLWlcWInlW3JyYnJxBUym4P5SgVzUrywRa7Aw5HlFVyMpZ1R_VcVzJSEtj1KJwq1yVWnBYcDOWZ.lGwpMRC.yzrUoc2ECvLtrhzN0S7FfoOSH15WM5pBvIQNpqY2uK8uhRDCwGXzUTpao85n8E31VeEOfbd9VKBjknvleyS2.8ISmxKSzXOfLB4_yMaLxO_UN5eLF8B.iJOYAA_TmzC0x_xDn9vtPA69b7Hq4xVOfmqjrDe72h5YQdR5_Xt4OEqqhf6iVwjQnMZcQj6dcLSvtTFpkadybRF2QB14X1xtJMRkd4NSomzsYJ.yr6iib5wvPCwuNIByK7SHMgiO19oBtck04zA7gNV5maDdqvW0Npgo5VaIiqdivwsceUFQ8Nu4NwL.r.JSzWkubT9bZRa7PvDalFCC1uCKrLGPNdcsXluAvWja9Edh7X8WnteaXoqx3Wqinj_w0LVF8N2PsRCj9eXzURdG5zaBfj0lPaXqwiMR4IsGtZUxaWmCLP9m68vM71FRO3k24RkUdKBWrfYsiKoF94iL_4XzcgfUlNU6xgL7LAOSOeMxtRmauPJggnb6NblfzPnE_28nUTFNJLhYRjvrc9TZdVLKE0w1H9YWotkdcQfipkA.lYTrnIESzyZjs6rAElp9cC4i2ks5W3itZf_aabfOf5aaSzryGDvAbNMqdSTQAoHA4BPtT4vXEQ23rUEH5OdhTyZSesXWEDwd17MGfq7m3QEywkcCzdBj3xTSkQW4iqppnBlSUdVkb65W0LxlhePeYmJEx1S857DzZRjda0FXypBQad6OxOORw0wB4Hy58FZSE5P1xe0JQOMc5FEncs49wO9y99USt3vEvILINrJgvgOeY0u7NEbjMpQAwOS1Ea7EvyisFJGO9h1920g2dwh8Zn2ajgY73ZZxzy90ViuSuFDTAJ34R23TWRkFbb6.zkFrrVh637hVBaGmZtnLQ3rKuFMfvxGdPmhc_iH0QkQJDOh8phgsWmDKaC2k3cqisKPu8br0n4ofXL5ypsefTkpLfosRcTSZNgSV6EziQkg1zVPdKv.f8RmUYKxwv2lNcYFdClFPPjEptQZqSZ9I_CcXpHtqXxJUl166u_QwHsoMutkAj4tuh_IMF9dAnthPpGaA2wE5J2u3irTPuiFR6T3DBBUkXZJ0hZcOttfH.0.SLOgEgk8Ul0GOn0DISTZeNSEUwYkfCxRx985z2losLcaSbZQYDPjFhgLpmEwFRk.ecwAAiJfH077lgXxc8v2WfKydnW1A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91104d7a7c7ac942';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\/4068957231?__cf_chl_rt_tk=2teMLgEG7K_PxtLsEfIk_wtfVNv6gWc1NmvjehAHrVw-1739402356-1.0.1.1-Q3P9j_QwcFSj._gbWYXVqhl5Otjlbpzi6GYkl0Ysl1I" + 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