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-aff51h9a2.mit-edu.top/post/4928016573

  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-aff51h9a2.mit-edu.top",cType: 'managed',cRay: '90f3b3900d35c994',cH: 't6IwTys81GX7XbYjdRDO7_2ytOgj_9ZwDOhC0JEUBdw-1739102451-1.2.1.1-Z8v1ranNsM5Vs2Mrd1T9tlNqAfyJTFBcsL4CHghJE50t72oddA_yOwkyLqYlVhFS',cUPMDTk: "\/post\/4928016573?__cf_chl_tk=wEZA2eb5qNVtilLw5lib_9b0EHGbeMY8vxi63yO7anM-1739102451-1.0.1.1-7jsx1sohg6IPrz9yco0N4r93c9Wt0EgJBn6KGGxhBXs",cFPWv: 'g',cITimeS: '1739102451',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4928016573?__cf_chl_f_tk=wEZA2eb5qNVtilLw5lib_9b0EHGbeMY8vxi63yO7anM-1739102451-1.0.1.1-7jsx1sohg6IPrz9yco0N4r93c9Wt0EgJBn6KGGxhBXs",md: "t6Hl05tthEM9Qlv6zhdYkMYCia8WM7WVPaHqoQihkws-1739102451-1.2.1.1-CiTlM6nk3Ygs6W8w6gLOdyIyK2WzewZH9f.kTjIEoofgX5c72SmvA5Y5vFIqfeUQvll4R9i6y5zmslV1clSyV4d7EF9yQ7UYNv4j3GGsoBIQNutcOtYW3GmPmqWKzbKEPttL7B2nxdBYYZXDZNpTa1UBWtJQOY9v58H7guXpRHIHjeiWJQZ2ng_59G2BJYV0KEtDokgLDHgnR3YaDTMpekm5u32wtRFmP7yKHchLoFsYP89ixFrmWrQUo01WF7lrEuzvaieV704Y76lzFpktxb.MbivE4JJsO5GdoNdj3EEyVs9VqWl.qoOb4oqansKNV6wpktA3SE3v37k5OMlVk5DG8C7txSKigs4dWy5proqEMDfYYqWrMN3Q.w1Y6zhmquKtBuqXCTqpyxtVQL6Gilv34O27oh2MWHsFjhufPKiFxKq0K6TTDR_mTSp47KA61jgordGVP2dX_6GnGKRYaHoEWL9qJtkoxefx3.7H36_lxOoMTIpspa9eI8NYNlarpHtmE5GC5cHro8vURTrX0LZJIFltnfrjuTZD1cXQ28.o7Najbma46oXc_Rq0tzOQDha4bcxM2u9lloAY5gMMkv3xp2LhQKZi_c4Mav41fBliFmfG5auYpoS5DafJ4syLGLYjzSuf7anYPglxEXV_GUeU5YuCsBEy2up28l8CCfyWN2QyIAoonzbMU34.2tMVd4NmPvDz.EuupZ_v92HjB3RF9mcQAqTWG3nRUaJtHPNXLMeigkoMrds8yioy_h.taIX1bInURL0RxSlp9kYEbJfRzHgK0vLgXwTCbA_n0dOMNzwHhJyIziOrW1cZolk2RU3nN8ti7yY5UY21_jqlCTR3yvCuYMiMB6mx4Y3yiixh03BE7WCaHCno0ajM7hKb6vCFvtff8n4d38vFMZj2hGJwecSH8yF8iLOn5p2y2Is_RrLP4NoyY.7IJhrPq9O1VURbc8W0lHBAM_1eKV0Uci5lE2jLB.PTAaTPox5c5K7hgsJOnoWKep6mMTESoOiCCicGglwF8fkrX9zEiB5yHYA8QHVGiUvyGgDKyRQ_FVRUIUpcVckSJanBaNFET8WtMVzL0T1JuYxbFdECpuxTWdqwiFEaIjPs_Utlo6EheAuLZGkDOa53n6U9HNlGP9n8T1JlKsdIBPg7BE0uvTW7DUYJSUvBdDPWXTMVUOOwhxcmX2_hopD62WCyOi0aigq3WfGzOouhxDZkAcSXJ0c8raCxID3hyDukvPMTHJ.R2BXYKlB_K_XZMrjXU9Bdxm7eF6pC6OxtTG._snnqDCS1OzupufQTtsfVS3tCu0umHQrGrTOD8MkF4J7mmR8mGFkNusB2d5TY3F2ewORn70y3WRtIU3iaeTcFgJ9o.K0omG0r7Fy15UGD1b_VYzmlD6Oiv8NpUzVaqbeoNoltOWYf2MD.MjCSYdX5gl5XMJSRqJMIot8nyuy50UzFmOezBl.z02SZAt0LyA.umPHjkihrQWvD_vJjc9DAq.NS3uKpgEQZR.yLV_aIE3SAvyM1z_gao4BStGZpSw8TtPIC924X6fekKVGN3NsJtdBDyc3GLiWiKj7zdfmMOWZcGTmpTWfXhAPNSRI8GR04QbpyyTWMhvlu5leEH9FoXo8151D4BXr3iRcaTgR28_wv6g4ASM9IjpcGC9WUg.ZZ3UZtYqdGpWfqqaQYYHSWW8HPrnAUmb.pxAZaitF7zjtXjQeayPWZs7D21xJv1isCfqcqp6cp_AWqt53383cT3Sj7Uf3Xa8zMMp3NB26pp8qBLyZBlgj5dG7KINhOUE534vaCWgZI77X4u9KyOVIT3VtAWCJLtAgAA4jd3Splag.3S0ZLbdCwBLA03c0gS9k2mk7wqibfnTY09GMz6mxuv4WobXRFtWJQ8p7baBntak8RpU3Ak_UAsMnZm6KZHtEJ6hYMAAWz_BScvbVbHXHtIrz8IsW5ksWJS1ZHOeRZ6SYwOqmmy4KQhFvIvVvFnNqAescA1XGGBlYR5idUN7RTNpGp36I8IuHSIrO4u1hTCjT5Gp9.w0EyyFfsaJzYW.jVznz3UrOwDNQzecPJ5wLgCVE_8v0VgMabZokrt4goXx_HI1l36Pgcj6eptoWeVUiRYMwzwpcdXgUzYaw1ji4O9skZuyLKK_ObM_n05uzTd.siDqk9iCQX_mfcu8PUcpSbJJuQnSUY1qoRWs9IAK.s_Vdqg2XYiQbj2LdHGXB_BgMj6.BcgrOL",mdrd: "z_tcNXN9O2xe2PMI77uHE7a3bV34WsijtOSK5Xk8rOs-1739102451-1.2.1.1-Bv6OoUP.2WzCemp48MqVMOZ.VioLXbqRiuYXZsX81tL.LrQ3E7i66HMGyLT9F3_J6abnEtD1yqahWOvwXHYqSgE33x.OrjJjiGf7avQsjEPhmMNkXKVL5Xd9Fo4ex6EU5jCEPS7UiZO4MoIoT6B8Nob21JcZpgSWHTycSh4QFBI_U4tFoXTLLKEKOA6Em6DcktCEB7e.HhDpwJU.H6toxr22adMyzjTLAu5rp66dMRlyy0uxLhf_DGsznAY24GHMXu.jHWQYxkb7udaVnqGVPZlAsCIoWpIKJkQNnbY2VnsVxb8Oe09gUwtuCGKxdSGWPDTUjPVccO1982mI0gh_4uljll5yPRujPAZTgy1W3mCQRwJI0OTOmQ.ZUsZtLkkQKzLvceJqHncuUvK00eMocifjbwSm0sYA8m7AjwiOXFl.xWLyR4YwbVXnjFsuo_euC99dhubzZQzH_qJQzdhxOw13HpRMzZc.zq9z8ZadoCwAIC4McjzJzuE7rH0zBZx12p8b6akf7yGzunfMBKg8i.CKdyucJNOCVk3xqDNJQ2c3hV0V27le7_xAadfHVRbowrsbT2Roh2025Ndcgy2WS7mr3UIrz.jrbR4nRaf8D8uv9u7u8sWr4nZTwx4RXwmHtWVlOJV2VPLh0DUg1xVyP_IJqmXwDg.f4sevMinsqdKmNaCwFb.ivLSJ5KYaZcdgGz5chqvitnHwIC4F8lc7PPCtByrJEIBnD0BX7hpXORBKv2Ra_wyrvg2ogEVMA5MgnWqg5FgMLXWwMbzKcclxI_Yz6oMfaaJiJfg8O3MqS9UKQDpgeEWmXRofPn.KExreHTcCnHH2RNSjZjhi4k5l0Fz0xEsNNW6C3OryHW10B6JOIVmqOMDjaT6o1lrPedVt6xDEJx5SoukDwsBLN6TlSiYnl50b1irzxDwQlNfeeFWBQqu8Jq3Qu9k1cJ3jnDJCt_itWwgaClFUCl4awycVkGfpUDZbV68VexsWojKrl9EVo3I1aMyEGk_AoIr15JghMFDKKXsghIrTONvpvbnCC63_MIbg9HtKpTQRpAKwDyaCLCOGBHQwWSZ7raDlektHOg1jFGU4jcMO_jqkd2TsvsK9z9XzUPMNA2fqXDhTxCpOkB3WE7gKKhbo2Q6wEtaUlcgZbdWRKGmBroav3cqT6fbfziAp6YLjwAqaGZ5e.CJbg0rIBCpWiITCqXl_tfNV31Ue9MjFr2Aboml7jL2n56NnX09UAAkSGTXl1WZUsVzcf4LTJWY.qSEHg5TLqXlaA8RSR8g5o5AbGT1uGljfOsjwccexBFLXxXWc1oOIs52dEITWntUPLOY5apmLta6SLaAGkb8h.lLUlPl9LGv7vq0w92azMCRxX84aASYeVPdghaxByj2_YWOscOBOU.SezDfJ0A6GyWcLyhw_OUGZbfwbkf5B3EAnvuiN2wfR7KSUShUAOY2_OpXmPxSB6Q.rxeMyPme_6aeCAQOhTw_BkCWnXJJRE2SzRzOnJCtgLeqwQ9qLjdEsmH6WlQbS.KYCIPR0esr2zTcvQLqZLVQVGggRBTdlKNkzfeaKtZBI7zEBeB8213yMI.AWHJHQrWdJ50mTNLfrlOCs6N0LsQFhzNPKOj5rbwJe0d5wigI3yXKT18KFeN3prt2o0v4kKbsZ.203W3wYiesBxxbufKPGzILINr9yQ4oj.GHvKjfEkQA6vGfKshsKrumLjs3j9Br6B1rRE_n18tlBh65AxaIT8BRfJvVdN8KXIZEDsp5E.SNuTwocryNrdDuqMs8fiQhSQU0zOueBX7jZMmOtTATjtA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3b3900d35c994';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\/4928016573?__cf_chl_rt_tk=wEZA2eb5qNVtilLw5lib_9b0EHGbeMY8vxi63yO7anM-1739102451-1.0.1.1-7jsx1sohg6IPrz9yco0N4r93c9Wt0EgJBn6KGGxhBXs" + 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