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-aff8rhl8s.mit-edu.top/post/3692047815

  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-aff8rhl8s.mit-edu.top",cType: 'managed',cRay: '90f81f10eca659ce',cH: 'GIFQnL9kk0i9Ae0QgyZzgmTNWWoKs0zDOgvSGKL0SME-1739148797-1.2.1.1-QGG1vSr9sc7yMEquHnuCelaKqssgKmvb7mMcR8FlyQq3iqLRGeo6EUGwcxhxVSns',cUPMDTk: "\/post\/3692047815?__cf_chl_tk=A8zQwLw3k_Vhs0piI3U3A__qWfX5ZxCHJGbKkr9tmUo-1739148797-1.0.1.1-z5P2T46nNa4inn.7d6vo_rzzPX6C48n_W7ndxPnY7_U",cFPWv: 'g',cITimeS: '1739148797',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3692047815?__cf_chl_f_tk=A8zQwLw3k_Vhs0piI3U3A__qWfX5ZxCHJGbKkr9tmUo-1739148797-1.0.1.1-z5P2T46nNa4inn.7d6vo_rzzPX6C48n_W7ndxPnY7_U",md: "Nu_5icUrd6wFygIiukPp2iCTMEtqeze2S49.iw5dtig-1739148797-1.2.1.1-TQxmgh22JR_O9BdoP3fXp8n9Pc4w6UTBLVzganJJtrP1XuxMgyLHobxNEhoLxUITkL4LqbeP.Tp4RCdYe5MFXQIuPyIXeGNp49FFARQjT15tRbcQL5H.c.TtfBIDuBhET.tTwKqvYeuL8Es1qNaoPsHLCmrlrqq._m06gcvkJYBxGymVJGvvOVh6IzWtXYQaEytwtJnBNMyPQQmFBGy0fGOO3qcCKLdwnz5Y_im7LIi9NRDq9u_eiL491AX.peuecgqcnZ7Gu2Fr0n1siYvxe0KvFqZbOjaWGBEDXCvgJ6829KdyIhuatjbq3IgdXUnIHOgIgSjkup22xLBKN9qrzGAnvGwDu92CcUGCftTd.oC6lXP6x8eZEJXTJqwTJVjjdiIH0FPyCKG.7vjFtJGPCG7_jgZLMg3gbus1jo2W3f6dmQ4msvkVUbIZaqO7X_tWYFJFrbp8AB.m1NgATro6j05vZYRPAysK0Pdk8uZCLfuTljEp6FksXnjnQkmPqn.MweUw.ZeV8hDc5X87wmY0zhpBqvhwJQAU6KzQG2lwZj.kJtVQUNAHYqw.6a0km55t5TtD3egfZq8V9QeecIpZ5nO5IaKE.W303T8CkiJ7yDAdRKZQhl3ubjYuWHHSJ04eocXitfcf240wrBmMfPeT0Bzqpx7DFUdz6ipRY6hVgvaMh6Jf1VLrWBMmeDJYAEEGRkHZ8_httXyqwZlc7MPj2qWJYzqFX7ooOBuwi8V4YowT4OjnDZhFUi.a_t_2j4BCrLI_z0vzf3xSEHe6HaLSzbl6Wc.rBXaYifCYeRWcRDoRrt2ro6pWGRjT7NXTmUmXjt2xIuq.3i8VuzZ.PImDjNAGDJOISzYUbah4AKwfo0nvSWD4pzNbqKuT09VOx8NIbC1G2Rm5xK63TI.14daDsBCeBZhzkQ5mByUcJWbORGXBfKymM827oso2514_qrRqeEmXpQ7Nqgh6B5l9xPh.A.JxuXB0V0hqmFXBjqHXdGJ1wL86_k8442oO_G7xhQxg3HKCj2WBSspYamA6xIyIPNid3Jbma6vjgPkXhwgdhgS11PDHr8WDw.qeXA18VxGqk.A1HvdxoiP2ZWwSsgPGVX19GWJ0QtRs7I4fUxFR.iuUCuhJJYHU3hTORohYEy2aL5wWatp1ChgCg.4DTvC3opEAyG3JYUKR4ki9CuUIQbeAxrTXZ9ulaQVhGI0zDlHthJRg8nfb9YizI1k3wiTg0BaSq9nibnNkFtDfqtLayirrh.vHJ7WO9CG8K6pOOR13Vtly._WghbhFd5eKRIrd7sCOlmL5WkyzRQEXuumng9sdBcB6SJIm9AWNGOlsQ5vIbYhFIdMG2MdashdFEWTloMS5Z5pCf4vdeZ4QNXiBnJVOlrdTiaKMmVFn1vbB4M8PkfSSqFqPgRGQNOpeAHnXzSJDx.UsrBz.op7cE6DAZPHuWE.2_oJHQfrHgwRZClQgQoduDqvimy6fWDEUHgNsOBskNm7yRlQNoPnCSSBOw_x2Ytf.LF640XTTVTVeq6MYkE9tFeeM4r_5nW7FXOKiVppUNXCXpq6hPt79UOSFV.zaI5plAGhdDf_MNkxcFuOuI.oOY_DTLQzLlfhbtkIyHfV5zjJ6KRfi4orlT1k_DOIgQovr_Rp4ffbzbFen0MnWqNwavZG.cTIeP.7mw33Wbo_iEanvun2JNlphktn0SNK1lA.p_D28zAAUWrBuTHlW2Jen4I95oqc7SkExgT0PC4TP2w00tAGZ2dqICMX3OQ3kbGW3l4ttMwywOk3KaJqok26M5vzBIDx0Q9MCEak6zy7emeqbYvAClNeIf33nLavZD4Hto9iVmXl0UGU8ZpkxtHTBEhsUVfgm3uM3D2TlPTp.k9ByJ71fHiNU7IU_USHlRAlJp1B7JwjvoOE0MBAO2rDw2YQUr.3Mod_POJer0pMBJNouSYnhUvaGw1V0hrMBiHd_OHaKTRlWPnPfMCRhmH.1doLdZp5ydOK3mctKrimUFeXia4S6CgH4rK2foWJn7cFO6I5lCt18QWqUAVIytWFMFgOap7R4D1.jhMy01U0uaSVGFMHQZoBJ0s9lj6xhMlU5fcJX.h1EiQNFbFJ_Y8_e6xE9drbAf0TqBBrNBEoJpqTK2rFEFEQvvY9VEimOCCP_7ifK0sDaGtdGytNczUFjOuccHa1Zy3lWMWQf_Wc0xfEVn1lD_uiyOmGLTkL9yaqEoYQm9VKDrr86rVUy",mdrd: "qQvPIiToJQZO3sSHI3z0Wk9QGEp.qh9uIIFa6IZ.bL4-1739148797-1.2.1.1-rMhXXDUROT03jSBCgqh4p29TqnsmFdQ1br4QaGr8s7DnM796Zd01hHZNEHkEaSdygnmnCvVjf70RW5W1t39SJoLgPHUpBQg1PDyXGvHC.afoEU1GswH9l1pS3KQL5bd.VLaLiJ8kdAeKHDpcmmSecEnP2648DEskGiw19PIxGe01vZw5Gla7kymCOmaq74T5OzTxKsKOnpxr4MuOWH8yBtiiQvEZyCL5JrS7pRzuuYJc77Pn7OQbb90LVdKzF8AegzjKBbu3h3Qvmewx40obo_n5eaRDdHNJ0jNmxalCytQaGGW7B3kFxfaCXEcifzMbwkKQuXsQQVlfytfkMTrvSKoGvwpwrqeuNjAywgH0k9ehC4dop0rU_VzQEYtx2KmxHl8dp8HBYXX4pU7ZZV.k3q6cQI2XPt2XYu7IQyYgCsmM2Oq461bslr0fewS3xiTxiBBeTjH1fNU7mO25lXQJR1Aecm.j30VsSUnCE8TyiqujD7LGDzKjrHSVM8dpe5xLjN0bSkv7CDZ6Vof5j6WdKiTIeafhoJFPsUmW0xvSy1CPVJwYE2cVVQWwkfMwtajRk8.G3XeP3yzdjhJg2zOwyrplMN03ZUo3Arlxm6hz.NSglPITBgALZpYHrC4nOhDwDewfCftXCIRJ3V7Lei8cGXgd.EM4FGNuSuZIhVtrnPD9Qjr.tbOgxZHdOECS7DnTBC.dEcHC.UK3p23mQ_4XEJTY3xvxfNV5p.0Yp9LwMgNLdW9RCcFl7MLvA3yGPmD6sBtRsMbkRzsE.65ALMezkZ60fTl7fqKOn3qD66rgagz5PlavKkFTcKp_qVqDY5W1iDDq_4qoWIXTg3i_d5mBQkqS.R6cKJJ4QCCahOikwFd2lx26cVheOTp0CXB7DyM._g98Vze.kEVapZZYrZDHhId0bbD69I_320BHZrqTGiqTmzoNxgsIUvke.O7IGJLeqJw9ACbEEbDWafCRrXnbaYwmvExDQ1N6r4SArP47HiztEctRV2SoH4zGnF.eMw8SQUCpby0JsdvVyR6uL0tmFfzrpiXRqyrHahH0oZhVONI8ch9s3kad7fNYcY15KgCOien3fkhap2Vx0ktPoYvSIMV6LZoq3vlGcgraQ0t0N7ssNhp4sDn0EhvhiRnZ_j068ex6BFF6JAMu3yZmpGnQUnmMDBxf48uyHPVWRpukYMOKNJvFrq8p5maiUf8GK19KFiiPu85PnG1xunGoCqVKpYk4cPUExTfLCLiqoqZSKJV8JsXNlcwlQxkkKpWxL6MXJYbu2O3PY9sB4d2yj.9yg0Gi1riwwgzHkshJFmKVPGfwphVBA8NDxrgUf4xGfchaNBSbIf43d1I73.zFY8Y5F70qYzE4l9WEFgu93ap_pY7RVz0zL.dJZQGgKia.HwGTRimnqDjWXLDvBJ.zVPanO37g8lOKfPaZktbtB2WgEiuL6uJ0ZRZScK2_Kygn5JSamhmXUwr7vlDpdLCKpWDFaHv6wnr1aiKtFrUeZ..VAzJzcLjvPqTxVj0VDg8irG9_X1daX4_hAmzGVfPVtJ_AxhKOce4aoJTbSG9e2v7yttYnmX6lwc_QiyiEiLzmfTbl9pXswRNrLZfMaXjpt1PVapGDFHbgI3jl0EczMsLsuOlU3tlVsI1Fv9MzVe1IHulimT67Djae2F_emO7VPQ5nKt93kF6qwUUYuZttcM_7ca9jv.ZcAdQLAETI_IY5k4rm1hLPNl2trX2b6hS8R.mgNGEnhY0LP1IoQ92xtIwd.knFCc.dNqeWRF2sGXbG2ocnMiMCp.t81r4mwR6QEs2ZmeuF7V37rFlo8LTxHUEKzXmjvmb0dxvdyHHizGy8aoN_"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f81f10eca659ce';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\/3692047815?__cf_chl_rt_tk=A8zQwLw3k_Vhs0piI3U3A__qWfX5ZxCHJGbKkr9tmUo-1739148797-1.0.1.1-z5P2T46nNa4inn.7d6vo_rzzPX6C48n_W7ndxPnY7_U" + 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