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-affe611de.mit-edu.top/post/0731259486

  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-affe611de.mit-edu.top",cType: 'managed',cRay: '90f8115dccf7d6c0',cH: 'ThDj1paTstp14bgF..D9fYucbz70r2TcXgHNFVuh4E4-1739148236-1.2.1.1-58PdoqJLqZ2qHgZPQJF0p6Ia9wUNL7q.FJSO8IdTmTfzZqMhOsyB_dA8HlVjuVVP',cUPMDTk: "\/post\/0731259486?__cf_chl_tk=YHzqK4CzB5r2.A0dhJNRQcF5JS4i3aVh5DbljT1QjGk-1739148236-1.0.1.1-tTvUbqIsKBUe8CoFbckq4fw7nYfz5gzI26dYMtYgD.A",cFPWv: 'g',cITimeS: '1739148236',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0731259486?__cf_chl_f_tk=YHzqK4CzB5r2.A0dhJNRQcF5JS4i3aVh5DbljT1QjGk-1739148236-1.0.1.1-tTvUbqIsKBUe8CoFbckq4fw7nYfz5gzI26dYMtYgD.A",md: "sX3Bzpa5y81QctarzvoLlVCPf7vQj9XO7s7w6Yar_Vs-1739148236-1.2.1.1-_.ka9h.SWh7X775K0S0F438jvtneADhXm9VNafer3PjFn.xcRddHI7sPqZ7VaZ7ScVNxrHCW36pWttwgMKHDKtKvIde7NY1NdyJS4TK8l9dql28mHPkx2OiCK0XKgkGCvDoOnWzwT5yJaHnhpv46pQ4n3aO2ml..AQb1T_tgPjC63oFkX52BkjATGRKwdjnS8dgRVOjfHXfMG4DH._sjC7zEHxpcfeakPJ1QjuUao_TurQZGkttDNAcB7NgMLYqDfIcBkSLKuHg5xoeE93crEnicFOhpqp8dlUqEoW9MqphrnvnvnqHpCu5HJX8XuVqmzNRTMG6M4.ePkH.Z6Pn4zfpjbz0xrlNhiwmL6DUFc3gLiFZULw.PpMb1kdu2D7D5fi0X3rjGq_8yFNrxCFBxxdNvjuyDG.p_vGr7HVw4Kb.ZCpw3IEbd.T2XpCj619ypMCM.VJAfMrePCOh1uh96grArDzPTfSBmv_R6d2GHBOZR2wRH1o7w2a1RmLemqhH_cSEXKxsR_DETi.Wmf5pHbd6yYrnL4A3pza88BBuVrIfH1_80_NZbfc5hM1Y4uB1CkT9XciLlSd9huTNr0jIlinUkTDxFqnLGpP0NQ7bU88EIFUMlSt8IO_JQI3Kornmyw3RhWMknjWxHFQLs4PC8Ng.a5.CNlAjnxBErXry.lPJapDTquhAx0mwD.DB2c4uZxo5I_r6kKPULd2QqZJSyLcbF0qbCDC3ESmzaYSYNoW1DeETjFZlXjWaD5AEBnAVhnXol4xaO_mbthraaCU1sKP5tcEVhERRbECbKuu6m0t8W_1io_yfBHoppFnaxN0JUTLuCwA6r8WjoD8TJ_OASAElT.k6fLd17E0zZIY7dTQyR9ByXiY7WSNp1cks8p10NQEjvpwBaBXUvZIoLBGYVECIe7W_Zp3B9AuMN4KtGbX5L0msxAsdtcxpt2enoJ7mzDnTZiV9TAAPAJgc6LaxfEEsSy4gxVSOt9MKnemjA_VxFosJLAOv3ZmuQMcG6L1.lVd6ELoY4uC_J6nXqox2vsQ2o.XjFWPJ3fhR.F9z_PDqvfhdarGRF8Cnz37Gut7RuIf24OP7zQwjfamDrAUCm_J53xkyc_hNJrfYQTKLAJ2626siUCTY4vOkxae8bQzw0dfsX8xhYVWvAFKU0qKZIsTjXYR.MEhqju3ZdsNlyCOGviweYsJ10m00_T7eHRUAlEj8iJ.Pnea52Me24YpJzLWdzbYIGCZTJkSWIjfE4drOg3WyCGNUVRZ5gt3xZWbuXz7xdbzq7eFjCqKLsxIiIe.jKz7tP3J9BBcUYYZ132ZtbYqadjgx51tutO8emAGEzMIxIkGcPnd0oYIjwRcb0gyB1yroSOv9Zw.fS45JGg3hXR0PJrZjuZUnySNGAELA17BKLumVmC3vdOPVhSfFf_l369YMDoi3f1W0qMpjilNWJbTwxYWntm7W.2f.zYDb4Cz1dzTXmHiTELGOEv6jbDkeIWpOTVlxVt752k8UExBf4borcSMjQ5JE1e.2olziXSRohndI9rhj3_ZGelwKOeTb0e4heR8ehrbt9wUIUE6XGW94yajaa_A5eUMrkb8EyER8wEx.LMPXNijtmvB9.FY76zO6IoO7e7NY6TDaSwUDn16Q4r0CMeELsC3hwJwkXn_oqFqSTBCBW8cjcJbIDKhZ3jkuqTe8rQMDD0hwH452t2nmmAbPFjO3WJ3TAHRJuXE5BHZlwQ1AqfJ0N44y7oUSRcN8MMckuRGQuJvt35157l5_GRhQCLA7ZUQEgCjvKSvtHoyCsCXGX5bgn2wsSqsxw5J_LX3j2Oat9R2b279qNbMPECE_gJ8_1PWmSb3OHSbQihUKCGkbI3XzohTgaIGDyAJf0uWpjqVJI7sNP5L6u3o9Hd.A_Mc18AUqRCLN66z3Ci_X2KHncNmj2bTsnQMeD7CEgSeHkiJU6c5.i3D7N.K25p1e56FYWm6NKKJcMFmySOOuRWTgRnQy08vTwAC8VjcWwKeYun1BHPgtOmYE.VfW2VGoXpqrrtJEMCdaGgVl0KTQNWNUwQhfk0d85hYpJG2qHtRZikkoJRq7LZlgDkTJpJgaKr6fmLHOF5mKdUU_w34wlrxMl.NPv6HCYIqaBsEIPBrGcdC6BC9WFIyaUxy4SSYAXOl1NBZkv1lRCQGdRmMR6BHcv6C4PyRPVYdNyxcVgEb5LSvA0NvC6Sb6Se2a9bk9pO96mwsFqhlVo",mdrd: "7LEtBuet_el0ItiWK02vL5j4OYFQZI0b8K5knCqiKjc-1739148236-1.2.1.1-aHNjgCd34uRp5B5hUJE7gs9v7rjUkeKQZtpRwPm_K6SA9TLwaK6CSpHm3f7PYnFvEfkC90BHEbt1g_YYIBDQpRSyBD40hspVkRKkHjjPIfmhn4RVUW.eQbf.GroIt7aH9R1CI9vPCsPGjwyunj5tFdfTIUGs_P5Kbr42pc4wbFSz3i2V0onT6ROq_9zzWf63gtZyPU1i0n1MJaeCLiLAd6xWxPDVHgeN2Z65bimnH6JWjdixkfrLhA7e2mQO4p.SRozXHUR5Mcv59HEQhN4s67LC0BkZeDunRjK1teY_8SV3aczshS_oCwrlksvnED7GHhFBKUOSEXJsKKf3WOTcWSC5HIOnEoMuh7ltCJ9bJHDETzZKe0KL2.MtpFltVEun0ioczjB32ZMMEQu_BNdtPc6i3MybC4_ckTDk1lKONoFG3UbrA3LIJc0Rb85YMEHXqjBXyxZx7AlqRvsNnCRSvZqgDzfcy_Wkd.pOoI5lcDJwYgoUjYXO1i7VgLWYINLFC1ODEJs89teoQBgzURCmtMa.r1zV45rnqRwZmSY6IWdpav05JSafx_.1g12nE3wNNT98PV8NYMTY7UiRCRV5ffTTeQdoU_ydeYokfH5RcaPI2M27cjGTrA424THYg6c8bb9pmWlhZeNgkHWl5CXcP9AnL9y06Tb9afZWJChpOmMhcLGOidoQRVJBhyK8bYCto72BH6w0I86Hl_m_RTe3.D4_YbKoaQxXJDTUujnGvndDTAN48K3WQBAGaHiOnLBO_4x3weonpJvsDFbJ7elgLUKZrXZOyiviJRJE.kBPlsUxgafcebr6ho.bFTvHk_FGaIjygSK9cumfZcgPa0AYJ_RLJjT_qqIlWy7eLtnAEI6RF.GkGrw1tqwUHHQ32mh22DUG.2ZfZAvqtuqStPDsF5JSitDhfCkBg_tZOT7CFVp.b3gRDoLVqESiivgLzG34NDe7eLhLGeb9K_A5zTrtk9KON5Bu4UJdZgSKCz3vO0eoJAVDWhCmcAIjyTYCMn89UpmIgiDWD36z3dXZINPzFE32WYIs8ItVQtMODvlV5L34Nq2puQDjBkOkWjCyA4NTHZN0ZiKFQhxj62bLbad74Fab_HjBH3vD7YqnD5gZD3rXpNghSc3GNHI_IQj0yW_mlWgburmgVbyvgQrM4NJqAkUjlKGflnNpi0KaHGM.8StTSK1WKKyD7skFFrNM48aGdQLslgjPSADIVkENwjMqMEMaAK2AN2HH3uhlf95Iz2wlgwpOd3C9YKMTMP9lqk8jRXFHPbDPJ4r_Wqr_slfKXhSqlrTEJd09dLyQeKFHHTZ7BnV_O9XS5rHE5stkLHyq.4F0GILC1v2ukXnDNsKNB8zy5VhfRTHQkTGXAj4jZhRMhlBKJPwtkytrvOcjUGjSVMYyF7tdR4e3E740nAbs2aLqCCjnlL8b1uysMXDBBn4Z7z86P58k2z0qHzo9ClV2Awe6ois8apIPTuHPezIbpN6c2HcCMzWs5YyU0yZYCyEm1kpyddFyxM41ClLjQWh1cXaKiXlY0KildEvfmLvwFNcdkP1ddkv2fNeelaWSPIoZBwzb2gFbjaT3QQWvtXPWAO9E_JdmmPdruaK46UFHKMU_rMe01oMIYFlA9ni5ZZwaaE3oCEq0xjTBDhzZ_aroIiJX518BGl12F4Fj_6nAj7.aTu9ClV2_DalkKodAPRYIsjUowyjBUEJuOPbft5HkKcdRDAj4LCre8acPxZ8UrThcMQus_ez9_Odg.ylFI9dfMzZyce6B5lW0tAivW9wma0cDnQ11mcAFSRbloCe1MIoesSeDQRGIVPfgnEcFH80"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f8115dccf7d6c0';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\/0731259486?__cf_chl_rt_tk=YHzqK4CzB5r2.A0dhJNRQcF5JS4i3aVh5DbljT1QjGk-1739148236-1.0.1.1-tTvUbqIsKBUe8CoFbckq4fw7nYfz5gzI26dYMtYgD.A" + 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