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-aff9qxto3.mit-edu.top/post/3247108956

  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-aff9qxto3.mit-edu.top",cType: 'managed',cRay: '9109d4c4aa107fbb',cH: 'I9Ga9_q3EpkbtL_1uO0R_A6aWjFkdBtlzWXD3O9HfKk-1739334498-1.2.1.1-aE2YlOgLsGTAZUW82pRnPlLyC_P4ZR4lgiDHvuUkgT7us_hjsZDwZ1XqV51_Ly1o',cUPMDTk: "\/post\/3247108956?__cf_chl_tk=b.Pvom23fgt_CYilwOkeNa0X6mzW5hCL1guP_DGbA64-1739334498-1.0.1.1-p4hqadvnXbDJzQzGN65HQyGQxuyfaIAehRlHMz1yrWA",cFPWv: 'g',cITimeS: '1739334498',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3247108956?__cf_chl_f_tk=b.Pvom23fgt_CYilwOkeNa0X6mzW5hCL1guP_DGbA64-1739334498-1.0.1.1-p4hqadvnXbDJzQzGN65HQyGQxuyfaIAehRlHMz1yrWA",md: "eHvQgiTFK_24OuQC8INUhvFudJiMnfCvq682Jj_RF3w-1739334498-1.2.1.1-fuUnxnt1U2UJUJKgdp4eIsGpXlLDTUvDz1pcu8CzP_yFLQ38IHzIYIeuAsbTiVRZfqnMz3znC0dgayi5peuHk6P8vRpakE5nlgi8mdN5nxWlURVeZvBywJyU63OvF5DGF2unM7ItuvSodlsseBIeCHlA_rcWD57BFcIiPFFpbsXpc_DsNjgaUiq3h7wNbYckTmK9ruH4JsDEYH4DCmAGcUlx3LFJb3oep_PjClaaF6QrnhSk2XQuijWnEVGxDVedazP91WthnfzJSHo.hLyipsu7LqzGTSqbx1Hyq560.xkNT6MiD.G8XeK1DkUgEbkZbFEc7lKXsaWmNwNgJmxQ.8nVYM3SKpmkEeG3Lozgt0.ZArHxFwrZs9l6KO2YVk_bXNlvf80UCaMt4Q3YSDB0EYK0wJxh04P89TMvK2nR5Ix1XLiofBUWjRhR6E1.HV3yTWEnmbFzJn5Abaodc1jqf.52BnZO2uefiHj0hDSDgPOKIjBftYE4PlwtLm.QG3NHq3snFnlP0A7kvoyzgsehB.xoedpZqNb0DzOqj6kaaUCCTa6vHC_lv6NL0M.9E3eB_dxRP4aOrgXt8Y3wYQj81NyKtFYLVHZHiKpxPhNE.lL1x0KBgl.hM8NzhVpRHKXGjYF4wpgYqf6eS62vcjjcPOrqSpfnGSm.gjaaMqApcBTEFxbmiM12XnPYIcRXicVuEX_rJNL6uEGj4tXgmsGemlppmU4g8JtqLSJvQphd4yDL_.dKdxZVXpwPBeMVLuS8cNH6uTAmOxrK3Lyic5ByuMrr.rUZz6jb1aW1Eet84xd6HN9ATEc_qvD4iYpOWxFggbslM8sPs9PWv2oQ9oyHsMBA4V7YiriUDuBhlWssRCZHioCK7afq6hiQixHivl1BbmIouCjMAim8HdMsrJ4mxhipi1OcnhsIvb2Dm01bpMf27D36d3c4Fa6rabDv2_T2kzVtLk8OhzTx4JCHy02aEFg6pGiebXYqxzfN_aHQT7QY_MqHDukgAy7fNoJ52Rg3OlLLPxf_MrrConogCzQQF_yUwIRmPR7AZc2UWG5IB57dK6Pw3s2IhSO9vMlpuvTEZIWjWR6A6Cm4QkekZqE9xCe1kSXkML_.FgUD2lNPVEL1NQhe5wGJYWjNtgYmRF6VrOGFHgEcYsRH3MMvFQADIB63DXREhUdf7jsFbE6z.GTbU7umJ9XQ2JgN8IjH7bgtnTVh275olzbMEGbivbiTLmEXmYtKX5R.0FGJEnJdySoJvLT7Bpqsu5xzcB69Z2ga6sQmKCWGTyRsDAjSqLrVUlCF3EdQtXfS452ed3QoQcoOP.UNu4d61U4RyQYdCav03MD6Do07HBJCojHTHEENkgYw9Vx9JzgYBq3cEuUbOcCJ013lRQz17Oo6S14RcZmnD7oaSYnkRTuWafi2kgjJsnT7n5Ez43OYCE7mmtwBk8rC0n.rBgRZnZA8vLPyVPs7HM68qd_Loc7QXHTH4.6ym8p1hsLWtOepwzKkvhei28P.mHoISM8g8xg.APM4GQnkDgX.aLIkPZwCit5drU8UFqSGg2Y53Lo9Dqg.WS5Y.42GTeXmU1U6IZKg4QR1Kcq.9LCxIfzczn.auBJrIMqXtChaJ1j_FG5KSR1A.BgjoybkItTc0AT0DPZumv2rviNt.6kt7VI73Kja_0.BMHi0sfcjxSGN56GnIxftJDwP3hQJKdcVhde2sDPSnrJyZ61kTpdcT3OysyrL9CBCLL6.BwPusdvwwlnsJe7bFr.jaJqc_NmbxS_ukUS2D0nYt3Ka4EQSMkyHA8NB34Y40sNpQ15lR2rtSkFMTIWtO_QvOdshasU_nujCdzIRpPdMCW1ht.6MsGuXiYEYe95tu5zCUFpMKXBOOvUzlBGnUaPfSQlq8ARXP.rLbMrx6ZbCNDLXMIHyekvKWqtb134KEq12WShZOfALL8zmjgR2CGfOXLSNVg510l.ABVcTBKUvJPMOARvxGYr9exBlAbbcLAbUkYn8mmgZLzRh0iTr5IKqX7_H5PhBjDcv3Onw.cCacimuvwHKlmOwdKiziBAT3mUtS0.w1OitnrjcUjKtPPztqNGFDT98Kx7FDG2AZDpzxzvhXZRQkzbCk4xRWEFIIspn3hrYKIxjTH80Nm.CtfyECFt0g4E3Yn9lY1j7BaqJ7tBYa142OFe8ldBHGn6yxHkmIcXBuxi.8HTAkOGr2D_USgpyxFPSt51PJYgtW0SKZ1UC",mdrd: "OTezbFU5K1bui4jLCXz3ARg8rne65NRizFEGDjOIzjI-1739334498-1.2.1.1-FtIN6oqCi2T3SL1kg.aYrP0KN09M5ggpkasnkm2w0.jrad8MwalJ.Hv1yeRvQe6KuccAim9VWauFsqDbcpGuvoqJTmCDz9dEaI8xaisN.xhSSUQi3JyL3Oy6m.0Smj1xDv479a.FOW6Md7ALPdJIFntd66xH3xedzQQnX9m017Rke.5uyQ9YglX1SJGbh94SQo9VcfpfuyvMVpRHc6.S7Y1Fhd4qxU7o0mUOJhmDIIAUQ2BLXyzVs9duy5jSOYUNPIQ2ADKtqMfGccMV8D488d0phxMC0v.UJEJlSxBn9rHnH3fr1xCRWHV5bz8Lta6yFDz56P3tu8n7lgpBdmuLZQWxMYQNPQkhSYhwXjfGScMbqkB5rOMehmaxXr_9afUWbl0vo2wiJ7phcIQmrEukEQ4zsqycg1k0Uxgej0XztedJDuL1StzuNxEZ3jB0Fgd9QevMvg5y0v3pDFeRsDZs6LMnmyBUsz9w9lwff8_35MvIZpazmdUSctMk97lHrkRk1exUEZDEj1PN6KflpyQdoD_brdQhoTfiH1hr9r9nCljvb8yhY6m2G75U3Rx8blAwTDdh8WEhAhouD8k4qusUf7i7.YaTTOdCEZ6D3RVKfIFiX7RHjG4G3Pn4NXJ1AvzVYZfs9ubRIY45TRA.ADVKoW6CO0TO6z7VdV.26mmMHTSlcGIs2wYCM6kC8cKriEYMEmN4C13kCeibBE76FAE87sSKpKKhOLdusRNUMtjWCxl1o0eSFlgRSPzodkGLKqjc7mchxVJLCGNW_sZgbiP3HaBC5WyE3Vx1zLxWe9kMqUnGBMgXmb.GAif2iQE0RK0UAA_ziSOoClq7nO2133j6Y0PekpxN05V9AChpGnJ08Bj6jxgrRq._HMC4aGw47XbqtAYtHUaGYyk3_Fs6ItmT_.0KXi2DTT3eh8woIvAkbMDTWr3ijbTbF_A3dCOXhY6d7ATg_hkGYaMUVQvvbYNM9.Xt8MLcBFjl9XZGb3H2okPDPvl7LXR6qHuESJmfWdq0nM1XAflrYetNpiqZPFgXgHnWoIOBOxpw8vfsrfIRWkUbD_3jtFSi4TCzA_Y2TGWnVk_s65_KSr2Wn3CtJj6qZ2Pql4Y4ZRp1FbRtkopuKrIyfaGLHVjzOut8.CgUgRn05zbnqMgubIk_19kDHteTeVcgaq._Vg3TD5tMSuTshu9j8ijUuzpYlUJCbUQ2ykdZAMhBIBueN23QbXZcXXJ7Tsu2goezNGjRjWKXJUTytsaY3rdxB7aiCmAJzDt6G9jJnLE9B8UCeffEBl3PEr6o..hbVcxzwISFD7oSTC9KAXvh1ywaPEWZJs6_sEPdTLmB1cqQ5UfUcjR.kXHjm4mY47TwfCMFIqBzU5.37OB.qauuJpXCuODv8EhRa4MQJ7oUMo4ed1rMaFiZ0r7OBRHPFHtAbPAkFBkJWMK4ZlpHb8LBauxLqwoodi4aqC_fgMpAwuuZw5H_0NQge2RUw2X5Eleq6fEPm_WDiZIAyHnDx_r8qbTPmuSTyUnfSRpMOZimZKl7a0LTuR0obf3nWpsFvKLJimhVKAboZ0zWnVnnkcd9j_eXxZEYQy.Xt7QDlTKyAN6qt0R5LPl.edWd0Qw9hwOU81IeaFRTinVViqXuktHoXpAhuO0KL9zBjnU4rjm0BkeADNZRwz284uHPUOGINTeyKx5YiLvE3X62IvnNcEJtiVTcWq_ZctoszOtOMpfmDxM2xsHM2_inkaLCRn8V_1aRqd_HNwEHm0m7wshMMcsdcYf_P4nyoyjGEFkYnq0gJjDCc5iakSZlCkok1ZrYeFo_IRuMt49a1xuT5tFOFB0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9109d4c4aa107fbb';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\/3247108956?__cf_chl_rt_tk=b.Pvom23fgt_CYilwOkeNa0X6mzW5hCL1guP_DGbA64-1739334498-1.0.1.1-p4hqadvnXbDJzQzGN65HQyGQxuyfaIAehRlHMz1yrWA" + 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