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-aff26ba4v.mit-edu.top/post/7291386405

  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-aff26ba4v.mit-edu.top",cType: 'managed',cRay: '90facab1785bc9ad',cH: '_wIIMNTaeprWBiKmTNgBUmR2VPot51xNoWP_zILDHOA-1739176798-1.2.1.1-vajgrE5PpWheGZZDgsTlW8S3PXvphZHTmFOdh3wAS3htYaFHuMrB5y.tXX305onT',cUPMDTk: "\/post\/7291386405?__cf_chl_tk=2lV.A1KFiklyYwCFrZO5vQ_wA98GeRdvhVFrL2GPIcE-1739176798-1.0.1.1-mHhcEsy4BPQSINkZTw5k1VPCy1weapcjtRB3QxEkm74",cFPWv: 'g',cITimeS: '1739176798',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7291386405?__cf_chl_f_tk=2lV.A1KFiklyYwCFrZO5vQ_wA98GeRdvhVFrL2GPIcE-1739176798-1.0.1.1-mHhcEsy4BPQSINkZTw5k1VPCy1weapcjtRB3QxEkm74",md: "dyURl4E7JTb_RqTMXyu5f4fPM4uGoQBi0adUV8CJ_Rk-1739176798-1.2.1.1-WatGed2ivNqEiFXXJsQ56sGK45papoE6DLJfcYccuhgKw.nytd.YHqhODGOOlOShgDQlbN3C_DFYHKfUVVZvjjf.gpQSd8pHOkijuR7qQUYEabNOiP.noTjTYv_VMrdkj1d.xQD5HUIaEb6QojKcpdTgMPl5mCzMhHb5IM0IgGVqLeJ5gMVdOPp58.7OH5Wj9oqBAO2MZkb2WOnopvjGWD0hlYCwgiNtf.4geGz_ltO3FJoVH.wMHW5bO7x_sSlBpCLaiaq8sKR9oiAYtXdpMAoC50.2Br88wL7kklT49_.lAwuaywzGOccoO6Kjz08NLRu6oCGuwVjxIOCuFv1xS1klbrOae2Xe5EncXn9tQ5O8H7WpvjHt4xPVqkLPpV9s2loJwfDGbKfy3wIlfeGNSlO9rkOcdN5r0_u15UK0SLEu5gD5uKqg80rWTFc16JRR8Y90gwUSiapMCwygBQW4ISQFq6DHLoOMLwTSZAcPX1Z_DCTdvHb.s2cV1WqhlOxVwqEluo4AwAA1RxBoF3B6YpRKTm2izjnGfHwkrSalukI45h1dKgRK9kqYNDAY6BUpf0K6Os0BKpQxTY3AvKvNYpFe9QTF8La1n5nnyZY5lMeAgJ3Rp_ZYfNISVqvGhJmGgHTlPevkKF.aYeISbYa_s05k5xQ7fZRJD89v2tEtc7CSR3JoMV0ZqovPa.0_kopgIl1M20HHeJY_n3mk5gwCrlqnwxsQchaX0LLylXkfSZS9P6y1n4O.SOb_65h9nBvs9lkNVDHOOdmnk6malSiCaShWkHwZz3TU33jAA27bEzSJING5AdcY8Ko3BFRHez7xGLECRMAIn9AOEKCAs8JuUrlUQpDaJJZthh4eq86pqNg93U7ejU1umNXLgsoPTOF5aTCrTzPZ7mo6nIof8l_GSTyv10plLAXOfwc0jN6fWzARQevCHOeeRuh3cF3Dx6aed_x87GavfK78OxhYkGxlgpLYN42VIgN2qVCn9LnzTdhSZKbqg6xBs_7uivNf3KDe0v1Rt4NWDqUbO1GQzHg4XQY3l5lQHikwS3roeDMsx3T77a_Yz.K6yjQEXxWl2gkJ9A7NAyLXTJ_tW1iPnMR6iDfJsMFiT4UyC_D95Sm0co13rG7ZshMPjXmOsHFgpAHp2wvYnOaP7g2DNLTtTcEkCHzlXlygkIooCVolHBWyBWl74be_7R11Dtek1PRcuziuGX9pcUqdu7bU31MFIB4vb5x67cdozXce4QVKxhpgIKS0QhXXDv3ERy.ieBJYrmdXxQMrClvH9ph_KqUtia5jP93TL7QD6_G4zNZ6eVPXLyuEJQGrwOunGZO6mQrpzHf_7NzrxK7oWTzXlOhuya1Vd2GBA8Kkocp1VR_kO8H8e.ejq1INNILknZ7iQ7CBDuRaSz_BcCkEC4KRrmxLLu2MJ56MXe3eacO3knbwXqoQs.LONcS_5IWt2Hu7XzUiaQ64UzWY33ZS5gkdJYP23vSEeRggvxSFOhd26t.MqCnZi18mAmEy5nkliAC_B7ykTRzh5eN82ZTxB6ZXjAzuqDUNz8_Xmlb6xdyy0fif_2.cW5Kn4NBGf4mfmf1pVIIEWoYLhUUabQLATaMrCoH1oyBynRH_HNV_1QAcJYUnPBuoXIPdgWCU.rtPyJjPtIhTBdNQYShdds_kAy3ler.0bxA0NQY2DM55cLQg9.8g6nAnO04IdWH.K3N8BR9Cg9q4Hxs6Sgkwv_ZBscQYCsgdLxfOkTjt.PEPZEJ8QyXWBhnM7hE90q3XaaokyBlkKXbLVqeN.MChpAY.uqFEA44HWLSO.6s1gurunrLKnFxR5iZARrjAxZgPRV2pl3JoFFT3ubhmqTfVjRyVYudkAldcSkITLJas4_PLqew.3XdCYFRnC2dVgh3i51NbNt.YW5UKLYT4_wv3hgFOv1IrpWP4ysIRShOgMuiTqUh7BYXLzfIsXKO6rYjjozD6OmAKRC5OQ8Dh3gbmHw7LAusmdDmi3ZmyIaPG9H3u_wNzF3cSsdzhNMbmC1SuDEpHuLg8tzP0Kp9ljZNtUtIAIepsLK1Rpw.kI2jO8V7MxHIEd.h2mwEJXPzGPrai9BkFS0yIW6a8XVHJyUNhikHLPSrwfytfaw6gLfFbyPlTu0tb3wrm8jit_7u36p9oVsLZeD.j_gDdOPlKXWbu2MhvzAz5wt4Ijex9uG42SVv.GojRsKeQsSpiD0lmy9W.RcHsdAT1qttNPL_O",mdrd: "IQDaFVm5b.hcQvGf.fg857xNRT39LZZRR59MxSMdcrg-1739176798-1.2.1.1-JVOZFAa9SmueU4Kpr9rx6FuUx7tRooVsIj27vHXlIx0obf9jSiNK9ppVX6XH5m4xZYo5WbYZ5W3srdxX4ScjP98wAqhdw7XsHO9t0nV7bRWK0WqKx0RBst7ArUMuTHo44N5h4l2upw9b60HBmwSjad5fiYc.dc2oIpf7MZaaNlFsJEDjKH9vIOWUs_bmxZpY1.cTwIYPBJtb70YEvLYuVGDhCr27RVkt3YXGmsawVbJ6gTbcGHn2zh5jzGAUrxQonYDxuFgg.nUqUfZubWzrRub_m63eCFKIkpoOsy9HLBEOZ6iH5vu3Rcgx1S2hOhHcFoni4eolnMtOcH6O3vMcwEw7nYKJvG_cLJZLnvE.6KPDwetu1fw0RUJ3Klb64mY8ITVQ.BRZm9d7b3aPG4SEQM2udthD.Ku2DVuqSkERxFvhVOSoFOJMsLckjc.AG3zQCTxGe3uZRgdczt8nDasSm8_odAa7JHeJujdwRYV5WGoCHRZUtm4c55HXayGI5MuH7.Dx9Ui6XzgarnP0vAfahloXpG4ras18Kv.11Uwb68SARGmnSDWIMCQwQtXr3TEgYD16f64rwGKzTo5Y6Lc9HtYx.oohYC0oKnfWF5xXeR0JM3iR42tUQGuShhcNLcV9IfmR3XHYB9UMSFnCmk3lLSkwjRmWHzKtK7QcwhK29NU.EKC5rnnmogkYJI0QA0EtmF_OfpSGY1u2DlumdJapteW1GgIM2JYDtfCpgTCHifSp_XhE2c47jRKOKhFBrYEiPj8oqJc2K5OcoVHS5o0kyQcAUkP4fv1eJvjOjcYcGgqFc.ELLwswCEfmGdoFbL5dGHzfUROh6x6NSICvDxmcOMIbHghU3HAxPSJ.y7K2WbE83ZuKyx8TVHIQiR_Ps2LEChw2zqFDAQG1a8W9VJ9qWmvo4yQ2fkav6ozRDX.1hChQ5lxUlsR7f8HGP8Wgi3t243qZlvZ.SKW.h6oibhE_1mdXPRZ69c.A4pJyFRmTTuVYGZCojYa_iCZms1HTxkJCAENCi8_rzoH4TNhJxrCYaXzRmKZ.H1PcKaGgeebKLKGQ9Rou4wO_jbaMKqBfunUQ.yR0UruYl8K2lHx1IfZz9Dync_MFSQYzA9nlc5TpovJ9foEFcQ6uwnbp6.dzatu.9HELl8J0gb7.7qxvVXJS6oXXlZ5HlQSx7stAJafu63SQGKSEgtn_l7fcj9tlm8ky2eNJAszAnSqhmjQ205_oKezjpSFi0EiYR6yVoTPbsL9asDNdKtxwKglnG8.O1umzpHIxiNabhaDkSicSwWeP_DvWzp88j2DuD5XgEgBEralKy3ch_ee6l_lYAJ.G8G5dpKAKk.8_YM1lWNCRD5yfO96GEi2FRh1F4Xb9c1_Prp9iZjVV41t3Rw_fTBbZ9Zvj7i7bYj9y6nX3tDduNtP7X.Bvv5ChWrm2I6h8kCjdaDZCiIabLeS1b9wasTX1uCzK_YEae8nloRixBHpHeD2_X6iUtALxP80cJVGRbsJGPSjkh_kaQHVnOEq_TpQAgGTOYErU0AsZoj4DkWblIF2sEgCP3XkP.gSesXBrMvaoTlnBUwOHnaI.6CESTCB5cXrjcY7a.isgN3HBj2diEfDh6SnQdmIUxyCon8ccL0qj4JjVYWetYhfiSwLZh1UyDyxG.BzWFfB93vzAusquiSzdm.ILH9A8jX4s4ZEIg96NAp3plzAZoLytcEPROuO75Ad7ADEtGkjCoCkvAzfJ6rWHu2akF0.BzLDIO2MVamcIhfOdfGT4OUvXoxJ2kKttkR4Y2RCqU1mI8WxMR9MaL3UG4w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90facab1785bc9ad';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\/7291386405?__cf_chl_rt_tk=2lV.A1KFiklyYwCFrZO5vQ_wA98GeRdvhVFrL2GPIcE-1739176798-1.0.1.1-mHhcEsy4BPQSINkZTw5k1VPCy1weapcjtRB3QxEkm74" + 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