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-affsx7dw8.mit-edu.top/post/4130879652

  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-affsx7dw8.mit-edu.top",cType: 'managed',cRay: '91104e673fc1d6a9',cH: 'RHK_ETIyjLWDZ1vqk.JELmnQnkHxD1yAE0ENUnqPNM0-1739402394-1.2.1.1-SI3bICsnGEM5rbtJo0szgSpMraAru7yPZPitn5VAzHOc5UFx0xcXKl6dfRDrF9Wy',cUPMDTk: "\/post\/4130879652?__cf_chl_tk=IrMXl68ceYel2HRKqXAiVkPSO_6P3E20tAmziTpGBmk-1739402394-1.0.1.1-Pdxb39wLs8HNPfBwxBZQpRXsOBXMLzDygVEuLY94VB8",cFPWv: 'b',cITimeS: '1739402394',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4130879652?__cf_chl_f_tk=IrMXl68ceYel2HRKqXAiVkPSO_6P3E20tAmziTpGBmk-1739402394-1.0.1.1-Pdxb39wLs8HNPfBwxBZQpRXsOBXMLzDygVEuLY94VB8",md: "HcljGrBZyyRPXQWP_thZJifzMZsr2kvCOr6tE1mt7sc-1739402394-1.2.1.1-MsPaiK3YiweHdFKAqaiVwbpRo9NeDPnRi2wDSbvTi50.XojsY_6h5OPjtQ7GXxDXtpHhV4IdILr5pWyOThPoojW1eWH43hxTQwunXah18gNTy_pHT.t7S71F52Gt674HBS2b3nobfvSG9Pfu9jcql..nwQMDpYhOiAyWM7S5jPMjun55GH7t3rYScjOQcSzydPWSofEO7eb8k3t6Auv2zmhjulY5eXdT9f_qV6FN39xqwByAXTA3xYi.qNvjXXmVNDtuy3mCNlkBJaHjSl5U5z.c4_KwbpqyoyEfUp_g6Sr.3ZO_IeJ735ZwgtsJy0CY8YdXF7Hj2023JwZYe96xidcKIgI8lZLPcpyBKpySEuSxutrUeAjFKy0WppOWJpe3qWBGpx8_4eidef8_Tfnqf2FgELM5NVayodPZmoMRshXtgJl.LqHDUjWvvfwT19uexsrczVl2xuarNjmoGOd.ud495bYNRpshwGdXlKocqJvLOo262tgdsZz5PovnxitdM3VipTrhsZJZ39hOEb7ACsNoeEJpVPBSO2zw3d8YQw0mBFYG7SAWN1jNMsUCHypHtbEmcs3QQzlbPAhxrbmL9EUE9ivK5n14NcnIzWCF1k5JwfHxiVrUkUNH.u89S7EtDcHSIEhJkGVTTzhiJE_EZMNG6Zh3XbgxpeRVkm9Bz5_8.BemJ1x_kXx5XAgJragezAOvqfejVnIqJt39EPRD7buRtzWNa.dQPQmRYfx9i9nEPAxlJjNxMQ65usXGZ9wFKrz5HRCsbQIVsTX.zfQb3rGzVLcoQEcnDkoXCTei71pOdu7iWxnHYpdax_wSU4BDSOcsy1AcesDLny2AEbwk9gVteM1tqjQiAkqfDHz0PcK6I553KDBaI9qG8OzOu3jXKC8nrVAjUWbsumJUTvUmSIhLkzGVkGWFNYbrklJGwuL.ZX9mlIcnxD7YNwu5YWqueI6mVKtieXRU3Y0q0hQuct5A6t27TVQOIHc7n3b1FXMzZ.lkXQI2g3m7RoqMkX5TdmewLFHnZMH49ydTG4Jnm9odkwEpqrZV_s0wgxAEuKu9TOdwuBXVhSLrpLGwIqYhHwUTyYCqjNwZq2TradUkeuqHl6QunkvsSJVKHlxVRJBIkeyNJD9Kq89eTfSSCfUeASGRWPMRGE_Cu7LsMuBDwHAeec0jEYm7n72BH4S.1asn108t4tKnmOM5D714a_Vq7xIofKoLDZTlUbyPrXIa2D3ylPcv4vuH4.X0DqsK409Lobtquiq8eOutaJ3MGBqYlKXjtUqOGpcMsyQ3ZJ6qHbMfhN9ofe8HbmmJavQZ4GUPz0SsTUZjO21eiRfaDFZjMtBceViN06sAyPUyTzC1IB8h2gfzF2MzpEgobgDgYkM19.xicgET2T94g0irMTD7lR1FGlEnl4WS7Rv39.Td.WFUM9PLrtYEP_wMmI3TzWbk_DfcMMBp9UmziYAD15gIgL0GFSlmhJNDn0RZh53.T9jK8MXx.g8II7VczQ6yulHamICtLcQB9vKugsVLumE_LJRuhf3KRbqGwSOiq3fskFCxkqXzgxXboto9Bh8vwUQQkj0btKLC08QEmaXzbtmy9hDIAYMGfBj2Nlckmrrr2PQNYi0R4LXaD2ycXvBFQ6TpD6mCUDMnAjxSGJlBsC.FM4dX95ia9ToKU6LhZcQ3cdZTB_1tfKOOUebEI0p5cKV2jQFCq94wY3GOsh1zkwPzUMtzYu7ccaoYMb2eOBvkwLN.j3T7SvmUJJ5RBe6IojOXP9xZh1MDTEH1.rkt6uJSGYa.mPbTrocRmXrLb_6Iv0jVmfS9iNM7rJkV.2Wx1hR.e6hfhWY780RGKDTh0BLYinfI1jutTd.wfNPVIFjlLcrn8hE3YjaCNqh5uWC9Uii3Jhv9.U9zimKc6m_RLNHo0XheYxrD6eRyh3oWsabPUQluYIDyMWZx9isXS9KMw2W8DKKl.Qoa.5ip48r79KCwDu4SkAbH_BUi.8iiI5JG27Ch3E9i.7EPmB1dAjYZ0v.I0d0fpRU9An8l3pgBCe5nwNB6h1wcHxPcd6xBrDRFaHACIYSFjHaz87e6313l4pJXYJti0h.Lld7qu9C0_gNM64auzkn8GSrIevAB0nN4ckxMJPe8Nf5ZUGbkL7CWXzR1pBivgOQriQ7.rLlrvOEA4_f7UG7T8XHA2NMHKmmWMzOL1JNZ9lzIAw8Ivtj5LMN88EaKdgkYYAGL3qDifnA5",mdrd: "ivyu2RLbVy_KRy6BRxBMX17AsVL2Eqiy5kGlO2Q2Hdg-1739402394-1.2.1.1-RNAHJcByEFuu_lsHgVZqUO1VdNUHVk213hp0lk.UotzEsNLvXwUwMPLcOG7DuEnX8PW1gPNwq0SzLoJ1eoIH0TX1LCkthSWxkrGIQ1V8_UI1rLk4PyIv.zuGlYf5PDjedpMoiU.KoeAnt2aveY21oiReheqz3Vnhs6ZfUnJDNtxPMVLo3_oaSbqSx9xpVJX0M_f1t1KnfdD.yrjFxvm1uBT_HqrvsnbxxIz02iFzWJroKn2n9GwVTEBuJpjYzo9Duu4XSietSXkJ_otYB.1j6EQzwJmINDoJ9EfEBIGJfaIHw2srTcXySFX7sWlgIcaPS5ELnt1FMsiMv5lEqKwVdpNtGr3T7ynMVN6UzB9puj6SxgFNO98RPWzZ77cpLcaFaWEb9Akxe8_6cQ8ZCATX7o.3hcxb7yRMP6EHUmvFGSvxnE71lMt5jaftLKREuvsb12qly.5zD9SsvNMV6jXeuMb94z3S5RHjI9u8NsL3TpaaQM2ZBZwe1EkQVY9XUlK05wyv5ArqzCAcJtg2s1KpZjl4pIZXZgzhJ6WJvSIldTIFrKcCHqE_MB6LwdDMc4otVhxbu8n.jBB7wNtv70tfpXed_lSTx0kWzOHypbuM39rne9N7enHHdvxiH7rF4GMRRok3Tzr45fC3L4Z4fVTXbSIGe1T2s8yoOkQYlZ8DCFEgcCALtKnQF.YIxA3b32rqhEr6kedUGshk7CFez24yQ3cwJ30F.6ePntSW6wsQuBYukTwI85SveiGEIf9LQmhvTs4beG_vzt3.7vvbrRkespNNk4ls2EwL1Mj09yHx1YIkwrj89t83FEfLiFlsBbqWdq8gHyXqUA8aDeboEcYLsUYnheSfVDd8.bBlTdlcE9_fJhbpj2U1uIxy0JpxUweSAYgM2qieHWaCff3Hlt.N1l3a57hNFkw5ZTlOBLwXJ9tJl5Ve_pDsP0nPz_KZ99a0QejXXmhQ_TgFUUrk.RKjOLI9iOksj9Dk6E9zQ.GWWNiPUb0JfI6gOtNa.blCBs2uaC8N8hoaI2STyN6n844UawUAS4RNBwO4v.O.uDQCMxILWF9lnDkuzjNm8F0NbqIpqxFPD8eliq6KnRAHyLmEhxW0wZZiIefgdNk.oSTM.r8B26Behvd0lc2plBOte8jQRyXD9rXzkI_7q5EdyAdI08d_9dzMQd5f1HAc2AcbYFLPigJWKwqU5mN9.MmqEBa5Gk32wkLeWkgO8.R49EKUJ3VMwsi1a4lWVlZwAX35duC4oXPQ3C0HE4sfvU5iidXJpC2lpnHyTfwUaIDKkUrGrcwWzI3RrQYiFN_cQ4YeWqlNmhCkNr82PG2g9s1pHiFdq3T57CIJY9GvmDEzw6TZu0n3wbdmQ8F9uIrwYPO0_kKfdY8nkq3Q7H9QpyD5FXXnR..3nGcAmyG8d8HvrTSaEoXPEVTJzTiqywlGV.LZE62_MIEb1RqQKXtAIJzGO6P8yJ9Po7Eyc3qHRpXSXMfYSr4Gu6Mc7PxjySDVl2ZWj4jMbJ867NymweHLMMmvWkURKZEsmPQSIFpzHUHQ4pBLrUdn.trw89iFyGC8gTABOrqWp0pxCbblAzTWOig7J0wOyxI1xe8iWz6xG3zvhSkKmZ4mKcek5GGgmF55ODhQ4BIVNZO1eDOhHexStYnrGvU18RVy7BKnJCv9o6mkBxSvfTkUM9VOS.hvEJ4Puu9WuFQxmaMr5k2XstOXoxFOn64wH5LdR4RKKA6pVxljIlLxVsvwl5f1SMi9KQmZbydCBWq23Vfz09g2drJS7RyHw977AmpoAA3xvXKfB.yzvnDRt.E5KN.0PYBlFcgQPajFrbg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91104e673fc1d6a9';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\/4130879652?__cf_chl_rt_tk=IrMXl68ceYel2HRKqXAiVkPSO_6P3E20tAmziTpGBmk-1739402394-1.0.1.1-Pdxb39wLs8HNPfBwxBZQpRXsOBXMLzDygVEuLY94VB8" + 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