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-086394607755.mit-edu.top/post/0291648357

  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-086394607755.mit-edu.top",cType: 'managed',cRay: '90fae9f879bec999',cH: 'rVhqRPlEX6icWfbTQSuzjNOs_TsjWDhldrfBYFBq8Gk-1739178080-1.2.1.1-LWmjxuF4wjqW4sJxtlU.x26aHgeSacDrE6PV1iuY1y9ciKlTMakbgIwEUb02Vh6A',cUPMDTk: "\/post\/0291648357?__cf_chl_tk=HE3kbSas6CpjR0bC5fT7ZcJLXnQSElNkcfzCBMvz4gM-1739178080-1.0.1.1-KOQN7cc8up4QVFNtHDvJKVfVnzzRv8ueEW.xqQhQqhY",cFPWv: 'g',cITimeS: '1739178080',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0291648357?__cf_chl_f_tk=HE3kbSas6CpjR0bC5fT7ZcJLXnQSElNkcfzCBMvz4gM-1739178080-1.0.1.1-KOQN7cc8up4QVFNtHDvJKVfVnzzRv8ueEW.xqQhQqhY",md: "f_ZgQH4cR6qJIjwZFQuzHnPS2Eh82J4Zwd.TlF4UWos-1739178080-1.2.1.1-q53MSvUH_Cf.A_NHYXTsg6YivGuYIDtOgyXvJNQVf.tjym7aw2qiLNEHUNl31_BGvTXA.LT9ahNQEuUdpa3.6LIDzyfR8Kb_dFaaqXrxxeK6luRZv44.EVU9vfFXDQzHyVKB6D1v8PhYhrVUvrskK9xslzYYUTz2U3sQ7t26NqMUxDLiLNIdx_T_FgVrGWaTkZW07vccOvFVzQ2OemYaBpddu07hALoN6XjEwvcPpFGyn.D4VMMhQYVQFwww53XZdXw2MbpG2.21BLTxyMgQ.s3dTIuAC_f1h48ng0BOuTBSA_cyt_YQtB0Me2rrTvgg7g8HIlEfPgct861Otz0lfWGsnyu0v8nWaM62hi5FAFvdzNBipOzCrO3xhrS7N6LYzP4FFne6qvbKu17NlLQXEPBVtXYes.ZDs8lgfTfrKxYIq_pcX7lLkb8RKah1S3NcrWCUARrUI7BD0_CnArWsIpkhIe39znjDWtAGh5oJ763pICTGR9flnWRR3EVep19uKzxLpgf63GdTWGKOfaolvgwjvJtClwMI.mdQB4w4EtODX2MmK2p0rEE7qPRmb7JQ4uFiFdKOWwnenR3X9aqjI0C7F2LfyyL5.dwB5_9Ip3zgEqsFD4_Hs2rhhxxwkZE4U24HWIr5kREUjDeJajLpRQgprbvnf3YBoc2XdCyoOZGEgQbUOMtRZNWX0PlQEoTuXTxw_IsUmAfNATnQH3quIwxbsde7wg7EF0MXsC6Yqv4TxOohsT9ChRaTVwzBQt9GiMvuFm6CPoQNxHPL4cUcY_QJvTo2TRpA2EyYpJiO7l9YwfWbowsNPY1K9MJ2FWoQr0RAtwZgG.wO9soYc8BCdp0wqszgEvVUk1QJaI75oHH38.bZ7hNRYFqsXcmBhxSA7CC9fuUDubmXR5sG5SlkKpUsSD3gYPk2GshEdVc6dem1BxRd2Bjsx3_Ae24yh4mXZnXhtGGsVp01EFX2qfLiJsShUOg.rUEsKY5FWwyT5cgHkGxlDbvRl9OzU8yrMxBeWeCIAVUj6yX7irl2D3WupiO7CYstG6JsmKhNBILKqTxstiZ8mz6.a_Qe_r5KdFZv2pFLXJ9Gekg_E3WfA9mjBd.T3VKMJkOEldbO1nuXlKBhlio0Ls40V_Mp9REYISRMjfPpR4ty8XyNqKzHGcS2Fqda8yIh.YfwLd.i8OUwXA_7whmpUnPB3uMNPn8NKZERLoZvLehYZuthQBdjZTiroSIFJnYxfZajJ9tlktUlwq.YLpi1wDtoUZs7wHMK.rpDP6tYPrpHebTqjfHZbCZ4nfsW4zqKgGErb4wBUf2oP_mBSwymS8jx37Aa304xsDNGbxEKbc.zqCEGoOIj9.5kCj9cJMI0VYsOLvwHBnSO7Tva7T8oS3WOO.2C5H5PhTH_bJguS_bRVsUXxIuVgEbMmlP3RUi2Q5gPTB1clraeL72.wa62GwcaxIJqd6FdZZxN1ldOg4DzrOV3ln1XhRGn1w6wr8MzAsOkStST9DZTabUBw1P3gvaxmQlSP.o.zQJ05XlGqXNZsB2Ei5cjWPk8ylr_lxvEWW5aTnFzJ8LCnonWRtNAXvW4mXAhYnL_E1EGktLid5oU9TH_bYzX2VwcwZfcjVVBmpKlO33H.L.iFABf1DJ_fh_HpCEfUqvh4IrfApw5bPjIKbqrlHKfLNxlsWihdsMle0tMplrzKu_qj96381P98kE5WH_6rtpWyhOqX5VGR0ppi_c8j7i3dWvVO5TAIJV4WsKoYGJUDoJARIGpuosugEAhjAjIaa95Mcro4uuzzcJZzz0yRW5N3gLv9gMGdhHuK6tEgv7FtRDi6D70KunUPWwSO7Q.iwhmcKkfmrzRPpD2JVXBqr1YwnQiIBwiwJw_ntgGOhy0Q7tVyqv12YXvn5GeVJSoIQ8ixHN7sTP3s.bInQTjPl46EfGp2ehei6Nvn_JkKR._lBKYwA9rJwNYOooi5Kk59WbKVJrxtvToWFD7KVeRATZQyPKGFzYHMZSi9VS.ZBOctNTrclJFg8ZuVYwy9R9MAdInpp60fCjSZhMcbyuOUbDPrS9A6tD3ILvPcqZYy3rs_9K2kBsLMGz0NcqCABDt_jbGWKyFHb0PjNCVIahA6cfXGGHiFrfzCPk7pV4l5tjE0vWRmfPwsxGn_DVlveZdF5qECBYxovSmC6FJKtvMJTCUc3R7FH6Qh03x_5VsNeaAsujETulJuOwnA7JJf6YUWrD.h_nV",mdrd: "vGCxBu.sojFOvzDaik0hOQDLZkN1nOIJkzho9F4bYOg-1739178080-1.2.1.1-9_JowRU9zHGJ_.PD3xvMdhZP2wGd84DR3r33XAZbU1ivsnPbO0nKjlVCuWmIb0UD1Mj.DARO9NYZNG0.AVq7OxdONkTzZsONZsuE.8iOunnv05iSbZne9Ze4YNVZNayL1Z_fZJ2pR4g.ROXEZfJsQAW0iiU7p1EdNEqzQhVzXPZjMKK9wigV_mTh.6BU.EpDYUt7DOauwMt5xzKS3VzT1PMXlzUYZYxncIGIY.eXRzGryYSPQP8mwp66JkeIAJAFG0Na.QwK4E9e7zcOIFyH7lx5Hj0AC_yAaaf1eUJmOCf0oaQbFQgjbsHVvUbz.yCcXgxPQEXakeFmnUfxCCTYeGDFKd1x.yzP0wuih5KFQks0XbDblnYXoODI37xQdfq0b9jQ7YhVeaQiUwttKxpjCZvWmsefwtUB4ByqD9ARzBuqPESbXgXZG44le9s9uj_SeiJ_7s5ajNFJnIJld0OhhabtBBQWZ8Mw36.er7ieugyse3XwkByAkTeJ.MtsV_YbY.859zwAte1vKsOK6xcg_4yi_.u8ayrSaK1RPhg27SdNMqh0VdvHwsiZVO40Oja.oGVHYK5mRGdkwE11SxCBYJp37cUlspbLKN2Y8XXjn6QJhtp442eHXVx9Cw6jn7mrIKpUtJNHoTKHLc6_VX0zuRT6y7ThuD.aLoZbNsga9jjF9qeKMmKxRMLhRZInjklGhA04Dfwe2ZNXJL6S529.rRSvrKapoB16ndHNrDtoqC7gkZnMjkcmZdJ0If1jsv.LkkEzrOQnnt38uiCTvq1YXYXCcxTIGQCyTQpp6JQSaXSjlkFSzwD5RO7NI3h5YcYdTHKPNpN_1H1CcfFRgCyit8VkfNySqi1iTnueOU0kfc6pzTwcTbpM4wooy7J7B5GgddsTb65iEzqfwv5z9FlRUsUwyMKbAEI4NEyPptPQFYX0BuZxDof39z7CDDOwAnM9DPKahakweYnKTjfK1lfQ7KycnDqBV4q4g9a2W3Zrp29fr_EtoFts5JiNJoKHTBTnf5i16Ris5sak2bPXbHwb9fs5WVpv44fLJbKEEOCrBPy3BUPc7mX6Aknfw11j63J097RUxEVLBr87.aVrBVycyN.3i.eyJ_0kCjrgdV17yE5YcIXokZY4GKTZTOiPLv4rziHDfLtn6gqe5IRiqL1fbXWjz1x6IbzQ1vCHMEtnt5k0cy9pmHCAFTi4J81ztfpKSkzvA7qsIJJd_8eiwFq0XIRbk2QlkfUE96hBwpYm8YSrB8u82s62fQk91.q2AqO5.g1kC5YkXt0V9ZLA4B1F1DnR5ctE0WODDCL_L62x_EgzcAmYIO4mDnrbkSxpN.xJwfFECowoGK2D7.rkbWdaUQFD4adbVWsis5PfdLmJUK3VdujLrr2maOH_vQWD9JBKHhWKd4CJYpa_lJPY.d1JqQJ8M4_YvmqxM8cg4vJBaHFeUl2J903QOvE7krCceevno2IYJaR1udwcFUSlxkQKAhcRTTw4d_NfgBkZ3xTMgbw8SyN7eTB8r56Vsf94MnK.ZtvSJo9X7XlL_8SGhNtYcTvpJRt.f2BPBIGSbxmT9oRvVhTEAUvYj.Nf_zgzicfuqdtvHyHEVXmWgEavh3I6G1rUsFOm8FYoutUjJrP3vUxWjnfc59pljrm7ApSdyGfaB6.TnZksi3_FkWKqT3HfI3hLssqyfNDrgHCvbgrqc0MFcDho9wgH5b6UnaWg6rXbziNe3KryWB.jODd8pE9w_CvOWhrPcgsAC6q08HPJ.Mgxzz9vmgOXXef2s00dYHuI6C4Z3avnsHUTn6agEBHBJIEO_5WaqvvUW1su3kW5OXE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fae9f879bec999';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\/0291648357?__cf_chl_rt_tk=HE3kbSas6CpjR0bC5fT7ZcJLXnQSElNkcfzCBMvz4gM-1739178080-1.0.1.1-KOQN7cc8up4QVFNtHDvJKVfVnzzRv8ueEW.xqQhQqhY" + 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