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-aff24xlw4.mit-edu.top/post/4629751083

  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-aff24xlw4.mit-edu.top",cType: 'managed',cRay: '91104dc20c0cc9b9',cH: 'f9KQFgjVXimpMUngUgSvCfIzrmvbTzOuSyZ4jUmo1_c-1739402368-1.2.1.1-0F8VwUmzvtud9OIdYrzb_wPFvcaoczyCEj.Nv2kRMp9uOxti2Ua5o8mV3_Px3jGp',cUPMDTk: "\/post\/4629751083?__cf_chl_tk=VpHYnMeUVNjhHV5BYS7jk2UG..t_WNy3xVXjFKynM00-1739402368-1.0.1.1-PqZC9CVA7CgPFrYMQ.x9jUGUGGoigkoge97nGWdc7zw",cFPWv: 'b',cITimeS: '1739402368',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4629751083?__cf_chl_f_tk=VpHYnMeUVNjhHV5BYS7jk2UG..t_WNy3xVXjFKynM00-1739402368-1.0.1.1-PqZC9CVA7CgPFrYMQ.x9jUGUGGoigkoge97nGWdc7zw",md: "Op844xxClxLdOzrAkfDiApgYXqq8zdznEb2uVM1clg4-1739402368-1.2.1.1-oE1U.055XYVndizp1AMCMGveeJmjBLmrnnraLba3Y7REjXsRiQfc.y2cOfK7YS5yUSpKJ8qN4suu6VrS.55PqQmbD56eYxtLhXYbdrZHtGc5QA6pcY22I7yuoiuAP4EVCGu9MZoUgzrGg.2d71iVTNYYfxuflwHSwtxlUr6Is.msyew1tSqMuoT1RApLRKTfHp7PVRPrYPaLsu1wgKXkKlD0BCap7zYZYwLOvgtDt8z4xa24ZJy8V012quVdRrBDF0T.cUhsdbMsQwf0UZ2HBZQyGtWAgQJl2kJgrKMpybdzZ4jYT8FvhTqjyv6Ohe.VhC0f8U.nH6ud3juI5YHkCzzP5fr6lCNlY7MoDYpZXuiE9a9xF1MMru0vVZCJyxhLgqgSMI6KZG4CO6zfMJH7Ek8rzzyymMKPe5PDcJ4KYNxfEsUYhZxfVIibL24LzfUKbmPdbtaS_TvKC_NUyPrd2KE4mlk99ECwpRoPNgrsqTOaG4TOFj4aonJuirKqWzGXeOGFwI.Aydsu5qYAa1b8daglsHvaYuQmKRHIXb2mpuIsJ1tRhFmyOJLajUHtR_X2QD_XkEtGvIi.uoiuZ9cR4Ds2ZX7uhKBkr1ok5FSvG6z7uHQGxGgQgLxgB61v9XOW_bNrF78IReM_C_m06lLbXfomf8d68BaBGqwl4M5ehtinoUkrKtlHjOoRfcR0c3DnTzVUPRejK_LfJgVreBn0ahcVL8NOCpBVyOTShmITCT44Ar.Hl.WeSR2W2FtCji7ulTdda2pY4Ye33yR65X.6H8w9__fmk8tT.wXI50FFPinH8GXiugoel3Q.m9WD_n3X1Wbw_3GTtT8OSZLN44CoMyyCP3Tf42yry5saX5nuWrd5WObzXmi3XaG.v8A91gB9iDqOS8ZN0YShY1tnaqPRsD9AIuHQKaVdRccqLJC251Z_B04uwqXS7YwouC0pFrdxm7MZnsr79oc80jWPtHD8EKUulfoVEysYg6dy.C1mE8zlEH__qVgT7k2YxYYx3GSgQZz2BGiw1Ep11yIIMTWsLC0GBIjyEK2yBBojBJYzXc1mWGwMIss6xv4fgPgDKygAdgpZWriQmi48hqLObGbMYBFWYd0FTZWuGrsxHQ_tgOvuFP593YoXYUWMhGELRdYY2S6oE4K3bhx6S_QjuDrqEeHg42Syvg3sPYWX18eZsITB2s7s8jjj826qphXnKK.Ki2udlzd_pY.Taq0gj3Hn36OWhUhAJzWbqyeo.QPavVa2auql846rjX0JWywvR3PJzrS0pp8Z1DF81SnUwWxmtGMkHLXPhCWM7GK4VMLNsbqiWpDutx.oT2D4L15tQMYklEGoen4YTDy2ugww20BiKcvEKKLv8uBRQZleheqE5ABTNRv8mzvcC61KNuSZZDitGvA5crr_wYO_rkkvIpnHZD_sACxtTO8f4o5Njilh3Ov2YLiuzyo4_DILlk83gDQePQvYZaF3mjbuOAln6MP27aFVLH7eJkhHW9vjF8mZeaSgYiy3ZGH32QcqY7FSdRd3GimkdolkRZTU68ArVcn2tWCkm3SDYGSVJdrSZyS3Qcrd0OZfuY1PS3M2rY89j84LslPNQ0e7fqREpKIVoPEwgjaznCsHJzW9KAKR5R8SATabs0ohdFbH9iK5btQXU5J5CRiWORm3OwZ.LA7FjbRTuZYWPM39rw00rpxfuBaDp55qQPFbR9F9QBZx7CJ0ANDREAXcIEy5.U2sS9CgjVOEk6kH4XQ1QAwbhx6MAQOW3QZuNK0OlRHwYrldD_8nRUSP__GOGW0k.R902Ta9ME04xPkBS0_XsjzYTclZs3_NUjCQjbzfUDoMpCcAJig1.RMIh4oxpd0cpKwkasgk0wdbYeliLoAGEnGRiSjZUfQn277qBdckGcMJUkrR712O2XGUfrwqWrR3XWvjVGIsDz4ytXHe8TV3ARLK4CKrZJ_FYMJPXnaFZs9gjWV_EXID1yGo8paRMw3p8AOFrtliiFS8xvFHZl5vEkx73HuKtPjJNwdmE5lEutzygmTxsMs7KynIeeSw44Zw2CiMHpOueHED23cMdQXJ.aCfYnjoNN_RyOsQk3uEjfQM3wooqgjN_0YFpuZ4m5ldhZ7l4BjK1y4CRQ2a6swzX9AR7OdlCdPiBewffn_Iz22YHIl833EXNCUdn_ZYOpzqRJNk.LfdurgQHhCS62iHKu7w5wNR18YyP53p1rZBbsLSDHeLvbd2Pjd4",mdrd: "ucas1piHuQGiNIhL_wgqsGazsl2t_layFQN1WAhIQ7I-1739402368-1.2.1.1-SF_nLBDYP5o7D.uStxTYb3fR107yHhD3yU.mPThfB2xcnIH1hiAVos6kvnzyubI1KqDTbdfHDGBK1xORr8rzEkhx.uXFg0gniUhGBZVpR8WVLjkdTNbJtzkUetBnZEX44HCzB4EY6itpzSyp0tfWRQT7hXMKkfrWc4p9hYH3ej4R7w22kqeMuLuyjyL8rjnMiWRi9pvJe7D.w41yuG4Gs4nqEmKWDRcbsXNb0pV3CsOK0GInKSLni.OnDkPVxCmPpsXtIojxumFkeMoKkZTwiq1uUIpmylv7ZfzpTze_UVW1BvMFq9owF9eNV2P2PLzg0tkcRdBXaitxSXXLR_HzwpgUHGbROJlouoX3yibyPcfYuVtBj4mVyBUOfr9R8Wq6qVlX2MEu1PC1OeyB88BE5TDcbJkASjcKqGFefZYt6DDza6aHN4qnDSMZTXZpcjaJAI50Ak4XX5VPO0yS5kdox5fzNjga9BbnFDHx7PQvnEqQNBeyT3HcbwkPIAmO90PUUb0zhbO2.VVy_VvQDPzIRtE7Vqtg.L0rvTLSmdJc97Fx8ETF4GtgKAKJ0zg28YE19NiZodOwamhuD0iQT_3Z8mMDJG5VdDFY1M2Rwuff6KrwRQ0dP8rzcJlNkxcjoinUpv7G7_cQh3eUbOWZ4yVCS4jxhmztoi1itAgB01mTrEOvJfugnf1HofSvBpgiELAypw47pJEG7VIw12SHieBxvLIMSZ1rWofABq8_Eey7IYFy2Cm7_xmDOtu3y0VVblUhhufmTf4ZZ3CK8HY5HR0a0QeJomkHhlld4r.6mGet1RDtk.xMyIeDXPT8_bQjbgtMhR1ALdxxgNUJZbNDJ9IM9etDUs4vKm1dfbV_oDYPdZ1tc72_nKffCUjGrwgDqUybK18rETcLEOWpa5Sf3x9pQ9wm3errFoOmJAPmmxcXVkfriGsUxcg5fsmTpwEaiEc0MQE_nnf.EzzYa1gnSWT7CAV9Ks4udzs587JTzedRRZhWB3NTvXOkHu29DMXIIh_YzWw0MSBSkgGo18EBhILhQX_jcu8CJjTulpNeNReG.BMs0fxpUbhaK1v3zMisjzWfKcTThhnwy9jRLsLyWuBsQetq1KQphRsAgT3XnmoKn8QLjJjTDFrIRDB3r6nafojy3ixKd2rZx76btX0LnDqTbPNwm39r9yI5ZKJ1PZ_HJ10GPI9P3Sdih_FYzIykWqZ10oPouDVDOConEJX9_VBCJOrYwkgy6BWG0cTHgT7Sz0XjypZJGxJB8PuiWhcRoFLDpSDn0e9oBh5Gmq4buy6JZ10LCRg1MeZbCZelhC92VGmwo_HuOdBm6WDchhqKJfILDUhdfpABd6gldUQBNvuVBym8MBeLyA0JYDJwPpcuQWjJWKbFO9FULCn1c1dOqfFYiGxg44QH8ccWUenZ08pFBUR0TfcFG01GhtN1E2f4eYZ3hgey5CjUUEvpyZDfOi9u6LYIiNJgg31jGF56hIwMRAzSy34mKh8dxfoM3.yK6z.JQQYwBVpS.l.VSNUDh0JDGWF6wQa114m7OKq.oRkmVNZTuwdvmllDrV2LAYfHBEtfk03LpitT9YKc1OTmWh.emD_ytxnfWzsTcevBFzn66iKic4cfx_O3.khdRYaQvE_vp93u_kz45Vk8BT2tZdkIPbv4OrA8ciPKmD6q6UttSAYGb_GLGp06z_GmoyxKaOJVsULbhMsNQLx9UZU6DYCkj0VG44AoxqulFdQR7iY9_Y1CdGT0xojWw7pVWMLbOsE7ZZ.1jZUT.KnHXvp4iSaVJf8lSdfkpQ5jUFZQjkVnydszSBtaoAV4O3v_7fCSd6w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91104dc20c0cc9b9';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\/4629751083?__cf_chl_rt_tk=VpHYnMeUVNjhHV5BYS7jk2UG..t_WNy3xVXjFKynM00-1739402368-1.0.1.1-PqZC9CVA7CgPFrYMQ.x9jUGUGGoigkoge97nGWdc7zw" + 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