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-aff91d9wm.mit-edu.top/post/5763908124

  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-aff91d9wm.mit-edu.top",cType: 'managed',cRay: '910f6a3aac3ad7d5',cH: 'VNKcLMuyZbtbo2OGTa0AqmQwoC8EIZely0OhXdkbPu0-1739393048-1.2.1.1-Iq36iPbPaKR9.WN7Q3b7Mv.1oSrqaU117XQt4Pkjp0SjyX4V9COnARZDD8tQNEGH',cUPMDTk: "\/post\/5763908124?__cf_chl_tk=4PonEhnGSYPJRH09HB9B_5fsGEOh3zjs8ixJdor5kSU-1739393048-1.0.1.1-MRPyc6KByajD1XLK2_5EdgbTFUqHgoGDnXR7uWSZAp8",cFPWv: 'b',cITimeS: '1739393048',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5763908124?__cf_chl_f_tk=4PonEhnGSYPJRH09HB9B_5fsGEOh3zjs8ixJdor5kSU-1739393048-1.0.1.1-MRPyc6KByajD1XLK2_5EdgbTFUqHgoGDnXR7uWSZAp8",md: "Vs55mPPJG3_ub8NX.P6zdhhRvnMd175AOAE4_8SPIl0-1739393048-1.2.1.1-2ivPwqYLhKzJQwwb5weEGQNyO7rTU.GlVAEUJEEt79yh8jzCgzRPxtLVN1B7JEOd0Qd_0ctu1dmE172UBc5C7C4S.4gywVdKatZNrRQS.q4pc1s6_HuhVuDIqUuYcMB5Mxc51rsWUYLNSqYp4gns.1jhF6k9PM4Cs2vhhMctlxBVfVZdae6JiVDEy9TssbkyMdEVNW2Gx5PHvROmeRYABp9ipN.TfNSzlmMQ4SXo.2iXY73b5SQHUu9kw_RV4FE86P1EXOaFb2uKKOJzx8fB8rNBd3w.DBr7.Q4Bq3Fdx.D2vI7hhC8aAGDMO9QCbIlmV5TJrZ8iq46d8WS5H9qe5hbugaUduNkpfIHPa5.lEcLFSse6bR5xh_dOe7JjOpGjVFgwX74mu9t6iEMsjt7EU_hm4_jiwvRpsdtQJtlczJ0lVkPLX_x3YaCW1IOrQAmbr26db1bi5y.L9C_xHml4VV6DCjVhBSTAk29N1XQqZoUVaR9uwBK9ymvkn7owpZ6nsktyM5ubxOFgQBUIv04phU9Ykh3Vo3fX8sIWIoAUvkeM3MvRjDz8nX7rIQWpfEtsATf69Dk78V5ZeYRqUAlpMovWtwTtYabM7kJMM_MxuVDGVCmCT9gpQflF8JRcMs8yLWVzGyA.c2IqlzNQHFi2tsCbXpA1svCeV7WCyLVIY8uaBGEW04tjKeAxc3zlhX_yDBfCMx.EA8yQtPxLs.iyTaKqAl.Ldfjec7OELsUWDvqtp4oGsqV5gZ1H2VQxwIBQMElLSVwkZoqOMCD_zVzbvI0ZHzHplcsblV1vyTgMDB.hvxaahZrAgaurEedAeTBbsQAB.liCvsF3GngpxLe6K4VxQtGKVHPdDxB6FxnPvLYhqSrLy4smXonnlpqzbUtBzTn2OVAc2dWVcGE.JYO32VZNBp1S_.QuE4VPGjKIjkQxYA_Vpvf3O7XLKTj23UaL59e9dlvdSZjMdesSn8Aywx1.d.NfhXDWPN11ZfvjJuR6W6wYmQl_jA7zIg7bYOGZTLgDBqzjyHXSfp6PNBeYZt_eWYpq2JaX7qhEzqbJQ.5J6RGQ8_NDSfpz8Z9lWk8m1MbZsTBWkf1s0IiCPj0afiOitzBtoFOj5ywcSzuRT5eqoh.TcJNqceqp4l3.G4echxnwexs3X.y4LpmlDnzBtPZCeGXRobr7ulvjig3Hpx67PD0R3H6zjQfISogAWh1fo4JJndRBsuxBHrsFPoMf1ihJyy9mj5mw61EZn5iXkPLk2iPG5TOnSYyJ5zng6dyDqC1znGDeByHoOXM6aRaWmrOaq31nmHxQSVid1wEuWeocv9_QE1ZeURVAH4qpuncj3LBggMwNCvcsJY8B1OCaamPD3D20V2SY5RpW6ojrSGZQCflyrOL.q3pjgIwNZtBuy26FKpZJZ5wwVHJMJ8Cnl.q3e6Uq9vQgf9_fhV4nB54sRcIbFBcBspvuBfFS4Z6n9hK7871zY9HZAF9wf5WQZslFHX3Xc2lrSxrkY0X50l3EIN3A01tu.aG42EFFkIzNcEXgJkFDb8StKxYcQv5wH4dJOafLAVK41MAvbBKOeP6eJNqeqpXbIXpzZ4pXRBBWFcb20F2_0By6r93jNGl8pRP4scYS_6vpTezlXL9k2ExI5DM2afD3ecDuY6KxLg6Sd9Gs64Wk9o2TWykG4UENxWDOpDg6b1NWAGCFe1PFzLcnNrlwuY.G7JIozdKPbSWUnbEl9fuVHIapdlgxSNnEm269XuiVFMdywzqAsrb1Q2J_Kik9FRVJbBI4oHQR_PylTb_M15rbj6JNQMWMWPFs5wIkOHC0vn2N4yxmJhDyONpAjNeyDCzuS3RrV4e4UzCjLN2l780rPmG7y44NDAbSz64JIWPIRvLi2OAeYYTwz6NwCQHwcX95QHc2QqsR3LGv0jqbf1C9d6e0D3hN8._d2NzDJmeisUSd2mKRwWxj5gfOzyFmw3lzYjLBjBRQWcsZY3AI5XLUGj3U0xaT2eAdTyqI.1TXRKLZqGyBkl60CekiQwFYdGvV67p3Bh_V075A0Uqpuf1RS_x5v08R3ZRyqEOot5gmY98qOl4erV.Mc_KqG7CVlq_JNC7AT5ya7Oc8vcsvqQW_5OnLlpD_G7A.MoKiZMd1DmHF12d2O8I1QkNm74y5WS0L1n_tlRk0TefynW4lGQ2fw8RRUQF6wuXitmwO9eP3u4ARGfcJt8cuBDgKIQzWHV6WmsP1oQL4vrpb",mdrd: "vPGVYLUQS9fXsTwuXF3VdeZ3sVB0iw.CNKbuX561JaM-1739393048-1.2.1.1-vhDlRJqoUI3PKnGmNDECQKiscRCWqBkudZ3PUTmixmBWYPX7AEL7D_n_XzPsqCJ0ilq8BMFt_7LXLA_MIL_8dbCitCxj8yC0aGfRJJtfwy999x9ksY4zxwNx4iBgpAgrfqHyHpz4ls9_4uovHzZ1aSZAIvw_ogEcqPIKV2NBUfXKnaF_0DXmIz0FaQeB.lRMSndQWBeXXRuuriiPPrAJiv6SUSpLFAQ45w8oaQ6BD4sqNLu_WBmPJyLP.O0VVvrb1b.stEnj3a0JCG8DRjxwEo9DbLFmBuXA9es6tUQPOLv26uTZ2belPQz2z6OsDQU5jOmlr916Rz98Kc6z.GYIdh9BK2pcPoMHHfNoHv6pkLfUoNs9s_xFD22cDSr3kDUOWzb0nDXDONA4PHpQ7Vk4rHsGERO50rzrB1YR5hrH3FI7.2FfwzQnaWuIeI0G14gM3W7lJffG7IOnU9KfN_ptcW08gFiUr1WrOHJKWnrD4pwVGYsExgYUd2hQUC6GaHV9KoZudI4384vJXCIXvTnmJcalJQYOZj9YHZ4JQExRyJGFSn5LbgOpLWwabmfvRTRLufODBTtIrwVUDbncKF0ONOF3ruGG_JJ4KQ_LeSmZKpY4nkX2HT97BqwrhrIwlfKo_jQPvioP39nk8BXcv2Uo1uHq.TGOSVTP.t_ACkBWiE8EuVNLwXCkX14jTwmYpL58UQeNrTILR0oFfIhAz3XSY7ovIESf.jpja9bAWyShYsFQqlZvfxTmZ6xDaIKms_wXU5S5RGSADm3K3zNE2S5mh55hZhbAFOwhqQLFFQiU3skvJN5X4e3RyLH9uvqAyay7_36HTMWLIBH6CaQzpDYNMJ4RpVni1cO0a8nngvdhqA37G2Sp9ngyk235L11Rs5pU3_focZ.gOjLfcnOorMJgJiFJI_lFp67RzeH.cavK1_vWAR9iSL8HHbMOCsDMdYmITb73KE0PLAcvFWJjnqSyxmc3zwrL8y1bzsgTYkZIPW9hDgklufLETIwyE7lo47XCUW3tK_ASN57kGXyJzeZ5kS2GoSDed5mx7xPjeVEPFM7ZQJTKqRe8UBOJWlkycebwBMYMW_iGHDTxOy0QoGczf74rkwA9RB.Ez4d6ugpnpQm.e4Avtu4S4D2SnQLLhwxM28SjCxgd1dOuNVPJJgAnuHRnJWDFSxWjpqp7dTEpw6bhwDShq26NHcFLN4MVo9ZjQ7R3TvSdvr8B3A1JpYaq9InPv7oaNKGiAAul2OD23vtwHi0g12izuAY1c0vDOOudJKyHmL5ANTQ3S3lb2A6RMGrkWinNMk9mULoLTfH6KKQUzvXVU2Fz2uZ3EGPRVKWhluYRsspDyJX3HrdPZ9ad2.XeEul8yknXSfmaniK3QyMm8roTIirH4lkPGhGEossDQKldgy9yvfgqT9ZfTffyo0_M2KL2bTpYMk_HuFXVUX_SrSWsCPFztsrmkHWdgYCLWmjNQ_6jQ1yud8q9uemE18tGJEFB7_cXflRxu8cMVA66jRbjHxMN8tEgLs41KM2fdloHFa9rhcoam8W3eSpY0mVb60u30jt1LB5jfz_oUOlowzx9C7Wsbmke.OImMLdfCVON5fv_TyZJPF6870LvcOKkDJdZNSZ2Dy__IjHaCAkNNh5kkOzkN7KGpaiXVxzFgq0PxIAfdfRgQ80a5L0ZUSUM7VQmebWg6JkqU_7Wg7CC_v95yCOZhpZYGXz3TC4W8h3w3.CoLKOmXoDTriMhyRNHqSG4VfGDbMY1OL2lLtJVbA3Jv5vkcS3bVSvqmca1NZXcDVd3J5zU5BXqu7ueKg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910f6a3aac3ad7d5';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\/5763908124?__cf_chl_rt_tk=4PonEhnGSYPJRH09HB9B_5fsGEOh3zjs8ixJdor5kSU-1739393048-1.0.1.1-MRPyc6KByajD1XLK2_5EdgbTFUqHgoGDnXR7uWSZAp8" + 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