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-affm80th3.mit-edu.top/post/7963052418

  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-affm80th3.mit-edu.top",cType: 'managed',cRay: '90facfe7ace90585',cH: 'r2Ea4Vo8sbXq5mG0s2IBjvDWfu4RWNUn6XUog7I5wx4-1739177012-1.2.1.1-QY6408t4Iw73EvrUCVb2w8M3TlZoT6ZWOhLcIUu3LWT43tl3Bbk0IItiA3.UwjSK',cUPMDTk: "\/post\/7963052418?__cf_chl_tk=Fa2g9.EYJAs6ZTMEUcO3kl59OkHgQryNnXwusTWVtk8-1739177012-1.0.1.1-hV5KQY1nBxKa37Y894ujxfnVIo.50k2UD61H_4bfDO4",cFPWv: 'g',cITimeS: '1739177012',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7963052418?__cf_chl_f_tk=Fa2g9.EYJAs6ZTMEUcO3kl59OkHgQryNnXwusTWVtk8-1739177012-1.0.1.1-hV5KQY1nBxKa37Y894ujxfnVIo.50k2UD61H_4bfDO4",md: "McYejb8co1a9NDBMCsz_EUo.3DPxOAfJYxoUJZHtxKs-1739177012-1.2.1.1-11lozNCbY7mCRJIy5d5g.lzUuDSgFyYzpppEFDarEJ_7.4263z1VULRFcpoHQKnnzjSSk3BcbocSAS9NXqwJVhmmJHFEE02qw16pyj_lvNy04zNkcDC1gwsLALf.Lj9IlBngCxWBXg7d3T5l3_i3xbfhE4KdjgeLXbJlSW40O0RFn3gIT.Eu3Vrf4dvJ4iYLrhq7CXrIAns8MI55ggdXcLkf5Iqtpzy8.x6YVOCXmGkFMwbCx_WOAYDrrcESbFxLqPxb6Gl1FFSjLbnXPwNh0ohfI60mPhu0_OmyRwyI3707FvXeKNfbPJkP1sLt52g91SRxQgQcV1J9vCOTr7vz0eohhu8rzNyeYaMhCOiogr5EsI3kVSeadvCPdhHEx6XYFxmWQf_6Miq7KPheSlE1cax1yEB9SHW05u_XF03ucdIhlOHOnVDlKptMAHocr_jdXde_qNnUky399JZ1lyR72egBbDUizmHcfTV9L1_ssYBbT6ryviEsJAhWOCjhXYsObvnCeDX6BpxXj2QqSpysW7ENr73eGO59Tcc8jt44W_30drOgWgGlJobyXBoYe0_GIWZlrgv8cKdiUNcuJQMEHfV9HNWClHHic9rptK8aUKYUy8yrG5d8K..t8vNF1o5FGnu.87bf7pu7M3soP09ZuWWgpjsMdDsqzmxItK6xyzTZqap5Dg8rNnsgYB72QuREyroTBD5LhvHkgqjld6DjKf5YMa3gqoSsmMRUrYhCw9iRRLHOKygm0jw.CUuTwLLImHePkezwtaI10LSXNe3XjUuVlUjUgjwIzd7ypc5Dt0ZB6luZhWEcRDRkec6lfLW_rrn2zjT0_vuxQfaHstUuDj1Hq58y7aVHvuxzDtIW0G1KxdF91ToIcvpj5CidbShMczaI9sA8p8NhMqmzoEzzUDMI9V8Z9kBTDUmJZEtufs8r5.rX7yQCkR7Mrj_fFzpK_G8.mIT.MX7.vOaXnZIJmogb0D.PvTuIuaCX9Fvy.Lt4od9wWqx.jQLseDKTePnIXJWHefMje9Jn4vGMjm7TV6RkDwHjDRzqRyJXC5N7KRPryQx7UySAxI.xg3dpL.MNpW_9aad3ktQ.coW0QAf2OhiZgof9qJdN_axj2ECXkd5yUdhO3g2lC1hBbMW.TMJgN4ISSktfHIAui4Vbu0ajWB.UliUXvDDfyn3pkRUKdIlWv4E8Zl4cfdPjIA18SOXzGRS1Cd7JJuCZ_BzHmeo0UoB6g.qGuC7PA.GjTCHTM_UwjBQVnXVTpUILLvvBKEj8ojHp4P9pSicjt7NenNYiyMbc3e7f.KILT.qVdnHSbynR2eo3mVVB.JXAJGXr2sh0LFCuk4c3OJsaoZZg9e4pMw7i.w4MeJVh59qfrnGAS4iWGS4xAiAagpgQC_628cjcW1oUP0I_IqEsCv3Q1uWvlS663pmolBqI.mNg5nTk1WrldUdS9gTX2XEliWDoiRC34OUMceQlrh8Klyef3WYc7rZ5xSQoe4lLRj1wJ0M8vFNaJTv7oUf4BglEzJVwBTCyIoLS4hCU53FcL5DPW.VTqi1cIl4ky5MkSM7exW.rrLmq1o23y1332vmZD9c_F9QR0T9ESliiUDiLk2B7Ezv6hRnLFbjqL1zVsAe.V3YSCoHgqZ27L8Hc6c6tc3JH7b6pk2hbATmLIny2g6bf_oZa76pLqKlEQhSMfwdeQSfzck5K2_RUKyeHcib86NcC_HWOGeB0CIm4Gn40_zYmKe1LzXm.zEkDyOr8uAJ1DVt2zXSluii9Q5A1D.TxX.pU_jNe_91SLfgiOEavGmJ1Aq4u7ds4U2DdcjWMFzv0UozFa_iyZ5_PtSzGSr3FXVuwDvCZ9dEheigNj6LweIJt6B9KlvYNCyvK4Hy9v4uG5BdDP7DlhjOSqig7Z8jfsjZA6g2RAO4JuODWWHFJXg8_CKFDVH3KYDYEStbI.W63LVacQEsndVTYttpjdBlRXAQ7mBHZXwI2JtfjWZbYSFdKonbKy.EywdflPj98BazbSY6NiAwy1Sr96uNDMNQqK_8Erjvfh2NtzZkyY7gh8PdoPAC771KbEGa9SoRuNbPc7TYHf_oMKxoKZyNsYceG0kvVQJAnNOSXlTlh.RFPdXMfrQM2toGeZjw.iqhmG9ITLjY6AvW.SYxeoeeaWZiDUArcrExzZI4aDlylov5RsLnmk15y6yFtgbhZVhI43_bAkVcY3mnqKmxZe86pOBXcUHXm6U73",mdrd: "U_S8BJ6dlw.KZcCj9ol4ePMqwkQa5to8eVcyO67D3HE-1739177012-1.2.1.1-rujMcFBsnQ95CKCBd3LCAsNvVkLlYz_.6WMJy5U6H__B0QMzO5qdEetK.7nQ64FMu7yzrgsgUUZLt7SzFeEZsZPbaGbmgx6Nioqyfv56AgWBKECJaPJo5a2DuRPgYK86zSkeMi2Uw0P7.UYpJs4Y4GthkzogOlwd4y5aK.7ONpxh1JBVX28eHufCoYBlJgEHql8yFU1rZ7K55yLeV2h80C3VoY1Nbkwr8MJDpXJaAkI.lSqEVDW562817JfcfMlKgZCqA57fVSdsUDlyiDDGV5u.a3gg1z8OMdGCH_YEdOMG_0elaNhJtzajYtOfdkaVJ7RIpnsk2gVByu6y0nRtnmbxRx9r.94WWynnPHxQxLIWtkKqigRupGAr2gtcZIt37cJMJUZWyoQnpCO6mQRoaQCYti0PJ65SZEORoJ3PbAcNsYVBGeDg.AZF1hphNrSBaHyaA.AucuUWsiH11jZwlu2Pwb8dxLAK4DaxJelg0Dmyq9mHxxBxxnI3Rh52H9BD9sw1Hz8toU26mkveM_QwPEDR31u3736TC1ztm_oqHlG7m5QuDaPmo3WhFF5QoiguqMYH81bpAeBIkLOjuMz.9oM7PIwaoMOwjEQ03BFF8FrmbK0W8W0DjSBD3GY5lhLPc1dbH5lktRdFpyf6ho9F2Gu.JHZeN5SyXFngqPVf1_A7bT5RJ.BMg5XHa1SwazolCDgOph2SQBzhe86kviyXPE3slFvqNRvMElhEwSwuAbxmiWNaBqVQhLkltdmxuc6KIg9OHgBXTFP0fWKvFtZwr3yOa9iJ3JIT3_fVdmKoJd2xXhIhXaZPVNJBFDTdC.8PzmZfWEz7dBY6J1Hrj5JVjVgLMY7k6H4vzw1F4Gu59i_i1ZNrklKcjniJItlEXAp3xaHhn5Y6XLQw5T38stDhhpn0X_lXfapJprUvCgyl7m_VbXeds29vqBaK.4OZklw0_067cMu1xvEu9.3msSjiVaqUiFEgGj5GeJnCPhA646AgJcYr03YdHl5mzBPpTOwnfink2H.VD.aTs6jsZv72dYCvd5BgLNBRuyiPM209JUQyQmEr_mbPnUAZxnKFBV_zIgRXh3Ib4NRvJEB3T50fU7OD8mxI7oK2zw687p7D9HEyGmUwly0KbHxPQe9zIW7br8lswC6CtLWYWo6l9UQwmEYNZbC0tPwiK.JscrT8tMU84mPscW5zh8K5qfD7m4HfKQpEu_vERxQIyL9dIXLkCcsFQhPepmI24NfDRvNhlUqW2qVL6AF4yGGY1M3mYgIf2fAc3Z6HhI8ZU.oYHEK6aAxLa9Gkv8ljI3fmGictY1WXxsryuJuqHmpa4DPDSGu462qihH6mJYm0DlXPIh5cEDYfdE1wcfYM2IcT0BXN2pDLzM9.LXx9RX76dC2Ny_D1WlsutoXcokuGzp46BQnxFqVex2tqRPy1iLY16WcNXT6ag8KIJ9VEOi5Ww76S6hldPJwhq3Cs0XTHOsF3n2a.4QLGYnw40tbgX5O9J6Mrbpju5sa4wT1LRWP.W5nI6R7h0Rh6lzR8GnLSanGkVRTdgz5wSgz59rFP_O2J_RHp5pzGok6koh59J2O_vXkpBkmcOg4v2jYwJ2vtTfV06DLhXCOwRi2j_GQp2kZ.jYy_Kjh6LZUk3vwtEjVr.qqj9ZKj5pgRv_I3v3THN.bGSRrRUZ6c6ZzfCYOmskd7qcxedZgMTUXgV0amCKhS.zFax_CPoY7PQJTZpIc3EsfI1Oem5u6CNYMQ2q0G1mYT4.s3RfmJQLSmX67.zgEiFgQys55e0nOk9pyyPqqtVZOGa65Fz7_QzGXPSPnTtjVh3sEPxvA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90facfe7ace90585';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\/7963052418?__cf_chl_rt_tk=Fa2g9.EYJAs6ZTMEUcO3kl59OkHgQryNnXwusTWVtk8-1739177012-1.0.1.1-hV5KQY1nBxKa37Y894ujxfnVIo.50k2UD61H_4bfDO4" + 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