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-281097792561.mit-edu.top/post/5142978063

  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-281097792561.mit-edu.top",cType: 'managed',cRay: '90f3582ee8ce8791',cH: 'Pm4wMK0URm.ki1lsB6PSgi27H3zfFFpcR_GxYDw6ySc-1739098708-1.2.1.1-PayNPGkQH7AzYeSA1LgDQe.WhO2VzO0Q_b202aEz2FB1TdzFr1V8bTj9vKPdsQm2',cUPMDTk: "\/post\/5142978063?__cf_chl_tk=A0h3k5tM6Mwpl8hSERuvwyX_nTkfg8i0EkJiPMMQIns-1739098708-1.0.1.1-zaJlbktsbx0xkY8I0zxWe.z5T7j2YW1hNgXKo63ms3c",cFPWv: 'g',cITimeS: '1739098708',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5142978063?__cf_chl_f_tk=A0h3k5tM6Mwpl8hSERuvwyX_nTkfg8i0EkJiPMMQIns-1739098708-1.0.1.1-zaJlbktsbx0xkY8I0zxWe.z5T7j2YW1hNgXKo63ms3c",md: "2c96M3oYfwS2eHTV51E.TGfnNPn1GQNsh6UQlcW1C6U-1739098708-1.2.1.1-4tfCCO.zPmw.gQeZW3ja1uFSw2lTmPS4JOkBvqL0HNCAJc0gdBiwykZ3NxV.bf2UO_9d0rO5AhE1Hh7OXj7Vr8q0ZTgOnBTTtjPhowQgMbL96HnZivuATgUf9NkHe9u9Tg0._9uezFyY1OaYu0kQ5m7ThZ3Z.qPresZuX4ZH6wFmb4hmM5tQrteX_ZKtga1K8d6YwlQqu7yRlQtRJFTpa.YjwNkR8MXf6gnBoJFr3QcOYI8OYpaGyhFYMMzOXMA3kGz5LWaiCKtGoXPDSGsAQnQw_H6RiC1JhIdJq4dDCZayEqu945VE4Tw5ndTe71gfgJ5Aj7Y.96tpPPQsmkVvlPJDdzQ96VdmHsX.b8i7SnAx0pEBFz_jP9gWoXE7On4AUsJLEBYTcAxSxGk6CDG264bswFytlxPrurs.X9vmpw3irmqYHG9_KkTTRoiRNcYu5nXKtbgk6uONmWxQRUyCLZa7YYjzGyoe12ee1STUdCDkHqaO3SlLziGvolJeUzm_aJPU3YsxCI15SXQrIS5KhpJmGKBHUflduHdXgIuV_xiJzoO3e.FPsTTJ1lIJoSzWlkBUV2fZ45wO1gbYbh99QXH4ySrXuw3SgqHSh2F9vKrPt33R4ql5M63TlEEJBYXKrfy8QlVVxA3Fd_1H6bz2jl3eTh5tfqnTey_yTqzg5JHJoaXdg1k6rHHynLSbUZSJBBg4lDIM9VvSNdMoZY8Hu7X_Ra9uLhLPmdwm2aSsOAd0Tsz3yrI9laWXjBmwyime9cR6ZI5b0uD__JAu9KGNexl5HA5ZVFMFjiuzHmB.rxMLr7vTEW6R_qQG41JdpL0wvi4.UJeP8eLAK4jhOb4rDlrtEro_BxhdcX4OnE5W0N8kC7djRQ9CSLJlRkFhUSTLgAjIBypvUBHo8f8kqXNa7Y0oBCtyCVbWIRBDDdOE03pjIuPGMnPWm8IgYlhvpgv.WeueiF2eF0XK.S.OKpXDh3c7z3_8yDcfD544YCKlwW4uoOn_uDlElgH7cnTO8iXtOQHlN7VcPFSoHw9XC6Yp9HfXWQp0PnOf3y_AOqQAXI9Cbzw0xdVITjntTNrwbS9lNpeJcg_33d345yrEI5h.lVy4LOB.jru0_WnSgWcitCT.ZP2NPUGuEGp9Fw8y9hLF6jdVo.7gNqWcWWFkjLCWjlEfKngX8mYotaAu.ixBUkjnF0Q0dfeGEDFpwsmY_s3jC2rIMccQHyt86mbRZLTQkkt8u6GrDUcEKT5dqvRNJzqhM5uV27sqH5fBLysGAGbwcmrgVUlI.s2is5wlhsFcfl5Mx8G_uOprqYVF11se_BaU2n0aGDC5U9J9zQsg8bnnplzcCgQhdiOnJ4end1NV48yIYoP0fScHWYJFSyPhZgh6A1LXlYgZZ_Qgal3SqLw2KpXWi4nGbZbbLJHcXmJNSi8.g56Gbs5VWbyuMpRw6Aq.WKjn8.7lFY73Rg.82948.nODbN090baQNm.bNk_bSFefeI_UgjW6WW8fWu62SgC8Kjqt84pu0moEFDu2zFO.XZGof_M2rj_jgKnG4vGQtKs5p6RdNz27l9BGZjKDISsSETg.lsU01JrP3alajeKRnTTUvrBw9uF6nH_qo8HA5fPYd_cIJu8pdgsFxjoxNzQq8ZyJJDu5ILXk3i2NgfeWfqpLGc90EXcUvIsio9gQQyLykVn1CK3_MpON0cgAw5IIE68Se.ZoEQTwe6dL.Ypp1J2SaK_1XkRha9UodilW9ra5GnRHGEuBcVMrMWAWdF.0k86JbOQnEckG6qNtDWw0BpQGBASSX5EWTEa9oUjlMNLQ3sMstgai.J2ft7U9wZnjaFuDRH_oiuf0z0srTQ6hTBS.t9cLtG5OnHKHI0lWv9OCHFD702zbsLAzDnMky6.75sdIGypNLmIT9NJsLq5K_zbbBLLLbm7tj9sVyaUFddpvBJCGuzPBZy6RP_.4l_4ps5Dmv69sGwfjGlSbN7H6kD9TT7_oFgC_BTacHOLup47Sv7f18GuRUD6honIsEDl669u4PKY5onkIJ28ljWWff.cQk4TfcsiOliHK7aej8OcuwohZQPOZyutW65rWXziYoM.Ba95qu8C9hfH5NqU11vZrVG3NgRWVMWtsmnqbDDs9jj96m0vKwOSjhdTjRH6CNrVkT0pYwDVGQFcH.AwpyjUBjPwnRJU8.pnT_51T1PrLLWSlTdHgKbjW8V5PgKbl1XYVy5ZBVylHTg0P2ctn",mdrd: "pzaCM.xPRigzsP5B7CgRyIeIDXe1UXRjV3x.Vkg.Lio-1739098708-1.2.1.1-7Ac0k.qLDyDFFlbCbp82vWz.p9QBFkBF8aXgO30tPuHD7w9VI7_CsNri5kTLjIQKPjg6_5mh93x.890Pf2ZKDpBHsERKKSuigwynt7SCcvtKVtYHYeNv4tsAcqlPlQGt4nFO9NdgqmM4ebexrXy_fL5H99hi0agZJHnJ4dg.5YyFr9jgUbgsRcQn84FmrL0D1.vkK_uCIA.6FX5RD0aXIpGdZEtA3CFQa0C03Tk8AeXBpk67ylJWwGvM8Cl3cx5XhHdtNlSUlRYnn_zccRUCNoAUa_eY2tt32QPWVOGp8_A5V1vMLYSJxmUdsU75YGYkAym0S3dTSt2bFbMiOP2VObCwjZVhv69YHdItmkAFpTC.miHjQqV6u22SJ3HIklOcZx6c5xz1NEVB25A6HGcWl33QzyUfS4vTvaFxll_KxdLiLVp05T1txEwaaQB4ROCBuaySc9vtPsLa4P55V3JUzfEX_FlAZMyAYuPRBkWdJNV9HtXvtGw9.VLu4oCy8haIwLAbAuvb3CY1mT2KFWH1496Q2rDX63Re7zEAedYcDvv37zUDFYPYAVmrsYq9eVEGbkjg3rmQvKCuWzsVKhGC4mffdy8oCg9BR1XeHaYHvLUBmgwMBmigYXQigvofIFPd6NKYbHsZcMLjA6v23fuq0EtpAmkM0Rcxenf4sT_VrApzQbmm97XYsleRrxQdsyrAoP3FI1ZC2YaOuzvyetwaFkLA4tderXFy01WPMZDZx.qZeFMe7aZ76ejToG7vnLtxU9KnDQCQNIKDivqXVq4vo6gVzSyAfccJU429gLsCrrbuaY8SStzD_uNNZDr_32MLDd2GNCVlOmdtKNUQiViLPPrv4oo9H9_llMVJEvTIgRzGE1WQtWKhNnhLIMBUErv8iGN3h2ddPcwVrWc18dwjh90yo0OJVgwYn2ZxJq2gyMRwIpmtYo06Lt6pli.B4Q2I0iw9RijpNjDtv_1xypTSFnxTUvsn2ETCqGucI3_E7rzonvb6a5KKBC03ZXBojroqOqHuwWJqykmdLSY11CUwVx5YbbG42kujGVq_tqauukJCuBbstxIzBjMGCSbWL_CRf9mifmWhQ4bwh3Rl5QvsPBg2EGAUGk3PZPXlgelu46s6_W17.5mwZwh4UeQrqNQh1iJNgeMiwe6CVtZgRvFcfYYHnlV18ecY51EfLxINPl177Bgk623RIl7XnsEu5JIqMxJIGUZrGx5jX8xt_za1K.gxTdZhDqsfrRa1fuvsE1_FwSH1uie6BVMyXrHr9PTq.hAurd4g_60fDWS_zZzX_1oSp19xg7qPlwQe24InwuvY1.ZX2SnvoJcEEOvqVnJPvFWTWEldnKeTTFMeD5LZqgR8WlTPaecX4Kv_1a_JhUzhW8bJXoAPNs3TrLSpduuwK3XFGINsyOx.rCPZDyhIfEhtZRUKiGdsvtF8UjryJC462DbtBdCPOj7LYHEmcL23MWw5yPhBOeP7w1W0BYNDc3Mw.uG6S_VIXZHE.jb_MA.oH.zvWHzxWJVkMJ9raE_VX88rTzPlrAfVeoR_TwhlaY.BCu9Ihhp4vZZqvX.TSXv63KOIR6_teHbBauWvvBuuLXaJRXKVlrOzgjUqw5ldWTuF0nNv8OgClY8O8ueaZkJuB42CkfTSM1tJSvW5o0uRBI8_wgwDMZRLZwb4Jjevy41n9r6P3Gt3VJTSSXpHB4Q23c4c7LO2QOcq9saE.Yk2k49FEXFoKW9wBpLNTvqJEmN3km0jxCk95KE06HpoGyln.zPjDXhcDk2URTyB1e7AA97EoQ8vSMqOQ2Dw8k4lCCHSyn0F8EvnUETcPnyKyi4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3582ee8ce8791';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\/5142978063?__cf_chl_rt_tk=A0h3k5tM6Mwpl8hSERuvwyX_nTkfg8i0EkJiPMMQIns-1739098708-1.0.1.1-zaJlbktsbx0xkY8I0zxWe.z5T7j2YW1hNgXKo63ms3c" + 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