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-aff2jlth0.mit-edu.top/post/5079824136

  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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-aff2jlth0.mit-edu.top",cType: 'managed',cRay: '90f7b6cf3953c988',cH: 'xwQ0A9n2wVhIapLbyELu7stwIZ7xmhwalKcX2z5xpIw-1739144527-1.2.1.1-WCV0FlwWu071fxBFnDvo5EbOxYArUTR_sRpAl9fZWpO.w3YPWjISjG4hvyxWe0vz',cUPMDTk: "\/post\/5079824136?__cf_chl_tk=U4HJMmFOvhzhuhdQOO11yruVD6A3d78fj3cDcD.TofU-1739144527-1.0.1.1-k5spRyHRsQ9glF3ee5kK2P3LVNb6Q4Fpm4ArH2epCns",cFPWv: 'g',cITimeS: '1739144527',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5079824136?__cf_chl_f_tk=U4HJMmFOvhzhuhdQOO11yruVD6A3d78fj3cDcD.TofU-1739144527-1.0.1.1-k5spRyHRsQ9glF3ee5kK2P3LVNb6Q4Fpm4ArH2epCns",md: "rV05O65lYUWYqU4V_pvZk20sWWDTlgG3PDE6vJ6Oun4-1739144527-1.2.1.1-4OxHhA0gwS5kZL3MPhFJacjqEQyxp.VIuKghALh6VEQMGvqtiVAvJFa93En3x9fjAD3smwR1sKvK8ZtrpBmMn4aLDiFR9QjZpASAeZ7BOFenqOJKG7kI2nUugHb1HIPbbY.Nsm7iYMMEDrcHMQyBkA8B6uwLW4Al8VVvAgpj7t5S20NvGivJjykM6UtO3sA259wzQZI.Y5.r2pEnCFttm_kRR6XmPzptfvWGltimCqjoB5mjRgXXYM6SR_pnCx_5y0IDHxJB_lyJFY6pwVAxQuxXC_fFVPnIcUgXEXRzKkphCKy1XLtF3TojUw.A26qsE7HVVs52NryTrWRBD2ceniEByVQ4m_N3_bjE.Tz.kbUVWEyt7Qk38DLgZP3cY.sKBmwTW4_BAcif_aPwy1XgEoliTLtsP5V58z4G_GXqRyuMmnb6578QXancqyrnYGpd1L8IcjGKujquDFAdQj4hV4xdJdagHDNOQc6tK2jZfpdCtl.dIGHu0qqdG6nmXfpMODd1wqSbh.MpLS5nya8ae.tGPm2WuQqa1P9AyikR9KpRpA5vFnvcXbq7eXcO0h94ZcAl6merzClZvIQe6dBoG1AT9emCmm1OgkgZl1ku8KqbCvDEyUhnl350BS7frR4eiQCSv9yLoiTEygtQdDcUKX2vi3y3DaS5Cl1D2Trcfr.ea2xYNO8hV2e2jFGsQJgM3mEqs9rIJ03XoW21ac19gHUwwOsp2vabbQPP_bbdY987yHVH56y3yiLJ7O5L4TbNXvu8gSM__OdH_xvAcZYgssHduUOA_TpoExCQx8BIMAMPUmX7B.bvhD21UkUztLKfxKSYc.KCR1y.nJBrELFwi6bmXckUzhFWL9IPQ6UZ9IP2EhkLyLgiKJm685TBfcPdNUoxkZAhIqa5J1Y0F2Y889htlHXx.uV0r3d82z8LvjrNBzE3tLv52AbVQpTxSCIOy9QWZcU2DXEM.zHZFSR4e5RRkLQy13XsiSQJ1vRn3bR1f6omXIwyw6jTvWhdGOeJO3Hx1nNrp24Vxy_bSVEcy4ncUF5xEXs6uSxsih8XuY0gkK9cxHtnuoXq8FW..XutsgGrF0kl4Trp6GSJicHo2QP80.xl_bJrqy2csCZ3lGr0BfBZCoupGJDW_W5Z.b5J4rFEwBXZnOE.tzgomtbYPVRKPHF_2iXyfTVdTcFbq9sd._raSjljO207O872ffLrZAR8w632zX2KQJarDJ92LfzRv5xFzzNjGWS9cbDBuFeXJkHSONo2WHj2ELkQaMnqjez01cfHkzriA_jW9JcamEtztIypxjepwQuNBLxNxnLeLVIXjMAXqnGAR9D8W3XCuPgJdz7QmOZmly6olGn75qbbjsRAJFbU2wHD6FjRG6Vr0uosITPUd6wdhVySRVFQ8gi76xwrnmc1pr9PPOqSg1cKpdRX5exXbgzDgDSZEnaiGHZVcHrOrpUFw6jZ39bqMDgOM.swGo.L6i.kJ7q0m0dSpKcuuPavZstdO8KONPADh6BAllrSOgbuwuQu.Pfk9DAyRxstY5SY20Vjt9btqlE_MlnStGRoMntZlFwjgv49nCYH.pE2NVE9MZMWacPE2sX8gly6DK8hJFcyecAZcfadMJDK0gUGuDm9rQI2rly_Ygvrt2nCc6tLKzRX_qSqJVU33u.iMTiAlKfZRP8jh4_GN.Se2mvbSpu1muzCCSfKmXn4mu6_UgaeO6z2rd9EucLrNeLnuM8C9tOVyX.A_wmVhINRPlEEznl3.vB7a4dBpd6vOKrOp8s58gw98EUhxyqupRtYF7y8x0gt9iFBTQNJ3p_YjYJ4Q0UK5RwNYC7RliyVn.FeHopVbIgh8ueV9PKBAMQUOxfSuqePxfSg8FXqc8vI3OB2EWZdTU81HJBdiKtSVt1BlVYloIivyb44T8Kt7l8aGBT9HryE1msIzNWIw6FZ7T4eWS_fxISRpyin05Bg6yiaCm4ZaSW1bI6b3lic1hGrbqdWhv4y_Ukm7a0Hdiqa7Z3yajjvZPKZIONFBQrE24xfD_jn5U3jT6Qg_a_vtj7dze4cAWNZTQi8AJsV74ENUBEmlolN5ecsBKO2lNZ3znQ0M0aqEXBLwDXrp7brmZIVIxBbYmg6SeqY_lfWNtqMPX8XpM9POpF.SUO_stm0JNOnZqv5tJjuzQPwzqAeXOC5Mw9U570._U7f8O6O9UzjvjebxPlQlTtVZkuulSAy_bHTHCMrddlURJE0",mdrd: "TgEval3uAxONDfI9O3zPCmYwJ5m.jFLlwMDuUvGbzEY-1739144527-1.2.1.1-wlrwYbjnBLS2iztA2iC86IGdLDf.paLmebjWQz8.RCHePFyfu9deU8ieWcIZpvD7exf_1W7oV8JzcauKhKkFhh6qXT3lswgRu0rylayj.VnW6GURL4Edd0E2pmDjGpc7H49pPGCBdYvNLcHsyPbUp8o0D56wpQPlGQSsnXQnbpZcvwD9pt3q1vq2CNOodm5RU13aNp9.AUOjhY2I2NUWwbmy33sZaFVhGVTp6NjqnD4Dfou8MRP.85VeHdFep2Re15VJc4RssCiHQHHumQS3oyBoTWYzLWwa5H4VTxugMkYQdm0jeSAOZwzRHhZqlBIo4t72GNjKjGCcde1vDIdIR2RrXIbzOvyI3KSsJseEM6P3LImP8sVmtj7SDPyi4kfN3wW0lZ1ILbJawM5S4NrAOT2KhoeVawexSV6ovFIZp4GM93MMSwBNDWrQu7y7MsXQ7Qzaz7VCB3akPx971iXWwBs5XCwtmeueBOzhS1vfwGBXIobBy2AJUQILSuw0qld95JL.XVexqdpZxAm6YoGDBwJmTUd.i9fXC9cW7lkMiARJK9eihyNAsxTVHTYUsv5s_PNw.2AQdkUq_ZVkp_6i.gdsCcXTfDUPafPE5d6V9avR8FUctWF9gQAfAR8wC1Poom18mGnW0w3uKGdnXz5o9dDv44e88BVbNJqIHtIPosiHjwuav7m_FjE2GFmpyt0HBqrfVnamekNMbqf7H9sbMdrQQurR.xW4ZCd3w9ijHZvS6jWLqlitwX8lNvdRhZKRSI3yxkigDFojB.FyHNGlNm8Xkh9T7diOG82VObEFekNRvjzWk.GjOZCdWQOyIMcNeShtrHtCjmCpzvK_yQ3T8BHm5gIoy3Dv6LGjI_5WXiFfqgvDIq2.FUgnLKBtT5lqC5RKEklhn2AWIFpcm5tM9BUZWwUzId3LNU2b9byDRZxmGFNiBTNs0FTjgjdNtBPl5F4nkJ9SpQRg0.6hEquvt.zCJqKcg8ZgvuJWSo4pP3VrDS27Dnzyj6qV0CpmCCUhHsPJy6z8YEEQHlPeTiFbJEQx9WwZoLH0oBd_xdVYa2riXZenDYmLRdI2W4wPYiB5Q2X1J3nD0o3xfh.nUe2BHxKGLl1MTAe1.sMiHumRSG1.fqGw.mmyei5Z5hoBGOiVqA.UpjKPsbYgoDEC2psNhUcJLmf4UCnzRfoae1Zte6YcItL742gS5vvrZ8M_2ZnvH6IFK6Y2b9Qe.BHGevvy5iET_.cdqiMNhwKi3hZjwZPSL00yH5v3PUMqLMekRbfDDmzryKvBfGbbi1ZZoip8_NRuDS06FI0oyVLbxNRz3Jhy7v9pNVV.RhH.NhpnfqAPmEGctOJUGcJNDkTJjjwqQAe6ZTndr.OGS._PTtqEhZQ5EltjqV0.OtfHkr3iTirlStd7Qo.c43WRK4ojp6n6Z31OU8Lf69VyzfidLGeamcc8D7d9POlurx7erdEg2z6NX1N14O7L965p8a.3R4FnVY15qz7FWrfQ55I.O_TM0kvC6YxeTSQcBFxI3cZiBne14ei3kmkWWMD5yzVaU7qBdvkCZLpAJtwCreezDqOK4oNkyt.YxqFgRcbHBji50mUaa6JQF2OE2RFiqiePGDs5p7p8reJYsRAj8hKbjopdREBw3r5Vu6yXR.SWKnU4rB6EFtODh6V.bU_nVRbLyoGWiebZrQW.3cWLx_3Cnq8GmeRlXMnm6nP0w0eEhQ0BWjC.DwPAGnnBZgo13BWOFqNHjNDmm8WGdVRFbhPZ8iiRTo.hBPaj95GsbHJ5J6cKZND.uvLbIcaCZvImaqvDZjpeBg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7b6cf3953c988';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\/5079824136?__cf_chl_rt_tk=U4HJMmFOvhzhuhdQOO11yruVD6A3d78fj3cDcD.TofU-1739144527-1.0.1.1-k5spRyHRsQ9glF3ee5kK2P3LVNb6Q4Fpm4ArH2epCns" + 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