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-aff05irqn.mit-edu.top/post/1647358209

  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-aff05irqn.mit-edu.top",cType: 'managed',cRay: '90f7bf169be88263',cH: '_504sGNphQvVDF3RmC0TL16Y.vb._OANwwa.iCqceCI-1739144866-1.2.1.1-4lVJAxmdTBdP61u.QYrkoYVM15TVeqr1O83wz3B8okv2X1KX6dxBYJ7YI6yQoDQ2',cUPMDTk: "\/post\/1647358209?__cf_chl_tk=AcZwX2P33Zc8IBlPBKZFVFFrBfB4A_0zv8MJ1fUFwp0-1739144866-1.0.1.1-gfZw7At43sQP7UYqw5u544vRRxdRno8gGVBj0hxmys0",cFPWv: 'g',cITimeS: '1739144866',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1647358209?__cf_chl_f_tk=AcZwX2P33Zc8IBlPBKZFVFFrBfB4A_0zv8MJ1fUFwp0-1739144866-1.0.1.1-gfZw7At43sQP7UYqw5u544vRRxdRno8gGVBj0hxmys0",md: "hFndzthCs027nRtFztRn_6FFQ.eGHLcjpg_YRS8bneA-1739144866-1.2.1.1-B.qqzDPjSG93XPbaVONwqQ1sd48utj08YZPVVBu8eC6OqDJXozTQ9a7t3r_y6qaRuKzf0rnp2tmfdiwfcpLppN9205okS9uwc6qD849njpcc9jkgYC1A1Pis1ZEqERd8Kt_YybIJMgXV4prHdlNhLK2UfR_hHlueGJEBpCe6ITy4UnibIbwevDYUn75n5On_QNCgUjO8tX1SIuEav3KzNd5xHlyWKf88J7wJkzZa_fuLuJTZX6KnrcpCklyqhECzn1SYbsOY8VAGZlWSFf9AtLUkk9m_7oGHlH9QHRCAtyOeso86O2On0yZ0DqkWDOIxiO.8dutPPNWoHekznPFMU_izQdcPXZliTGSIFoyOdG4Gj0t.SZAfeoXA_tuGHQ4R3UHuO.I_3WChHcDlu6K1ZZnqzqdckitR9w_d.w7yh6C.kABSlwxHHHlIhkyR8fU7m9S4QJtDlCchu8fpEjy2RDgJhPo1LAhosne7_5oZlGU.wuAjQ8RIcAFwhiaVi8OkJKvr_dUVpwTz3.7U.3KGcKYeeUaFeg0qPUTSjPaoCdgD_Vj0VJGKEDRotnRqer1jim5G5wk6rECZLplS8IeM.NM969hp1eTPIYiitCmVc8s9.7DMJtqeofWDKoCB_Le_KwFrDFTwUcdkZDui3qDf1Fquu1._E68DYhGX4x8T7nnD4qPTkR5WLK4MXPyWc26a18ZKDhHt6aijStHlOBMe671qefvAzJ6wZLkXRkPhAyLOh7KpLMh4.mT.Jb_q9f7gbrGmoo2Kz8IRrx50tWY7N6tnSCDs8lAC2yPPmXCwlMBKq9px0sQW5TOk1PPuczCLYBoCigakLlu2KEGkbXDs7tz0DdBh84oxI_LV.ZhZ0ThSGlGwxYheS9dMhv0f5RHD0dh4zAigaWuTbOuES1m2Wn_nA5Pif0e9PX_kh2B0GXhshVcXpoYws1YroHOKAUrvWeCDob73HcNRT_FPcAam1MPLKvw.Gg753CdAPzji0csj88ISdeyqZWeK5Kqkf225fomP6_RZVUrc8ujWuUp5FapnyNEwQDB1ibTULHVy.X7ahE2BClaplFqjf3HSYCQNnhMFzsiGQ_kPIUpRW3yokLzFWICmRnzR8uHDATw_23dutQ00qlvUrJMJMOPjx8AZTqik0iK4tiKSCOQTlsjhvoJ_4IvWsBMNW0XSmKtLoUxQlO7Vh22fIKcgj.Dc9PP8H_Zpdwl58MKYYxlBPsgNrdixkAoIbYS63OEP38GPFHpNa9Unk00X0cNgY7JCsFoGiCOKqqfFQZnNbLXFZ2udYjKChSyTBlUb.yfdECkjjpS2y8ovm8fCA1F1p0u7mhiBMA7KDT_t7C9Ag0Cq8saRVrUMh91PxO88pPL5ayrT17c0wFmYKUdCvIZcjwlTQNJQMCC6BUhJsdjQaKYlL9XlMYPED08Zgj7EG6Yk1jSVubUM8FhcW.uz79lbXfIEyLUHCTTX7DnVGtlWTv2.Egpj2yyAr8bqNMqdK5T9x3fJry5VlfaZKSDQ.VUBb25o23wnCgdZLd3q9nDtdIbC4rGJQfUIsgamEfjvIUjCP_rLz36hE.ruY3iJkUs9iy2OPpU_HUoKkXl1DtvnetdEMimjfAFAyHqFLazxAsIQg6SK9nkMJ7.wCPyO6vAWtPpjuZZdea4LDzRAwEqXk5wr0dKJLURUfOTz0YpIw1I6jg1YZ5Y0.TJyPWiTbKF2IenyJyP60RCeTJhlkG8xoWLSr6rem3Ff0B_V8Wym4XDJMfJPxkpC_fKLepczc5nvhoaty.2jZ2xUBHA6zbREIX4EnPnnF1p8CdB49i2ULO.9fBzjvr39dDnvbjd4GrUTmVLFrzXS_EoqkNOo6hdAsFACPwz5pt9iOgI244KSazYOzVPXGCipU8jWgCnWbD15SnHkgkkIEwTPx9LWM.uRQI.BE5OP02JmznhH.UNrUlBap4jKqj.9JGaFfqIOimBa_AH4Ai1Kx2K9GgfW2bb87CHV0XUjq2LkL0FAr3y_L.3xuvZgKRihqWRQ2KOaSl6UfdAFOgjeTvI3LQFlWl8W5i5wCIrNTG7D7TH7ExH8.LwKiSlS8fXfI7a7N89DZnuFXm3ZucJquvesarE0u3C24o4BNAhUcvcUXkyQxCADz6WHL2FokRKLvTvrHlnugZ3AqGzWPOH3f6OC1ijmghzcXJHNzJlnRxiQ09cS2aM1a568HbzXkmeIhfIp5QTuNQanxjjhnhlL",mdrd: "vLnIczsd9YqGu2HsXTJXji4o.i6Jh958yEGe4QJXP9E-1739144866-1.2.1.1-wvKjr3Bg6NgfIOWmiOZn8.GmnvJs7GZFz.ikSxHTm_ECHVM7vZG9JrtbCB2W919myiq6a1LA3AJP1p6_THIIRpIgI0jO2tgZT0n_mIDeB6QHjPFq8NnoTba5FdDVivk1pFSv5vq50dtL80g80Fs7Z6sGEHECwMPueiQS.8Z5ezMVrrimfMuQ_csUtLelDgv7ygjrxghFE9nlsYiYKVhcw.CyfbQKqjykxd5OUWPp3sywbt5HAYMmjKKigMPkZxMaEdkiOnxz2K_QUekilExu9SCP.QH44zKwm4vsFMz3PmcQtdn7ikeGcTdHE2LzztxKnQMP8Y4ML7depyzvsef_6b8Y5OAuQAxI36MSSoix7W.tAre8yTYajSceoD8JwnmvUyuc6g3Eye5HSg6F1k7wZWMSgEsJ1XwFOW6D0L_72xU8TFGlvlpgLsSRw.58K3g1DSANCZK5faWDJw7mDlO496BpQJ4V2u5pgCLNpS7wtK9qTSw3Qi2myaNHJDNQNIa5QsfJKEqyYDSJFa7Vvx2SKwvmG6F4PpH0g1iS.8lJJ6uINgz5UXK.xgVz.FMC8ccPqWWqftm4tbtjoU69vfN7COlAvXd_t.145vPVkdcQTC_83lrnV8pNpPqWUJkUXlVSK1v8nJNv4ffUNO4dlAgZxFFYi2QkZu1W5qg1W90wwrYU_flXQR65mSumRj1Iy_CS6TCsdJQp1P1NXBKC6MNwGA4AEgvSSC9cWKdJcKj2B.oczTIG4W5J.4AXPPFb9f.XIo21aGFqjChyCMPWWiRy1JCIaT1GiuRzGHZ_N9AGi74_WttTV3NWUhdOkj3.6Cnt77K..VFck5Co3axJbeKTmG91UUVA77_sKX4EMmmExNoTQMSpukop8RZb4RGuflSHxq4ysCoHeakdA8jII3AjmBnr4LqYBPhGjmPbp2zLTz1SoFHIAmeK0GISI1zaepqRjO3P5Sl3xI5rf6DI9fBMdJN19K5g04prX.3W_ajTm980.CLpCGDv6jqB5fBzvgK6jAsXLYEp6mTH7An4CW3nTkD5G.0GrQylpAjJ_8uTCX24dTGwV_tEU5w7owg3ww4EIVvHKQETWp3GmgferCvdpPzuxX_Pho.cB3554Hz80kcuEkjnTZ6YL_TVTkWr71UoDciCMgpQ8xgVh709vhQ5dBqOdGG6RBdhbgJzmx5GoA5w1OCS6sIao4ry0dG3SvRWgPCf.KHsl1QyW72NHSFCPbkfmGVs7pDkXvgKqXVRQhmUnb.S5DR_GqcVfNLeHxrv4D0nbBkRY2UMM0aUE73Sf9h.RymhWzb_y7fIxzdPFYqetH0KbhH.6fl5Qp7bq8fd_FINdpvSc9_9iOkI5qGLM9j6mxmfj940UmpuLxSozV6pf7iGPe_TxkjleWK1ki4qKTY69oETth6L7ARwk4oNy9s4qFuFaalSUUvrf3QTC4GOKMpMd1jrjmPEuzbrTCDLzCVXW80uaaxmSQlOw49SJRfUnayWvt1XdoCsKov5GidO.Z_N2y6ShnzSkfAhMArO5gHforRVVNqaSUOZvXNX_FQrMgOzUa2Eq5a1KESiEn80.GOjjZt.JWjTNpJBCrzk9XDldV4SrFp.nUzdb4ZjCoD0mNi5mNpdWxnmziGM1YRrfMBU8QwuWoYyv9YbXciMkQYnPQXlh9_rUu5FPrnVNp_OssS3L4uGmTjE3ttGrhyaun_XhnxqoTrZC_edboDS0TX.BcsNVgaOIgiBYiBzcsoy17ag3K3AaBAO26KhFmaSt_8UFnHw.Z78B7g.MNSPopb_TD.3NEA6lTMhhfELEg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7bf169be88263';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\/1647358209?__cf_chl_rt_tk=AcZwX2P33Zc8IBlPBKZFVFFrBfB4A_0zv8MJ1fUFwp0-1739144866-1.0.1.1-gfZw7At43sQP7UYqw5u544vRRxdRno8gGVBj0hxmys0" + 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