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-affzwds5u.mit-edu.top/post/7216438590

  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-affzwds5u.mit-edu.top",cType: 'managed',cRay: '9112baf5dd770800',cH: 'EzLJ5xyQVb2UE_AN2p.kRDCzCtxArEJy20ijrQ59ok8-1739427812-1.2.1.1-7RPnnRG0uV1R8PTYje51wuYnwAOAS_7ikxP02.j8H68XrHqWgCXgGff5tQR6Km.x',cUPMDTk: "\/post\/7216438590?__cf_chl_tk=Hp.wE3WJ6PpeGYbqQvzxtm1EZGVZfWZByGm0X_kxX8U-1739427812-1.0.1.1-EsI2ELZMQI9PCob0tsSKVP33nRrBMQRAnoQffAYcf8M",cFPWv: 'b',cITimeS: '1739427812',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7216438590?__cf_chl_f_tk=Hp.wE3WJ6PpeGYbqQvzxtm1EZGVZfWZByGm0X_kxX8U-1739427812-1.0.1.1-EsI2ELZMQI9PCob0tsSKVP33nRrBMQRAnoQffAYcf8M",md: "yVo_brrs4q2MPWc.i6oKWwLIEU5cw3b2Lf.LwwECALc-1739427812-1.2.1.1-PhPm7QLsOogo2jIcyPF7OllQb4sNxprUA29Ey0jID3Kk.0M6nLkzy1UqTgytOrG1VbLN2YEg6lDRPdf3mOtaYHDRkHAtORZpWtFO2nEphzC6OKt62OVAN6WjvT5lX_eq.xDekdKw.jrCdfYBKphQs010_9KJfgw3ALM4XP_vjahSv1H.FInLrl_UhKh6bL2o0B.D2GsrOZjaeIHW1AL_p90JPryak.AMDdqV0ozlnu8B_ueKTaQhaP_H.YWXoOe4BpzfURZ5MH9tjIrqwNkxgpKLwAcdxR90goF5wFy27QzPmRSJecYEKy4mNuFBCTeuBOCTT56nBZegDmt_uTP9UyQApoDXsjDqM4vSkyiEpN_u7c448qAdXtvO.VOZ4UsFPWKm4mmQowfLR5NhUaCZ6v4zvXyo4.C1_oJXbKE.x6CuyQyzPTeEf0RCqrKSv7RNHZiCXrLw.7BesiK.EqBl59mQ8oAdj1pVqPalhDX4RIVgwXvo_gdMWszBmddM9jp2t7Hvd32xIst9UsnQqUziBwDrdl3DydaEMwAAYOqzko7BfdaDhHuq2vNiaACRDdyE1qGUKl8DXNPWjjuqSt4HCj1ZWc95wzP6uw.Tn3j7rPCMGl6CzLj_.hHN2rCi4eCPGEoySB.El.7jE34Z_M.oOqTQO0m3hfhgvDWkq.DRL0_TXp6b_HOo6HlNwV8As2XNq5QfM2iv0gGteLPji3rvphmhR0qkCVu1GsiO4zJA97Nt9BsA0g6R3TH40kGceHzApx.2_z9oeBXBo4re4xocfrLBFMtgwmEJWEPrUEUCUrc9yn4L7JWcyDdW09OiDdO3eOlxwpmlDwhrmKqHThygDqT.xNlNacmSEYw2Mu9q5yjHcEXtILzb.CSosVZzpWY90V.IUmZZ6cpEiDyAF.KKUi.pmHYF76g2_XoYOAsllHcXIsS5AAG0dcHRA8JtttDkQngzpG0V5yLTrxdWjzHZRGjiYV_MapguZsq4vmosuD61ewzimQkUcFm3vXMtbi3fo5OiYaYa7O8tSFbEmz98QjnJGuWEq8rpk8pJrv9BAa4Oj9RB5ke.GnJZhvTYoRCcXvtkYabwHirjvFN9UxbLHFp0hNJvSSv3c9txwktLNHEUXhBzH3RbiUHlY0zpOW5AzrKg1e4CcsFVp02zbuwQl0Ww1zlLtTWzsflxkHfTXHYx4DLN1kJ5Ngu2WrGa44F42LMCXpsu2at7yfMzWB82IXiGV4gbOqNmtUZbQaPzWerebPIvgl7ovsCWCG0RwqnTbF20AoabnN9_i8MjeMtb_BwHVmzrfHLL7cXC9YH7W5Cwn4cfrlJkokwhf1WmKvYljc7U4e.ZQxPhsWTbn6q2feHjP2vtDp6ynw_UjpkXD6b_hWWNSZjZTKUpXUx8fm2s3EjJGXOXQTOSPbQsKiH44LCHQkLfzublP54V481M6QeDrJbXvZVGCrzodeWKP6bKQ6TsY1aP6vof4AkIktF0k93.h_oIuvcIYR0XKLl4sCHfLEy76eGaw1CPhbr60_XnR1g78L8oSgWfpAu8WjZxXhJOfoUa4TjS3BCFAXTt.vAwy471YdB9iNigp0GIN1S3CkBDnwjgQa5TkLFszil9IBXVzu7RQTezwjOh10SOIC949ZZj.JMscStCCbLh8zx8BqB_PlwkvCXpY44mrII_NGqXHHJEXgPukhVkwKoQMiDznoE0ogBfPsR.DlO7zwFrzamLZfX3VjwlxFBCKP5FJaz_Vn4JG_O38OQgHjb59S.dfNz.OT7h5fw0sQoymDgBKVhUotiDgudOfrP7Osb056DqluzNwKO.sJOkc_K6AvxBW6UShCS8STKs3OiEhFgLNSbhEGYnT4XBRN8KC.F.DPqxjGfMji0CadMZUmxOjU65fTarq.dhvwIHpiqqyITaFvk5reGNA6iX3noCXK1H3hQ8I_GRF9uHHgNra6UZIWts9WCBOgZ8pNdVBIVp67uUmmoMCDCSGG69HtM3cEnLkC_UokeGGEGNa7_OsSONBNzEhK81cmLCVM8yIwjge4XibzPb1RpASrpuWzmolamkwJzVJVBu14CCP8ahyMoaLEaYfjkQftMuKKvQ3FrzJC1iqNIWkQopi6R6dgBMQAAmUeCFK262pvTW4pSOUazWQxFNU081Y3cu9PKMpLMXnFtBjt4xEXOW2lYZBx1fiAOivzFYP8DGslZiN2RlfPDByllK8qc5reUZgY0YffYBKLr5",mdrd: "rYKesRnAnHknHORdDQLI3QD7F5D8yBTnpPyplY9v42I-1739427812-1.2.1.1-WKt8jJsfEOIZyiwMy0kwPR86AiOIExnbjDj10NX5HjdhpvwasUI0OTEJVn9p4x.Hiv79E6sKoPY6YnRspIZhrIQMn6Yh_PQ26HXmifb1QUbVMUrYq31LGYdbwXY51kLeDNEsTGF_ceOc6YZFNhxMLfo95XFW4sD0Ozs5TkedKquwmoOTritJ6RvlHQlqW_kOTrKWD1ltcGpM8M5xbvmwza3LOKWmwqmX4VCaaBi3P_A.RDNjDinUkIfPiQ.83SoJObCdweysXfd9L7w385if9.vFx48qERVmSr8tda.Df7Nd9PZfySSN0fBbxdpO3L82vlmJL_2BXKrPwHAkTbaaFZQYn8irOebUiVVGRUDr_jYQ_f9zLVONPe42MBggAWrzfjTUtC_tfo26xjVy0IDjSvTxi0Tr38jdZo4gkv2NlnYI2m.XqU1pvdU8t6e.aafMbv9SaH9H0n0usvHnP_8I7AZORNG8YFdAuU.E4wFc.GAgqKY9wrPo1NxW0Etc7DuJeenips1z4V7RJG13KO7qcU4hKyed1LUknG3mgX.cZLWvWCUYB0P8vt3ObDKY.f_UGsWIoZfSAdJuXGYFEN06m3GiFLcgwb.klMjHZBF7xroI_B0zWq6pJ9qBW_.arG6xWq9949iyJ.RYUAx0ZO2G6JtlbmZsYfF_3oTi_jTmLAy_sB8eCHvHEgDyn079cg7Pytfg2AsjaX6VY5BdUMGyEn7OyeDjpCt_LhV8.EE7Tw5ITpDeMq15.vCOmzalV.ljeF3F3id8TB6770UtWvFRuTFXhog4o3sme2kcObShxTQo96FZMmCOaaEU3XSEbZ9LJwWwQnKfzeo8Ty9es6euOweWPrIZu6GSGFs9T5thZmGIATwWQKdmul7jCWDS4WdRvhuHLiTVkj1HETX8eHB6..9iObrnVXnLQofxL.VvF2sRHUB9Ur5u.wfw9K9CQG8JVT8HUC2uCR4VmVUdfpSHG_Y25ldpStXzpu_nxMxysXln3QgRbTIwW1pBOgUhKqVAB09Up0JL_A.y2P._YDsogseicjdf4MyJTUgZ8amnxrQSJ.ItM1W9D7_k92ENUBZavdh2RIc2i6R7tHazN0.zpfjugVFXlXZ8uR2akrdtqz1DD8tKa0ysfsmtuG.2wAZQXyDv3RtYS.OF90smzfYZuuC1GDq9pKe3oTBq5OWsEbveT92xfxGyzL7PiHuwwflbsnIUwjOOPO4OQmH_pS.HR2YjiPZZnEYTeMobEiYTaqW2_KFCwGPYSZ0HtkNEXUBD_dc4._Ha5yvEjeHesZbWIcqqcC9hUHbJhpZogtl9BDTh8qJyVw_w2j67vcWlg.z7YqsWVktpgQf97jTcnk3GMFQukXKmYFirFBO35A2JvM_ALbtWQK0YSoNuw_0QejgeBQcm1ALkTuX6PL4XS.sD7B1IXacnfsohKIVaVhqumGKS2z8r0KUOWjVN.gmqedcEnobMlPoyJSvizcBdkXZqIYSmz7cHuZ4izPzc3fQIK58vgQstc5rXv1z9T3pp7x39KyaNzTnJCNy0.dWqs8ONjHJp0uvgZ0bwZtCbe9hOGvEeu1dLMNrDCOiRJpq1MBbDCXOI8SXCkYMWxzHI5xDzW1XzkwO.VXwr6G7tBs77Ob8h5ySGkySDA5SP0vECOywmzm60DTGBm.tYQHsuhn04Wj0end2BOvGVm5dE32mW71oMY6f3uGJxTNr2dDD1Oy59TF7Y7tvvWNIcS.bfevCVrAz7ruF04_yxZYMF3pB7lTjaGRgX9RB_Jfziqz_pxKLwYLR20QrzqEIlgGZrwx352QMhM.hx2GMDCq0OHt32gp4"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9112baf5dd770800';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\/7216438590?__cf_chl_rt_tk=Hp.wE3WJ6PpeGYbqQvzxtm1EZGVZfWZByGm0X_kxX8U-1739427812-1.0.1.1-EsI2ELZMQI9PCob0tsSKVP33nRrBMQRAnoQffAYcf8M" + 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