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-aff3fi7yi.mit-edu.top/post/2709153486

  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-aff3fi7yi.mit-edu.top",cType: 'managed',cRay: '90f42f607e2d083f',cH: 'MQvaZY4BEdnkmsfmqyF6Mu9Fmq0j_5pOptRhg1TIZBs-1739107522-1.2.1.1-QX9qTbtm5dl1Sw4cO2MMUJTtpaXiO.lkxxHiHTjMJ7lKpESOonujYX1FLhwaBQW7',cUPMDTk: "\/post\/2709153486?__cf_chl_tk=8jxJ1755bJ_DxCusxCkZJyTu2FtOneqUttj_ymN6.M0-1739107522-1.0.1.1-vQgTgdSlGU0Nwccf1cKn2gpvDx1u0ssmzfj11J3Alpo",cFPWv: 'g',cITimeS: '1739107522',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2709153486?__cf_chl_f_tk=8jxJ1755bJ_DxCusxCkZJyTu2FtOneqUttj_ymN6.M0-1739107522-1.0.1.1-vQgTgdSlGU0Nwccf1cKn2gpvDx1u0ssmzfj11J3Alpo",md: "YSVqUl7bPfTnPAVR1wQR8bmNiyim0aUTA3QixVafiOw-1739107522-1.2.1.1-gHIyDFIqiceR.vZUYlY3emzY55y08uWIGSGAmVRKucDSaMsaITdyWSlMMn3N7jStwMQa2mIWm.vxKYTqP7WJE7UHzxJoFLfVKxiJFOlbOtvw33QMlTjIuCcTjTdWjTCy7tFoj.7hgLVxqJKiaqpoDlvOcvfEmOhi2iHZiWET2992MsconapU0OGBJghZSD9xJjtIgFNlvzlYKqu3R6XATJCAgIK_ohRYfejrRseJ_N_ZYuM7pUrJ3jOoris0WHmCG1Kj.iW1HEPOOhRBMOLCBFATDqRz2Xw3LSFtAWhhA0SLfAQ3bzlxQjogPPsD3WUE1TYfo4juGdcqz5KrfWAB14WFATDkbgv5l6MJJRakDieZ5O00BDvY7uD.wCz3ZfsgZVnnxhGFqhFYNOUpTx98Jo4orEk4_s3nSwaj1ieygmAK5j3L.WTMPNvxy50yGOCAhWJuC4xPRzGUduUf5bALwJmwzE2xwOXLP6rmEdVyfqGTHZ4XswF5JYmPw_jDrC8ZQgA6h00Og9wIre5HgzxhPPWOmJaUK23edpWxufCikF1vqnewm0GKTyV16fokG4UQ_lZ5Hoqls5AEsIh8VDHpwXFne5IVyIFqBV1HxsQkJNipQo8c7inj0nFcziMSipUf5kQBDxB.8D4ix0Gedy5nulHk1FLhiyRGHKh0iw5PieOGz6Vyw9udIJm0NR0aHb.iCHw6UKzFJfcosvXB9wJZR3XbpxUC1XWiUeGQyDzLvs2yXWE1kc.QSy8T.MKeMz1Xjq_hsPNwpUNTzv4VKulJL8tOO2lua5aMNpotH5pUk81L4NNWHMS5TvK9eyomRtk6EEZw6NhEimzVKDZHP7MmRImJk2qhkYPghpjWrsPQteqKylflkLE443Kj.RpTFRMTBwD1UiZ3.LdZJY50IQXP1YYBo9NgS5zckfGym0gRMO1UFo4ZxA_KoAkqUiG1JdiQ71knJ6NSXpYzyF9puPnB8usD.amelQcTNKaR86QKIGSa1padjwadudmtgQTCZfm.AGAPFdxAE_iP0j1.jhQ.aaA7k_0P6O6gJNS1P52DFlTCabCYpCmiXzR8oSZKK9icUsT7c4ofeyTCafGNjJ2kDLBVwP_9Jd_LtC5pGPgfDCbGOnVzp21H9goPuz9Oi6zEzrzfJFK92vUkav4ddgQi326YA1JxzqBng6DZIFXnPKqH9oD83JbEzxB.9F6UP0I10d0f12qqhFkfbyp3sggSzuqs17LyVGT_798DOAOM4YLLUXKY8m4Ld0lIDrYVaYE1XfXwClL6n3PFatjul1aUr3TS879cO4MOIH8_sKN3ddfwcCOTM3ja1GQ44TahZ2f6YfIYIzTRr4w6ow9hKWEH7N_2HYHHqd04MjptlP7TzVx2tDOti9JVehsU8M96QcBnjzys9UnmGuwRZ0sa621bDAd.gVQCNX.UFw34UCIqVJ1USohIOnQza9B3PxQbTJgyqdORPLJ5VAo28lzeKN7Eo3hScjccYvrWO0V0sucNi9.QAiEoVwIt51dPwcnJY1TAtFQ2IQuEdihMT6Mletmh0NbYsW.JHeLr12j73q2VX3Zyyz_luzagb5JbOe.4JfyE9WSBzN76GNse7mye5DrOmyCXzYtRf5V2.IdWQc4kuBugvR8x.625joqLLCOL0Y391yEP3ayWDFiE5NdpMUCx_WugOx_Ij0HR.jnRfv2YscYGSILx9oif2oacavCPHTdM8mPS.ZjqL4vAtFlcoPzwJ1o5blnmkf5kINIFa_X.ZiMYMEt9diVU_qnplIA77xhMyYnrsUj_wwGLIHcstHqF7JsrwrmD7CVVLehGfvANc52Sh8K.CAG5hC8nDieKDFZBg1Nrt1ZnBFNT1ANeBGTXsZFke46aa9Ac7ftLuCUUKjuegrkO_w18FhCytFei7cTPdgCG86aWT0gHpTJr2XUw1Uc0h45hxgxvwSuJ8KpWNzceIr0lG4GH.m73LU8OiSGthBGf47LJt3uUNdGVOx3vh2IPw_0oochgOdqfCF5XhD27cnG1nAUEzjOpIjckivxU_uS5XScKU_2xZb7em0TDiLgMVJYFIZ5E5a_09eST4WQ267EVPTz8kmMCDrd89ozapvIBEzN2NAAPvkydCk8sQi8.2cIY2vxOrC54ITARITVf280K1ILQszJ9Cxv7EMBeQI2th16JeM4hefBgXLN51AizJd7PSMe.85AaH3Vjo8o3w0GVM979SS6GBsWvJA9i",mdrd: "zuk1OO2YVAXh5Zta1KXJ2cFvhK2FfbYls1EDAePT2jo-1739107522-1.2.1.1-Gyek5HwDBDRTj6E8Zgg0SI8KPYkII_oSuIl61Qriy11TdDUeqUdJ_EECMG.J0suMZqBo9QYY1_zkMhwPhSqq4F2k_btEEGPcFg0rxZi7URnNN2IoaSte_1sorZzdWXWYObQYqbMQ98KwRA6pKExGsKxXX680c7t5SLW1fvMuUY2HcYds1q.FYpak.wV32ehOB9u025hZk20O2f375xhh62IFgyZiH100NjWgETh2ygzcosdE_GmwhNxvNJl84NeRTnA_iNAg3ODgFnAV5m8IapSg4ccWHdfeAYFuxI0bclEe6_Ty4BenTo8tIvj_585YZwDJVSc.zGogme44v_9gm2Zrf6VP4qnTQ4Y.XOKv_AUU3PA5Sf.Tf.c.f0u8_uJzxoI1DkIgqI0.RXX9OLmUe5qajdFJT2aZR72f3g5yRexolsf8bsZIUvgpz546n65Na7kfW4O926_OdLRA5kqBeq8n7WISDD_v0GG0y3ABalXLJIbKTf0NF3WSL_kFBY3nsImAPUByo1vp2A9bdJhbIh.YOLLnwoQvvs_zgF4R1rLDALwJ4iAN6f2bAiQOJbPybHobHoDuSACkl2ci3JWehnzcV7M9UOOneSB55xaVAHpBCs.DaaEyyP11HPHG1O7PPOtDzmEaGZT4c6w.yxLTqUqlX4X2wl3abWzIszOLcXTcezs_cC6SNgs55ieHpULZX2Hjwt67RV7S0dbDrZoikQIfcERsuSM8dHkLNYDEVdy_0FNBsojH89v05uX9xdixlooYxxD9OKE5jy7g2n0YZTLLUwtAm_gYNHg_zEFaLdlBcsaTLwBf6xis4xWjgcEgc4_FKIFQIQlwMuxttE14F6mr30q5cXmhYbdQd_LZ.yV91g5FUN8sYjG8C8vnFBc9od_dw.z2Pxw_fSsiLC2vufs6NFJDW6OlE2kTdkyaXLTZVdLCxQQtrlKWPCXQZC4u.6zc7A10ktXNq7IYf.5SdwVxWZ2UUhVS.UDsPZnPvBG42LyAbv1gul.7VwS0QcR1xK0eNGmKmZFwAuP9JskE4WTEpRHkOLQX0JkpNQgSNCW8DbNU4cQ_15jNfEZ35CntxWvqQiZ.3PxUiuNCaRY31C5HFDxuqdFx2pujr3DnNnv3uK_nPaZudet9cE4ZzjWJPjxHsEBAfo_u4jE1jePKQlcSMm2QKSGmTPiU42n08r4ePCOrc3ipEympMsPzA27.6LgROSx3ROLjkqsRTa8d97TCR5hZwxZOpUVv3HgTUp1oLdKJNJgKhYTGMeKPCgbrFGKudSYSkYd62xb5jtL1w1BdjjQb6NcMQVO30VafSNhAxXa25ndjv6Sz8YhccmFFSm36jTgkgmcp38YKFW2MYdi.NFkQ9G20jwzdj2GwWQBp0GQqO3_boTbDfmm_nDEYGtb0CeQGUaCjadQKKk2ybEM751BF3iKobvQluPQyv2dmIUnrfmdXrx7FO7VqUvUZsr65oUQnyWPnrgq7_clFIsPedlg0pvlBGuZV2M4I7UUeBsddmQ0.db1_68XA7J3datYTE1HqgvBPsv5HI2r9P7PuhSCAqLH7carg0y6bkYJzcBHGG5po3oI5sDu9QyFaYLhanlffCw.18wgdd4lNVM.ariSEaBwDM7uV.DrAms_CT1am7qQw_ZQSY5I72Bs.KaYhVXcyTw4695Rw57xkBXto2ejgC8y7zWZK7jHxm73rLCD8Ti5kiGG2VRaV7evvZ7YCkC6CpvSXprnuCTIuglSJX.JlEeG6PyUriEJ1vN7RMBtrZvhOO3L_d1DN1FGCQv9Zdcf7DYVPhOWPGt.vjQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f42f607e2d083f';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\/2709153486?__cf_chl_rt_tk=8jxJ1755bJ_DxCusxCkZJyTu2FtOneqUttj_ymN6.M0-1739107522-1.0.1.1-vQgTgdSlGU0Nwccf1cKn2gpvDx1u0ssmzfj11J3Alpo" + 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