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-affmqketh.mit-edu.top/post/0219468735

  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-affmqketh.mit-edu.top",cType: 'managed',cRay: '90fbcdeafb48dda5',cH: 'GH2xCpOnUSuNerei4I_Lu3Gk2XttWi_X0CXGy7JFrD4-1739187416-1.2.1.1-rXjqahNtr1ngaELF_GSkKTp7vrliuKVXo5i94DAXKLEPHtk7.I5RdKRbIF0LxAI.',cUPMDTk: "\/post\/0219468735?__cf_chl_tk=E80Wx2Ze3H3KK.1CskTFnowcak8lvl7hX5E.4yn8pRI-1739187416-1.0.1.1-ZTn3H0Y2.AveHSBTiCykofZZQ11ifjsRDU0PENGSUzo",cFPWv: 'g',cITimeS: '1739187416',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0219468735?__cf_chl_f_tk=E80Wx2Ze3H3KK.1CskTFnowcak8lvl7hX5E.4yn8pRI-1739187416-1.0.1.1-ZTn3H0Y2.AveHSBTiCykofZZQ11ifjsRDU0PENGSUzo",md: "UKBYKcKsdWytFg5yqJVXvXrg6zPuurjJGnvbtRdz.fM-1739187416-1.2.1.1-Sq96PW4zfd2YQx7od2WILpdRgz8YEKSO.zuaKQwdrnvkadJNqBBAtI3d1ab60lUdcjGlAJpyP_Brp96y4vrNnN_e15ifmq5zpWIDZwjTtv6JmptK.pWLEvEivFGYpzWAOXnNbH0v3AJyMN5j8KmVXtB4YvhNIZFnYo52OtXslq5aPlp8tq2o1jGK6DtZUYK4MqWtYhlVAorBzEK8sIBrJ5fAhrebJZPf2CKm.Hv5UfSi8wPVNhiCd8fI4KUETDXLNaXXKgNp43tZ3a.p8tTxFOCM7PzZks004.DdKz8om8MegeCmKIGCsdH6A5JNOewY16_aOFCDaw1oj5FjWySoLjsRUmbxgowywkC5ZJYjsUyymVH7bBDmFfvn6EqwLqlYcC8I16j2z2atVi0CgXabDOCN1IPqAJQU9E8jLYDzlBVk.mtFvfT.Xt5.qTWPqHEk6XOOv7I5xcCAILZFWO6cZ5x9pqh_RfVndkrSCuZrw6j6fFvZvN8JdQMeB1rMByBnbLvCKyepLK.6kiKmeKsCGw8k1xGVwfpe3bWg1AAKqFsC3puNXdNF0qe9r9FZy8.6OTJdmKNLrWoKmNHvB1YQx2VP.HEcOrQyWxW5uoEHJOMwXXMKdUocsQsTmyAxQmX75RS_AladQVAPUJI3iG9LRsZkXCfpwsFQCa.uM4VKwjqgEXwRO4dbWmZ_oXuWbszmEH0pB1ZScj1m3VBCduvzO7FmAsZoV3EmeJd5BIQz46sDSUvk5MupAVRnHCRBoRuwPEumDy9MZ2awbMVHuxPUnKND1LNlIsTE1FAJ_EG99Cg7L5jhbajsjWepC_0Ztd_8g5x2WpRoz8KsTwwmiXBwCIKBxKRuI2x20v8Qgi1WOtVpyjrKlH2B7XQ46e5uJZbaG453AywDL5u4k2AdwxbmElTW_YbPoOkIuAp_V5rZj81AkhS.xNSVCEuM7aKyf3MKCAacQ4U7YEDbrrINX4jG6kdRfx7mkTASUimx3YE4imr.RBqXaIi3E1GSZJEaOTHakZ.Wfd.D5G2OBk9gVx5H82e.vw5ShBXM.ZZ7HjOUbD2CrtSXBPynyM7wpQoqOlYHwhzgG3e3GCwAz3Hdb7B5KmNZH4KEO5KMSEDJt9Ukdpsqa6angBqvzcSJIY3J_Pw_vV1VHjp5qczRmZKJEUtn3JSYD_JHbTuR3Up6jaacNLT6YD0OuDLm0LofhSp1kdojPMH2yTAUakgzw3o8u8rC0l75sAm5usSkmS.e9iz7fo7G54MUR7y81PH.BUzsk19Kha43ZU0UxqVyFA.07B02CsznXVYIXDoyhex8tNrFahCdrhYDnZVfMBn5k7yFgSL2iNEW19UB3cYOs5yysOzD10TtiraI4qCNFQrg8kv8QXkZrnfrLiQH8RhVl674mxtgQrZrOehtzPncU9Pcq.K7U30bKj1AvvJwZN.1OEOmMTtu63gTavuEWUBE3RFfOOr1lZYGJq1k3B0b0gUAu_Cf7PtfwcMfTDOxwTwuKIGS8FDz1YcwBOIiFMxbCZ4j8J.CWiGmRz5acQh80GoTkan7EcfKoKpGB0e6nJck6Y40_36EpNLaNTSwiAKYiMgQOf81sC78dRub5miZOGnoSmfdFk3r6yTB4Cpv6IieGvGGI7O.P9qqFUHZerUGSDrYqDWVAsXXp1n6PyvsEus4kTfJxSte5yY1zlpF4qlhU2HlVPyeLmTz2B0To0UYei8LNRs9GcC78.mewuODZ_PRTrNSWgW5BxYMpO.iC3CftLsHGcTqEtmouMDil7aOZQ8e.VkGJnbp.cR2yUs91MKLBh5zRRJCw.HiG7Rg.tjOJkYNQUAN3QjbDYRnJb8k9g6EhKx8sSJ0.Ma0UpMFN23axgCVmgu0GnNamKbYyx0sTku60AryuFU2PXbsPFU2KaRzd8MRQ04yhj9m11u1KS7fjeByu718AnZsjt_Juil3jdxhDzat5QSuE6FY.FRIsxiXWnqouxfIJc3DlleGkfOhXbrsIkgXca3GCr0Wt3ucdopob7jcLy0NAWm7Tkl5AgRHyCnJCd7jfzud6Pvl01NZbAapLXVEUs4IYxkU9bCLuNVri8k4lHKfuIr1jTtomaCjk87k5OXgBowXdFfk88T3yohGk6l_abh5fLdmjHrMEMDWQsXTSOu31LbKUXU94mxZ0enStXRE8XPhMaHm59CBnI750MKjM2sIHgU80IvvMFYJiGa4yGOtldNPBtColGmTKhKl",mdrd: "bp4KtJwN.jz.fUjAwmkkULRkGB5ed2aThnZjhvU5fAk-1739187416-1.2.1.1-2wzeNrlbFPuEMl_WUDbAkS8FkSWqNPXLX.naY3B9btJNGt2uUDyNxQFOAHiUP_Hxc2Lo7CD_7d9WOToBq1zy1TVhxREnO_jRhcDxvTbG0WgIJEYDyU.1nskXkofyFUsdBRkdmAaO8zDKrrYhr_dhXvlY1.oll_uzV1xFay8D.egwiN_avFL2ij63tsAd1B2ATpHsSTeYmctnxB6CJ26eZuTk1bMoW.5wwhEx91AgCKoME9bYPapzaPB0wMEzt9skFuLhY3hx2YTD.IKumTs9BsdB7dt9NBpjLFm2rT.JJAi8884HWMCJqjas8JAGMlkbkWrO1yDlsmbOi4Vzn1zV1L66NsVMc8tI_f53PE7huDB_cUhcj9tUEOLo86F2NlSCqKpOnsGB0meKBo0rdLhG3YRdImsRvfWczzQaSZl1WWyM94MY2Pu3vwYyZhFSmyBHIwdo7DXuVRK9S8Y8qWwi77061FG9kFId1DDDlneV2BjKuNA92MzlEROOhw5dXB9epdESo2J091HXNW2BPU7EI1crTtdkcSb.ljd1oaJfvwvymR9jBxs6w755DjPQYIMBLTKbo4dmeBbo_v30zD3JLq4fJdpj_gWTWQeDsC.IS.jMwqV9DxDFcVordh8cdCJXgviNDwZL5ktL3aHFTw7DcRg8YepuJHsGh7jJw8wcjhH7vQPipIg7eMhxvuG1kiIG5CrBkBJnkuUvspmGyDkipRyM.By1Gvfy_J3sVFezf_dC0mMWuD5vfzf.DZf5F_mo1YwhTjjWOT9KPyMdLaTYC0_ZussV92Hsoq83g58W3pnscRbRMashdFEmka.KpDQQgobNyi_P6tnIdIfHY45zFnOONzrIMocMgiTruUMkU5bB5HReG2xZsp8S0HMhv9sGtUgrCj6dQh9CoIPsNKJ_Gqtp2VPVXNNock6PoseU2hVw_ohGHBr2zT7UkS0D2aKRSEwmW5pahWel_myFbr.P7d7lYvcSBdPC2a3YfAmC0lR_loQD1xoTXg2zX9dRVvWEAFbPhu3ioZ5Gk_vX2UMnE9yvRHwJeNs.1ZH9D_5GWA0h8ByakjlyGQyGjwBC7DPOF5f74bR0_.f9K1.xNbgqQjDZnRCe21CLN1chx9yEUJVEPiMclTv4lETImH0R5w3i5i6.med3ynQhygnp8XxLZhRxmyOJcWCZWv5fky820HNv4rCBGeE_Oi0GrperRB8l14cF0Yblvtmp5LIDMPGXRJ0XZ84Kocq8qY374ab1IR1nGqWtsqieyKhg.EU8JzuxGXGVF3JyxHeSINMUMeRYrWqLIjlgHvA48_UbzmE645djypDXIF5T2GMmMY45HpX9KSajZmWyAEYsrnMWExmfMQnzxOZeZrJuDuIx8vAALd4gHFmhOfxMUJgyBVO1RCMDevbEY7OKEM31A_yg1JrZeUTBeRp8Xenjy6QCKIpjPbsT12JjcNfiJioXBxBeToZdcTrSz50GuPBOMYzmYX8mhCyhR.y60igN7z3M2JaBxLm9EMACjCdZpbBLxPQFiIo.Z54LyUmCO7DY2AYTUd7yNdl3VghEpsiNDSKra363piyylvzaycT_ZrqRlYvlG5pnyNbZnckYQ_JYX4WRBQhzbvil1JfDqhc35MFvZ5IAXfiwo0_1KwZU7VYmG.OTcN0Wotc6J9gCjMVae.5j9V_.c0jdSgDuXJ1HAZrje_NCR_WS6ogwvvrCZFryPyav8gsfRCwFi9j9zuAwNp6N_wZd8b73YXgiXXIDu7OXOD5fMtRMDaDGLdkrCFJAShbgoAICfWwBpXpu8R3G92wiyP_SB9Ol1lnbRo8s6VoTqVcld5c"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fbcdeafb48dda5';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\/0219468735?__cf_chl_rt_tk=E80Wx2Ze3H3KK.1CskTFnowcak8lvl7hX5E.4yn8pRI-1739187416-1.0.1.1-ZTn3H0Y2.AveHSBTiCykofZZQ11ifjsRDU0PENGSUzo" + 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