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-aff16ebca.mit-edu.top/post/6178402953

  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-aff16ebca.mit-edu.top",cType: 'managed',cRay: '90f80b017ed0176e',cH: '7syPG4Bdxsuszad.PedW.eXJ4wAt23zTUhP4JakQRWg-1739147975-1.2.1.1-cg8sOlit1m6SAq7tR6ApcJpBSgqqb9Of0JV2G12fan1Dgx0L0aPzRl0V0s3y_OFh',cUPMDTk: "\/post\/6178402953?__cf_chl_tk=PHNMoO1RisC_vEvT3UdXRPwrXtO_d1RxJNA0dpcFUsU-1739147975-1.0.1.1-6dVRIPVB8DSxRiu.bHY66zuagzHDSwyUDU0OJf3fRcs",cFPWv: 'g',cITimeS: '1739147975',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/6178402953?__cf_chl_f_tk=PHNMoO1RisC_vEvT3UdXRPwrXtO_d1RxJNA0dpcFUsU-1739147975-1.0.1.1-6dVRIPVB8DSxRiu.bHY66zuagzHDSwyUDU0OJf3fRcs",md: "35U.ZNgslKANtEU0MKgK8CB3d.1szIIw3vcHfnoQ9sM-1739147975-1.2.1.1-g58W.S3J6vuYM72bTinpwM.ahkCtsczKlOxeDdcWPCNHFlddmDK20kG1YbrPi4S6n2rkhErzYRGdJwC5twHkOfyBkDlkRWuWGCuOVlYEWwuZ.9PqOhVGV5AudELjct9Pv8dFeOS2Cubclyy.fIXXKj9ILTpGjMgX9tkkxxOBJ4bXM.IXYPYZhSKMhuGcXKaP2d4OQ3zo18qK6f4AT_LXCsZ3cU.79NCAncT1sVnABlMgunzWRbXvnu7PPvSzyUdpWEOjtZfzR9Ro15Zeale31tNdYMaaiQrQfghI6mt0h9hhMnaGO01qKSnZonNO.jh4VKgqyQtMre0Mc0CUK4fv_1Buw0BEy7VadmVrxDJ5rtm8YnGI5Idufn2FHzCarGiF93cHjVIjaT3NkO.Mnu7.V5kqpXAfKxRQjUggwbudySQHTboflvpE9Ro_qfiUWosgn3kW4bafTAvTpXoOkNV2fm8uDMwalx7c6TRe9rlkDlfEjt7RWjQKPCSKn8749NucWXeNGGYmj0YP76KmzBjzJQ76CLW6RZ823HE2nQqUl4mHaCKOZoMPwTN_4czZicE8VmJHOeB5Gh8XL7vORgE47gzt4dINNyFtfKrlWZ0oHkkHHfr4rWonsvxR3GBgyrObW3ZS.j6OALgPnVXwB822vbdQJFQpzaxpjJOIK2K.L6.JC2shezfW9V2G4ySAgMrMBh4CArR3eA7XGl5draHXbCDBIgSPp_5jBSh681H6whZ1WpL8KmEqLPla2vFrIfQ7Y.RMOvhNR.MhMVZHN1uExJ8dcwC9xifj20tv0_B80lxDykx1MsKUACVcsnPWn7oQqOU.CJZRQKK7WJEpJfaf.vZYCw27Ev71bzfC2pdprq1DYt7sa7ZkwLm1bpPnTPmYGvCTAl72o.FxhDSTdLpxLlbFvEWVoSyBMQfmktEOIsqE4zTkBs29E8aFg3NLbPXuCvhpcc3zzLQg_oByphzkipfEZLNS94aRDxHljuuE.uE.Q.0HBJbwTMarQg9GihUj89vMU49d5NZtQhFHaICSdYRofPEiBvQBUKa3kLsWA7Hgl2KFME94tsNKZE23nS3aluOkc3WpbNHz5TVSRdt5xwB2LrB.lp6toCaBbOQiH2hL8WopBNlK7jjqc1o6CVNvsy916ebR0uWRt4DM_esy7CyCS4QcyKtkxeAN5JEpZdi07ql.3BCsFGwUfD2NGUDZ2HCP42XH5SaznoKAHeaOK2jZyJae6Kjc9jFMKKVt3ui5MTUvCuCuge0p4ATZcivPqzqg91WYVpW8nExSEkgirqs5RYBFpOHtHyhXu9F3pcdPbhvLZF7UBMKl4Z6S1kSfbzNSHqPcK8ZzLAh33W6jr9Edk_aquZnQgjm0JXXkR.lJP0ldfNHNJPLNHyxfjXCEPwx3K4ff2dh94iYwLUel3uSuaK1zQ7XvUTbJdOlg8o3YD5Vwkjr3a.Ah02xiXx.F.YR7BCCo0IXBlggCQkzq9UKo.DZnXplyMUKBnBxU9ILKLUMRTozguuyVam8fPbl2ReqBo7jaOt0S6Me6kAkO00e.3gkqJHjmuv82gNjgP3PMUkORqRNT9l_FAJf3bWMYB6oYFQ4IuI0B2cOM_SphJ1kYZkn9U0Ii.h24q9M6hDjhMhCMRrD4LfDwNTe_bFUUC5AJ9LnMOGKiCiIJE1kYu97BI0w0wDX6EEBrQOMFJNMTrUThCXJ6mhb1i0JcITy3LxbRZFduUmJ4FzYFgmlHEEq.04CYkW7sbwVQiIeNmV0yMszYdFH2Me8YJBzqMFT2bZ.bkVk0iVeDX1XZWXWSl9XS8PDUnQxBGgucpxUBmIEj9NwMBRzz70v7WyLV2sGUKSyhV505OoCtXpn22wcQq5QDbbBQEw9LR70UW71BQc5drRpdQrnT6CGgK1RRVZoKAzLpRpOTuqEIRtM4EM5R_TgMSq9Nj6vo0DrmSwIDhQhRbBR7pZ6gz96My.9ifHmJPN0i7Z51axGleyOd1XgG783E9VhXh8M.oVciDLIPJ68H2kDGlBhK.xDhGieTgJPxQe0wQZsJJCNfQT2C433rgRJR5iSobPsf.6AAcKVz_Yp8WlHJHLWk5n799hkqsLkZ5Yjx72MbJBw9xuPRqPI2a88i1gnd5bckemRjUUhiZGDfAjWbGihy782qP95sYyqu1.aYKblxU0D7wWpeLz.H0Rq9VqtCiXBClVkddzLEgYCD0XSpPYt8Rm5VaAUQ9e_q",mdrd: "JcVTrxjAcowsNCjS1tMZ06FNuo8BMzpkz8Fy3uH7rQI-1739147975-1.2.1.1-3vRtEi3hZKhlKkAOD33JeqslIxTSkC_c061po1WlKPJqKuGKQqRpqBgaP27PoZ.IAVO9wDft.jbizaGrCjq1rnZ3xoDT1CXggvO5JL4dehUyZOtX9TlhecQm9cjhBEYJ1kMuJd12EccC_mSpRJWzPp4kWAgAUgEyK3tk_0Axt45t1x4uihWRgbXe1SLmKovGiTJwoEQTOcmK4NhPh0jMuNDXTWoaJRtiT9xP8vc8x3rS.TjqJXgZ8PZ1eWsJfY_zUT4HBjOeZG3FbbfojW0gXQo3w4UohN9i_9NxBUbrYaD5vkzBnLBOY6kWiqYHR1Ahod5bsBioSUIb81xFASOzR4FwBO91pl8WrkZxWL_p6ueiOCfUdZUg0nyEHLT12oW1r_FEE0Z2oHACNZKFi.7eKdnYVFbTQ0yivthnSj.RsvG2CHpH3AP534IvDayyO4kT8S83cwZRJBLi0q7J2b_u7qWeOtkSv3XPEgkqtd_CEO0IsJp968y4ktES_XqqXHpCR3w_KPcP3._mfx0PNfvMeof3mPX35Og0SfMmEx582Q4bikKBTcbHSZVGX1nuIxvKvu8tZaSG5H8G3a122aRjMdsFWdcL_EAjW6PAfdscLFIHOeYwqqe16MzMHX4tgM80PoFA8k2DzJzXSUZWXaImX4YcTdrPTJUySRkiCeMd9iJwVYfSwVwG8yX1HmsxgNLLxDR.nekVZn3Jr.Amj5ewL.atjHB.OlkIaxY06HbmhmLzhI3Djej5WDvow7RNWHN0.uC6tEGLXdKmP8MPEM4F6a4YvDUfIp9Y92urjxKXMVW.LqZaD6hTpbh4SNZ2YR9XEyetyDW9CwCLHIHbEqRLmIfIi1athC3PJ8mu9Myn3PL2Dp4bRZTQk4OVbDD3iDvuxCMmBbrHEK.O60dLY5K3k.Uz9ekJy3Kxj973AZcGhJjb2pAqTkk7NjLAxJMYADgYKnyLE1TtY.7Q1s.BXyvgZGqykDCy_PuRPVOSfXACQkKj0sk6pf2dmeTFw_ynI4b4QlzmtPLSCHlJLNHZkg3XP6kqgiYinJOKkFwlkl.CVrIu7wDCSygB3blnvzEILtRQO23WdMwSA38ye9R6a5M_DOuOX8p4X9c2OizTBp4TxtO4Tj3Xj92hLj7OZLvftx902FmmuVFmQAMxX_qVBjjHM_lKmowt5J8DL_v_bhjZS72zUf.nvhIgrM6DpaA7V8vfn8oZZgd5ZzFU6F1vYsaYuET7YS6fHFB8E4bisq8J8eweht.LjHZbK0Zbv8IHdAbEKFdcRi5Y4euVunxdsaorSQsIQKFPgj6I69wmlMuugbP92va6JkJ80suTvfqNLR6E55a1kPpQj8CiD7jV8dIiBnrupjZBGOu_YaaspSNErT9VUoetkIrz0p_PH3GBpPJT_XPljKGgqTrdN76KbDZhq.TO_nAx.5kfKhChh7zadWdmTzOId3bIEmg5CjVGjdeEHEg8gM0kg5rHolyTCS9rPd4YKKN9huuoNAcwE1T1D_s19dkMe4zh0Pef0KYaLn0oMLdDboau1R3ssgOA0nE8y57yjfxoRSxfZy1E5Qdif11ojfxGf1tTZ4IxxwbtnrZB3RbCW8eBSgrRkJc7EXXgARSYQIJ8dgcAopGY6cjeoV0hzAkoCUcHbUOzBMB_LrWYofg4LJJCnzU9lIcSqfaoe7KQ614L._eIFFBXIV9IpVMbKA9dWQaXj7LNgl0APINgc0f1ILbDOM5goE9HDvN4gTsfhelq9SWy44AHda2RhkhDvlld6aCN3DDr2uZZJZvtiY4wQx53D8BpTLuqGpxdqTje0z8uQmC13BW5olic.HQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f80b017ed0176e';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\/6178402953?__cf_chl_rt_tk=PHNMoO1RisC_vEvT3UdXRPwrXtO_d1RxJNA0dpcFUsU-1739147975-1.0.1.1-6dVRIPVB8DSxRiu.bHY66zuagzHDSwyUDU0OJf3fRcs" + 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