for Atom and RSS and KML
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.
<!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-029713835642.mit-edu.top",cType: 'managed',cRay: '90f7c3dc4862c9bd',cH: 'ld2vczLJJB7SzUjHXBD_5ikSIxLKVbDzvcmBVbaPDnE-1739145061-1.2.1.1-6HSF10tFLjB17HZ8TrBKo1MhKtj8WTHeU5kUGpzb3unbHymWUlr.0UwVjzvIfE2v',cUPMDTk: "\/post\/4708531962?__cf_chl_tk=Fhby.LLdm9yL1Ih.0Vtu_CJ8H92quA5o6neI707M2Lc-1739145061-1.0.1.1-Xq6t1fHVjHq_UKTUQ6SSWS2aYxcwTNr0o_.ymR.Cvps",cFPWv: 'g',cITimeS: '1739145061',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4708531962?__cf_chl_f_tk=Fhby.LLdm9yL1Ih.0Vtu_CJ8H92quA5o6neI707M2Lc-1739145061-1.0.1.1-Xq6t1fHVjHq_UKTUQ6SSWS2aYxcwTNr0o_.ymR.Cvps",md: "Ed8knQIdmgNraj6WgXlxsIMk26Y96MUNY54im485CC8-1739145061-1.2.1.1-bk0RJXNNzkL6e32KCytnUjZqFqRgYwTDHLi33W02igKrbLCfSaSs_LxuCXSFk1m7481d_7pf3S3yHBDfrf8LP5ao8jgy352Txisuelr0wi54dRG_zC61pXtHprx6Jok6pP5wVXaoTvnstnKMxPaljcVi1TGUrNeGROdpT8YsvYXLjjXXb1RxjrJF1vzSx6vzrZcK1vBPVyLjiBCWukgz0ecJ96QHjERLVEDFfe9QcM6e.tjiCrPlAUuojmktBEBFm52VyjMOwefz8nDcKLgGonnHNXUGqf0Z0Y1Yh.kd2zvw8DaZYszmyt0gmt_.xFhXlGSGxl1k3ipWXcKwnG_RoYQGTcAcUvEhNPyUvRoAOEwRQPFfeLbdeuns3J.R4nZ.uw5XsooeYWBxsYrJXWam2nV0AjcAyjegnLizZs06t02xNBZh.zFGiA5YCqy1V_p.u.1lHPst2eUlqY6sLCBieWFFjZ0_mQmoftC9rTcofm0DwCfer7jRO8HWP0J8ZIJwxkV9.Tf3i6t4lMUo105gtbIh6pGbos8cZWQWt_0wmBNxQdVFwT1Xhvc5tbAMqLQc9Guhjql_E_2CP1JM5i_sj1j91s96x95EXDD47sVhlT7nBWITGQSFfEiJ7A8jmqUROriOzXHH5itGspNCkgUoi3XM4AE2KDe7FtWB3qyNIohcxCpHhclEe3M6J3LeW9tPis6b2tFtt_uaduVcX1AaMSzl2aOBEGNESEvYqFWKRWlBO8H_ibSTco5dRH9Ae7uqazhPGmD.PZlG8SJU2VEh9Jq_LxP93NxVnYpL8JSUBZSJ2iF4KhCfJlY2eRtyxJZh_DqMGPvODtxXmqZUCBRUrKFeidVqF4xBBPJckzfgMDsMiFlR8lyf6eHWvqmbDCIU9i6Vhr0Yn06bwJsCzJDUO3gdIQJjqX9AYeqqIUKzYiY.Oo2zEGSI5SBcDaeDnfaK7mFyfRLtutaP48p5qljW565W4Zl87j965rWK1pSgtqm4gHGx43RUqJVdqVwAIufMPDTzUJPwMiu2D4gjMSAht08M2t2b5wv.a_BqUrtzQg1wn_SZdRz6X2kX8GpklrkbGlYTUqts7MovA84FhPFNE_g34C7Fl41AXGP3qRzHsK8WKrBp8Tp4EnnQ2bhBOOWiSGLlzqJVAiwImCLcCCH5jbUsphtd1dmBmn8bQrC3CIqcTqBEcLsOOxD..v8w582wAJkINeoLrdEwL_bDwgJxa_zkz8nMZQ0nssZveEIO0NxmC1PM0_azG4U7fBlQiarWHhpGx11NTzQAJ.fLU9H3JAYDJVn44olTFiYxtzFHzmm_sXf7x.UJOdztyTfYdbNxUsDz24_kG6VUpk05Alqg_ygYhJNRcA6MsREK60dyETSRpjGPyx7FIr2AZiYRCij6QVcBRgJT3azol0WteA7uXMgfsw5OWdsWzw4DgyZ3q6napmJ90McxVU_5SqD32JfkSvdp8FyYP9DQkrA8ghzmAZvnYMih0biMxIkjvZUmHw0nT_72XPyEDfJpgVstVtxmHhoU4oWfEZFw5wzdcJKQFll0.VitPC38EhayyO.HEr14Ckf99EuDpRBxwne0nBL81tS3jVhTQvrd_QUu0bBXX.BbuWtaYuW6wGqYZwLvggt9eYUgZIVJhYuirEUiGEMKVauuVlx0e2_HmoOygsYb_EjF82NN43bT9WNGhxO0HXZ9nwYlJLXtXU1r4GWVdz4BWDSQh.Rf6zW6_dqv0K0uP0ZTntWtwrBZQarZKTlgNxdLmHtccnoeVD.yDJ1RKaGSuoXjs86m28mFwVbShtSHoGPU_zskumHhOAb8KVnBiHCADMHDRbgTow9FB4LXCGmRTaIKt5oifsrirqeLvQurZ36d96aVrX3XUrKkQz8wGEhFipnbeNAmm3pk16iudyQYsgSifHYZPINUfCcBR7KA.o83qvVlXWk0XpBxRcs7x3SHFZwu9HWfEJrz_TYhBeDzbHjFy6ieDqfNgoa4cgE_u8boABqi1OEMrJjsdTgH3jsdGcsxRV4C970bWsOAOrzq4ZGTyZn0IOEVYlLx1cajt8ng_jHXCYtY.xAiesiX5KMFlA3kt1rIiUj8QuH1l.ODLBtkyywYzl1X6tMQxCfv.pUpae8HYKKTCDq6Di2KdO2bMFhK5bBXLzv1VF917PkLnu3ImQVeruPKd5vDaRWnh7EV1dTQz2WqtnwplMOlhKXT2DM_PgK9Qp0ZyUcSvL1Z",mdrd: "cAZIEsGV2Y4jqs2U7mOTzzKskoCLGdaIx.M7vPVupjQ-1739145061-1.2.1.1-NtGEgO.gavJgrnGKj0wbwfLWl6OzmqaSERSiMOsFCwlSyAb0qAd8Xp8fBcSga5vXUA3Li6_q6Q1cywB648BYqBsbF7SILwdFy.Tw5WdyLHLaLyiCZc.GbK8FK0TNGGbKolhkd9wcgUbdyT8dCPe9XciLaLtwL6BKlPNkG2jcBRBwSo0mKhc2e2JF.eeJReB8ihjzj0j_GbQ8_sOqEr.gaLC.8qIteARH6LBd2lFXD61MtiEcjRbgGMEr6pIG9Utq5JgqBvZ9kqfMjSqY2L5MLsjq6haowxmdh9nR2IT4NC4Jr4L.HDHxjX6.qKsRURV7NZLyc7ffQ3jJIO8o9y6wuUYvr6_hn2_124S6XUKKtz5svZ07HgashrbHugbN0SNQylfGSQCyh0.NH3rAKo9exRywL9_1LC1x2NmnP1UV7lEDdHc5oaMPp_8JGSCM_ZLz7pgz2_hzz.EA717RxqJS.Db09NDlP9z29dUoe9xl547n8gpXWHbVv_dX1FAsPvxMIBJB4jEXyzdyrUCYHB1Ii1DtkW1LPqBiumJtsEXQUE8zpm79k8hGiKR2fRIzBJMS6jXCesYPqQoF_LSXkWNcaa1s7eKNHtrEodDvulh18Pld7JlSZHgVNLBgCu0dvMOU99B2gg7ADSRpxt4DiIW99YmKpRE.cWCQts.YUbItLj7L3LFtMY0R_Mdpx0rhS_XLdykNBBKnJutebB_FnifODrRpxKsn3tTDmDBFAfoN5KxosNkx5mwr14xwEdXnAq9_unWalYP96NboO1ZwvMi3w8IVOxYvJ02yx1T8uAp1HK.y8xBuMlIsPUrNWS8qTCbwo.d4BZt_ynNEEIocyqzdVR5Sk9AsIDXQ1opx1p4Xy0cMYmiFIE7y07MwmwNuoSup4j0SL8WyqevAo2zJ0SXVLOVIL027OlmDEij.HsG6p.KkzzEt8jaFUy22RiCflIeHsWFQMnpqqD8jH2xTLN9H89jxowB4nZQTNADe3MWdnb4atDgMCxZGIiG7FTzrIy2rC_mrt4kWnnFauqMIhmbxIR64KIWsdOQsxLQJgW0sq9uc1.zENCuk6dXN53dB.3mLgCNiiofr4LUvK32pkcys5VLOgA_RPTIGADG7SUY6wagIOmjA5SK99vK7UggXYI1soxEBPCmjpqIAug9r8rPEuWImdW_SDlyS.i6VfMxh55F.XVj9hiiXdK_EgulVLCOldeT8vgwYuIPFyFnqMiHO67GKrtgWJdsPA7YRH0E58nWU62tqhrzYNSzpUCFqeRQb1OKakv5tBMCYb5EQhIg0nF1m7yssvVxzD5DnQs0E6HEKSGCS4M7Jhziw9l8N367LWx__qY237XmFIQhtJusnvB5hivr_GYOXl7Lwb51d4QRxr0sntTJn1xErSqN4fnSU7VvlLUc5Fl.gqJ02ax6CyrOzE0qJqDBuwiwxs.OjFM7cF6fVj4rGty5ca6WSdpsYfpQOXy45x1fAD1PxjcNXKDGZzQGmh396jJPnHmKdK8zObSfhnicoXt8BSrV9p2.HXxluftm6ZheArIBPR0VrGRSbdLEQ8To_RKsFj7rzfZUwjNgUUuXtXVbT5IjmbUlb0T1Oj5S.bmkUmWWUn20mSFSeRy7W.lwYuZh5E.CrVCH2CifTdsR3zJ8YdYFHFX.On7mfc8CqsVE5iNY65l5j3sDvMmZdiP22Vzcr25JcAQPmw56o0b2vydBHSnlaYXlxGkmnjH1O2rsQiYKr4WFHK2KCifcsjFy1gTREdNPvwOngcK9VreOiiKgICEE7HCphmZ9CReiUCNkrEEy9g1.6kW7mKJ6_4eEZWz5WK98stjc"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7c3dc4862c9bd';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\/4708531962?__cf_chl_rt_tk=Fhby.LLdm9yL1Ih.0Vtu_CJ8H92quA5o6neI707M2Lc-1739145061-1.0.1.1-Xq6t1fHVjHq_UKTUQ6SSWS2aYxcwTNr0o_.ymR.Cvps" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms
