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-776426478416.mit-edu.top",cType: 'managed',cRay: '90f430c20be47fb2',cH: '6DwNKM5lLvKmYyCRsM.DobUzz7ueHLDd_STjL1If.cU-1739107579-1.2.1.1-uz.g6.P9bLBTR8Xbf0DangknzxKSnjvtnudnyRGElaNgD_.PHytqYlUs28g32qja',cUPMDTk: "\/post\/1465370892?__cf_chl_tk=atvuCCYk_WNBeQdpWx_XoCfaYYMNdPbbGncI8BoeB70-1739107579-1.0.1.1-eaZpICTGIgvtUt9DbUj250FYFTlVeDpEtsZIc5.kiLA",cFPWv: 'g',cITimeS: '1739107579',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1465370892?__cf_chl_f_tk=atvuCCYk_WNBeQdpWx_XoCfaYYMNdPbbGncI8BoeB70-1739107579-1.0.1.1-eaZpICTGIgvtUt9DbUj250FYFTlVeDpEtsZIc5.kiLA",md: "hwBxa3gn43CZXbOxq5Vfu0UcH7ugGKxvJm1OrySNvzU-1739107579-1.2.1.1-gcFvbDdKHgyQElhaDeLZgE6jz0YWP2JEFmEbTKJuB5oFr2d3zJJEC.xf5uNQS9uxDNpb2_UbOANkwOd5yVNLasGarm9bq4cdeXSAN0BUN5bVgVQ_tVZxbfOpdFWFy8ts_.B2RW4AEVn1MkMUF9a.8myJUf_295XuJjd3iqy43.bPDQmf.4HDMauCACKe0GKNsCwoelg0yxOUY8_h_TK5vWUd0JsIbEnxA.MYxbbKCecKe1j2.RM4UuuqkkmMR7lsYYeS8lhQ9a.DXRlDrjLqsdJvflIIu.tSnaAxBw8ztsWX51m3ZSyPeltSRio24RZuh5B2cBbOghYPSNwYDg_AHc4LxQttKVzaPUmUYVzu4lbD1._zmG_lIsTNqRyzSOXDNxOgs9IRYi6OqgsL3XyXdDRNk_aviY1QrQ3wsGSNqm5ZSrcIebIIMvj1wMyl1ZxyTcVkWDDkoAy5KWGqHFY0b8sT1iFl1VB1osAD6EvY7xTTu4VeiEMeFJ_rdt9eI9nrZbk24TBDM6AXFf0.IeRqXapGh13HOoSvy0DSKZpqyQK7dMBsX10UUEkSRCz5YRprYMxJyCDPXFUDU_.tyWuHIRdDQIZ9hm9Vcya3.K1.EjwnwYLY5TtasdIzq2vkrgZzUPb7xWHKkP6O1AhcIBiw8ybAA76aAMMxOuyMYqJ9KeUW1r9sfxR00FTIFnCzKbA4qnENBes9lEbZIeLGBuqUxJes9skinmhHmCPZDLobOa9uHDZ4CwU_o5UQz1UXKQFQMj6xxendEWrMGrUshKd1QhTeQevBh8jM3dPkEURjY2GqAxQHDmTJlYdvjQ5iwRoVF6ptc93exZ5sLa8jexnVGbMsN2n5wFkC7V8HXPkyrHuI3mM0IoSNOMFc7QhgM0_AclH8.aaAInTh1ITUJCByb8olG.a9S9hsHj9VlNIbptYseLEJUdWuqtd2LgYBY8pgrI961foStMLmUFBdrCe.YSbaliHWwUsYIvahHmYP7HBYPQveogX_R2zwpDOpvpE4jRhxZxfS6iHvE6.rMJhg10tJkDtcLYTE1HZ2UU_JcpZpKA6Qd9JzUrwqLOmMXRti4_N_JB5vEGt_R2cl6yVeQY6SN8XiPODJqV_YnjQLcG8ZjGzfwBP.nL3pZIiGkVAYEw4pJ_RQUyvgGgI6oHCzWPnelticME3DtEJX..ekZEoF4TP6_mJ_Fvp6C7O9SjJkQuIlbCEPJYvjhjBJ9M9h23O_DnsdJgd3pejIERULSMwVIh0pnQfr1qvwD.x9kBc3NemcqyGxV1CFWkQ7HWN65Izh2WyKx2FWsAM8IsrYHISb1vFduGTtMc9_kmkFwBuV08E4Lvzpl14J78K4KqRcnCjiqiLZWwP2a56OApSt5n3_3t9OQJfKYxwh8yMPxKebsutt0XoUoZc6zzTt22woynXBmYs.IeHR61Cl3zLqIXdafVBS98eHE6RLdmBlAVwtZ7Cafnq5meNdndTkel.0acB_zqh2iOREyMlMd.OJNUcZtl2m6kU0faErHGqIiY5JXOcFUKBtRLdnEPKRrhpTL_MtUfiBkzMXTrQvLbFtyvZdi0f2.pp5B1Wq0Cm4LFT8zGGWJM2QUo9kwneKNmpOlEkradBs2ACKqWmWBmdj5mHWM2M..NYPHTSmxrriD43hR.7.FyR.3LHLn.M3R1HDOMtktQWJmEyeoIgu2ItAUQwEH_6JiIMwGzkBQSG4m87Vb7SNpIb_AtNVceGlIHJ36_f3bZyuD8da_JOGPy8qCx9W7KBuRsgA1sg44GRUoW5E505fE3Ej8QoT.sUq2i.GutUEsG2Ut.ZhWuxTU9e0CsPDzGDp86fZe85F8L1P4XIZ_bp20zZKtFjAgm6TK0LtPQwbv5jRBgXHXftWvj87lZzMYU7ZpL0itQJSD9k4np1VBmEdnDx3zIXns791DXddUf.vA.pzfPds0rEWV6XYQkGgBOWQQOHaz5URJca5EnupNQ3rq.IktZ95yEXKppCkc3c7OO.JUsvK4KOHoVu0sTcCtB7i7rW4q24Aa_sjkpjrNZgODtzADiPfDUncDQmapOjTLR1cvHaiLhzJcQbzdnWd9TAxcdtlS5xZ.B3FTpAVQpCm2GyHB6m5CVkm3oB0GjI43sjK18otAIPPVGqrWrG63.veSvz63SWO8sYsoY3KNBHgyC7BHcvNe.cLgnF1UcrQ8v3dSzatcw3QI0kQkLPw6QPZD0tqHxWDsmUE6S.7",mdrd: "XZ9H4cDnu3N8OgpOOqlx.60wws3_koTzevGc4IuNFLs-1739107579-1.2.1.1-mK5upNvJ3dEEj_UqXaiqSyKOLgZW1eURlI1To8QLB5JZTny0zbCgFzsBIFhVrxXopIveN1vEtKiyZoGbINv1H9cYe2kvQXP3cRnRjnG5FnmPNjQIt7ufJfZRkfXQBm08EDUzqe8Xit_MHuANkdTFZShgN25vAOeYSW4INNFN_as7KiJ68_h2Z7K0Hccw4hj7gLp5hxGqiSvy2yJsaEyaidjuGZ6KnxkinI7t.OiVcOXODAd6G49vj4MC2fN0jdCCSoWIJLeESIODqxYMN3Qcgn9i_JXMSuWeslmLKDkhEcBPkrtmsGohqGOULVCUj0Bij3lS7LA0AxM3HCoK3zgRxrZ6_oVZWi.MguHmlGEUyifHgSC6n3is_5zMRwz1t.U6977rMFNdMb.K3scX2f1jBllHefWY8Bd5HE5hUaxi_oDIuCMllNliua8I9oMlRVxaqgvnUqTv_clf44Ohppcsn6zaj9O2WClbvTxs_hRsGtbbF6OZjl7nsID.fDtAspxLNjOGKiMjhZZzOYSGdOwhBBZ5O0kDX2jeBIXkkeBVKrEH0uAPMWe7ZK7oiSp1_8Aw7wNFAx1jnHh8obrYO80fCfZIHYNJaAIBZ75NeObsM1zYMPAN_6fSSMHJC636alHIBnUrcwddL.m3IW0FP4UYJk3JTzS2bwDSWqeol39XvN__1sxK82ZBv95rEEhNaKt9VTnReKkFOKL9fJ27kkijVvDCaJHXhof31u.nmPIYG7g.cyekAQF8dvcM0cVH9YWp333A2__VJNUYZPZ55huOqDPtkhiRGhoAHewotVBmm4V65xzgOVUj9F699_GKueTvMbOugoV80Ctq1oDvwpCFHgPq62dMdKRzRnhrByo4jGNClCLcphgXwb7dvdq2YWgCMbyhN8dERVguV1TLuIQrYpDzpmMlxmwvS67NwSRxmcUpi1iXJPwE8M6sGLvf_DEAnTp5YgzhzlbDRkb5N0lZez6Vy8UHhSa9ljjK0bA6iSx8Evc7aCdBOAy1fT0t9bDbr2MBqZb9b5D68wgOJZ63b53fc.CEa28Ir_gKjzvJV5Dz22mreWY9osGSrt7mvMYF14RQaJ6uC3dnOED5MAYl.ghDA0vhqy7BiYI49Ot47yA_xMTycTigcJjbPwSJFYcR_OnPRG16lENlsUYwP7eyBUjtyvH2z5LxfUeUa8wFxAkqD5p0k89YUdkNksfC2rn9wDwjmW_Bb8PQLCuj91hzfRCURBv8zF9iWe2JwfhY5yyxFcG9AA08h_S5OlEljnEBAtcLXKZxb4t3A8kwhAUVVULXv04jKSFpt.vw4Onom7nrOVEw9VhotyRL86i2rBhhEUBd7RMWAL7AtILz7bJuz4DCqHsXtFNCbVLbnAc7FoSHipGzrziO6lyuCReZ9JBgC1Tk8ezRzms86Jty714FJeQSMxFfHLA_fS0wYFgDU5ItBiF4ONFfg.PeufqX67IRXzfAkUL.55TKesIYmx3HvuU15vRbylzcP6kUCSUliulmWMBXm4OnuC2LNShJEufx5Mq.xMTrKmoyAEn8mmHwOQ0DL29UBdAkUMg8oommGUo.djsOy56zWDedWHN8YGvB9VHo7ctCCyUFymJS6B19kQNxULVSvNV27Wamq5rRZvHxxSfRh2W7Q1lou1FOPGj1P7W27flyqU7NQtsATkPXjppsuslCil7Vu06feQ4lZGJGQtb43onvZuNLu1yZjsH0zpn_m4RL6HWzKr_fs33Rk2oFG3EjWLPf7JFPXurW5Ko.6FWTqHb84v3ziczv53hfdKqhBcQwUnWCwawNs2gcUCxZKfykjNqW1VDarQr7LMs"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f430c20be47fb2';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\/1465370892?__cf_chl_rt_tk=atvuCCYk_WNBeQdpWx_XoCfaYYMNdPbbGncI8BoeB70-1739107579-1.0.1.1-eaZpICTGIgvtUt9DbUj250FYFTlVeDpEtsZIc5.kiLA" + 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