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-741681546851.mit-edu.top",cType: 'managed',cRay: '90fafa6a0b253952',cH: 'TLyBl7Zzq9ZNX5LOBxSOpaLlUuBRvOoXDNl65PyYeyM-1739178753-1.2.1.1-BpKeB3eUy73mukJHpM6n_PPSRrKZ0nu7KlP0BN5zIBYzZgyOcMQYfblKE7CRvd5F',cUPMDTk: "\/post\/2759416038?__cf_chl_tk=uLn6aBOb_UpaOHDO_C_izKiEILIfgXPsekSiaE_Szkc-1739178753-1.0.1.1-pV0hjQgFBUNOSdukSxD3w_iE75vmoSgWtKROQmLoegc",cFPWv: 'g',cITimeS: '1739178753',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2759416038?__cf_chl_f_tk=uLn6aBOb_UpaOHDO_C_izKiEILIfgXPsekSiaE_Szkc-1739178753-1.0.1.1-pV0hjQgFBUNOSdukSxD3w_iE75vmoSgWtKROQmLoegc",md: "wPBUbAR2OBy1aBFlillBkuMnT5rApxai6aoWEsFHuOQ-1739178753-1.2.1.1-DRwBk_2fGvsRr.kM6DmldO.PMNsmLToquzvaaoCepd24TpQqrEJ8hGhRoCaQiVxp_fx7bvOStj23Ul2RN3IEA7LlEgrN70Ah2HNrDq8cN2ic.89GZKQADWHc0gUGcYBdlhWKw2fThakjNg23PeAVPGtmeXjR9zd.la7wYx85WzCAWtCDerHAlrYl8Wxnwp6k.C8xqdmbTfEKwGO3GB4JwkuTHnL9.He8okN3zvrhi8UBHGFGKx1WeGjdDCydJxW.fqwG_nLbSE7LoWAht7Ooz1th1crdrFQgSU0lF_BVBcWkpL_I6.Y.esylxy4lzI2UlnI7F8I00wCPpTHS2X_a1DPzdRGxW2HO5dWVZ0GhcKdW4y6IJSfIoqlYbqmJd1oWvCFmKp8BdqTznhdTp4opLqiP.J5ABPiqzwtfDyMxC0p1rgvwhkFZcNipTOdmEAJjai78zI1AYU5fsvB4F7jtpioo2IhW9829HZ97c7H6_WutugVeXCIYOrrV44ySJqjRzcWKgRz6ywuBt.cPBCINGNzI9VAveDbw._WGnP3f42h3_0VPVHSnL5U98LwCFJ16xaYFFf8hLj9bHFLFDqYO_WlfKSAO7unVdYbUyzEMOnVEAyL0eiikb_0krvGPDn4KHDvm0vmKbpz9WwZm5Swvff9Iwg5USbsQgmHGKfZ0QtCajDykC.LZV2i72wogdRLwusN7R48Hi6hWxKci_bQ9csWilvzNNRnY4KdrnkT3NRBsG5jMrrRuBd2WoelAftKXp5rKQG0nA5y0DHUzMIyN5NcW4kk.urQ4cAhywUNdtQ4T_V3LgDm8FohXupkcTW6KKSJ1Gn34b34ek0uPwMHm8d1.uVCl7H7mQA3U3asdqze1BRmTAx.KBKkiH_iNNfGJQomkCmsnp30h48w3zoGYik9m4NjE9.u7IdTvmP_NHTkSRlFFWlHA91Cu1y0YyWbXwHSOtP7anmik4ex6DCqnpCbWQ57I_ViBHnXQdsVk55GQY.t.lftrL7MFel3pVy3KPyy1BCG4SRHJ6L5NtCFirn4AHdaNoQzcS.VJ_7MPh2rgZjCfH7nvxRzF7_Pdega5eChXsCzjbtl7FHXMf1LLpGbgveQ9vUgB4B7igeeElUzIuGdPqJB5BKx0vapfMwsU6CtpZeJUPswG4JnkrjwV635GUb6TQ5aRa4KMOKlD1srAk6bYZPpYmoUr9ltIYxAfQjJshKKieH0v7KlKAtBCIltOkS45Hvh4nWnNSCUD5VWUtiWrIYnKCOTfbALqdpM6aAZNxDHwe3seOulfm5S2cjsQW0te_6jIyJINlgevpn7U9wBkKmLfOc2gY9kWf8g0BaLiMRf93Q7v_AtG5HY88dcsE2oMPiBeMQXYIlwqUnnQGuFO6ktXbG44vnWSzQ7gJGCTNujJheEXoNXEkrXqGu2hxC1Xv8i7pzlb377YOwuOZoXQZYMOD3U.UfTqs1_ry6fRblyTRift3idsBrBDoxvq6RoR39KMeTw7utVZw6ZgYJ.SsFRaM3kFPHBIiNPeA3Lxf7TL6NdU8R8HjhU7.58MyoqSHhL5yeLXzK0pcl3vzUXrUqPki5BqcUtwMUxM9isvHFnmZYKEBbs1DDTe5MfiJVrYYfXTlStFFx6ILp2NLreLM1RL3IVCa0bL73TFtqVKi.Mmr_Yeg.BYEo1nmknrOUzgo_euEmavSChj.CyyKCqlk8u0GAKxAg6ilZdO1n2w_g.aprlhhQTtVpcPpMm.45GhiWev9_y3._qKfPXtfCAHMmm9ZEz_MVzqQgVIousja74bVchQY9DvAM0eSGbxKWLIQJxfEq5AqffO2G.ZdWLuukvSXNa5Zd7HCWfyRmojfqY6HN3CiwxYZk6YgTguHTl41rxMZJFnUlhv7X_OPSvGBGaG2Td9QVWhAxzd2qK7oEKHkXVJEoHC0eFtm.RBywLTrQnNKsXsE94kDol4CToEbsgFTWC53p9iiw7FGfhZ2MW5dbD30fx0EB9elJ7K8WdoV7WnwoxQBy7UrV2DqotbW67SdXhPIQeiiW4X.au.FFg7tTadkWsweiUM1RTB5cQb2EIAEZ1EuKLBdb41fY8ao3NYb8h6CrYdN83RKvzOfqickGLYUU9OCYbCL6QbjgY_bpqO6wUkKv2FaN90qvgwT1YvzdVQPjfpXwjxE8Wn2g_SeuxJNtlMfDxQw_QBmoeDf21QkOF.fNXLFrzSPNC0sKHSI3Bx8rBx3ozB",mdrd: "6EV7jj8SJ8Ba2pp43s8ppRDWG9CzClTONTkRZXUXSw0-1739178753-1.2.1.1-vN7W5UreL1yuKWgzVEL_.040uIAxQXBzJ91BZHhvrm1xHctUyMCvDrcWAmU0ZdYXHAgEEZvQOwNLNV0WT5ldPcbdbQBsRcJxyWPJifqXi7xbBqIL9bdrDT.X67IrGvUfrzT0p2HFpmv2Z5VTTu9hmgAP_RXXUcVdlhfRqHXOXL1whgWI25Y8k1M3Cut7rzIVC9RpOClZQqCQ.jDhAKuhk6RJz2HuBsT_BqXj2nRQREb8XaWDMUo1MTu.9V4c3JjlqAtxnc39FonVMVePnzT0IFUaR6b4VSvnDKg_qLrITzUKuGzqQNe30dnAvMjUKF4AVe2mQbOdBpnQPaQI9GytRsNhHHgZ7_UiuoT3aBbuqwNlyHZmC1BM2zIqVJH1GwLfUW5N_ScrRnwefAInwkpw4Y2cUQmf15A_X3JJxGCfE5_Pns0dytbbuF6WfvJfH6tOhJ6ZXGupN4pI1XEs2pBsb_pDTDOYyAfcorJzWRsOgE6pMF29pkFrZ0UBNbc3iLq3EcvBhvBeVmV1WpXbvi3SjaUWrKuiATfQCq1cZRdnpTHO8jBRvQzE.cP3YPGbIXVVhR5Ken5lr1gy65O_CNmslQ0G8jb3Uo7g1ckPs4XMRk_aiesVm7FuoWdA8NmIyoicaun5gHEQUQ.bCX4XtdfKhvior9kwmFo4xRdwIO5BlCWe0vWhCsFy9Sfqt6xWZS372OMZJGTtGmqVsY8P.f2s1UkbWkyJOk_jsm.SDW.gdtAuP313X0PmnhBAqY_qDqskuMWnWfEl6OEVQV_WE.CCW0WyefPAA8Hhn2OaYgxm4DHH4kYL1J9E7nGTCrfSPv5fQQzP87LqSkAeT3pa2awV0HAsBYKzu7Upc5r2ylzxjgAncN8YrHXkqOFBXshZTiNI1dK1JCIY.ev7NGqXXUSf7.OKvcui0_1ttgINPvfR483dP651uBWsUH8y4uSL..1LBy.fq7UB1p.OFDQzYyHI4iTIEYlWN6NEV4XjFXHoFkVILT6ONIZCheEisSFuRKDIVc7iso8LZ3Mmw0aCAy1D8LG9mbvtMFaZ6DyhB6Z2x6kn6kWOxtH5jSlReQDEzSfruydOtUvoynPzahZEKS0PQtDpIkFvGjuqpcb2fkjWLXDNp4CoFDru7gwwyVzThgz3S4MV8nb93Q6ZetzDhRaOT_3NusLLvwa1TPILu2TRD8niWFAONTqzxpDTwc2yEA412wDIL.aOm95FWKDJargDDfhwcsEhd2kg_ilTnYmEBs.GCxcppclNDvHde0lrbdY4JypGukGw72xiWazi7wIrCWUOURNPMQkmkTkyFS3I6ZniV00MOEFNkgKqB2FbLDIWlS4M3l7vpo95qFatnpK0yzhVxTxpgHAKKcEbEQbRrvYeZGlDvRF6JNvFdXCuCiG9V33dU2giWLuGfXEygUoPYf92KcDbXGGhWpQqnOOB0i_U14mO56V3e9200n5Mkj8xNFFTkJVH8IiBCK5Q68l1a_ZD_5Yc86DaLRdsZ3n12cTL6J23ZLtPhQZZPkCj0MmIkqz8OTK.I0xwSA90CIYscocG4SOHxvbzx.MVYW2QiqIN7fQoTZSFrMf9SASt2GtuUAXWwAwG14B4e3zkay.t7U8nFvocQzi21SLxmM6MwNjprmZilCNjmOnkYN.3PispSNqJALYPi9.5YV8BuQHJg2.a_rnjSenCt5BpiQmPkzfacqBypSZuOWzZEjiFOLcisH6.mtdzToAd7doNAZbEO3o4Z5Z3RUXuIGHQ.zu4mv4KhA.A5J_mmN8Ja1arQ6CUX8CgjzZKXdB8oBiu1c7LKDR9aV1w7Hk8JBO5QDERMUA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fafa6a0b253952';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\/2759416038?__cf_chl_rt_tk=uLn6aBOb_UpaOHDO_C_izKiEILIfgXPsekSiaE_Szkc-1739178753-1.0.1.1-pV0hjQgFBUNOSdukSxD3w_iE75vmoSgWtKROQmLoegc" + 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