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-219957054186.mit-edu.top",cType: 'managed',cRay: '90f6a3738937398b',cH: '4ipcdl.U4f4.TIOz8.W6ScCMP4oSkzSn20lXMINZ8MI-1739133248-1.2.1.1-IKfgas8EyU2_EqCzPKoCP.RHV4Y6LzI0QCoNk6fGMTohyX0pwUWM7HyJi5kQ1ysz',cUPMDTk: "\/post\/4673092518?__cf_chl_tk=P1kZ3OXIU8u5PrhdgxOhRHHrv1gfJfYIqcZuOXGtR0U-1739133248-1.0.1.1-tOl1fnFlHKugU8q7Lq_C17Vi7Qv2RMwoTbLRNgotb_0",cFPWv: 'g',cITimeS: '1739133248',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4673092518?__cf_chl_f_tk=P1kZ3OXIU8u5PrhdgxOhRHHrv1gfJfYIqcZuOXGtR0U-1739133248-1.0.1.1-tOl1fnFlHKugU8q7Lq_C17Vi7Qv2RMwoTbLRNgotb_0",md: "OiHaGkzxudhp5Uw0uYqdFhGfqCUdoE1N6UtGjui6034-1739133248-1.2.1.1-JSmQljZBM5Dd8gRaNpUZUHM8kAOlrHcGt1ONqDA88cR5zp6.gred4VTMh3SQ5hsHG.JVkAhyNb_dPf2EAIfHhVJM7J90VXozzOHWqKXHNGTiQG7t0Jj59H0re2FWS5rszUTL9sjxx0vwBQtP_5EbD00YLDt8mCFcmyixEAE.K27GfVtnY5Kx4tF2QGdkyqqA8TFpd40n7DYib.ts55al_WqYlB0Z29riMWgYi8LpStRpcmBaWSvhFs2cShUTrGPgc1OzvmHj.gykuLFK6o618ptf749ttK9.wJHITzVgTKJq4bfUmR0pF2kYzTjb0iHqtxd5WssZJDf1uX69Sx0dF5dzuPevsMvs.ZZqlm9Da6WberFOmxM1KdC3ZTbygyBV1040N6zXtilQDMi82B0SJtqH_t61UazzL_gAvtS1QFALnMQygKKlDXqVh3QU3778JC9wD9wyhYUADXHdZppwF_X3Eyg2_xcITmTwBPSyPpRYPAJw9SujDzOSaXIGK6r53AyjDTnzA9ZCxEz4gd.CmNmG7FSyptRGMZo95ZfyEY1UhjUc6Wgrdo5IAB3G1U_P0oJwRc_siC1F_rb1TV.WxyxtQJVhEY3Jgjk1oHhsRFW3CwuacwNFkM5jakk1V6WKap7fG_SbTfpYCeSgUNu56k4gOrY1ClXkqpm631mSUKRW0U_E1Tw2hjOq2dFzX.F5G7R1cpvB1p2U.dCsFotmhhGIpVLzlnPr4fu1o3Ke0Ze7slsZLY7pS8854DoTv7gd_I3fdTfTI5TXLQi8irAewwhkmAD6Ny9vPk7EkHbr8K3Gh7nuCQoOraoFSyRvCd0Bd_BqV0n4OX8pQupCrTFMMDFIHc6YuXHwno5Hhd6ZmNf79prCxQ8OG8A6l5lzzSqU_jHrWUDjVfN1xdvcILIlSvAgzrj1kcAxE9RBa6IPh_VZoz52eJBoUU0rknKBn3hMzdnds1wcWYSnGQSaHvxLcRQOgrkth.6M9ZZsMlCHeOKVacjaYkxP0RtrcQov6cVtYJsbkM4xb68zjP2xAAeGXzpssLyUQpFtholIE0XAKUfwBLn3CHSEowvtXDSpC3Qpy7ratpWrErJq0X7wVqocxkLh1ibTqG..qh2d830XQce_YXZy1HPyRkjKkeXL58DxA8ofT3Mzx942oKiljZf4Cur4Dn9hxWMHupaPBvZgQcodwd8WLkaiek0HZpUiftddRAzsheT4wyWjmDeBLTapyDM7XrymmJg8cXT3w0IR5Y2HUceMaQ5jej1YWqBT2wWmRH4EgH.NjsG_4DSGldgpPEJAuKDkAcdxDiLACnXoMyWs6hTgU4z5pvHgMqLCGrZxkMcYed9HOghpY8ItxTmXeTgldcwEnlbfN5oeYG6_m7S35bsMCXQddtaVC884dApYZmPsW8uCi2qFhzi6_OSSRSADNbVxV1RpUN0kfOpJPkGRGThHVydolBNLpPCukz9lcYGANp9_phYWIM5nriun5_hC9YKdU_0pBTL8nnUPcTlq1gpwGi7F8mF4cHuqENCoOdfKkKNlmhb3lOaHOa0hABkqtX2dxtFXsaLLY4szuPUjUHNlEx2veV_8g1UAxMZuPp9HTczxD8EF1SO2YqZkQCd6hy9PCNZ4e_q9BomqU3U5pL6IYRIC76fZZKvRfV.CeT9VQ6xc5iZLJfywQcQTMTaojGKalG8kgkjz9yE_Ub7oj8Hqzbmfx3NmmnGBaSbPIvkU2yT41fQFHsgm.XpMJTnyIlNstFSeDjX_tGc4H_JQ8lzDxdE1_LgSGdK3xglUuhVuqfe3cSM0TIcqFn.caUQwANU6.qTgiIJRhAaIQik3uwGeZi0W7iVpuBUcqppIr7YxgsrT9J9Qr0GJLbuKyfqdr5secXcYIAw2RWM7hr7qsua8CRurKSoDHv1EVwcJov.I5TF4pXRr8zK76GRQG37SVKsLFMzRkAqGc7Iij.BHkPVYugxJLNg1wB9g6Q86Oa3Kh2UlHO3MJHbbMPZwqyvNdT_FwcZPh8k8tcQzmgf0ivrAXmXP8F3xKgr5BFTCwcvy2Jq2nTdAv.kIrCeNb7wZnCVsOWFd5zKkBUhFObTtSNDaWvmIS57_6jMa1y8bsYS3iDF1fZUho5ztc2WmMjd7a8sJkHolFeRX10woW7K1kUC3IUPU_8FANmUm1dUIZQ1aOj1XyW3YNybBxLMrig2a1bvre_dNdT8bU4hW0435iRhAyvDMEjTX3SnmgHcf",mdrd: "PVkdyx5qDH6NgRCQ2i5CzT.lFdOjO3SH80OBB1LAGV0-1739133248-1.2.1.1-briLiAhRhmT.01inFCoOtUi.vUWkPn4.lRCOY1KLg9IldkzR7sVGhdPsf9W7rxfPtZqNKAa6qcjvIieILquCRJniuP4IPJTj4nOryR0QPZGdEFTxHVaIQoIOeyTyFnAo7V2xR5rap2l_T4hJzHKeHxWXUbhWLo8eVNgQDLS1JzwsyzjFXByF2fVTp15ZIOBUmE_cXSpdLqe6KoP86ylASAg94i6SrJdllqgUVV4jlc.LKErkdmyuGl3za0VvEyQAWkcSvrUMY8shNBaZ9uhwcqbrt2l6fpmQotlVrexfS.iKioPq5aQIo__76Ph1wFv8KGoXDV4zFrISEh1mZA3yJsF5jVpBXb9EnJhBPRPm.98sPFLIakuEDiT.BdM2L4VVKISffUrN_PMO_lEgdXOtka1SWZqoHbPJN3qwRWYmwv6.mTSXc4e87zPXr1EsrgvLrWciEn3NLrDSJ9IoLc5QjnJtfjKaiQaiQjBFNND1zEQgFVvfEDlZ6VT4VGiHLFJMG5yc_rc7lhL3atH._BKAzxqgHw7PshtRfuw3KNuJh4r.yMStnvoXndiVISPXXDzNRpkSDYLeK7CRheNUd.xmHnt2yfEaQvpve88OeZ.w.vi8DOvaeKvxx3L7M7xearIgMBxZjmmvFDueDh4vpaE1MU9GSf_3zXz4QqJMrEY058O3Adnk.SxJSphps9hJe4ziaVjTg9wCfmyyWYrAxiGWmPrEajfmXDD9KADeGaUmGuf7G.F9Qx.gKMIoTEhNMyi7b_wXjm9fbJf4GpDMYhaJ_orVYXef8LgObrwpCTL0xkU17RYk7oBEpUkbW9F32xgRv.V6wPPGGGB47nbdx39Mzf0u0CEXM5KT1L.w0ELhlXbUsxSgWNwYIe6.2KOokF4lsqzYMdz0n_OPvGc0wdQREkF6XJH6qae1C4RJvmjHpZVWztljyyXJEua34maBuksvhHp3bZ3PuxHPK8As70xb4wanE5tYvRwJdGUCfzmOuuLSlh9sNT_6g0fPRpFIF2lk7WBWhqCoTw8SQddI0M2xtkzA8ra8a4ZxMxcJOILhnCgL5QH_Vmo_zB5KD7TeO5fDKyCw1pMgqT14aQ.C_t.7WXTUPi.pamt9ftypcEOZrVJsNdtmfIdFr8OwAd4RGtAsh6qg058oUcpp2hN2BaCYut0u.2U.AtivPXw_8QmHS7ljWYybKv8esDi8m8XHf9b3.midaRWzVqoEb85CpNZoyelFTD5ilZIN.INY1VMj31oJYoXbYOVG5Fd8DiLPqlZS1.Exa5uTBasoq9QZ5g14kqc0RwQp787UBRTSCAA5bhj9IlwUfAYPTx0molRuRPgbEA_pvTOYen.bxDhurdUltH1QROOyL87MII0y3oEr4_8IcYD40kDsRr1Qq6OE7BC.XkefIvvmrJKtWLJtYXtq9izlwlZVURLsnwB6h8SWSFFSYuJSDLIOIFipv_tDKue3jHZnEg_t5xfaPhO5WXStYnCBmV5uyftAX3uDiKtVeJshN0ho0mue9fYxRFEgCGQBNrcVgfmQrgTPGoEPTpelPFhxViHpGHOJKXJV43e0Momgv1BZS5g0.bl4zdoGv7w.lWt1q4MDSs9yCrRL2HW8H9xRtIkF.HlUTO86QAqu32Q.8igg09nlKdfYp6HljtP.F2XmqwUYLisk_W3dGOqfEGmEfkG07PUhshFYn.Yl0O4zTVzJLdSt0UBhxie1K_2DCIKqMVrOYkSLeUSPnaxrm8kb9rBl1dX_nfUB8Tmkg8KGqE67MsN9b7Q_0StSLFYKQW_osWkYhcC7X2nm2VnSMw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f6a3738937398b';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\/4673092518?__cf_chl_rt_tk=P1kZ3OXIU8u5PrhdgxOhRHHrv1gfJfYIqcZuOXGtR0U-1739133248-1.0.1.1-tOl1fnFlHKugU8q7Lq_C17Vi7Qv2RMwoTbLRNgotb_0" + 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
