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-055960285861.mit-edu.top",cType: 'managed',cRay: '90f3ad7acd8f8200',cH: 'AxAepplV3YSBq4QX6kIi.nexNwz37uqYHdzsoyc7FHg-1739102202-1.2.1.1-8grvXxYBXfC6__50VZxb7cSYsWKATM1s7t_IuNtsIq08zsOxx8.I0MM_7_E7Zij1',cUPMDTk: "\/post\/5302147968?__cf_chl_tk=8Yf3Vw_btpAkto2qVYCpu7XiBv6WS6foG0uVsGfzM6w-1739102202-1.0.1.1-1tEmAa8kJ4i9zc9ooYAVrTPYnH8oMnlvyhC1IezY5ec",cFPWv: 'g',cITimeS: '1739102202',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5302147968?__cf_chl_f_tk=8Yf3Vw_btpAkto2qVYCpu7XiBv6WS6foG0uVsGfzM6w-1739102202-1.0.1.1-1tEmAa8kJ4i9zc9ooYAVrTPYnH8oMnlvyhC1IezY5ec",md: "cuB8RPrOOJEuKwyIM04wHktFphwmc6cDqAQrgzEld6Y-1739102202-1.2.1.1-m6i56SVA6rKPZLioxrS6YnONYvZSeFAeYCaysl0rs5MLWHbuchQGt.6fzliRduxuzdOKcha0Wj_1HiIXKUtojw7KY38IVGGwHirussHWGIJYMc1C68wCqGkLBRx.hoAmMt8ZI0n_cTFB8eNCPBhKVJcDlG9iIxPJoFPMfSYxOCPFGCf.nX49IndtnOPJ751us4LQZfifjwDZ59ShwR8YS7m8.8XXOy2LkhJs62kSIkpuToZ8yjDC53j3gWxlN1L9yPojCEKtpDonKxNpDGCfBl.t7TdhH8ErnVhdDLmnZ0Dq2ZMyU3sjMG3.21WRIxw1kPXMq0dwtr3pXTJR0fMsw0z9XPAX4k5f7Ghr968ySjd5moL1RB3bRhafJ_rxGVkM9BkBM_giYtjU6b4ql8m8.2yYYdkiyD59Pk_fIJtP5g4YQZ.MyxYQCvKcOSqzJNiDgg4zIVXJmcA1nIazlWR3j9VYM0EU31uTgB8qSSYf8SApBAy11Ms1uRPBroRQcsQRfCucn2zpUca9n8P67LixY75L33WcQHxvkOGDi.joFmWGmfUN4yaEDeTBsdEQGuqoxWU4oyvymoKBP4QsVWLNrS2WncV7S1OJ902MDy.tWSnTRmh0SEh.6tF24cYeVR0iZHahyfRKGySR1tUvOolkppqOd9TmhMq2PNLi5VkM262OzaIvmXpiMcd4UJZpPvmwexAyT.B4DX.hfcgspkYfyvDIbSYYjVQkUyKaFlSo63.Qut1_nK0mcqwxxsJVT6.AObA5qTJUznSGdOENWt1VqV8SNwQvFHAxUZEIm607uClIeqJzTITsBjnoVkqc8gCRWILxdGgpdmIXRq5vpzXY6gR.AOVky2VZTlbqNmsMvzVJFlYhvdKIsBzKjcIb8akFkeqHDIUDgKJT0_rIlXepcyW32aAip0_b0Is.JfeF1MqoKVuyvIe2w.qXBKKhwamXwuRwX5r47pwH7_xGl_A.k1mGnS1NdNWnXutqeVkwXRhkscCgm59dDvzRjWghIc7PF0tO_0IsR52WX4JDAojBbZ6FI9VEygpfQCMaFXYQYFGIAYW3kaant1CdfoxCaYmm1r3XfR1Xu2NB4L1R4GBGdo5FrBXUf4YesjjvNk4Gg4kR0niV8_QlBnXSCpBmitnnvoSPxVjJpMAUwwijszys7nKTkf3qTlt2Syrp99aTyzSNmy8SymcJ4h1XnOJPIidEEnDXwuOGOUTpijrItmr1EYJyEkwUVplQit2lVU2YEj76gE44PLA404sfBN0PRr68qmhFaMEhG0xLGKFhk0CBAVSSHTjqxVGEcRwU2lgZwVtLrUPiE6MM_CoyYCqbpqbNpHCgIBzxGBQFCiMDajTFbLM1PJ8WSrWKp1GzKcHtnwqsWQ1zFGgfgRzJRIcGj2alC7TualIhh2G.1gQY5ZdfPRf0xKr0T_1eN_CxLWAKdv7qkV4rBGWcdh0peETrMjbyXZGGSjEcBXNa1.pBdPXOQKfEALP2wMlMpzjFZRoR_CeSMS2F60oNzJeYdH1CHNcYVph98sIJn43P1LqybSZnpL.oBr7Pwd6oI6o9h.h3noNIds8Inku2oVlD1iiOvVSPRUV29m.EccAw09IpsDPtANVu.L3KwAzFylLdLyWIlSiVjtQxHTQDA.vUSL_xWIWxFGtofMoU8LIxYPwLMzNeQFyLQLBGE15vnRuOXiAELNXZmR1VbhTQgG5EsHANFW1lfz8FtIymi7shb.z22lmd0mpQ9MFCKEwYc_lUzhgudqgzFEpTvlnS31ze_iJChO6h0GMFehKfNiQ_5PTTDL4aJvvndW9YK83RhSn1fqJibiUaNbtrxSHAgojQuVzOVBoOnW3ICOYGB2NUtVCAjtvzRdU2dn5cQoEjdaPuMJg2S5eweSJWtycj7gB3OP7Py1y2IZD1W_evTemZW0Qh2VVbYmhDJBigNHnBuOmUOq1jtq61Kgub_CoNvlukw3p.c39ZQy5MQ2T2JYU.m0Unsju432KxpGx8BMf3zpYyBwMp2HUboe01_b8WNzThNYoSUHiJvud.7g92k.a12cna8Boitoab1yyrPtT6teJ4qJD8M_FVU4yrSGjoe9602cDmoRcink1CfpmSwlgb_BAFcPqRys2PWAJRBf3GSfE4pazt_8K3TEh5TfMsy_73Vawv1t2S5uuQKsHA0xufZRZn2d6OgevLKu.yswFSb4r_S3mg.lOL0XgNoPaJHGtCx6BQsQ3E",mdrd: "Liyyjjq9reOhYe4q0d7MgVWepR60fyVMurvSTj19PTw-1739102202-1.2.1.1-941FBlK.RTdZw9vaKrBCA8fIhfMRzcXB3oTOVSfEcQNT1aETLihFDYlI6t7FRL6gBRdruMzPVO5xm0Ab_EWjbGE1l6QhsJZYLGEnUFBfsv8oblWbHqxE1xgc4bpz9I71PNlcSgUk0HC54YDZAi4SwtZlXCN4fbIHLBHYa3FCmKaLHX8Ljrti1u0NWS5snuiPE0hV_h3iyuCse09H_QtM9eAAAUWg6WbOnH.ERuqrz32QwIhbh2wXr.xWg.jeKBhm5eJD5iJsIst3HZH7i8XWOTLmFfIYZmPr2JAj5FtC653ZhPt9KDhBcFhD_iXR2ZnMzO9z_HOyvT_u.qkftJj6Rl45zeBtDYOaTs2fJjP2eX5VOjSyszZGXTTwRjsuGNFg_MpZO5E3sQHxhqqsgtHSy_680OYzQQCUAxSj.Rnu5zKZhIbeDEb43qcoWW27BCqBRRzRQT6eAtPh_UBShNdRZOmUORtSlVw3scMcAa8emG2MqfYBlBu7ITCPIpCA33jHQK4rlZXlLUndvVcvAwKV8gSGVsK80ngcSjxz.O4nrMASrFl1OMnBB4d.UKeE4wMJUO2wfMk6H3onHxB8e_A50UkRG9FRHx4G2LXQ8sUlAEAFJ6wGfeDZxBUod_O2C8yWYPEu9x3o5dIpde2SN.8DoLmPjshLyGB7VjBhe_zYoh8Hub6jttRaHpxtwgC.4gK4Y2l1C58uKU2bK8aKH8MBqNmRPK5N0EsKmPWJHaTfIDqW8s7Z4foncly74KjYAm.Hp3YAdSw3atBqHjrfH47qrnQPUEuTHRdpH4yvQZ4eNttnTwB.rNX6KdPa9QlJk2ppagK6UJ8j1EYnKrPlp_qfja2dEwkog_z6NV1mbGX.NVugi2zzGqAn6KXeQ7z.UIJoeydNSVQpXBvVt8aqhBIlG_mnGj6xFWroImBKp7pK84adu7tNp0Mc8jLnhlmH77gkTXvgY05c30ke5MITBLjmtrQN7Qi8RJpdOAZISXSz0ISNWunuZqQqmzWDzDv.sotVBnRM5Dhccc2dW7MJd_tVwc3yp_Oer7rF8KC.pq32ilgbp7NYc57USrtYTQALMt2hBTXFwra6QWDzqSENc9c.z96wFVaxoeXdtryoa5gYza4iEkzuPQtKUpMcJ0K058Oa6DRPvbOR6Qxi6TeCxh7xbaEjW4IpHZIrn0cJHE5_7818oMCavNmgXogqN5zMjCnQIHsLPRCTZCa.OhYaR6XRaqOS0HWShI9YEDFcUfHYeXUVqn09YzBHVSUGigXEEag4fiXed_omaG0hdqYBi7hTzCsm8eg5JCoc1Jpsp1YBRkYDK41v6Qs49S2mPBq2brc09Aaa9P3a_rr4h__BPeYAZ0udtBEOZ6.vLX.K_F1mOYrTi0IW44pqNHmKf6dhG7y9VsWU.MEOQ.gkcPPf5ypyGzYo4INcUMWZw4lu0cGnYzlosHJJ6iAujE3gP7fLc8_mfyXEfgvkseF5vJZcMHoLd3RmNd_QthHUI4G3Y2nPze4x4d_t8mGPeegHIAtIe1wliTRmJtOyrww2IBzFldJtqXpOsrdJsLnti9tFj7eDcDnpp7YDDm5vfOmy4DF4xeBKjX0DR99TVG3hekZ5lcqTJ9RzcWap.hxWatx.egh2cuKk8c6TY19.Agmai7Tra9xwl4rXjeSzQrXur.09FBQNkMsuFbfIS_r222aYOtDaQvL6RDv_GFL8V600_tuif7MW.HI.UIEL4b2nonavIfozOpVu2qWhHMBTggJdfCyoTsQjsBMy9nrX67y3YCDr7BxGTq7wdGgwMViCFGIeExcvEpcmV5v0zvRnp6fiWtM8Bkg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3ad7acd8f8200';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\/5302147968?__cf_chl_rt_tk=8Yf3Vw_btpAkto2qVYCpu7XiBv6WS6foG0uVsGfzM6w-1739102202-1.0.1.1-1tEmAa8kJ4i9zc9ooYAVrTPYnH8oMnlvyhC1IezY5ec" + 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
