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-829454452040.mit-edu.top",cType: 'managed',cRay: '90f7bd707e34802d',cH: 'zbKA9uFWXwrmyZTYTcGLLvgPOipQk7vghW.qZviJhhY-1739144798-1.2.1.1-vpyLRCCEt0XSas6ukynjoUTZEjjooRvXHL.EIjmrXvLaHoRxKsqRfCHjU13Htp6V',cUPMDTk: "\/post\/9718465230?__cf_chl_tk=l85bTl2b3q5ZEDoTkGHtXVjWMtwYMvKXa1ZVQanXCyU-1739144798-1.0.1.1-n.ILkLfknYKBrf3rppTbCk1e1lEwMSljcFIBkLxxeVA",cFPWv: 'g',cITimeS: '1739144798',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9718465230?__cf_chl_f_tk=l85bTl2b3q5ZEDoTkGHtXVjWMtwYMvKXa1ZVQanXCyU-1739144798-1.0.1.1-n.ILkLfknYKBrf3rppTbCk1e1lEwMSljcFIBkLxxeVA",md: "hMU.0.BUqJk6gO1nsE_frI2h9DoCEasQ3nOYT8LHoHY-1739144798-1.2.1.1-nDEVDXZEQQ_5tqK__K.rkEojgbYf2Mdjwe4XZ5MMrxHFZ434WSJ7f8Y.thqQqjkTU9cGRhngcP6s5R4bvSXY3dkbzzJ.9mlTjwIIxhqUqGY5hKLSmr1DH4KsJsLdIidDyj_D6YTluSTf0DCCnJf2sxzSV.sAj4LjE7yK7P_25ZzSRjwn4DVnPGg0RnsCwmvwydcJB0bN704cUcFkFBcCSCbXB0j7VUXp6YSmnmCqXEgFhMykTyYAv0BinpHmsDk05rltVhiJnCUUTz_pvpfZ.pYqpfEW7ejL27gCOMqyvza7BprfRZ7kfZ2Q0p5gyF1HaN0I8m3h7l.zwbIFmX65RxarGNmjlPtGRodQjEoUfBeKVT6Hh_EJzqfGpr.u1vuA9bezfTsyIpy7AXvetz6Xge9544ohEqaW_N.UHD_dYJvEOeIWHXFiFyZ7KAqKvi3bwU2ixneagLR4YUBlRRQDPTDr2yo4LPJPgDwzWABHYWLo1.0DLhdz.7yiwxeGE8xP28IdU7k7pVGhTKDiteBD_9kBRStlzCeVzHWkNPSHaaB5eqXulq8B.aNci_hMAVr0WJMYejiZCV2GZWYMomj9tYg0Y7s76hol..iMyo96fe0CUgPbXC5MSXp4nklEmstPUlFRXTXfjzOU7HsTFj6fzgLrH1EBnjyDzIS57cKEPxYXL.6FSVYB4FIyjKfNMy5UTXPf.ntGetFP8OS7uvNLljYfc0bZay5CXsGb4864kijqoytgVM6OMuS0778bNF8OcvUNYAITS0WbzTEJtKSyaNqekJmCc67GUMAqGZl4lrmJMoR.k.h1KmGTx86WIXHl_W3er1eKL1hGz_yWSlUG7XBqaOhdToaeW5CzvcbNYVBQQnSnYino2Q1X.NmGGNEGWKnovcAhJEGnYcluuLkBGd7PITz5lheU5cEpKw.RWETNiG7h8xYz_qvcjvO8iMRCsoDlfM.fQqjbuxOGPoQw9bRfX7_wXs1PMTflYLC4I.VoJFXUaTORu7FHYD0wFntdHxA3FmeI4_ppW.EyrMbwrNQ5m3ROJgyQ5LSnRnf.yjczOCB0w2804qUJrbrD9WcG0gBBD7sVTY_eAyNpnmiOLhV_nd2r1LdsUJfQ8lUJvQ6fTAST3kXI6q6yGmFd0Fmor4f8.Fqqq_uS3uHMyNQLd2XZ1foWss8k.SRrbpAoXj7hETK3x7fWryisdsCE5UrXbkfbaGZUsRaHI2fFo_pU1is_bKyO0o1G2M1itpzjeg7sT6hERp_oxuCKge_r2.ZjFAWUsKiTk6fJw5jJFGdXFdIXXkZO4u9RPsh0JSUQWybVMx4AE1LsJDjN0vehDhyivuqv3Y9_.rb3sMu8Ctl894_lGuSKdQNUUpv.KkbFouVOrV4AFbzv3.yDa4LUCqM1HjJ7MveyyFbvJkW._iGSI2LWyNGP2r4C6hpbIKkuUWgPKfJHhppJRI6VBq8ME5FOuSc6TnghjdOMgUFck4Ha9k3isSA03Nu2FIhYCiRb7xnb7S3P0odya7vxBYdD965yYIExJo96jhYHvBUJrXsS0uJiufc9qCtkC_xBQGDcZGCvpEv2NzzOsRf5IIXtSF62TKbYI5Wg8.TIBX4nK1zKtavQ19npUyWyXGDwLClzSfmBilyPN8j0aDhjro98d5ckMDZBGJBFYdXpNAP9oQFwnOOCh9OLTSL0JUvvmpcKYMNPkmbsF7pPGoeLVs8FXSQ0lqgm2AWfkyAzb.V_U4GAAU4QF1NqtzeHnVo0muuei7CWwldZwsld9b0PPvL_M4qZfDzn9CSHbvS1zxUhbHDMUrmcqP_XhWvVII8nSVaaHnbLaQUEWG95cuAw2ZJLhn4ET6NYOzLFDKtsoJ3cicqyiVSSYIJWRfBYprrad0k3UnbXEq4lUudVkcmtv1C9nSEiwUw45xjVbort5MzjvEPHCIvXbd71A.s4J6OWapZu4HS9y_uUPAsma9bRZVqzgBhOSPrR9NS._BuVRrfSypTGzT6F28wXck10TjiH54J0eJJc56tcEOQL7kDcymxOnnxRwzRORC0v0hJBY5Uu8m.ClVZcJRiiq7eTTlZN9tZT41tH9Z6JSNUIAu0glrDK_I2yKwaCNPA92bT.v9b6QOOWL5PzCAXHx7BobS_bsBcrRzlASQUKpr7zTQUT6slJWjssypeb.2uOqBoa_3f454F5IKuq7W9WyK0F0SVGVj82KKXdnzmLxByzn8PIe9wqmnlG",mdrd: "P5QRiktRRffhotdZX0rdeB0bcDwk0EcQFF7Fadg7oQQ-1739144798-1.2.1.1-oHT2FoQD_rm7_a5FfescZ.SWr5GYCOtn3MHcIzTFL6MSrIK7BfaErKktkTTXFEzHKRmpa.dG4GebINebdVqJBi2ZJBk1LxrQDe59o.reGZOOYrdZMKibiJ1FhaAoDgkFFyl_dcHsUIifs_mrvC9D5yiEXvHDlflC9XKdmswbYG0dFVaJUytJ8rye2Gj7lWDqOFGoST.XKSsq1hDl5MfNs95KyHRnf2lIyV6_jz5hKpyrLJsWDTCWQ_82kB_74cv6Of1yMBjTAS3TpTx01rIvDydoEGlmceVVf7QyanuNkTfum9g6.yztWDEhjL7vIke.A7TDWbZ4mhR6sf8IV2QnmUdYo0baxEsh8jaYKNrUPpfAI49ZOHT5sD5wSCTN4KV9btIXLkWefkEPRPVHfDGA.WCTEZik26.gsWvq5eKAaAKrojGKtva23vUMAA9JU_nBXWx4LfF5gYuaqXfdx1eObPHwBDgLrhY2p9tNnziMfqZW2lF1iwmJnr7WHpBLFL5HSSIfNYRyFbedxX4cKm5H77YdNuqeKXfIMxz1q.aYo_2XXln6MhPeWwPG1KCgFP9HrK1_CkOPd3suM2QbW5wLResuhU.gki06LWx7rdc3zlYdqGsgisik7Eh10ZKSaH5Cw5R6xSmtrDotqBGumcj1upCOd6bjECZcSIzj3ynE0nSBoHNLIgh34oQStNcSAjyyQVZD3WdgyQmsDSyEpQTViK.YUrm4rLjcdqf5_VddH6ICyMxAdo6oUAsXcMpK10r5WbWSpdJaV8_V90gp19NvRO5eFTKd9dlIIyiArsx7gF7q2hiHwnscnEVXkuN95Y6_EWPDS2MbfJoxqiGKEcv4VaOkoDoX2Estxz390S66MUSfs7D8.I6R6RWl8.7n8l6.Jb_KtULRHBUVJRtiUKlS61USUuYBy9h4vVAm_yb7UKVoJIasDYSUdhoXYflkms10hsAgFJSS_JvCKET_ZhrCWdBe.apevhg7dr5TO53LVe5aFnoaLZuME1aQ5SMmzCnjFl__V1.6U2NQfmFru7AwcB_dExD3HWcgQ1wV679waphEXtWHOboLPvglqsz72jIoDVaiABmdfDILMwV9Ee3QzdBE9hWWKl775V_pBd3NsT7ytJMiF5RAe8D9P8BqOpF8Ow9OVf2EFhnCIIy6AYbK0XcwsPNgd.7pJSuJXNQ8aqr_hlyDIq8qXEqNgtT5Ay5o4Lm8DWYGCMN.igTNUqwi1714oXIw0atxKz_.sD0dzUzHabFSy0.XwGQjcDz_Su7eqcCENZ9efeT0klyQZG7mXfowZ3lfekNERFeuzT6S6_A5F6.HhN4sJfHt4QfpNhLw3kgBGw0eyy6mBxbvXI.6dL1wjEmG_WArq5Io6ukDeRTTxxbL0mg27.UiQaETumLnbzzcjYLyYo.9A6rC8.DIfQXZu.V.f3kvSokSeY4.XU0PzpFPNfCDHchWqTnewvUBEJPwGK59dVCDWL4PWrbL34fQjjc71AUF5f6YpXykQFxmBld8vuDjVegwCoaaf7WIeSNsG0bd4HUPmTAKodVEs2dEN2XQv_8MGLrakwKLNHT.K5JByjSn2oLdH15k62Nkkj1Yfzgs.pPtqf1fRX1Xw8kxjLHJoZHkFMf4rvNpjJBzNKu_OeIcmx33ODJIDn_pixCuSxbi.ph9nlNzwZsVPwq0ID8xIKb8D5YYTYQr6wxahkWUpilD.NFnih_5kfXD1Rvp8tsdUXGD_dtuohxcbk92MlK4mfTAVh0Q4Wx.aLC8MAC3EThg7ZmFKJw_proBk_ICsNnAZ3kCjFiga2KzZLy_hBQ.tBHBYdRwKP0AwZk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7bd707e34802d';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\/9718465230?__cf_chl_rt_tk=l85bTl2b3q5ZEDoTkGHtXVjWMtwYMvKXa1ZVQanXCyU-1739144798-1.0.1.1-n.ILkLfknYKBrf3rppTbCk1e1lEwMSljcFIBkLxxeVA" + 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
