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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-616367903933.mit-edu.top",cType: 'managed',cRay: '90fad744ff4af273',cH: 'vd27LL5Ks6QKaVFPT2_z013EWZ1a1hi1WC.0F5L7je8-1739177314-1.2.1.1-BvTOIFBKk8tJWzBQHDnuucEm2i.SRkbDQa4zaP1lw9wdPe1NwjYXU7MHx2G2vXOa',cUPMDTk: "\/post\/0617459832?__cf_chl_tk=EzpW_lxvv5C20f1upP2RDmbhCaYYThNotDuN5lZi_6Q-1739177314-1.0.1.1-QF5WfrutA6qEAc4vHwmHX95iS44aq5oRd22F451dgSs",cFPWv: 'g',cITimeS: '1739177314',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0617459832?__cf_chl_f_tk=EzpW_lxvv5C20f1upP2RDmbhCaYYThNotDuN5lZi_6Q-1739177314-1.0.1.1-QF5WfrutA6qEAc4vHwmHX95iS44aq5oRd22F451dgSs",md: "VBqc3aVoERmF_4RaGklTtG62SR4pJI.E3uExXtLE0WE-1739177314-1.2.1.1-en.NSZhLmwERcmzQ9_395qrzKkF605UAHeKx6SeksUQXuFbI0eelvfXUs3XU6SE32oKs_NAxbGXc5GOrfcduPInw27Ko4GvHxTTXssrikvb5Oi_XUr7Zf_FVtd_f4eET1VqnkWa5ODgXPExAcIlrTKSusjpCMeIniUkPcKkiSLBISeJZ1w3ul6SG3uOMDrKVkfXtuHWB.lgpif2H36Ohr7PqEa9rFbtkTJDoa2ncRWb_CGxSGCbXN5YJbAPGhluUETbvwwKCiF9SwERR_Xn5NYdNob4QXYpD7m4yIK5cHBcJiyInY3bRhZnZ4S8JHTc8HT5P0vesx2MQUSUn2KTWkfwp_Qqt7YpgxKqRVn4dmeGSHRj9CkRoqlwBvwP9piCbDLU2lNCNCmaId6iN3hhBINQlq20GJ9WgFnEErfFTrnrulpOnJjXQZM6TpjzGZAOUZkVkQZvre8Rgc9kQxb0LJb7DsiIVaRlJFNgAYpcJifvkhPmklP2lcyG_E1X4zYPkNl.jJV7Mnv1e9lkWBFPoNlYaRa1XvsgrNUOABxwWwudU61CF3m7fnYZBveEld8v8sGyPkJQUhHWlICPZ2k3H9Vt6G9oN0B9Wz2jIZ.dz56SiF6jzobDH__JjBlZZzuGycF7zk8XPLPrUNHttqedgBlLPOvD67PvSX_HBPSl.y0hbH126ADtxVaQburQ1NYN8Sdp3ZG7c7685xjmq5jHrwfPzu77nEKP0pnFK0sSx3YO0YBNQjfXy78SP0t13nbFKZAXaG0E0ke6vib72NgFnlaQ61OokgQbDHzmlj9.0O7RRS_OTMxXeXR261aXi0I5GgC8ixrd1w8aH3NI6cY9nBxJeFQl3g6AMB4OxTFjqKXo_pnho_DHnHfbvKyTr3ziFTcSTqU3g_WOjh.QO2opD6K0x2YIORPPmFthMul0pqMVcp9pANuNZujIM8yp7fhMlnj3Gbnd3dJgpI5TK1QrUUm1NWfIZn7nGj5UkUDYp2sKagom17RHeEj3Tz0mQuhXRyzA_VG5zvyaB9bEfPz8K4EerH0uUBv9ZmTfZ.rvnmADOnRPquKePyk2uNRZhxIN7cMTQHouNEa1ZtlJmAs6g4zfJ6Moq_atVeTk4hl2SP4VHtbo4Z6szWSJGvpS11_6kxTEhyAEcUm8G9ovAISxbU_08G6c0MOnZJdcrPAmmRrx3x0pAe887HEIdOjy.1gTpvSzaSAxCVRVTxIdgo7S6qeYHEOM.zmMShyteUkXrTr.XkwbIivgcY7m5g9zEBaF4tsVh0pcT02GNJu4nZEC6YIPoKyLUIFaTI0s4rniZVCCa9R5R8IBGGYl19XiJs18kTLPajRMI_mGLqQBjPcHDfDXbqC0Lz_FRlR9XnVs_rWU2HjUOkSpFuAiz4UpuGx55dF_pH87Y2pVYA1QnoBT3HdIBZ4l9wrd.TwYsz1u2QgAIdIrJIKJ6fKSoqfIsBOROL0yKZUhD_Xm5PsjejiAEEqGmaq6udkLstlrUkHottuqo706vc763hABgbWxIlQgnlpg.WprwxTHPIVQYKM5GqlUykmPTAkfPo73widS1U_C98YtX61eidTs6fY3ydrFIoDyKxeTRNuBoQquy9jcOsN.5jKfLOkL1sUmzoqhoJ_oazTRrg9SHPT25yfrpdxu0XWkGDQbZaDNcZ3h9k8PzPhYQc4MXXKawVji3Os7f5I9oWsBn.xF.Yc3AIzir3q.BmY8.z.cbNzMuL0JwmRHqLg2HO5D7K3ze7F4vJ00mDzRTso8Eo_wE_UomVKEkz_V2GWqDqsk0OIPVbd96T6CaRDcQe4dWLG3TbG3xfK7Bah0kPakuMHk27dp01l1LzayF59KTlp5h4C3C.KWS2BK7ZY1E0XS7ugTCM_qIRmLyuPrZ4GF3lfHBkfuKLDmEJSHs8GRjLTG3s_udEg4Lwq38xuYcEd3oS58cWaSHghUChSEXLKhlrfgt_xAEYy9CrYcaUKfe5bXpp4r1Bz7MYOmqLPm2QLCnYKL7c.lQPaLwYkl8ErnaAW_lreo8rsTehDJoDxY5LIek.xYL0D1RORuYjjpWJP38tfbuHeT_OFd6KPVHW39HfN.oZ.1_y.XSyunxX6AWoBPJvQxbl0eqQRP1Ti8KAwfYVVO8oJKG2ropy.jBMoJ6dQy6IosyNAK8udX1HbAyllXAGdLPnbiRAbXOGaXLxQf0LmX3FxCPCtxgIeFVEsmERkiY_NDIYDmwfygN",mdrd: "so6mUY_0gbRdsXppGVUJDvnHXxs.AOCUQypNSfCUPSc-1739177314-1.2.1.1-H7ZbKSnBzK7CQoL5ZLzu6WJvMq640gXQL3_IitaNPyHay5GUDfkgm6ciYrmNAyE48uGchFn2IUVb7TS2_c8D.VWi3inuAtRzf6kfhnUmvCkuthJzsdzzK.QIH8XWyCJk1t0Fmw.IbkJFwHBjs4ZP3SMh2kbjnu8C2PwsWalIvF9XAjsHhkPB8pNlDxsrxWiEZL70TGDQYrr3xOSUnN2EyJszGc.8YMs_jztkVrEuOiRUt3o2s0vTGnbzVIHPd6z6Bswv4NubQUeDOYhotLXn7X2Zmbzkl7fyD7b7ISHhFcivR9MZXYOebkweSU5.IOodoZ1OAQvfYQNrEvMHxJzxAr20MaerG5vUc7nsku__0U9B3dVsae4T94JwD1UnGyzXXrQSTVrNBqLMjibaFAUD65BTWPqosXs9B1Ad6wE588JV9I_Vu83PU9dtLioe5Hf4ozquM5s0KR.NKQ98vATFA0WY44hme2q2DJUe9xbXtHcJ_rGZwetFksujLl6rNMd.5GaoYdWHyWnd3SvaGtqqhM4j99p0aNICJMRNFVKL_oh_q2kE7IjjJdij66NDJcaRpwZzG4gK68EPvgXvpPErpqAsew_tk01.h9ahIz9PTKhPu7d_k29AgAKECwFI7leatc73pUKwr765mL3rXVlwacLu5ZvLRyggBr.f.5ajTV6muEIVRZMleyy20DM9tvg0uE4hI1Cu4yu1GifgbARu.XuwysBvoDcuUg4JanNDeTzzaKRUwN4Vm_INwdfpc6.zNG3V13NAumXLuc2i7YhGnuxAnOhWCshEPOeR8.eAYJfUA0Y4MYbDr_yMGrxME0UyrDO89quMDnuIhUvEDgBfBQ3B1Yx9L5Yi0Ys6hYTuKDKFxWWT.GYiH2.m8UyWmulXwwVtGQEDZlI3J6zlQKzCRR3Dc1cnM23IgFny0R.NcpkuIMK7BgrQLPNtFpJVILDXIuzR.2cUYtu.fR1eqPMI5BHulK1SGrHf.RoYfvKG1WG4m9YnaPBzGbDEZL1QuPsi1t.aMb_hA6yNe5l0aw_CnlQrcFDAHw7Y9_BX7ywYpEcAMozVIPoHX4iOEzaPW_wsq5YvDpeH_1RnPGtpz6saoCCJA6V7RQOYWcLQ48MCzWBc4yvnPxEXGFEmJVJToGT8AZ7xQDPH7grQ03HrJdNbo00NIAZTbG7u_GMOeiSpxTyN7kKPFpMWXwVUYZxuybgvGEMk5ehNesPMRQeRWL.pmWacdN4M47_YMnglrgygrzWP1k_B3MJNpV5jQEjzc576JorZocAOXkjUlGq2DsgZgp1uUuWvMBTS6WNtAM0fq_S5AzyrG6761K16iJlSO5mzLceC9y6rlgZospcXnUsGMMWRspZOcNTiry52O_rlJ1XgjqDjPli6Lfo8aEq3ew8eXeetZILJHFZSc32.iy0pZlqRrNB5l7_7NLS.7fx8Y4zqH5yFzMQzVuvHsEjn18cEYvrgT.IwPnMvPCSDL72LQqIkV1qwl9B4TQnAdADZNkPapDlV4vvp94TN3J.62Ua14Dikz3sb4WyAGlRld8A0Xrkcy4YcmaxqDY138NEkvjedJ5ekhGPEVSvcjpjtjNN_88DGlZ_ms1k4f1aPE_eLakBkghfDK7otjsUPhwgKMcC2t1S0v_lyr9Joo5zrsT7Lk0IgIRWRLB1KwnwJ9uRxd5VzVsX0Y.H.0osLDWbqVEZhhQvZKHSPJcVHuUqnzMFnAmZ2XzCCECrFHv.Dl1HKraJ0YV8LjGQK_aW168ctcWWFMyXmuwlm9chJCBuvLE1E03G_dHbZ5qbumRWzDAhoYLXWK3ZdH7qdByNZDSpwzVE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fad744ff4af273';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\/0617459832?__cf_chl_rt_tk=EzpW_lxvv5C20f1upP2RDmbhCaYYThNotDuN5lZi_6Q-1739177314-1.0.1.1-QF5WfrutA6qEAc4vHwmHX95iS44aq5oRd22F451dgSs" + 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