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: "093277.mit-edu.top",cType: 'managed',cRay: '90f3ac641895c995',cH: 'jiKTfODHNbRDe4HnKxP8mBadYKP.ezR4OgTmfzi2fPU-1739102157-1.2.1.1-5mKbYBBEz.nw3fZ_kB2xJ0qohs5fONc.T5AUNxxSVg9Psi2keK.99rpDepE._bAn',cUPMDTk: "\/post\/2095847136?__cf_chl_tk=j9qvzi7_g3VLTPf3rxJksQ3S5_sJCCQzwg6llhhVfoM-1739102157-1.0.1.1-ckWg4xYyPeEYax44JVKIMwfBr2p3JsZbUjuJxZRBhn4",cFPWv: 'g',cITimeS: '1739102157',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/2095847136?__cf_chl_f_tk=j9qvzi7_g3VLTPf3rxJksQ3S5_sJCCQzwg6llhhVfoM-1739102157-1.0.1.1-ckWg4xYyPeEYax44JVKIMwfBr2p3JsZbUjuJxZRBhn4",md: "m_z3J2O8KQRw8vNI.YskIAMx8vO78XPWzIPRSSyLD_Y-1739102157-1.2.1.1-rg_n5iR0id8UdnyA9K7rUMzhGIHh9uI8ygTuEIH3zdN0W2cK_n_YgZi_SinOu5RiOpUSxMtbGNWwOxtUyncHVU7Erc4w9n60lw3KD4qZkbPgeREZNRsknZrg256C6IMebeI2dLNTMH8xTM9WBoUz0b9h4cslo9RFPi7alk0XJBRFNR4iyfngttpjfTRSuhtIKjYfwzAx9cQwtMuAwSmJwdeU9M4HyDTE4R5Cg3wT_MPZjT9dmgBaNrfzB5bSb9pvzGiuY9BRP9VIDKrd8W_IP4B74K7ztAXpx_vZuW_kfWoz.LwMIowRehKUkn8enfwXf22yKNdS_GMLi0JzpbsPpnLNjRF9YY.qIhjL2LjO5EY3EKkHtFMHebqyypwcq8gVDt2ky8wJkfJ8So8aVEKYQmAWpCsxoFnvJn0JBE03wSQtKugpgZV2pHhAKhQQBks4ontglgQDlkg4vgVIMIJSAoSAUosq7aR3qBezPB6FUDeS1pWoq0ssnVEoztV7oiPUimTG2hX_oPrntbTKnPQqev2PHYkgTjcxe03BcOPO60vG1CbmAx5BBm_1gCzRtbLTVnFuqiHv.EQmI3HCRWzRtjKJAq8IhAG3DYGTV15pudN706z4rIc.gSFTlAHmdAqaoY1efaSTqG6PB5Bhew_IRxPM_K0ulfkVlYEnguP97wMfIQzb3p7craI_wrvRb_P1P_PaeSh9Gj9Kf8EegNO_CNZ129ytXGm9uC0hJl8cxTvVdRMCvZVXxGkkhdZ4dnUx16NhkU_qlhCoygIDkvuSfRNghMWp.2vPw8y.MvzLZIR1gBTlYWJUOgQk947oPzgHnf6Y5dLfLr8yYFM.QvfRza8BtqStJXWM8wvgdZpovAmwfL7FkBo.lFBooHM5G4Jxlxc5pOOA28tyoE9p1nCcpOIof7Cqf3vv2fYnyZ8FwCj.2w4Lpt1U.vCWiD61GpX8csX_MfVTVBWPFSGiREtyeV1j6jLAcgI12VgYhsO9rzKA9idi.7Lw9KNRKKGne.ihL8y2UUMA_Ewrzh1iZYOcFgoKaGk27sIvJs3OKA9p.kamE1kQXxVw82q14vVrVITX0Cc9o0vFVdxUJQWV6NvLteoNoqFFZWfBRrupzym95N3sWBj.HPLtC3i5lyeoPNxyJUGA6UyBbVOgm3iU8ArJOF1VYi_8VeQrGexXIPHpeUDgTiFoFRZOskpSzjq7DegtZtDTBcJQxcXwUU5OAEqyAJ1hl1vaTpbIOaVz6TRzvyd89qG992A2bwSTziuyF8TVACgUgIhAgIPuRBc.n0M4hVIPRr6_zcmXZycxtmIzk0QAH1KHRU.mbNbwGVVoRHYr4gl04J4AwUUkZlzmFF9jI0gGn7_pDJtSoX68rO1mDigoXBa8_Lska5YopBzKpXyxaK9bozQsStlMQiEjjtgoCpaVdw5TQ9FB6ljqPIq9f2oG1o1bsJep7hMCBEZ3aDNlEqlsoop.rPtQqvSR6e17vv..NqtXFRpooPTXASds.QclnaaPh6vQh7A2gEWN.5fU07P.mjjScrQo65MDPJwyjMq0e.ZVtNCKynSSmVjiSUxWfS08Y1J_CrXLqdoTYmXHnK4H5SJad1V12fwzJoguvfIkODBe994kIkfkvnBmh3YE03EfyTmxXpp7wIB9LOGA_rSzWUcW__0oljpVJhQld2umsUW1NZru5byeJ8FqsiM9uZY2Zbto27aiVtr_gGLEo0w3CoIHBz9SrCS2qjOcdufYgj5zkTLx77nS54CFPYb7hNLX0AdbRwoq6xs5QtYhgELaEzhbAAwlEJruYAemc5A_dQ1kOz3FsKVI.JwBBmIYQI93hwPKZ3iQoI9BgqTDZzUTki_Np.tRVW10IHF97fyE8NJVirtYuiwWmPSfH6GLM4XyAwFBcPp_pRbQRx4nl.if9novi13hktto69DOJqiROdLlrsiIupCj2ML3o8fDkZ1ksgakWLM0eOa2SHzIs1PGRb4KeAdVn4aziLLRrtjrmBT22hvzT5rRnjwBy515ifw9nYCSJ0QxNbFkBzz2r34J3dDQnxlHKKUC5a5BhN81pAJ.zLawLnCtIF5vZO_U85aRam44Z.fC6j4em5UOfeRLy_p1oTUOEmExNtJK.CQMigRvnwalW_oZxzW4lIWuTh0oXzdpysPih.rcqQ_B04hnfPgOawIaz2UD1s42yueixqiUmq1nBKXIlO4SoX8",mdrd: "ropbHLTU0rUiaJoIcyBoAu1wtI5qQdur0FzgOyxC9xM-1739102157-1.2.1.1-evaVSVFXJgch7vugWiWeG1F8jy4UM2YBx3mKiymqUYZDnl2hs8Y2JOx5w35Ug1y.QOE8KrRvN6tBHtB9Hui7SREKrI1_WrOmQgd0.4OVxEc6iiIZg4NjD9s0Vrjovyb6prNTClB3pi7unZeZ882YsgQNbhaagOvBz2eHw8E2CkNab9D3NGi_.TAo4Go4d2Rjg5D9IQQMszQlFKBgLdpLGuCWv4FTtq7NyHbK40gXtPR46OPlbh00nwOEzFLoCAJC4zQiAvodWtrZewE3CbxDjP_MtruqsIwdh33BLp5dLgwom0P9CBbFo4w5wH7a0JqAPVWetEHTdIm46XQ8cFubavP6FWr.zxk.K4ZGy6qET49qbe6j.puxTqqTHzQnc4TylFMBDKi4sqQiOYDjNYR5N1Mdt1Bg7mQA5IDKMMlPbcPrxCqsoWwhTqzRvf.xPjyvXD8WTFD0x7DAqazRK.TT_1C.KPyDKREutNE5vucczcW0Vpb3EqejKTuKDxmu12.N1JLPnsAJ3XPeyE4YUUqqiKo5Sgy5HXtpQ7ZAIJ.zHBr.bzXZjXLs3HZAps1aG6B4x0.6jHTNQcjkcKf068.2gkCwU4AkpkrvqBtqQB1y7M0M.nh5zPzJiAtCy_5Bsx6BvqDRyr_WJdB5A5lfJ402ETk7sZ7duuXun7yTvqQn6Fg1E2zJNcx0KZdu0YtfCHPrA3CaqKyHFcobVYS69e4KLjkQ2xmlXWAHDEmEgEWBBw5dy8CYuH5o5NYlB_H9q_FlV2KMu2q7vWfRNXhlsqorsYjC5go4MBFDccLd_5OwvcUE5CwYJDKL2n18pedPcpt5hW93G25VuETc6v.anWIDs7hlkwI6zFb4oO18TsD8ISsvbVNQVuAvpxefoigIa2a2iXAUodraN.OeTW7HEzWnKe7ADtYu6kFwsRJNbglP5xfjXW90sNHR0HEZ57jYgkoSUYLPj25xO8idjDs0andxoeCgsFOYF0ihyF4c._uioYH2kr9qUIj6Ac52sS7cB7IysUEi9bNdIuUj1nh7LTG7SrhCdBvMlB.Bf4s_xI7K5EUeF3o2NCwfhaYmu520wwOMvqnb.nz3eq6NkkW4XXj4kyzaazIz4scAnxyQsepiXvvX_N3WJjfNrbhcOzqz.aSDOuJ4ukXYlZoB_nwGT6qc6VQefDcIrN_f8IZYgIFed_Qltl5M7AyzmNvxPzF4IynVlaQhVHxjLeDCnIAmNUeHxDYm0.0YKL0RnuM8YQ8BtAdxSh0O6cDyDxHbyoWkkGTjjbLZ_ukEL5OhT3XbutFDWfP2Uqm_a8b_Tt1Kk3fyLHBNWC.s.TBgB.FMR1mSJ4pHskTEYoY4JB8jb8fYQAaL1t8kW_.plELaUzCijmrmUt_IzMBRftH1ksR2YsmBhxZwKYSTt8uNv1_DTbGio0jtxcAoRoxF06RbTsegoYjSYy90gVtiXy5.PrlpFkm9gd7n0mRS51M9dcLeTazW5hUbzPABBAnrmNIRgcRi5hPfkJyHjofS.80V8FS7f17QHQ0iSjNWywnnRiV9zv3poFk90qH5Bv8n.y1cWYAwjBNfkEimQdXqw0WBiogbopoOI8dEh9yNkFS2b68QaElAiCMSM9F_Wb8eibpO1Fgn6sFUxUDMIdTOD__IB0DNMoI1GCR.bEhQ.HkuLx_AIHXrkCvffyfG_QWmZDZf3L.nXHBlS.gOG2ZZe_HaWk7LPDoxbrguzGwEXt3WxIIm2PFIcHXu5xdo2nXvE2b3_qnDlae4JXaz5BOXNBe2h6sujIurlcBW"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f3ac641895c995';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\/2095847136?__cf_chl_rt_tk=j9qvzi7_g3VLTPf3rxJksQ3S5_sJCCQzwg6llhhVfoM-1739102157-1.0.1.1-ckWg4xYyPeEYax44JVKIMwfBr2p3JsZbUjuJxZRBhn4" + 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