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: "468116.mit-edu.top",cType: 'managed',cRay: '90f8396f5dcd20d7',cH: '2JvumBtquGP1NilD9PMk30o03SjaPBXda5Zu3p8uBxU-1739149877-1.2.1.1-FdTeAi1yTovd3zYYcT12ukTQbtWOku4lH83H2hjHCrNPKsnAHp5vmIQAGdYlxtTo',cUPMDTk: "\/post\/3257691084?__cf_chl_tk=3OMO8O.AUevC8iRlNG3lUvo_CpYQ9H3RkT71qDX35gM-1739149877-1.0.1.1-BW1IJi2PvMmS2rCo6IbSiFytLf4MAoUhL62_THaJLNc",cFPWv: 'g',cITimeS: '1739149877',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3257691084?__cf_chl_f_tk=3OMO8O.AUevC8iRlNG3lUvo_CpYQ9H3RkT71qDX35gM-1739149877-1.0.1.1-BW1IJi2PvMmS2rCo6IbSiFytLf4MAoUhL62_THaJLNc",md: "iL38QWR._w7hc.M74NNXkCs83BNLgiI8bcv4NRy0T5w-1739149877-1.2.1.1-kw9lwH6ICLGmNhiGMi4DQ3BufB8JXVrECZLwj3RwiZNhlolSfa.YFedF3qG1qI.OZ6q3kganhp6YFDDJ_qcVgbQr938l3Uig0gEDChumVtd0GytBLtpDMC0AlKLaFQtsL7ev9DvE1EW8jrj7sgQVa0gsgo_jEBXIw1iVMkW2IbRnIut0GGowKpHrmHllUMfT98TtzXYaYq6YrCZ1GxzObKdbzXdjHkFZ2fPLmkjgZY512EMr3SxPzRHkXrfac5uUUp4UF.j.yse2NO8V8g1_5gBZHXwx1pTeb9uQILo5yFh1IONFca.1vOAcrMgGoiUbGR5ODVOBo4jBv1pq7rpFJbXwm1kSfPWskxNIwY5QKenDosdQdM3QM.D_py_kOvGTtKMEiF.bZpO_j7gMN6tbr7oo9K64XNxDx78kkTvpnIFC7xWN2eamkkqyTQkAWFkmr2fJmRCeiOtGU.AjoyAOqtj5XjCqtPi3ALD0VK1b2h0rGcB8ElphBT5isEVpdSa1y.Pqoziw0EfyrOIVKFTKbUBdBOr4sr2wUaJISbWsbLxhCK9lrez16x811_bPPobPqRbxwdFyfa6KNK6bYKfxyIUI9RWpTI6sr7r27KY_Qqzk6sUeXh_oFxbhewcu.jkjEZ.EWsD7UbS5knOQ18BiLMOnGJHmtjYXggG4RW7sYx1sSXd2urDFR1CHdzYc5xatYVKDF.5l_ZNQUFpwS0W2kw5GvvuKYdMI4POIQgMUsiIJL8Mi1HLM5UAkY57fhx16KSX4Rgupt47kEu8w3btJZkzQuQqVGHedIYdx7gEZCC.o4qJzDgc2mXU4CwTGbXP1gCpHof55iesrYWT62.cvt_rrnaWpYnT30wnc9wTE3KSOgncXJDfW5c5k8t4qU40nXYaCj8l6.By8sioeK0CDW7CGsoIKACQ69zuAciEq9vV0Als71WdmCA7AeYBhjroCpqGc1KTj.ZAP980TOKCj7StW3s3q0haJpZLhuRI2QmHPiHVwFUyGYznxFg4Fuy4CZiygD8fbZoOg0dCvrZAueUNOCxtkmacIVOC9SecmEsBRd6HpzxUA3VIN.7a77qU_FQarQhCjmwFW_OSKZe_JKQxqWgZIdBBxpSk68Jy03KvAJtVBBQwg4oz7P17gXevH60.q4.ptdkTY3E9wk2PnLoXti8.DziBLTIvDhNSYfxIg6qQhe2_5yy5AMSpFJSRrVNz..CdOT8jscV3Hx3L7Ya5qFfIeQ05xjBtJ2J0Gd7Rb6eM3xJQ3ctoWQfT8y0yMPWCbZV.Ngvkmn.7pqXiteYBSkJcFcxeRUGxhQiaOt8t0LghQXIO83U5Taewq6Z5EM5RC0JmYJG7HzFLGZkgJAvHKCrzt.5MhKcabOA_KSzu0H2_ikg9Um2Vjxn7nNv98vGZO7Bfs9UtRhK_aE8hzHQT_HrwsmY1r1leFy1ZyXQQAZ2rGka.BhslS2.pw5mcNOvYZpprco1Fj969LGWe9qmRXsdL_tdJbPV21JJZuy1XXCNyfnByeSWp5VoR2.GgBtWa10oLZKoy.tfSSJqRY0scrcS_GtqjfSBBE37xDgtcM3qdPZW9JWhnNi2Py11pNNm6sjXVnBAab4OIN5hLxaYxEXIQqYQMAOtADJTT.fkgYP5y3LkD.uFHV_nXq8AzffH3bA2RjHcCABbLZ4TXvKmgyUMYH7SH8fzV7bBgx1VLtpBGoZj1MD413ty9PXyBdP57EN2x4PjyPZzfwfARFHOav3jf3bXqDtyjKu47ZLtNPXbFSOsSgG2AXj842_GUDIwXNNwFRGvG410ID2VUdMNrDDNWbhMgnNIYXVMBVyrzzeebJACzseefSAe.nDFfDyH3ThP_Uq_jgHXaur74D45jrBYFnLR46GWFAzCWO04OGeuo8qsuMSVklMWnu4t2VqBtszT5sA9YOHiETls3D0oD57.wxPiTA8rqSu8lMd9vxw0y1oZ5mWN97QeeBSaSkEDgBC_WxaDLkniM99cvj8jWdQUMN9elGxnWv6K2Cz2pUYoDdtjDeWaf4LPC6cQyDjsIhyZxu.oly7H2dijhS5lxdyOGC5uOpqAtX0pAA5blK3PlTdeOG77mDNjyQFY_GQXqJSfp8ca9l_MpvUjuDo1EYkVQI8_vXHa_ydkY8USs6wWMiSdAhDhVSd2F3s7OTG5ITgLCk6yQuXQHedkntTum5poeXayDhLWDKdG56EcM",mdrd: "95AzCNIvAapPyOfPo7sxJ7axPxelbfFd0xNKT4xzWjA-1739149877-1.2.1.1-uBWUWTSxkrcnEvvZG_7MFCOlNFfahzhEa8nWWNx8egqLAiI08wgLRJ0ug_4vQqrAVi33s344Q.yzfOIMQuCnsxVDODK2IqXUzcJE1f81f33H1vmwTPRfewSEYtw.GWcON_YsT3UT3r6bbpOr33hmPygP5pL5vGS.sPnZSjHpuMSTIDd8MMhLYZMC8pVIFZA58uY9DXh81EnZtRQonrHcwpmONAG_wbXlA1kGawcfAlJmU6SKO_Bd_fi3EBY4_b7_WbJ7huPsan.KSxzCBrLj5ePuwCA4JtJN6XkrTrQ6xQdRLEamlbKyvXPUZAZ7KUOgySt.8AdnIhBs.y9odHb63Dkwa5Bcd9.0sLoUWxUqsoN5LmrHsUx33JN.VBaHQynUfoTiYuO22SgIUAbdTrTus3Tf.oK3LRZ5vd6J95_VBGLAoedgc5qyvEcrYiQ5nptb9uCwhoo9Fu6Hh9Wes_cM_bbyMG650yJLyPaV.5aWvHJxloP6.xabNxqzLY.KJ5D7I12kWNuXUnqzUORahneJCecFDr7jREcdJJqr4XY2mec8B8B.WnkjQ6oHQmxmwH3.XCvGu6V0F8K0GKI8rSagxj1lMrmhEJozD6uYatNWwIAq0G_Xrd3HKyedUaa7cvr.cmIqLkzWPWl4Z1ZRF4YX.6zElf9Q6_fZwvGml51ztbLXLyNon0bh8a2f2pTlsgA3PqWLuFdcsnB8Xpj9Biw1CQVR2jGqUXdcmPwBZsm3G_.6ln0kd5N6qwS5R5mC_hU3vddjsU8c4S_zRIlCxoOw4XYt_HThKPBmcO8C_NGYZj0uUKkT18Hn5IhfA0g27fb06V7T8C1dLc3QiKvpmLlXUC45dhC4yAw7VMeoNfCiD4.jyisc2tLjWwTs8XBQA5vGBjAoakQRtgIh0DHjorW8nkREOt.PTUobVQAMizPAh0mIjw1DhJuXcsRn5uUAO3w8KBs0bwcsRq.iApPZ7tLMC0JuIx8k_sRegBrNG3bCVRQ4FOJUNW3VKvuhailM66pf33Eyt_HnU3eoD.qjw6Y4y1K7iMaGMCU6HbbtHinwZ.ojZt2ZXR.UaA4KCbMwl8sTSaJJz7lZhcikZkf0JTlDqB1LjArBkKP6HrSdXluvnGOG8V2w33VYbK3oL.5.5veYwICa0vQAshuDU14e8QaWBLAmprBmoDjSLfNpdXtIishUEx3ud8XSJtQqj1lTzMKsKY7SKp_ljMp1qbezyhdVq0VCRQf56O9itfWXA9sp4fR2JCy5mLh52c.fwYjCD1WthZO9PXIiWKWN7aaKBBMV8wMGDyO0kg1_oGzH81NJrRXkjkn_xT9FFPbJA7LpNorgzfLI_OK2uvJ12jb7srqKKuysdc4ENebb2aF3w33fMhBwB_r1Nqb9Mkd55WlgCbjqvUl1JSr_rbWERVpzwsyjcdNhQDZcyoS6BfU2QDc8wLSpIskpcTI3vDMMFC1xdTmrzr0LMoSXUHTW_R8BvcOgjN5p_A26WnUg9Eb3YRM_By0HMN2s0_PJseBvglk_jGH6LbUK8O4y8_qgJrz321VpXhFHVFsa.vjKu0o8HfXTHX1Q4r5q46fyjDwjUX9gP8QVDl4NcnZ9.Ym9RLiqV3tH1jZqUnO6q1QuavtKi.4S2J1xJbnWDH.1piJ3lxZ8dr8m1SIQzAfUHdxb.PWC2fcYZcqqcI4_sRb1ZaK59D0NTxjcYBf.GYd8bhq1kKj7FLevkdpEkEVYfZiH03pQLhtk3znyIFo1cdcuWN682XfA17i9wmkMARcSjbzMkKayXHBM"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f8396f5dcd20d7';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\/3257691084?__cf_chl_rt_tk=3OMO8O.AUevC8iRlNG3lUvo_CpYQ9H3RkT71qDX35gM-1739149877-1.0.1.1-BW1IJi2PvMmS2rCo6IbSiFytLf4MAoUhL62_THaJLNc" + 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