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-789594097067.mit-edu.top",cType: 'managed',cRay: '910fe0748a108848',cH: 'cIA3Mxb.xqV6a5KObA.U6GCswS3i64VxsULOqAMRZ44-1739397891-1.2.1.1-eFR.5fbcbXMKVFB.sMnGysJIZodc19VBPQ4AJ9Q1Fm8rIPghbLx.Bvipk9eYc1Ge',cUPMDTk: "\/post\/8510723946?__cf_chl_tk=YH0oMgQOWxQCdRvsrJTEYdG0xCSy5ol4yJwyL5xw6zI-1739397891-1.0.1.1-Pup1kgmW5J4F7c3BY81KUYTI7gZ8tUjesR46gq7CIdc",cFPWv: 'b',cITimeS: '1739397891',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8510723946?__cf_chl_f_tk=YH0oMgQOWxQCdRvsrJTEYdG0xCSy5ol4yJwyL5xw6zI-1739397891-1.0.1.1-Pup1kgmW5J4F7c3BY81KUYTI7gZ8tUjesR46gq7CIdc",md: "MEaX5pQZ1dYEeoG3Dtc0stmh_OXp1bEZqmvSlEiWcEQ-1739397891-1.2.1.1-opOOvN.QxSudaHyVf.QN.Yzyc0QsHb3amOS7u2U3WqcjzYWdSidtg6snGCuzyoJo0IRWDZCqOM3Z1DKPnq9YA4hhNDllu3ybbZg9iY7fXCpgHT5_MW0cf2Z9LT2IbOEEDBCvO8H7__CSgIMv.2SE3eBz7mi5tpVwqDuIY3MfqDr_kWyOLcEFguntO6INPyS.dQwn5JUhCQdWyQrmDI7LgfgRnXkU2TdaQtjf_WbL5BUrMBjmL38uvgQQvYfsLw3lQj7G6hYuV1Qf.hXnk8XW39.2v8ZQ4JR9RfOGx8tU9D8eIOH0RmEMTtu7JaBOd0J0JcOCAI099RYPwHOEBh14.H3JNl5LPCzYtmhqRXZkxv6LbFPqmCsTEynW4wVjGr4NPkdZa4J2msAZxUrPKW0dwuJChm8jQaTkDWi9q.ilN4CVYNCh0tAelAtLqU1_oD7JcNYVLA9lgH3ZKe7qVvpnrYBkB3dnHd0U5mjqFY6e1_EhcM9JcLteQvx5eZzPzIbzP6RhggdjFuN9BcEg2lutS.pc.Dxmw6ScHYlZxhfkI2fvzq04a7BKssO8M7wiOHzMEJpw62JULlJWnVrM6jncJtCeGJPQsyne0MWOg45uy43UEv3qB_eYVKLcouyn4aHWhK0w5t2uyyCMgOpTJ2zo8asWOEaf8MOEwlOuLV2zjxjPWxJhNjjooI3.mX38dyIz2DXWtJy1ViPU9a22Q4Hqfl8OKpU9yYYlJ.M9wSmFdl.OunvM0k.AdMcEBF.TPiSote86isfoN5WzL0ZTTS4bW4kg9jKPFmho8IvHJvvbxKAwqBAj6XpE0p3IPDN9dBEphR_Rt_Pd9mTL9OK.uRI8U.ayCQHE5KREmrhpJij6AQzIKUZ4tLuDdDjzOl_x1BmFaLX7TPW6NnqJlbFXfaRAmwAxCHUAF3y3MlzTiT6m9AUwUeWLTqew7rqdgFkDnJGywMgX1cK4fFv9qYsDz6ajM5K.RUW.Hrghj.WfsiEQ6uJs_LJHvcYiYpKmDVwQ1x92tt30zd4XhGG20ZjQEaelx9qo1a0_Y2QmwEER6AqxrpftcQH0CDHJWKkgu2tw7.6R0.69M8NmbBJ0Qgj7cjplxO7zCuvdrTW.znxGLUIZKyqWDAwPyUcqtoyyIIHsDh0YtflIVmDK8js5daBClqTqDc27IflZmUR9xivcHeqkRltQwlp12DT5syvsBV4zeSFJo6THJg.cJ5bqHwIlUpa4lky0nnwtl.etI1umL8s4L4AIS.k5wYg3daG6sxuBz33o4793uqXHKPqRnjuasJPoVw9spOP__KBsn88Z8xfUarM1qkqFo2f1ESDtkaGQF80OLEhnp2Zm44tqmAWwXeS5d4Ci8B77R6tXFzJZ38eOnXJ_SUynUr3gHTjhqRFjrB3ifasu8rM62t_vpkrHMlfLzHKSu5Dc3SZG86qvKzfsL2jSOWHS1.kWFG2jRiAw5U1SkpSJTRQ0UJw0yy_wIlFXNd_PRjmAJ_97q5DHTnLh_hdxHiGRMOuoBuUEwygLoBbIcm6of3xu_ZQg_FR2HroRdg7kmGevcl31KAmVRUhGLaZadGdJdjR6fA72YQK77oXfOUgO2H1MntbnmAk5FSmUY9R0eIxTVmXQ8uitZ1g6DLJVzqdNHEcM7MKWkbyMus1MXD9gyHIEr6XZ.dnM8QQG0Qco4m445y4Hmhe.hbO.e5qYVMhFmnt.Lj_pp0BGLMLQPql_R.2.AFIeAXZpAZXtyExwxI3jtsRWsPN2S9byK2zyBqScVMJHVIAnQMeMmYKE54T9aocQt4hn3xRAedjJ8w0Xe.011_D8M0QjHfmXJVnoHqU1FnSx8oNvJCSb6Ljhz.cGtn3cVPRwgDuGzddKw2uEY0x3fBODsfitP7r5StP0hbBNTflpPb7L4HYgtzEOcVRLu9NLQWHd_v3w4Kcgd9S62.fqiyQ_Xet0wV2d4iPwI1oDEdS9ifMXFdpITf6h7YfcVRFEpIYFMNeGB8oKsHV8EKX19Y.kLM8WzyVRSuxLEcAqtUEEvAEW37dqpiVC8TESh98hIlW.18744sPh8vlZYm1FLUDHkjReNsVbBQOt7daA75HRcAeibF1BSeNwfTTre9RfotfxSgzRRJ8tk6K77VdWvvuKs5a1C2ewZs5qcQqmqXI6IsBi8ejRcDdkgsWIq2zW9bMO0zwCWnZdUZHe3qS381YqSd8ehCa4HQmH4SyBHHDACzSSkoV3WfxN",mdrd: "wfh5_LksQDs3LGx9W3qEJFvgI3wCxoI2wyvkoQmf1pM-1739397891-1.2.1.1-lY68vfztILYswvhRz74mWBM_G.7AdakL_fqgIMf1rL_EAtP7Z1zPOXgOSAShualY1Twe_c3.brKmEbZuEYtRSnRPdpyu34O3QgzsXf2UKeV.lOox76SXpoO5LO7b48KESqH.x8aPV9ARsZ.xPaNSnQFHU1bHGxwcVHiN4DWbZz5OgrjxghJUcH1AhiImXNSX34vjSL450mx2IAcutEXEe8.QiE7m.tvzbQSujMjbcufUnYMmlW9cfh3KprKDTjwj3IYmASu5LVgfeqbivjacJmVW.1Nhn9j4PKVvafLuwsdJgyFaizAt1ZDRhBMm5XVHvX0pvs9DhS_80GL9GtjwKwfgpq.yjrbRI4pNrkIWkl9ik5fytEQdtrgl5bcBgbzYydy8nrTQOX4_qYmv3PTH3qjEjHRr7mSVWPWNWPCjqE4VzWHNMYiMJFOmJJQzZ0p6pq62EilkoUTQJX6SJaP0aWEgG9UHdcsWquogpmDS4P3.VSKldx27_HFTKOfeLZWfbqmkgDh_b1ANSGYOvKTEaPBQdttlkBWlHV614W8UuuGNq_h8rT9142edsDgo9mpI.ZgYfIHDJD8OoPCEJIY3U56P2iscSLD50mvu3_b4_xS8aG9ZMCqQM3FQKTLpgK4AOqqcZiYAJfvZqQHVJdYEKb9IkyEj68tMjCKWSCn12trjCgXG1iOv.wTbGKCb_vH1R9qF9cmTFTfW5qTnIt8rTszXQkdm1_O7zUO0by1.ulhnKNpYOVxdMWy38qy4uEI_FkSlbFZRLFDjRSINYvfDkckov6UaqXruW86Pa7LCepAhkZbRIZVfNDdBsP9oU7OtmcVeQPVqor2yr8yOBxIrgbwQVrGLBuo5ywFWTFtRMDpxUGlZrRDP_DYB9GDkPYY1l0Ie8brZNG2eh9i6m_ImQ9SXvcAv.0nzRjNezgrQjBCXbz9bnf.OOWuD50HqqWPaikslOEOCwP1MgjAVSragrneRSJhJ3I9zwo8nQxGMwZjNUiq2VtNnrV.40v8pCwca.dpH0NjysFD4fiiVhND4mi.dbG_.vRLzsoRnxCKH5c2fzay1F96uvJA15Xd1IPK3rhv9qnxlipANXuYvRPhrLCUmVhUaBXJVAvt5ygg2OkA2Msq46X3Joq6DtvqUFjdH3_kOwR.pxuoYCBzqQ234836kPnxxCRv4ztl__lgsAl8Y_JIGMnSeDoWKCOnQ9BtiJo2XrVBRCWFlfwow72w7k57UUN9yxAwOTcD13.iyFffZp2RDEDICb4ejOmQrYnoFRh6vLDdB3c8j4ToEn6w5.DvJEU6lyWG34k_qCrjCjt2wXiYpTPALFWf83yl94K2vhIOZCKf0Zhtuyo_WbDdbeEJAtxPQ3cFtX2H3tTQ9m3gj5mblsYuw2jsEl9Hq7tbIRiNIzogxIphxsRAicvvXMWtDg0j5KFL4o3fvYVnbFggMgwHRXr9QCyIerqpjXEZmETKwuwsmBVg25gfgh_VAPv6qfBe42NB1tQyjU_PZGmSAi7AxQfGARh04LV63_is9l2chckH_XKMsBTqHpK.AcL4XGT3LXiRaZng3hhYifRqA6ulN80x0dFVOwx9U0hWFkSFy6DEwW3x8wXdpL_qzakY10SqrXkiMM1Z2B.rmTTUDtXVuvJbCPjb3GC1wPo.bK95S_Tx387n12mp4zvECcHYUpl6z.xhryGJsH8.5bqiCks7XJWNSs8fyGUspAyiZ_fe1AtYexKr0Ad1BkRHWGzxWn_lsMKSLwy2twT0gnafMWFo8h5qKJcwq40whYcX97ylNOK4yaB_Qp0L42MMPSw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910fe0748a108848';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\/8510723946?__cf_chl_rt_tk=YH0oMgQOWxQCdRvsrJTEYdG0xCSy5ol4yJwyL5xw6zI-1739397891-1.0.1.1-Pup1kgmW5J4F7c3BY81KUYTI7gZ8tUjesR46gq7CIdc" + 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