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: "098472.mit-edu.top",cType: 'managed',cRay: '90f497bc9f950a7f',cH: 'f5sH6wzBvuvz81R1AeJv2vkd8khpZzALFztXikigA30-1739111797-1.2.1.1-YmYdxVd3j_VYBgXivnG3J_sGtN9BoNV9dMCmqw8ydIdFvU6IJ4tWol6VCKQstutF',cUPMDTk: "\/post\/1790354682?__cf_chl_tk=4pDgQyg29o3pv8pKG50T1pGVDk1XPI.MQD8b5whuPQw-1739111797-1.0.1.1-P_MeKCqcNwXOzQZJ5KOHSlWPs8K6_xZPbaH5hcedaOY",cFPWv: 'g',cITimeS: '1739111797',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1790354682?__cf_chl_f_tk=4pDgQyg29o3pv8pKG50T1pGVDk1XPI.MQD8b5whuPQw-1739111797-1.0.1.1-P_MeKCqcNwXOzQZJ5KOHSlWPs8K6_xZPbaH5hcedaOY",md: "aV1_0oD3SGd19zA1fQrBSvFbcztAOqAq4YkLQp8ReRA-1739111797-1.2.1.1-H1g6uH.Hi9ofoK.PZKNuRTQNh3Uu3H3utuAX0ZTcnuE8Uox1LN_GqL73kWSJB3vlnkfX9uoBNihvKfLYxnkMAC6DYxB.3qr71x_8264Ss7mBX0RNKJQYESIK252_5ucukVL4o6CR5seI43pJR_zVQtlmomR68j89AZiJYhlyZM1lYUJJBjncmGQduZvHmXvSoa4T12BGNk.8BA2oYHzwmZ3fUM50mPZ.1k9IprFtOsmTF7mnacEsoO2Thb0vBMIrATKm3ZE6NEzqrTYHZ8aCgVJDXXq_cnaUn_qWaHhwwi8Wfh3G0HmNM6D2_lVOB9aPPTzc36Nwjz7b5RSPspC_EnIy59UBgxP9QoNRgSxzdYAaWpY3.aDvW7Gz.1Jce3Hi2lDyt4LINU745MbzBfCbdjOyFV5VNwErJwh7875e9kTtg_sraDS89YXpe0eAUbRWl7QjhD4Y0I0wByMVssbZLivaQIDuLl12KUyyl4BLmAKLBuItxtI4BZwe1uWzNqN67_JBsyP9kAXpltImmrrKf0MjfLZBsqjsddVsmcJlg9OINOTNif8ms7tA016p5Rb_vNhrAnSjTdt5egSSQKRMg1n5wdrctKCT6zOpjdQWw5WhmK.R_KwRlQdjasZbUNDUgO_3UwRzNIlAu15K1uhJYpGzxAWZaFXdS375tlJaYwGXhknjBn0y5CW_SQuGBATI5pPpjxa7NPFWnDs9gJGyLmJgEWDSDrDeNWDTIWjtoN8Cl_H6T6rwm3p_sxz5rv7VeCTK5Vn.zuqi3w1q7k9OBbO2ALkevSLGHXgfeMRRwL7MvKrU3fd0you7xh6vB3FoyZstHpj06dfSKbYlXKYlMOypI0svGk6_yB53pEo7EmCZ52xNMvGssMuUTIilOD2ADrPJt4wKwZwdJM4FYcKPxwNVhWHDpKQQzXrBxGXQINgDzNR7nBbH6tEFPSIc7DFcAzZid_UuiH8xNBGIpXGYnmO.hW7k.QVl6NG_KuAAXcV0Sich7OrLEwYcEGkUXIn2txnOl0LmNQvimoZHbhV5qEEwx6.458ZLNW9K8APN4SLNbl1XMzR60iOUVtzivDa2KJFpff3cSvayk4QccgSD9fZLqutiTK2Mck3qp1NHqwVxAZDJHt.uOQDwg8fCrQkPVW.5LY2_3rrVBXUf.uQkyQ8oFuIpDHPGA_wWQzpdVYwfevbSQONkMLowxknUnzXzxtS3FKnMFGs4gPsjGJbpLoZcBQNR4S9E6f_.sWf9RsF2xIZQL9sQXlnVZ5WNMj5x5Wzt8CknNeKyUvCxOBy6Y1aAg86tvIQgdP_DZwx18e3i8k7GYYk.Yk5b4sfdnqaLclfcWV6NR5Jg59lvGXBVXtMKtpQlnjqvlsNJKwUkTvaBiChxKPyQjwyq0xRAWJRGJ1.tlIi2g5R5HsVwyn5q4JOWdVHw7LArWy4yUwwUNflm1rveyn9QxrZNEPX8.RIycmy1LW10GglSyyjPpnQfbIEHWGlWbv9GxL8o8GJGwQMUO_vOztGRCLfUWm2PZRnmE5uajZAYGOBKQutW8xzTOJ_fNZSWffkVqBMRMYdes_zh1vfeUsbCT1.dVyJgqbcFwbSv.roWsY5g19fAW08VtVS_21TRbsky6_nUOMcGme3hnXVI4SHDwACFc60Ln8kyvZxThvmZTn7XNFQQJRDQprENM8kVGBL3zoUJfitJ_5CxfGgB7m9nLxrlnzmULSVUYgBIs4yK_e7RqOefOfO__1iDnXMKRWtxK20M8K.CPiVdo3aIZVeJ3hQ2u1bUF.nuW9H0w1qttsqDvpaCzf.kRcG9pqsrkunVeOOB10QANZeBrYF7zyEw._5.It6FeHMaLocgxJ6s3Q3FbhXqKYACCVz_yGopwKKROrvU3WNvmOoB24pUDqPVaA1aIGz9rfhpOpV996tZkap1KAfNRH0hJRilLsafyAduTpYSx85rWQNKE9vZL2wQ9ubBbs1VpCT3BQxk1d.eJWZNp1zXI4KejmqmfoBCtGtmDYJ6nGgUYXJmQUFMwAuDSp1cGCCoo08RJ6yIWFs_iuQQEzLWuzdcEHsTz1yEdjyBsO9DDqXB8TERuEdkudd.gVqwpx.YoKscqc2ixwFQAG1Y2vFlfiCWVGSmnNNt2K.WAO0tys.2ioYXe7uxG0k8RMCSRyXAzjsScRQ3SVlZ3yp1Fsi9PsnUG6Yg2hIY93NTlPz6E7OcF14",mdrd: "66gN1dGW004XP_s65yFuZxs3I1J6U7lYUthUcRC1Wjw-1739111797-1.2.1.1-g0qcS13FK7FMXSkQWQ4DFiMmZq7JVx_eJ2i0sXjCNYhG5d3ij0AIsPwcGvmEubNpJ7a8bRvHPotrtFrf9SW1wRl1Mi1cLHuxaK97wKsDkZjHWvQYkXvdycyWNiaBupYxXxuUhY9st1vmUjEce4sgpm4HL876cmxLYDryVNUx8ksBCWBqhSW0zRq3AardD5VhYSIeou6jb9c9sw1YUePh0_CBgJAxNC3knlOK.HL5ruxDv2p2jAu3RdkG1sN_ggMSnqth3iBjM4MmkgeCYHe9aYUqf71ZbWfHTA8j8AqIYkVBfOyeKJQQfyi8ljjHQm28kgJZkMeqpP5.JOLRI9_37UMgLftP5dtJIrL6zexawOOfVj9mAfRR70BZ.4cnDATWvU8yn3PCuKwuQgtD9MM62lr0X2.drDoa1jNwllwb_PTCkGhjmdviSKNfPkaSvoDcuYmLirZ.Z6D9WEn1WsUeHcCG9hw8IlyoWE8_GFlWPBX_Y9rKK6qzWPwRNV9eZU3iAPWu6hbWNa59R7hsekryhswfqYtuU5wPgEtIRcP3cKkRoYCElB4k3bKMCv2LJJP.P.dL9EPOhhlt7_2LHtf5_c76ulLNKvvYtNN8qbBIRs2wCnR6bjsKWD71rITeVyIMRJhuhEqm8vPvWQFmtJAoBLNNVKYONNoA2lq32PfCcuwG54WdnrpM5KLn4r_HjFMdbVKH49NP2ghrR1e.y7IeIT7YTw.1LEVodEvaNAhKNomXSSSZM6CJ455f62Js3Hf.69kxjPJmZBmI7VfEB5o3eE3AaN.QNxGfwmIfHzY71in1BchiJqSRiJejNFFfmhNlECmKUA6bYYXgMFq1Sc0CyKsRk5TahPH91ZBsIX2KlU5hqOOJjjmmFlAsE9NuXNYPsKSeGuesnF8M9zLr3L800q0Bnc_YgrPEX2eV1rfywcEaeVYeyPF5b.8SZiSFWHP5EVze4z54KPh_sooPg0L9H.XD209i7Z_6p75PfrOrExb3lVKgORTIJf2DxVDBswsmE1RfJ91iaNhlfa3adIPNx8_VCgIsMyFwFVhz2YBm_twyTCPrUXRw07nTYWS1752BlPQDgAEKNzvGbRuV_KixsOOaHnEz73H9yj3HrlZQsfjCkU9Rgo1lPXUiTIdQCc_leTw2_6wXyKX3IsjbF6_v_Z_aOPp1lhSM2Iv3pdb5FLPOJimMwCSZOT79r0FVQqfSTPyG_emgUUu.WhYUIRKilLOp1Ixnpnr98lCq3tDavDMXfRgXS5_poF_wwSxokP3ktw5tLhgptLo27PyD3ORKb06kQkgPXOA4IMtmbpxjRpOD_HxfYfAlc27VYPYeBhC8xLpOL4EwBi5OET34TAbrLS34SyXSNUz1ijGjvPOVA7ZqGaPdiAGUKB9qc5iOV2xywpFjrAIkEDG.fUr.zaoNlOWRzecPScKsEHQ0tDZE8kSoX4PbQk_n9G.9o8RgqY_kU.9cc0uyCiQv7wFyKCn489nYn0vh8e1rfWhoFZkIoUXdV1scuEzDnFLeaVeEabYa1Kzp8aL3D9vm8BJzafy6dFiGogkAcKf0UC9gcJqbp1jOk2g3J3Ay_zhHqI1Edh.vR58ZcuAbKNP2I_HK.NzvwTQv2OSWhu.R8RXesDhnG2XOO0FHVFcKLVRKiXJefSNKue2TXASpjfjENj8bVDQPxvtuT1zI0.a0ArzfZwSO22VPTeoJhZGQw8D5MihJ6M3lGuPo0TeDAv3KgCW334z6s1UOeNT0DqeLiorm43RhWVwPXu7RCr_aGDuGSVy6dypZ7U_G4AcmZIFC7VA8emZXPQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f497bc9f950a7f';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\/1790354682?__cf_chl_rt_tk=4pDgQyg29o3pv8pKG50T1pGVDk1XPI.MQD8b5whuPQw-1739111797-1.0.1.1-P_MeKCqcNwXOzQZJ5KOHSlWPs8K6_xZPbaH5hcedaOY" + 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