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: "840505.mit-edu.top",cType: 'managed',cRay: '9109dd32db4256ce',cH: 'tYIOjbgptaFZ_3NEe_26mGqqnBrzRuo796EVGgXGNI4-1739334843-1.2.1.1-8wKNCRVvDu2T5NPCE_knCZyccYmWkumdH0JvxTqpP44OBXrsEFDwE7p__PdHbOGU',cUPMDTk: "\/post\/3650892741?__cf_chl_tk=cHblbGZC.SgTFr3aCF3tRsdTzr6oqadrGxmi_Q1zvZ8-1739334843-1.0.1.1-z6LQwf_1QUSyZFY17F8KqV8_rAqmiGHoh3gw9a75b4U",cFPWv: 'g',cITimeS: '1739334843',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3650892741?__cf_chl_f_tk=cHblbGZC.SgTFr3aCF3tRsdTzr6oqadrGxmi_Q1zvZ8-1739334843-1.0.1.1-z6LQwf_1QUSyZFY17F8KqV8_rAqmiGHoh3gw9a75b4U",md: "ITH3KIvzi6pN3H3QKkbwvCe8ZFhUH_j7OX3Mo.XXdhI-1739334843-1.2.1.1-kyV.isOzvxKKptd8WrfEq8vKfNo4NnqqreUoUIAcnqD55fFueFzhT5cgkYRXo5.IvU6oNmu4R9IibgqjxIk97bNLN_vuHMtVj9f0rSGVDXNQHBqJQeVk9lKDZMonAJDZ1FRya8SCDKAmQJ0rCtvq1CxuFeszMfjT6oxot3B_7iPIb1RnMsDbDKx1sQl1mPL.SrIL.gtmBpBtxJCeH_g7MZE9HHLuOISbfwlDhptQbLeGozCwrn59Blf09kg5tlgKPAyI39ke32jl5hIJQjGGN8neLzxrd2PlL6Ls8hD2IVP4ka6lvDo8WvlO503R..MvnVhI0zR7SUem.SPnOfaLnVMZTB962hhm9nDnY_mj3I_1pznUKJjl18.Fef_mIkjumScX8louqEmDOz1DpiwfBUInvBILP489uYhU.tO9LPD0TI5x649o3tlopS.qOkLhhgDgRrmuKqG_ClwgMZ1BJ9bP31pVUrJgerJMo_.R_1E6M2zwaIovDhLPYmSbKRV700WXrAf2ZHhlV4wmg6MFI2sGR7r0JG0cTp1ZIm7EEImwJT6ZH2zbm2ocZOgtug3lenAgqwC896DGLF2ceIzTQMCOgXOGTqJBd61nrJNRDrOlmlZYevIBgvACI0RxkG9K0GWe3KBU_kpVGG4TkduEU0L90QQZSuJm0d7ggubva9OE8S2t1mu4GEIQJXQ2kzI5FDI2B43DfbHSujpzIlJrQ8Yr4ho8pLeBZiijVqWe_nlhxBfxD0veQYUoj5U1JgM4g2LDRJtmE3fXWFxYr_uAaVpTHDNTVm2FbofSePGUT78AttIz2Oi1q_3totPHj2vvyf9Qzzu5tEPxoochc9Z5DyjpZ8r5EV7JQEX9eYpNgLafyae22XSChWpadMrwDi6EITiUhoIP7tcOhsXFPmvzRI.7zqlr8c0P8zdtnC67ekgNX0_l4JuLhxNFzD.29tJ5D.5VXX59sil02mtLAXCLNue966rqIbwGgh_EI3XVjmJpP4HrzWR4w4swJwZFvDkAL5RyjBm7GRbgx7SrIyaiznpw7ccv2cnF.pzrp5sV5sNV8vmQtlnfrQc1Efp.UGkNurmlwdEEtKBpC70.rDptovnnCybVSQ92khdkLRan2kr6deID1Me6QrN58utWv.DeBNA9p7yOEtM9UZ0MuQeplzuvxzqn4_p3joYOdLNAnOkKN78c5x0eF3SNGAMpo3ydsKDwybCMEVDF5yOsa0RehH846ZtMu82JLampQu_G0.iUV9leV09zlWMywyiHC5kcMIcpFq1Yewj8wkfnpxD8anpXnXqn8VeaSsuJV81SPtwi5bTPzBQlIj7XNKx8f7ZBA9ZCtkg6G.cMtFA1XedaP0vCMe2D_ybqG0XCs1teGA.vOMKirTwI5jaLlWyaADyptEL4l5FFh6KMx8lJHMT5vqR4t0SDGtUB86Jb.WmhnwUtiu7KmZyPEiQDwEhvZQOE39uymBQjLQjDMdz0T8H4v.WCtkR2joYNeZcLWhDmPiR9.3ua3RIOzfchTRyqlHm3uzXXesyMUy1ye_qej7Yo.HFXzClZhTpwhJDKcUfMeFbJN7e.mrAicbExIV6qphhhp0OiCFBoAPD2jHAq4m37oLJ8tq6dW5X56ksp32VqB_.t4WrUxkig8MHx8YPfl0yaMHXuG8R7Ooir1o6Dcfn3XKfJQHeemZXW13jw4x2eHL8xI_aCJ6mwbr.mTsyRrx1cvQrTXON6n0e0mNWgNH.w23eqjYy_Jo4no0JTmNysGdGenXIpni2C0TUj6mN.qrrrjXp6BZ5HPi4v0dn.3br3mGj9zhcRKpGmJD6tOj0tUd4TrVNfE_4_x4c7cHw7jZX85BaRZ79aKyZRrUGDhVVG1P_gZmz61Flix3V6tQr09l7DifUvlHPGQXuFDhZLhS2nH54bPfWOkELrxMc9hPwt2u598sdBZVmuGbgbgTCPWr48p36h4Z8ZJXAyZjiL1XDaOKh.y58G6C8.Dv8zrV6CH_bgLfaVEbluIFvpTRy3iT0.ayQQ8riqegXeYBHxKIveLb1ykOcRMNrnP7S6WRvlR__AuYC3YRTYj_GTryPDzJ.bAIx_WQeco0fTdXpciuOW9AU2Tl1J8mCvARRlru8ev8OBubt0Q5eDzRrpyD3d0T0_JorUWSntngPW6muifgORk9dZiTlJW3zXjKN8Wu8HD_opScfvrjOWx4dOeUAXcvY",mdrd: "cW6me4eLyAlsR0pXfjwSLaEMCvCJFJFyRrHSpdUB4aE-1739334843-1.2.1.1-qeQqQJaN4ujYPg6jrA3_oB8x_tlOUlg2hkYA56fZ3n.Zc3Rfcira999FG2_AWAsFIx6U1G_IeEQTVJVH8MykkwQg9XJC5pjjUrGcHRZCFaB9tqF7N8nhLDIyti40EFZUfhhL51MNGdtqUBotwic7MIDi36yH2saLVhRTxfjTb_KP8E4u5y0MR7wFQw1S.E9wZtvvxSnAozZQJK9JxkJ_XkToxCekst62uzh7fn0AkRpmqBLLFL7oeKMyWS.imS5_RmfFnwY91vsifqLk8N6Dnahj1aqYT4NaNXugqmPpfsoOHJEboCoFeLerXTI7ykzc6EVYi_Q19x717EayU95JwffxrCa7Yq8mk0s8nWfZhjVWHUsTD.jlgrUKrpUehyigSRH_K5NhPJmSpB5dX9lZz69hKmmjX6DxPOdsPic8J026J.CuXflGBjazIeoGonQUMl4BJGapFrAHvpcmH_cc6nIJx2StOY6tK21qczp_7ggebNr.kDaeyC15Yf0UkFCAm.8Sr2eB7BgiDMXvpT47oW1lKoL3A_kHteR9KZ82FSzLRhg0T8sP_grjvj6mMvadaVA3bcfVSk7c1qckWJ.DMLpOl.FU_41vwxCB6x2WvwJHTgXorjyy01Z7.zY.DH2rlLBo4Wh4V1GQJ3eAHP4Ye1Bd5GVZB_tU45nZwSswFkhTeQ4lz30VYFnnrurneNzed.fSm9RwYogDizhJ2LF8zBp1Pugvp7zxKwjVrwnTWLxAp8RR1nR10ylsB6epeuPGr2gzKT6IHnF979MCOJLwyjMiWpkZQFUATbTMKpn46giCHrF1v1Ky2auomDiuvOHKoQF4UxaG71vsVUsimBHk64HA78_dKPOytm7lb3YK5.g4NPgY6G27dx_weEwazd924CcK2Ggq15.yYVmBm0YqlDcISBFcNT3Actw4osocjt2i_tK7YSPyKT5cD.FvVUftgZWHv0f_oQ7jbwEtIwu7URhob_Mhw9oFkAu1Q.xJ9_5YP51ZnUKEbgmaYvz_bwiOhZxf_sG_655SeNAmZiPTCNblHM3w6IEPEKfQksotlegIaOvkrvS8L.br2UwPz4OHpuxecUBR8Y01No93dv4g5gZEQEr2utq4glLE7FXHtFXH8d880EQbaE_6WPzM5nS2RWVQbOD.AeBPkqkZNn5FREmNDrV5kQKjs2WKM1uGOb.dxKCYxvu3IqaYwHXWSqUzFi3R5P4ijYeaZBy_vcRV_OkZMjEh3ZCWem3lOdQRSG5oV4RBcm3_1w.p0OoTpowxJvBA6YAU7KI2_RPmvj7iZlzrNBiNGTk.PeIjG_2P5t2enQZrSTpUpqjwptnjBqeJpnvkIv4OWR8JhfVTtZfuBD97tqBX65yveqT8yEngcH1Ki3ppBkBN39ctInyuyquy.8aUibRJb.Hdusl1TWKJ0UV3CpnC33Fyxi6oXFybBhYxGE9IBPIIZJYkvkN4MbY5s2458H2R5msgVhHcXVDiXE2WwmXwgVHFvElTrBJIVvXo2XKET6w96a.U8fKbcxkbVuAymlxVUw1aaOBB.xwQZQd28QW3o6xf.UPOvbQYHICTs2UKf.n7MaYhNpfr2ri3hMJ39vvfAzdZHf0OriEmHYMQvbX5xTq1r2lSD.fGTQHGw3Mge6GEc7GPez_l4G9T3ujGQXYHxRfQVrVVZ2ly5j5H82EhBKCFSCx1NmfFooogMFKf6d4f3ME9CA4rw8pVXf_NbdbA.bmYWn83Kwvbpt_uIcWkre447TpYk_u8nP_pC3LG8tjAzOgbQ6BWHp5M"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9109dd32db4256ce';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\/3650892741?__cf_chl_rt_tk=cHblbGZC.SgTFr3aCF3tRsdTzr6oqadrGxmi_Q1zvZ8-1739334843-1.0.1.1-z6LQwf_1QUSyZFY17F8KqV8_rAqmiGHoh3gw9a75b4U" + 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