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: "895717.mit-edu.top",cType: 'managed',cRay: '90f2e2bd6bb3578e',cH: 'D0d.9CNpWH4TJoUoYdw35riKNY4KowDE3bBJ_UloQlU-1739093897-1.2.1.1-GFMF40IegxpnhvsbQpqf6h8SFy8Elp_EckaJJdBGsXN0rreR.2pun8xCXNJaOmla',cUPMDTk: "\/post\/3506982471?__cf_chl_tk=2p9Kn63ts3IBUs6CrIAaIF9_B97HUNqX6pAmUH_21w0-1739093897-1.0.1.1-WtmFGjH0cN8salqVHkDMMQVyLwF.jPy7Np7LJKN5SMo",cFPWv: 'g',cITimeS: '1739093897',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/3506982471?__cf_chl_f_tk=2p9Kn63ts3IBUs6CrIAaIF9_B97HUNqX6pAmUH_21w0-1739093897-1.0.1.1-WtmFGjH0cN8salqVHkDMMQVyLwF.jPy7Np7LJKN5SMo",md: "ErLOPoAdfk8p_ONG6obGN_GNNWN10z1Aw.SzkGOkROc-1739093897-1.2.1.1-m1Tj8sWr6MfgTkPIFYaOeXNTa9H.C7GG3wYxNICDaPzr.d9dKr9IJCwTt3ruCN0YKMIOPJvvru4jFXKWnNxzYEtM2OOq2FJS7FIB.hdhKrokJCVckYTWfPMlFHZRiMuW6yU1kwOWYfORjy1JasXtSrjNnWBGCBc3mG9sWSJMp1QW_EJ8pRGLnTG6je_b60pSfIPh1p8f0grhhuqu55abXB.XiHussjZ_Z.EF.d_Aq52CD0eKP0.U2sVzy1OFHtCgACmhNMe._o12Xw.sv1OxHUg7S9T7M40.IK_yIwKXCfNkr0n0ybhzb4gq8rRX8R1TVezDkKY54HE8GnrgFMRgtMyJIGg4UecYyvt6AGjCaQ_IpqoDWwqhkJ5kKjVWJonzXLyfqqnizmrtDjEWihhrpKbPcIpV2k8gi6NLn5shL42mGkv_Cfm7fLZlbPj2wWpJkD05nzTfypV.C1ojR9ky1NOTSe_X2XWsd1w51os3fOqX78VNpKa3qB2gEWVihJasC6zQfdMHw84t3I47.a4H7QC9tF9A.urJkLAKU48wquEYtYFd9B4E74jh9xm2ZcFIMn8xInlGxonMPmnRuvlClH3V44VYDBK4UQcuhR_9HYbe8xmRvzuEfT5EnxiUrdj47Hey1RDllB13rw1A6VsUhaKOxe3NTjUdyV_wjPMIDlpp_bJ4ZOhQLtg0ZM4U.MEEpYAE9NgV.j4EQPLtRTvM4YQ3athKMbuDkJlqkdERGSfkG_xpdQ_c41vL6Fzxj0kqV1VNS4T6ji7FsOu1GRg1HWP2dRM22PAqkU_Idp.PQqruPf3WbiSmJhcCgGi4ti.Eeng9BubungQnPnVBIVHnJk2Vi1MeRaV7EIae6z0w6LoqkPzS0lkzSm61Y4KRSz86Odu_ik6RwNOujFAU3eijVz1zuRFNywS.z9SBv0BUhSbEK5UMjenhX44a9KAUD3QlsYjXTpGo397cCWnsB4f.DXRvYSHoDcKeHn4tM2FIXEczjinBNmgkeIcaLA25gUJf1IPt1vek6h6MURwjS3fb_WFkNFuJD8a5nb4J99vF8.hLHStTfwKHQ1.JdVkFFU4P7idhWRzZyu7uYpOWbXUavh8E13HETx3xD7Sh0CmVAJXmE6lP6XbEcbdWG3aMK1Fx5bu9gMduZt8AJI1VP1sm5nHtx_w16HOcLvuXz67qU9JxUC28BmkqnjfgkL9kvgOybRgn_25KybdC3ZbENKpRuaGLOU5xnHjZDI3qTST0GjhB482AuYUzT84NiHi5C1juVhHjCD2LUHhOwdxoEXeFtUBJxnEqgshyru8_t97z9oaEWPxw6pwevMbDUJ1zofspY44oo9EkSC.n1fTyhkxFF8hrunXu0F6TS.Y8jt1P7ndpO5pwm90XzyUIel.nWYWVjVOUKLQTja3KfaATAUHCyLSHXceFOuA2A6IS6pqSwzgWxY3fQnmUzCcjF.tZMofboaXCKEOHlaCJzQIjMWuq98J0QxaW_8gl6p2DN96w3Rl0AfDd6yCTKvzazJv1Ekbuz3G2sQN.5nRax_ApdXhGmuVuIakt4nnLNEtmKmOtzH0DGlNl1l9pJXYD.f34tBL8.1jEmva9j1YXPy71BZ8ZpInhvrl1owDADoiNgoJB5y2EB3nIJbHz.gTBsda2dN2r4I0aZujrJJ0.AqJqnEVf94UHMMZwEQaqv.4KRzc8kcS2p28baV6p5ZMljE9Jnol_cMu6TNBg_FxwCSKRP0wMnYFTLx2d5lqI2cSNDTl7UE7_PbkSZ9AISAi43eS0Q0VPj4PQrOAM9aruaPOGWjCiG97t6Y3kKND6Wo3TRN.ummnAYKKua6aD5R4tJ8Rg6tTKo6OSNAG0ZjVY4TituyOofGn83JDJGZZJ5b0Bwa3GVcV7E.tSn8M54OqcxYLqbAaTs8wVYlBY_ZhH42jR050rQcyhp8mfPJh_Rm58T3OAeUjYoI.hD.pqwrRa5iTFUrFzDXYyCjiQO1o_qtgGLp3WjHLi8zWeliklo4Zj9burE_4zIDEJHUgfbAQ5nJ8lhKRTzOmhyMdcMluPXroG3uJXaqSNybQUvlpX.dmMSv.crrOL4lkmgMckFV9fmG8wJEFTkew.Ba_reU52NXwjJr5vQdMHbSVUC3s3G.fa86PQ3dBLhJtl1gWNvN0Vs_PdWLATpkOUwyFvBWXiUWIKA1DylwyZnfM0fmStXp3nVab71sM",mdrd: "Q7sdCX4baILTUWWKjaBPRuyyTIeAi4oVhyVYPq3ChU0-1739093897-1.2.1.1-1jNVfCBg1aJ9Ue7gWPfzmEJFRNgBvomy7_Fnh_AP7qKDrRcPayb00f3T3coKwuTPoVFSIdj4J.IACUNxNg7p7ut_HY0u4eyW5.OGFrAGc.9TX6N.fOPHOp4zTqvjxGSIQqDsEmEhpzhHOffOxwnIDGxEbzUOs9vTRz_X3j6aXa4Q_WDlMQSidBLqkW_PgZW4SwRFq_v1wHaI_fjAIMKlLPWMFFwk88Q0mrQk_VXlBAT05O0vGA7GxLzurLN_Mp7hGqLRlEwGVZ6HeqE1g0_hPbtDhdry19M_.xyDz67CSQR5hpuacK8WvI7AU4tbRqCdtQKXBWCnoI8.Dl.SNv.xSgJuIfuZtpWou06b2a6IRtykn62RcGipXtG9iTQp5oKGCeAemEg3Ms.CMBBBKW18edjGMcNAS7KsktPGnWTza4Lw_Vp7gAeoTu0vsyvhAdokCHhT39E.MOzXat_6EsIEI7oIUKp2kLvleBK2T0FIQveWcOpprjeGERKCPq7pjEIVpsvnMVipd06pO.vHfWHAh1Nw9aP4UbpIuEwf5NyzCa8KJs_K1ENLPAa3uaLuePJDtjMgZ9EAH8NxDjs2EzoBcOuEYpw5xc_mlws5HPRfXB8_RddS6sRdCjna9OMIGcnwe6vgnxThkxeg0wtopiMf85S0bqUfgrw_QOCPyWmsD3M8SJChOJYVnRvQaQwk7OLzrfN.DvXDy9ieLudZK10.JcwewDPb4C2.cwr8jlh9wnZQ2oOiIlJcxJ43xJ1CIrbqEZLB4s9arbO7gdWh_EzhFDvXfOtieuPWib4.hL9PAhNtu_ctrw3jc86yACC8zzdfrVxR7zzP_L.LmzdNxcKQk3xo29_Yo5wmMR9e3MewVlwhotYSnM3018m39SLLWCdL6qS_NYgyZUvL2aRPGN1xktoQQ9hGaoOa1YG9WSZd7yRJ1n1BmH56WnbIzoUezmierlU819EUoKWqxTMGe1UavRpgepC2BkENU.Yevj8hzF1I1MGBAdh6FfBaMbmuFrrr6_fWIAkf38SjplNxSv7NaQQR4NpmRabbHwTmWOp9egV3mTe7rS88Xpa5jqdlKmLzJbq9RtYCAQUeeR7O4CbsHBnS6SAnLLyaheIoUlq5ZPClr1ckFpewDxdXrZsJ5tzzwMBGWd7RrPVWSvhTGgEEmiv.BNVrsd3MHyM25ktJ4n3WM.IisNruXXziaRmTTUK8LE.2FL3ZpcJROswCR9UiJrse03mxrMS9f0riMX5xnahMij_bsMbgbuOmo7e3PlydKl.s2q4_BG7qkeNhVOv8cKyHE10bgNCGSp5d.lMs36gpJv3kE72kW31eaQvBlIVC3u3tLhipjaCeaKIuYMrYifqrmvFx1QX7aE_niyOaSY4Mn0pxB_fUvSKL2mlR30o4SWGhxF_Uzf8Ia9ZFUp6NlYVoZdhVHafD5O5aN6XhDbhmS1O4F1_heSqe2z7dxE3HoThs6ZjkGDg1H1i.IaJ38Xop66Ytp53eYSfN.mInCi3UaxYCEDNwMeMkAWCXcyuUPtvxdukKvMF38qHj5Z63S3rGHsm6KF7JE0xAejbFEqA7tYmOsqj1.OBz6iC.dbM9F56USVesHNbjPMGFiHRKHYLWEt.QGDh7WOq0lIKetEnx7Rlk5tn9FyryVDpDslYmEq380Qx.asuLUwGAgIHNfBOyDFmeTezO4YqHHmyCf4aA9zHJt.vSa5ZUfMaR4Q485nQn4tgpvSVI_cIC_2as9PnxxDowUoxSXcDjXioEeyW_fh8beMpKZcXu6JeZZKwrD5R8eVbxfK3Pekpr2ztW0A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f2e2bd6bb3578e';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\/3506982471?__cf_chl_rt_tk=2p9Kn63ts3IBUs6CrIAaIF9_B97HUNqX6pAmUH_21w0-1739093897-1.0.1.1-WtmFGjH0cN8salqVHkDMMQVyLwF.jPy7Np7LJKN5SMo" + 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