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-574343580072.mit-edu.top",cType: 'managed',cRay: '90fcec2749868281',cH: '9kk.RS3DfVPQD8826qFL8GVpyB5AwsYmiGIxswUmGMU-1739199141-1.2.1.1-iOHTW7MwxHlFH8Yj4Q_z5iu3vegx_LiCxk1C8coJkO71XF8UvhEbBSCBay8veedw',cUPMDTk: "\/post\/7649215038?__cf_chl_tk=80fQCE.tJVWSTNGPI9ecvAdIWCyQ2HHkDVBd2zv9ZXU-1739199141-1.0.1.1-R6wEOQzzg2S9Dd.KBJtV511CF60w5zfCEx3WuCNjGNo",cFPWv: 'g',cITimeS: '1739199141',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7649215038?__cf_chl_f_tk=80fQCE.tJVWSTNGPI9ecvAdIWCyQ2HHkDVBd2zv9ZXU-1739199141-1.0.1.1-R6wEOQzzg2S9Dd.KBJtV511CF60w5zfCEx3WuCNjGNo",md: "s3SmxLx2bf_kyRu45SO6dZgz2fJWNQdCircorSJEZAI-1739199141-1.2.1.1-gWRUbioDIr44Y6QCBhFM5GXF8mOy795S__D_uEjqb2BpfxBcRBuvBBvLV59DNiR2Q4iD_h9MWBa7hZgXfUfAxICuzxDAklT8FvWjyeXgXxaqu.fCdMgzRcYAjEc6rKlcZSaXfzMC.6b9vOCb6gdmv9DVHPWeedyhDQcwQfJP7OGmGeZPRQhifZY.yX94ZdNAVkD9DE9n1pgF6HexQhKYkmbYpCExmSPVejkHdKJh6GNjjKAhKgiL89Ch0Kcsxdfi3HDaT8K7J.d0U0WaupJ5oGywTRsts4W5FtcGPqrqTWTM1tSxX64F2FCRR5QFJ8RVUAHYFt.DOPFg8ZHi4hIrdOMTs5XpK76OffqyPrcnjEbPegA47hs3sPCUAjZ4j3My.4Ygdn0mpCABeUGa8T.44DXhRgFnx3RKsLqE_1PE_al39whicQjeXdE4pqSTRFD2sXM5Y83kjdPhvC6mizwvkg.VBkVdcKQ7aIBZLjqmbKEE9fYHRnqZMjHECTflLMSGYPzbsuckTYw7fYi8i6eJ9_OVtR_W0l1rlFAMRWwhfW5anbgwkZjHqUHmM8QSRw6NUUTD45s8B.d4nALGrq5ERnsrKIKp.jelbVg29ieNU2nNJq7pwVT1EPlFoddGAkeWjJW.J8WX6PetUwyiuBwaoCzIJZHR3fwXAedgjvJ..A.YVshG5xmDln4xkg3YXy1xeG8V6bH0G_kxue7sh19HxKsjp1pCcwV4SnwEyZHHWhiDmcZwsrzcRqQoQ6FeV3k9wxIUV7m8eKNi0zv41JF.kXimujD9XVxE9u91jp9FJuzjv7EB19.H8rqKQvVBcQfVaV9fp4pd8InPkVA6P2BUdoEtZZzVuj82IHGrRp8fVFhk3rKhI4wcjQAKwDgqdyoIAXJMmtbJn78_dtqK9Me.0FSi0OYI3WNBZGIp6SdW1m5yUrHusXob7FfbfVTTo2E2TflZY50PX96QRcBiM3lXJIkXnHIZCidGJMi1sL.9d9mqZC3aVGvMnrxcZqKjm_htWQJ2MosWBjVxcxYs.Y4ZUGgRHt3k6U5YQgo5AuTvm5ctJRXpIT4C0EKzIWZyAmO.PgSA6wERAk9uAoFyEPTwsHC91sW4iBTeig5sViNmsUBUvbxKFdf5r_BQWpa6K9L6CVuKWZ3bQ1eBTLy_qKtbc3AQAXUG.krm.eNJxv5mGj65Y6oV8gLL1nKaDRAMIGdaIC.Crom7KEP3WVvg2QbtDYpxIlzw4AiuR59_JDZGiqWMcr5lwLBVC1yjlMV9ZumNjeUou0BoLAccyWDCcW4Hv.CVN3rKRein6NbStbW6FMGR8aipvHgbGAYpeXPhfBEWWGKoymeRttZCsiUBwl3IMcmRoDrs4X8ykARz.Wu235Ad8xjkzL6Ml4zCoPLmF_6vFhAb0GszWRIjjmdHOGV5HmEpbI8JZCdw9j38nVEEKJmgIcKsmkNFMeNVRt1mUQwVG9hXXPgkS.a.t9tbe5AjIOJ_53hFg4Z049rFQw6GGyG6cIseV7wktEv2ETJpPdHVzHfJAKXK9Bug20PAWHVdJS9vrEw5H6oTfpxQb7QRsvdb9pJqJQ5AlnRiystuO78_dGMh0ZFlFau8RfCpGeO0bWQC_CHR5uYN.pRd96fN.WmB6SEdVUBn7fXPnoA2DuWg2IPn8FNmx1upMNFN7p0dELvytRkFGhzEvIIwI74qprB4RgVWAItWCrvgMApymdwwjaYGdSEguHRrsx8swNQpZTjsSPBRrzmMraMjA8IbXgdPLzjHxw3751I1iOR2BV6Ib4SR_WsWab4o9Xh0Bz4sDwwguudxnOQLFhOKQXWRa4LFhDOibD9lZ0W9C4l44IevPP3n1m4d5gXqhU0nCq.b.0AnK.mhWVgjclsESoRKV58S3Pc.bGkkA9xYHFnimJv6NIhJjhGJ60eHYLM9yN3w5J0yhaTv3NG.cJ61CbhQgJHc_0bRnn.iYzLRT0DwpeealefABKNNIP_vEhu0uERBynmHMAeimwZHVLhNM0uKBEyM0NUTDuHniPBeYqMyvSicqZP6G2WhRY4WmVYRloP0GGFDyUlKr_kmllNnhHaOpsHP4AerF7jPxKsWA.0xUOaD2Afo2Bq5h3ljxpWP8qrx69jACpsTWC3mFWu0B9gJ_4PuyRY8IA1bFlqPPqH5eMiYgn_RMOWcdkFg18PZ6wdAtQXMmEExYeduG.Na4Xyb9OZL4kEl5Zsd9MJXO.g26k6z",mdrd: "c5bL1iLawgWj39Lalz_TUS5lJzNuiOY75mA7VydmmJQ-1739199141-1.2.1.1-HW62cvilRr4WxHagteCa.Vd73KNm2Z4hJX3y3Uiec44pfMbCVOs2iG6XzgdyPrgCpPD0Y.7CZMce5L3FGEoH3NBR3F.Uwf3Q093WTylekt.seQRfRg_eW62Jo4olrwdf9Qxt2P1tjP1KLgmKzROcDD3YzohYhIFMRB_rw6_hvHVQ8RI7nzVLS9caXobdGtUesdptw0IJkoeZ6Qvu8ynyWrkopXcYhRA2IiBTzFpNGYAgQeeMRpmay_bS72sexbTbDsfmPbZV0vpxrJOPiKVFz2v4bwb6ZDs0urETm9WCtNtcDQGE2awZHXXl8W20VNRWTbMh95hBeQVSXP62xJ6Or7E3wLMP2ww1wpzIJ3MRNnAiFLuNRN14E1jKzPMMeGKdOCw1.21OSI9GQOqy.OtLaGfq.RfiQdzl5TaY23_te6T_ca3Z6Cml6jLUL.xbdltBhIjWibQp4TQY2y.EOL98H0W3RGrIvi3QDZom5QLJwC6fkG1Y2TSXeLUJO7CLDs7PgQYZioU9Td11b5TCradWpaPMuB6J7rPLwjs1qSaa5IymsZnz6W.kB9E.L7W.LAPP3LEJhepBjvkkSTq60Gg0Yn2plutQ3N0_KOXIelp_CB8jl9Dd9Uf4uRZwnufw8178oWKUa7_FrnsCz.DTGi1qI0swLXg6JgS3PqON0IilQlLCC5iUUR05ps.6e4hRpVerc4zVmiMMIglleFvG.bI_IGIzWDdrUSoOjYpxx_t4ssbvhiFo6YYFRfMkMdnSo7fBOXIXVPDHL9ffeRe8kIdVAYAO2Iou1GFoe2eIK7sw0GWNZRIl2N4veb3IfFBiXCYxmWoDn.TqKgkND87xkmlAsKlCexQKGC8msUg6RTrXIrZmFRiW3aBPdKIflKHDKyHAtQ4WGal4qO_FqDXtbt9GySmsKoGbFII7bzyQtPZJTuTXLhkohSoAmO59pwIQEe2X44H2ke8RrMqgc0mMBlxUZjJ5zRMizXvEULQwFwni4FG4wFx72JPNIk3s510yn3Mi3CodOS01DMpjFBnIfilsjourxk5QuLt5JDEeef2es8q7jh2bi_NfhOXSP.WfZQLRCAJIMZbWJyEOIx_CXaSn3_5nxRDtUIM1ANYQl8zAK08z_iduMMgu3lqz1Or7QBcWhIXtc5dEGWTLYFutkAHsqqMuy2VlraympR5DgQht4glPVIjFHekQoll_Qz9s.Cclt0HATFkzGuhNwFUGTygvauQTPF_w.p0pgx9nH8IMe38.015ZwdetYoj2ghmrMVF1UCEeerVe0Vus9kIle5Mxmga9WXfNAgPmSUo7.XuPMnGfe.No5qUNrsTca8bp5oxeYL8eRhMnSVkNDN_ZQ4cl_4JHLHuP.17nRM4nB5GYQjp1qbh0Js_3JJAngyIgM4NwJth2f0A3DdSchNSCfhkbBZXFf3kwJ5Hqpl7n8KZIY4KjiHQ548LCzQlPHGPmryvUW5gLkNISr_Tq7ly_F8jvjP5oZNsXcJ_tjARA6P37ncuRiWOJtvo6Tj485scre1UN7GR0qncn1yaDznP263WF.hYhVFR7TES4R25yUhnWJ_7rfr0rpnuACLN0CDN7zDfD_ZP7nG6XgMynu7GCx6j.Zj5bjz46RvfsAAooFh6qVbLTTpsp5WnO1J3Na8kv9nqAa30qLdHDXV8vOIWjXsXGpxdwRDY5eoTmRUANckuz8hq4tv9BKWtfhHH4sqJ_j_W9mys0ejFT4PZ5QCDZtauMR0aoW2pRHlvvahoVHEbg6Srhaovw72ZkkB_EjRpo4YHIctaioT3wFZHy1V6w2yxj6DoKNdLErm.zuAVqvJ9cdvo"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fcec2749868281';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\/7649215038?__cf_chl_rt_tk=80fQCE.tJVWSTNGPI9ecvAdIWCyQ2HHkDVBd2zv9ZXU-1739199141-1.0.1.1-R6wEOQzzg2S9Dd.KBJtV511CF60w5zfCEx3WuCNjGNo" + 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