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: "blog-340956393373.mit-edu.top",cType: 'managed',cRay: '90fd06ed8f593997',cH: 'wmplseCJSS75ngBsdU3V1vQEMyGCxxOMkd7ZUiccVp4-1739200237-1.2.1.1-XMD7AGR769ARGHyHxybnIcNySv8UiwlBevvr.zotEBg4SvFzrKYM5xkUi1QPriPg',cUPMDTk: "\/post\/7140359862?__cf_chl_tk=0kGHLzmjiQX5P6fOgX65evjDPcgg4xrpARl1.P9xhPM-1739200237-1.0.1.1-7w0HJLPnY.qE0B7SzdScFTgcqv8MTrqkAPmKJkt.rSg",cFPWv: 'g',cITimeS: '1739200237',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7140359862?__cf_chl_f_tk=0kGHLzmjiQX5P6fOgX65evjDPcgg4xrpARl1.P9xhPM-1739200237-1.0.1.1-7w0HJLPnY.qE0B7SzdScFTgcqv8MTrqkAPmKJkt.rSg",md: "r5xfP9f_FI9tWz.Bju9TiLx7CySFiFAKnp5W_eF7qhk-1739200237-1.2.1.1-Lm8XHLYGoCFSgocX.d2rcA4RMbC3aZkkORBSsqnNaRHBWGSTZRezK8rKJ2.ZAM4lk9jGXFSMfmddnq3xh7c1f8ndhxOQOej5JmgcyfHd46YDpxfgYnV1rE7aPKMBehD1r9bHPUQdJArHoVx8ZbkJiw9GJ55xwkJDTI1VLaZwXH99jewUUqfIm0ZD..bnU_oS.Wx1sB6pjM0IQw28yD43LZAkWBrcwHfo.OfYpv3hPGPlgHeRoF8VYwCc_fpOKs_nIcR_pDj37OdybE9EZVIPvWc4GjZl2sI6Gs4KQEAIxdSK79I9ManUFtU8V9g.pg43sgfITCoPj71HEujyr4uDE.FIGMCJhCyWHU8AS7zGaN_J5scI_ZLpEQGn0wb33RHkSki5i0n9rvsZq.BXBP0wewbUsgQp5_9M4Eh_1uqxxQ.s1A7h_iABSsnwp29JsRDwiIA4uKRxS74P7IOf4bjMWRWtg1Yg0hTZ_cGQ.1LpfaQhYZf7DduFAnptq4ud.6Z4COGYeTpxfIMION27QLlWfEGI3QI1GD4LvJbxsb4ut_8nooxmIM6qfO7Nc9IDMY5iXedcdRDWsIuC3wDFkQZUgMZPcJ3561HemlrZ1dE.W9p3k9UN4DYOgmIeAFp5TJEpZPQevuCH6784cnjGRClyhS3WzxrBS3.SI2XVJ7lDt7fzM7VeYa1xiGIx3o12uQcMnzdSkX5HECYC5oJVewCi2WDLnIDpg9hyp58cWYK4jBQZIyqJg_1QVckuzYbimetnBGqUrXNgjcr2jG.pvnTJ0QQFXdluoXoC0BK9W6aXRzLx84qTca0wFzAoFb_6dveTPyu_X2HLgZ7lc5gKY.TiykTihQXNGTeUxlwPL8K5DR.u.MVzg3MagXJNPb9AN.ndiSuHFyYvE.aH1lMdpW_MIFy0oxFC8ZyqpYmZ6apCRLlHEHmHibLOXTlU8B3EVkZTq2IhR1fUbB08Xhg7BxxHB98KBPvXryWITHdw.ny0ZtMdH0__b6oZSwaitpY0axny8vvh0hll.MJV43WxGbSnqRw0XRvl98NlJvvvL87lex3vcpuFSqjtdIjSKSmUcXA2vHePqwTOaf.rXmCnbgwLlJ93KqGfl0438xeLy.C4KsF8axgo671eqJA6O3x8Y6FjCtJhajc4ffRX1mKcyzBk2AJwy_X_uxiI2xxf5Z3hhjak1tJfMlgMMT0ZZYwTPgP13qa.d2MFAWjyqRUkxGouWjlvUKuIfFWCPqn1ZiFX4PwBptWTauJjajLlfFvcUy905qUcaqeX3Rmc1pBhphRpjvJ8S8sP7baRmQhyehfIyJr1fCme9TQX9ThPz.szCcyYQ69r2dVFpLJB0eqV_dCK_EWXBHzzU3ZwViZ6qZl7OGmw7MA6sGXvPlTfEBXDQ9SbNcTEECHVQ0IvvOaw7aeablaw57_HeNWhtyiRCxPg9QLAtE.1KFEraCalKG0aBEjFNJzAkH4F4gakB3TQIAbw9mySRM0UIuSnSwRlMsJPi_KjWcWiHTOrcUVocdSpD6AGpDowy1Iw9iaBFcL5_K9nLpRKw6u4XZ5rKD4vuLz6obx5hGLkEy6KDzxiEQUMYwwbCGJ5UG3Tg8SLaNEuPmz8HnxjgUOgLgxdUXtmreR9XPgLUMQJWevjZ5CtN8ZIuhpaX3wA1s4nTtQsHzbJWRh9wR5AjoeRsac1IjWJP_oOQun8s.wMfmtECrjjKsKGYMHJM7cayB.dZKLJEWRc11fhNhoRw5UCjUIWuEDOf1jYehTvxsLkw6hcjCJRPZjIth3LmQDYvwLhYFU8Lu.zfEprMewxbt8RIgk13H6W_xQpQ.zfBa_1yvV7UW8UibkdkRYY05fRgrytMTG8HCbJt5m9p751ngIZmh2lg5uOJNgZcCdjO7DMaTQfQzL5W02w9dGlCCOflnVNV6SOyjO8l_zm40uHfZYBuppNjtuxkE6mx483O4PxzBZd9NlnAjoV_z_uzUZnZsaxnuTbrXlFuzKk.KI6lpoN_zZe77oK9PufcSLHz_Mgdy7S0EKxgkFVm_sWsiOT1tO2RztOBuO6IdzO9cfKr3wauSwJtCgR5S.2edIQkpcRJa8wbGpxJGfa_rfG6orVzpKSJGQlCv77LnomwVZBmhdlRA71Wd3FHnuhsU8Jb5iICbWggAeVE8i7NO_WYJxLySRXA9yhztqZqezz6g.rRC74Tp8u3HTv2mq6uxPJcm4QIFmuq8CvDYZmZc5B",mdrd: "uZl_vFqMfxce6HoZhXpoX11HaqSMH_jEUFIYQfdc2Rw-1739200237-1.2.1.1-naHb_oEn7KllN.RVunxI8VnGqMk9gzrq9vQhVTYfIM0ZzyrFp5vefd1y7vcBDHTlcIkTxHsn.xTo.YE1CgnP1AViHaX5rjS1taW9IvY2am5i0jVR9yDsyMamkSzu1vOyFfrEmbaMeDEUWdhJksVxt65cfk5.lRmHbOg_wBw6LW.1VDoCY1v7f43j0WPPWCVSVQAXXhrWmEmkRHzVotHeBq7vWXNQJoQZsFZUw.YnnghfnAZ8dlO6gk3wj6J_Iar87j3x_lHQnwlVHfcciDAJZh_8ACuopMpLZDu._u6LITW26nEjITp7je_Zeczbh9SV9hKPNmZmpPGX9mx_gp4YZhKvcyhk7UAiqNe.Il50rYm_iXehGBoTOLN_zlVkFmHxeN4LHH.YQb6P5vyE0v_sXrNiTbSnJDK8TM2eaC_lZmxSmo2fboQGIPtm8CyoJo16pjaFbbeyT4Ylvo0Sv97NwaCmJadQPz5JgFmyxfQ5jhg9U1_5b_63rRN41DA3Y019p_h_QSWRdG9OqW6.tgec.ZRW.jXG4S38xSijiSm8lpfzWj1cnv_UY05ppH9cp4t6Mw55c9suI85D3W0885Qh.mzQZqjpsfR1NrbXdjQFDByPF0.KqnaBL.zyfuhsrcWzzu2zGrwJWWoLU1Nw6Bj.9_9ZDvb_yGovn0H.bDu0ULPP7EdcLodu0H_NdPxOpcwfKyUENQkNhImCB3iU34_YVLYTaThJTmWQvnjeRKYJ7oow9J62hyMjssRegk4yelbeGWRu2mWlKKyQjmfRthQiryrY.K3Dzd6Kc8UJ7kg7HZiMzafS.snA_NBregs0Ws7mGXutBLCFg7W2PAwaWqtmtRhtJxlCPg9jByc0bg7yL1ubPcXy_9AK_gn8ygd5YzOsm.sQ4yMSEnP3N.yLHQog96GIapQ6c2NPs6DehVIHHw_69KCPGnARhDBLy6qa1mw95r7GxStSRA6ERJDLfk6QIQevMgSU29envvFUGTTy9J06xhaHdkvEXCtOZHo.ef6wqOuuRUy1zkjd2QvRZCvLl5vOBnsPpAgpmMDxFYblTM313gSvhnWDSIBFaNnbH8A7HDlXqSnLUr8kl8jubqszoGN1RWv2qJey.239_0UGAWIYS4f6m3ZwCd3rAtbdxtBLqKNXko4VAfZlysMAAiSHDCkAe4MU63rc2o7ZgLNkTd_XkvveSH2vYIIueice2QjQEMLABG7i2YIwMQOsn5ON_FtmzNC7g9cfLYQahl45Euy9U1rDPCnrftOWlisL1ZcqY9L_5Qbuf.0U8WZcL.lgtqe6gqMZiur9Knut0OtDAdpQOa6kK9VcdirkXT1zxeLn.JO782uUunjDDStfKzhxvIA2spXkHCnTmOsEIswvkY91pMt26xWr0Xwjuojc6xpeJSE68NPB0XxTouSnhsN4gmgeswlQSCwbDfpVqNfY.Bs0bccwPNx.5e1f_VOQ9prKk03J3xj5cwrkGSWTqcSnj9YXAt7WPl8dgI9b7_KvU_zD7rPymUTF55RG7o3efENZzRJg4rdaXZLTADx..4hIubNGVp794j_tbeKcidAKWas5oMrGMOurnNQqoOi.Ng9_qzU_H3XoHjNS3sYqrm9ZWf4P01azeyOABiWHM0Eub5D1YvLc1uzQXt_r54UiNxzxl5HTI6efnoRN.fk3BOkwaqCkfs8xfSSUcEo71XR2kxBnjaLTtKbMc266M7JuDt2a.fy.cSKKjFTAcW4qKSzNeYj9hDkF43LgVYFn02bBrM97Np.ti1wClAxaL.5IAEn6YtQmF2mhJemNXYL79zTppXeU2pXPBDPPlkzlrwTGT_A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fd06ed8f593997';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\/7140359862?__cf_chl_rt_tk=0kGHLzmjiQX5P6fOgX65evjDPcgg4xrpARl1.P9xhPM-1739200237-1.0.1.1-7w0HJLPnY.qE0B7SzdScFTgcqv8MTrqkAPmKJkt.rSg" + 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