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-aff74idge.mit-edu.top",cType: 'managed',cRay: '90f83cb86eef0611',cH: '_VTXhpocxI9snnC7.owX_HDOA3vBM3s.OJseukN1gxI-1739150012-1.2.1.1-2LegZFykq5b5jyyxkVRxAU4733P6bXxzBhyERGL.LEIPWc_raMkneJg7ke1jly8u',cUPMDTk: "\/post\/8214360579?__cf_chl_tk=WZdIzvwq39vqWCPFQQlGdvR8Z3RFT1bEk3kFTET_mpg-1739150012-1.0.1.1-y56xV5K.CUpXAYeZlEVHs.Q2CiI5mqALhOJwOU5kPWM",cFPWv: 'g',cITimeS: '1739150012',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/8214360579?__cf_chl_f_tk=WZdIzvwq39vqWCPFQQlGdvR8Z3RFT1bEk3kFTET_mpg-1739150012-1.0.1.1-y56xV5K.CUpXAYeZlEVHs.Q2CiI5mqALhOJwOU5kPWM",md: "KnFEIs0MluOySJXyhxmQJmbine_TuykCt.EBvoKuuR0-1739150012-1.2.1.1-VQ2pILd4rg99yWs0xH_fQ56T7Ka_K.pTjVvoefzebtTEaJiejzy6rs0OQ80euwwCyPxl7Jw7yWNzDOBklyyyXDGrtOz7knzrzOCWcKRfMNNX6yppZzeAz7Xrgyrjn7FnC0ZR3AGhUNKMyaKuBwvNeeUJf_uqmcEd8k8AOb7ewXOl3SqXA4Y1CtdYEpG8gpBRvluh5uUgQVRbxS3eIsviYbuhVlNHrhOZFDRT10oENQ2Jjr6HYvrluG1WrAAvTrP4lQQ37TPMmLfto6o2NOXMyYgboYALE9816ALEfVHJo98aI_mdv_CDYVZ2Hf.YDcPIrETH.B8UKXfR6GBJAd8YO1BRe4v0g0HO4MQc5RefkQXFP2xU4Z1twDkFqn_mnORskVCmvfcgaA_FWuuD0ya9ZK8XaEN5J8PNLwCjn6wDiGwfUyAnfS022F83Wmw871fo9R_vbQ5glkOGg0XpFRvRcW68e6s6pMHR80yrUi6YI48NjI47I6UrzxUXA0rU5NrBOW8.aMgBaDWXz.qd6q7iiNx.66RGmc4_gJnubBN4vbyhtqI8OYAIUFXvs9FVu3L.LCvjUhXP0tKE7xXlUUGQ2zGEelqBUV8QCuf93nsXqSf.tnkOlTHaOhnlDjcnRLQqVn.Y_jbuAV_hd6u7HP7nc3OT6_ZdptCETSyo9lGX.blWnXOg5wqsFSBccxFjFTO6fvR2Mjhoaf7DU60yzMgPwyp6MsRsfqUvufgN1rjgqpb7Bn2rk6XdoR.FQDFBTRqkLJxRdpHgBFzKYQ.4RzIZM.Q_6Acy2S6yfwtAFoj5hVbgsqrCJFWNDLcogKtSRDF6Bu3OGP7Uy4tJcclyBeqSKOgYZVq1hvZ8pIxdG7fX4HgTX2o.bJmE6R7hZzeMou0C9YjxmgUUp2fjWnbo6d9OiK.PFTc.kS77GPyBOKjOpD159B4ah1V5q2FFFsV9kEWOLXk2FdQExgVMfx7LpQCPtjzqOCs4cbmdlYyFjyus4TjDRnRn9XYwrB3MiP_HbhOUeGswaGYOMU.P5vpk7TT8.YlwodPcLcD56NMdots19fLgviea4m6y6jZzmN.M.IR.zBXqHc9l6ug.Isjk.jmQHUw46eIdYdsR01xIR1LzsVYs.Zgnt48arqlZvlUt4nD9SrfhEJRmkHRLcUPvVKYQxeafTGRT7pvEKS8GHrzbgB.kATT4Tgk6xNmYgBOBQ6JE.45jYjz7hQiBGFOH76FQf4bbHUWtQumcTUuvWNE7paJV1P3lJc9dl2PHBizcUpEl3nLpI912EsdVeckEBAFldZ4ASSaRClaWg7sPDokR9ki4Ah9T7hmb6HV98JkewtnMiwvK2AGhZC7wRDBmRpzzUNxrwDFDkKkzBOYfsgvNT5aOCPOHuCXdHCaZzqzxHolJqTMua_yR127hEuE14xnijZz7PX4mK19g63ESqgim7Xs_RinSYa3wguZ5q8kcXIXLMKLYBMPt2sMa0B50PHhlp6NmZ4zA._TrbKEw2yQEslo1_qEFofZpENW2uh6ZFgX8xkd8DQQZoZXnku5beu4v2hOy84XqeIW05HqN4E_6wLiZM0jshHO2KwSMLtrH8gwUPKH5Ps3UXU03w3pCdYhrJ3m5jTkQIPPTZ9sCfMSsjAehR8kypKdg1fcZ98qf4Dyt8xQOE_vAH6ClobV3MBG3ZokwJoT0EqUcUTZGXHF9XTkg_2CzQq7DXPgoBZLIITUEiYqb4elasa1zmC71h037FIQwfE3UCh4hew1e4ahrasjRN1Z114LVYaQVdJ1W.bEp_qu4w74WxXoDZ9g7UIyl4PMrw5S1yAkuQzoH.Bt6ilzoYEfhWS60go0RaxyWB9.j_NIedk9hc0F0jUcNQj1reuwnL5mQYv843W002Hzg1O7Xasy4xhuwkylgxDCYa0NU4OwnGw9eQA8WSYB3FdQFOv8DU9.vaW28MxQ6qrf1eQCXjAcsrhbeyRNvJKQprOFREDz0zXivqhCOQJIDQH.zC.Eq.TS_ovigXQe4j7A_T3eKQPiI26.wOx0wq38HbWtNoppIMzhCT6WeCnr20b8H3RzTfsIKOn6AZ58pmo4NFmShcNbf3cqpbAtWtoUw5l1lzU0t3lMr.1_J_yeNbN9ljOyyEzJRhjZwc5M5pV37Rg36RfR2S6VtaJkWn5VlqMYW8ALExWysxMnoTm.JaUpiFV_eh8FUDFCfS18LU77njBAHWY_z2tsb6SWtebRIf603",mdrd: "6dtHu1HzHKXl6BvZmW01RgPI.WqInStf59TA0BUecgc-1739150012-1.2.1.1-ml.kbmmd45wb1eL28EvviCTQS3fIUXRZom1JImmGvjnmptUfkvdVSA9tHw87jDwgnLPptHdQzVMBXEQeT5EcOV_EuwEAKCXVCft1Sl1OfK.DhTIWoJHU8O7bSs77JhRdGL4SgFi6XB6MwjdRRtUWIIDsD37f.pqAR6gJX9.un6CHSUSOmTZZUpY7kqnK3FKNwYSiqrzP_vGlUH19ZxjPwPeZFuuMnLuFGzKgZHFYDfxB2M6A.SJVtSudf2GkAG6e.LPSMly822Kth6GLChKcg4T22LB8prsrMdy.3L580lYadWQnV9NSTY7mKGk79evn0lrE1fMapIznkE8rZoF.kC3.WBTWEHkV5pnuKJ51DMfg2KRlg6_ocDPq.TX2mDYhlT2lykiO79_lft2BwtUZMeQr48Sq6G99WEZ4uu207pz8xSWiWh2IbqTc9rpt0VKEwHQeChj6I27VXLxPxQpMzt.KnoGU3rharxGfpTOq7EWJINTFi58.FE0sHH2A__RVf7MUNjpP8cdmPJzr.MYvU.lPnJhxbCaqNtmWWiK.kvCidEN4WnHhhsSh_MP0lkbVwW_kT0g2n6uXZ__XNoUtYVbKukeHQiy_PO62jb9DXCd4Ffrgke8cpZ8ll1VJRKPdaZH_yvig3wyGfY4B3HgUtaInkuzx_.SAlHY34CluQ3bBDYe2E5l43iRuTRkmuzTiuxDsTSK9WfY_h5tl6oTP7IyLSjoGppd1.sc3FjSUdKRcqId2KMKp8FMikH9FqwEEJZyCJVv2XJ6KdiRaR4MP.EWuJIkJvTjayNhCEWUiiNTM7jEZn.vdanm6ezah2Wvb6xIDR07e5xuCcRE2uTCvWc6mzQMzUm01s2H9h8lr5MvMU5XP1zlqEi0xav94dRTW5kitXNLiR2R8LlwajlB6zQyI2zeGn669QzB6tVR.UdQYbBg4ClwEhErOvfYhcRao_oG18j_pHpGzrX.MM376Pi7b3HUJp3ut_14i170FcTE_nf9JjO1kJ6jWJOzZFXNDsKeFt9jUzpmY3V1A7hD68RXG35fnqL6kZ4lP0vmbGseG1Yv_eURtRwa6mryxdgqf4ulaWtkavCIS_huUP84kLMced5D1mjFWCCsnv.ni.PyIFW7dM45LiQEXZC0cpD9GSowqSg5b2JjmBF8l3NMfl1D2KLC6_NhPTO.Jdh414N4C3BXklBEAR4JpKi5qm7HEsICA2RDsuDtITGGjMIr9vW4JYtbE.vakP2qyn.56Sb7rvAFKaxCxqLFAQ13WPN.AFBKOd58Z_TEs9fHP8qPgXEVnG8HnxT7hDmRVzQXqbhmFiHUS5BYAlSJ.wlWHxM1_n7zCyouKhlZBKJVITWTPEqDNYmD1HVPoHp0XVBNBrUZt9BrUDPFP5PuK6pbIlhtiNSoPqKkgjgCzd0Ibw6Wgs0ME2rKl9A_ZghGFaab5Wn3YYkXOJ3SepfC1d3EU2kQj5zyD7St.CVp0XP5tn2ooBUrn9XEWvB5VuEkrEnlDBHJDqbLmZUaGglU__mp6jx5MQI.DDEM7uuJVYz.Y08_E._Rx53hkwCoPfBG8PIn0gyGquTSO3K6PUtpiyQDH2qABRwx4PuyYCqVkkkUrqvhqG65LIpFWllK0O7vkHyycsx62ZFIxEtALvqJoTkb04uFHAHyPfnNQEcLQ4f0b4iLjb0HH.V_S0e53c6U7XhOJXwdNT1KMtfaqpZN5dY1dWQTUp88mU.ZFpL1xl9o1tP40bNUKW50mGg7gcqeA5YrsouF1gEaYMjgcJ92Ai.K8XZaBQeQYjCDUVLfIk6yHBQQsuw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f83cb86eef0611';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\/8214360579?__cf_chl_rt_tk=WZdIzvwq39vqWCPFQQlGdvR8Z3RFT1bEk3kFTET_mpg-1739150012-1.0.1.1-y56xV5K.CUpXAYeZlEVHs.Q2CiI5mqALhOJwOU5kPWM" + 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