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-419309844131.mit-edu.top",cType: 'managed',cRay: '90f801450ca6d46a',cH: 'X__rHWb5.c891wNMW8bOkTOGuUW.d.7ecao0wnR5sOQ-1739147577-1.2.1.1-wSNt3LIOkxRKwZs0PLhD0Cqmda0dwcStin2CtRCTRe7wrAoS2Icy9H9WsZmJaXFL',cUPMDTk: "\/post\/4286970513?__cf_chl_tk=cSdEQPPkXzNsuwoljfduSujqZLvhxivap3OI0ddwfv0-1739147577-1.0.1.1-JMq462hqHxF1u6hTZ0ZAH1OKXc3OLR_1Xy6OTHwjVqU",cFPWv: 'g',cITimeS: '1739147577',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4286970513?__cf_chl_f_tk=cSdEQPPkXzNsuwoljfduSujqZLvhxivap3OI0ddwfv0-1739147577-1.0.1.1-JMq462hqHxF1u6hTZ0ZAH1OKXc3OLR_1Xy6OTHwjVqU",md: "CRgCyL6O8T5iwqmsT.c42rhViNUVoBofvfuQQWKHhak-1739147577-1.2.1.1-XojwCMA8dYVeNaO7VZVmSPHtgtDsQiBySoaC1tcWWozPU3c4EzfSVT5T5bZVsRnPjV48Q9QdZnAEMo_22C8mYgaJ.rke5hFlgz3ZAapT7i5DFwT8Ana2CztikWXWl42aSKMR8ZdafBU1WyT1BQob.6fHSEFr677Sp1ksZfAhLOO4vpRdkeEED8mwWNSmKRqiTYwZ4VEY2RjRrhX4b8zkdAC3Lq6j1EPesNYWIkCi7pM7dlFXGql.119AthQJ8GyisfF__ER1iviLY90_4FLOoemjQZTV.4TI6KYHmWutn5SWAL7VFSeyCVddTLUfroineSDhCHJnHw6BwPcWS.5EUB7ZN17ytBSD0RbzVlLgOXn_S.2_QCwh._RYHrruaG.NU3YZnaL9cHNFfMJWmP94Vmp_urwv3Nwclxz7_I51EpASxDyPU4aYvpgn41w.ZEyqdv17Uj0uS2o7_RNrv_j74VNUXEKl_gtKunkm6tICBJknb80jAz5kHj82yK1Bkn8OigN4pQEZTij8VxVn7qyr2iFPzfltRsXrArcB21.P9QUYFUIlyJic1T7MXXKmuvkDUXn7FZXhYRpPca23ah3wZ2PymE16UnOgP7O6CaQ8CTDxKb7W.Fhfcpj9npw_.JLXbTN2tM0cqKgAqhHhT_L7iACA4aFu6KKA8L.PkRziYjk4QgT_QQr7_fjiQ.2TDbc.PKWlOeu3l48qX.Qlzzv2JuH0uJ9N9rH8I4LGhRZJLLKQ3R5onUB_bn5t4cLxytxsQO4W2NptZbRa3ImD5IxMDY1PxKs9dReZqcZ_7itEf.0UqoYmLD2DSLsIR8fk5Q1iLBHcKHbReokTChNnVtHKBYzowQY2NF735sb3oNhAU5LtaY0mpV9SgX_IY2zSPXsSIu7DCtFj7exc2aZ6LXU9iBwM61PPphhH6_oq76z4JaUaISnNX87Igj65ps750ysT_hRGff3FhhhRfghePFUHqWZDu9q8v5bk.d9ONjp5LT.um.F_dDzB7mViVaPLoRqx6GKCmyjco.tkoPOeNLzKBx7ThdKgThnDKOgpihZn_Wfqq1uIvFnQghs0DixshHLNkNoLwbaYDEmHgdHae9g9r3qv5FFcXTIB_EqoyeOxxDvvEqHXnq1dzBiEvbJT5Rr4gCzroCOXIrYYam53B6IqZwCNzU5niJhJ_ch6ES1fGDiRDXIq_6djQ2MA6QrwUFRBxIMFmTfi9Pl.HkXPBgkSykiwkAmzhb2PlCtHYBL6fjmNLNh2nvZYJb.4xVVntzNnWSKw9Ar1XcXCYF0qWa1KV7cjzyUtfy9CPt0bEQMNs5lKCXcEsHFUhHHFcZCyRd7_iKQf18dO8O8RFWyS.9Hk6m_ozR2GljuGvgSG0fTdwGkqzziDwyb.kmfpvgaXo61B2LvwkYQxQ1krHbO_kEVFO58tavWSbnoNZIgf.FRfesATM1.ng7W4cYBZjOPxAvtPLjml8CA9smOp_B4aeTLEnwS.P951yH8PuEwwNYWZAZ9Ri.ySUg0.Peai57x95UCz7LFl7ZMbDYq1HSMTohcrCYh3qYKsJI1xvkdXG0_Bdr_bAws2WxAnfghaT38PLT7EQb9etLr8_R65pDMXOxCSAX8DrDnyE_69ThzJb8ePvTfA.YK3BZ5PgqwHF2Ovre1KEVlBU74W3i9hS628RY0sgGm0NFzPZP4FGzSTK4YP5iwS_42vHUl_rpSLRxxW0siXTaBF6qL8VPSeuLGxSYb4OzXN4FNw89Cwa7WHDfCY3w2UV1jPpUmEUOgzGpFz16HxuG0aRSt54qDPVwkIE_fSiSsHcXRf1FiK7SxE3hVdEHFiYFqIvpNaa3iPozXNtG7SHa1.EvzZ9KNtvKV4YlVJueo3w0_GQX_om8IuSZBac..7L8gdudXZ6djT2AoATHH9mLsuIplPwkpKAvbl0GgMcLmqBqwdEdJpMyzmn2xvwfDVdxZOLxg1J9PqoFEXV4Us6BJOWRsMxGw5fAufGg5EUWrzHdRfZPahxupxUWsWtFzInj.RhDdWGInOU_1OBnstvWwbrljSyYn1BqJcHyYOJ4B2iPjgK2ifvbK6Ysb_ti1T8EfbtPG1zVycFLpawkMrvvQLyXMuNP.4dgN01jqvYF1KDB2RMnUWg63.OueOZTY6szcnUbMWiIE4UpzOWK.AjvZ7TYuVhcJRky_cZ3KNVOeM5OrHPe2iL0KPreq_akbiRGLcrTe5PbFjt54OZAM4",mdrd: "TeC4P0RaW8QPrpJXZv6A8TtC7wEMVeY9N2cGbcWFdTs-1739147577-1.2.1.1-QDEp42YQ4wiaedmbfPtvYRtPUOUcYiSBlDrxAObIZBVMMAyyAiC.pkmV9vwHkzMTsfdJ4WJKWWwXL37i_SuxZPS6moXnoh0uaFF9h_ac6ha2QJyYf6rADNTsKrfwG2fpWQnfnpwTCgaMjVLcTzBrc5MKP3_okAZXrDAsYdNXueqZl.rOmnq68nsZE4CSoPEp_uXB33dQJ6eHo.dCKIYHc7UMU_TJazfqcgSbqTzUt3POgBKC721qC7r3YXSbGuyBaCnfiQyLo.AhYcQPP_oV0nVeDc9bH0BjvyGiHwcyQdXAQOcnoyN6dBWQxnnB.iIxTRisXOuHB6G.Hod9U8ajjI_hn1Xr0iFL71tqMYYAu5PxYi6oB8oxD7CU8Fy_Ml4jZb1RtNCzVs4Ca4RKsOU2olZNZkLi7NFR7y_9t.5F.jfVnYG3LGUc3ffufMrrzP7eL46MKfUyQWW9ytmFWn.uiM8FYCefY3GCWm5zGXDqimZFRRLSSPX.FLWPYnJm5RhmYbGPWGukxlvY8r3h2uogFv.xf73jwG4rlDVhOzpIVlx.YZO7W7gjvkUDm12.TIW873YIQ3eLU3UDiRDHSNp1S2W6PTwZrFOyUePuMfegYNbk2I6xl_yEoWVIvHa1fz1dddXRTiO6Mlu8zFyKKTCEpl3lrBf.l.JAJbwgo.V7NhIJEd.hsyxh6bdkQIbTTD0EBlVbPHWp3lxqPEkdXbCPsRtCrAcRisyycKwtrMlWAjqYPghyiJ3.uxwOxx17v_rbOGZ6toOR2alordWKqDrUCiIw_UxBmfGe05BUWAmfI7cGI8z3AjLAxgERxy.gRQ1xJ4NGGis1MZl97rOLMQIG16HAVpGDM9MxunXQuzh2tbXHPmhOrTAxgcoYs8JnqlbkuLs.lXIrM3j7OuHDkVGOwuduRdrkWLXkbBeZcOVV2TvJnNVYdkqYv5.rIqLfVEup0CnR5IhKzflfX0cNmywheCSMqozEA18wfJGKYhH2s1kLpfmSf3z1KeAUb7zOZ_rf0VhjY_2XcEcPFCUdV4vMTJVeneih3ThTVxuvy2gmBO4m_ENugCmFeyCDhleCFhFHMa3mpKNG6l414sFsEgn5d_JwvkFxqGIYKjplsQ46jrP3uzhIZ6l30C_jzH9nMfokm.FQRaYVdXTmdeBhmsGcRMVfOLqbnrMJnLcQHEsp_bPq48FFMENm21xeRDRpWGcYtG9Suog8nqOWcTQrDnIkSLuMZ8wVR8.mSG0pZ9k3VuEhSYhPrUW1F7oH.tmHaXKTr7ha6w8onVFq7roizi3hmtvNaP2LU0z1a9iuAK.ueXhmh7QO0IYLGxtar7gMZrradIj.zdb.F9EElHPObMbGysZ37R_ocRjgBVCSsoa2HzLPFewn7_k_6w3I3tuJLLhtPBb4Ahn3h_HaF.NUBJuG6Uly1OdeK82o_c4aSWJBLvaphdfHZb.nsKuBL9numMd2zDQb2TLo2bHobnvvw5q26HJgsm1K7p7S8T.fdlejGSDcKNp5dHaP.6AJn4qYhc7_3fjk4GABQaVtip_dYBbvheQr5u8bS2xdl92sE1qur8oeGCZmFuPYF35mW3IW9OzQhoP_i6IWOEmYcqt1HMuExUlWrMjCQtqwrEnQ0SMtbo5botR_Wszh_UsFsH4yzdPrHxCml.ikqtBmxOb_1UxTjHBDd0ajUWN7Oz3eY6cDg2auAaAZhNzE8QcQVCB4R7glWHCaId4FQuQuNDj_nVAE7ovBgFNGViN5eIwYX8A8DajmqmiBemNydkyQiFSi1hWEdP9.MThP5ZaOONYsHAgL9PxGBxUMYI4Ynlv9TL_BCxw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f801450ca6d46a';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\/4286970513?__cf_chl_rt_tk=cSdEQPPkXzNsuwoljfduSujqZLvhxivap3OI0ddwfv0-1739147577-1.0.1.1-JMq462hqHxF1u6hTZ0ZAH1OKXc3OLR_1Xy6OTHwjVqU" + 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
