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: "yjykza.mit-edu.top",cType: 'managed',cRay: '90f7dfe29843d670',cH: 'DJV1Yt0FxL3wcu9f.w1pJs01shjPMF2x40yA1ashJEM-1739146209-1.2.1.1-bgmFJ72WpTI.Cs6cIFfySRaqVemC79935vjacWrRKhdM3CozFxtFsjD3CBopR30w',cUPMDTk: "\/post\/4708952361?__cf_chl_tk=1yZUUjV1Av6_W_DdcVvL8LKC_xtgqs0FzCYJcKWgRP4-1739146209-1.0.1.1-0bc7o1lYu1VsU64Xj3wkJ9..OeNiNuucUduqhtWRxUI",cFPWv: 'g',cITimeS: '1739146209',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4708952361?__cf_chl_f_tk=1yZUUjV1Av6_W_DdcVvL8LKC_xtgqs0FzCYJcKWgRP4-1739146209-1.0.1.1-0bc7o1lYu1VsU64Xj3wkJ9..OeNiNuucUduqhtWRxUI",md: "Hzy.mA493gxAACttEv4VspGHGpGT0sr860Gm7qc9FPQ-1739146209-1.2.1.1-CwKJt0mBqZzqdGhqR9PZmki_JnYC4k89s7.mro_JDAS7bC3ot2cFMCKsLPagFNHU8KHGY79kakoxudoZLjuzq155zOSqJvlruNC01qxm3Mu5aqCKBp_kB0rUYwfzskK0v0qwfULh9GOFC7GtJm0fUNU5w4GMl_mF1HM8t9sRIUtJqgrBkTEBnp5YG5qG343xq2Rgg5ZZDnQm.4gwRsvFn86JHcv38.6NQ1yVkVVvJqmlmT8jeeUk8adlkxmhlv9mhJXJqsN7ipNlsUsyUD5hIVNW3vU1ulXyukMZLMmvBKEpfetCe.aAybmOtahyMDeMEpygNJDn6Xf9Ikl.E53jSRIU_Fx4u8FYJsJ3peU0.A1tSpXV2KlCrRU_fs5ERBK87Z7eZ6WyezGHA2U27rUsIp6BkWZXL_5rXrBFY6iaKSrW32jqV_yqrS92afeKZp9BkTKEmKV7aTfDJ7Kz.6WIuM4hEtXIuWZZm1QdPmqJCP3uwlMXwc8NR6WnJsWk41VjpO09BTdofasCQW1KjJLPuzAJ0JEEB5c6LBgr64FPWN9lE0_KJWSqcCy.nFZzQHNOZyYh1VSqakqTRQ..C1p4Yb0VCgBeXQbbn2dEfAQwJ7dpvGnYRtEXZE7NNWRpqj4.GPohQxr5S5Spon0i32EsOX9x8x2YVX1z2t4mowZ4xFQ1E.ZIyDfi21QvGndRGeabUycJpcCh7aD0xPru8tCr6T6DOBDAcbiNjCPDcQ8OiIQGvbREkuJShfNb84hYslAtEWw9hiBlXRzWcjBuyA.YG9HoeLmNx5o_Mc_7JULRu6jLOvarY9ywfEskc3CYzCR_QQt3dGvXzjSauQZMVkvyohRsxl_wYeJCxpJ5s3geRVQdFXdZQtC3lLCxFbJRKxHhqd72noV_ePoX_.6z5UBxm3gz6e6vihmXyed7TvbPguJUXnhOHEGLHrTDYNKH1hDEJbiwJBiq2xO7v0Mpwxtv_kfA5kIusry2EMG.RMH7YfhATxjQqDoMsUyBx9T.dQp8LEYOzWQW2vdV3udKLw3m1REAdhFVg4W.iI2Aw.1CmcaW75HSVjepnNst1JG4xQVjCQWAVBNfUMWtTB0ZyDo7F1JVXyPAl6F.Jb_kJUVwWYRirBTAsw1hwtIcGzhkpCXPPic4wz8QEEMZ0b7L2cU4yHehWWgNAjMWDtBkAcvXdaPlupc3pzaEOtDKVpswnTcrNge_0ZNQ4MzPsGPM_LI7i7IXGG7cJ6w5bme0i3LAF799xMnZ170FTrTKDDRjJueAGOc7mQj8tCxCWeSBD8pKgo7PN6ThlIna0DvGnq6l5d9v6RK6YIooj6_WltzLt7iRoMJbTB3AKmRl8Y1.fK_3aGDYZAeiEhG6TtvWwFDleAsivt0siHEWu.ZxI3jB4TQQuYrOwMs33e6Qc_Dpu31w6jBvOO0nV10FoxBkXTMzKQ_ftybXbydxBhD715DttIX9gYwxwYuphjP64IAxeafyt5E0NMVO.9z6bUj5FRU5HLYtCyxgIudo9bJunjRxWs1R7qiDwVeEeJGtXgKQtDcEfsYnqcq7irJKfpD4OtCN0Pycf1uZhGnbRyUfQpJXaBV.EOoFYXW8akanJaVnfWNCEoZHgoJtKhBLGoq2KlqjGcoFW2qddQKrkglVsjzYgSV7GxXNibGJb9zr5U1GYXlnHm2whKjrT7kDUHX1Muf.5xmSK_1EbsZFKYdvqPX1Z9GA4J5OsX2jltcPyoPR6Heh6UC3oOWSUdAM5_TXDNWcQT5PAK_tnRSvYn8mK5rSBtNC5MpqMCjVUaLrBWRGHYVK2Al1leB9vBYOs.bGVZMIUQWxR4HDajp.rwVZ1TWlCfY8GgE0b9YiHf6Lh0RI6FDyHs9LpvP5pTePTqSjwQt8wGeITx16pOJIft5pBhUjmcNLzb.EIwAPSetLL9kJM1qrG540mQmtJIDwojzFc32WFt.u2XLLDxkTSV4EJKeoWbhkl1_tqp8.Me1KJdOJVCgfizs_WbqBYalqV1hSQ90_RQtTk_nnjcCXtPP1P25Xi3Uj_tWfZkRLlWF2jfB1AIMWP4mHYXT0WnPEBwgjE5AweU8v1o6TMWSfxpDHjWkbWXRwRYItMcK.LvOw846SRSE_o2.vOoEbgvoajiHZBtJad9Ztb88sQnTTGbCXGDu4sGEJrEevqOuBSTEQY6_LF9Kq7o.mZuFNzHafxBIMS04WwBI",mdrd: "cFD1pTcCyPxub68MVGV3AprAL7ia2S.nQXNrjRZDaGs-1739146209-1.2.1.1-0Mhxc6E.Bf0cTpfoy._JaPERWV5ArA2aRWb1ZBF1EpCdUk_xQUG5lgUFFjQ.7JAEHQNJLPtI9WKtxinrSqXjSAL9VOJATN9dCZ0qGeit8_0CRbvXhwZZEmsRSXH6JWxt1RpaOO9WUjUR51X8QkKDnCYobrAvcDThvBf0rHdcqMqU4YczbzEqNzvbbO.9pRwCeCL87UE84Eny8V8tScA6vII8tP5BH9Q8EEtKUH9GJ_adsQg3kW_2NE3R86wSIKneQOMVriApIKNY0R3ExQ5KhzUHHZEtqu94Q5oskN.sqJduMLuiGDGkYGWEOQG0bHTUcTwYw4ukqc5TyjdcBwbuVfBDUarPDtjsFMtbcWdmCAxsh_AH2eB2ZbcrRw8QwpePbRrTi5u29agAdCsY3_TAbUvjRQordPCgv_Xxn8F58AegOo6jEGQ5PLgq1qEMy7jzfSi9jJAyBQhxFj2Z9RoxC176A_5IYC0BEXHC79BJEJ0OJJMsFGSBWahTqpXm28_z4rLe7tX5CeGbgxD7Uc4RPazsXg2Z1sTmnTZ_2kw291i.esnpITUUtUH_PEJc3Cbp397VuWb4CDQJXB2Qz3ROzloUj1SvDHj0SVAxO1fsMlxTDNSaBZfKfUl9fWIZo7cXl7D0Ve66aWxyM7b6GU0PgGIXU4ElHf2Mohi9YmmPiq1DhjjfqCvvrBvjLZJzYHwg3S4e8VyhMxeTVwC0p5auETYpDlYffC3.LQWDU7apf4nhX7L_jNgQgjDmTRBemUddAIPl1t3Dx8BoCzAUXqptmNJDdoMk3L7e4lR6Spr.DNOe3nJRkWSRAP9RPxZCvQEBAc6UUzqiVR15j6evX7jPX6P8TVLnqByK80HAuGTp76fuHZduwgJXkVag5jGllPghIo_C5W.9qiMHoKxEW19__fErqjxHnevyTfI_a1RUR84BnRo0pVeW.ifh8YatKFkZuWkirCAIlXbwRT_O1BH9Dg0ZaMhn5G4yL8CVG2rVZ6St_WwTWQi99jcVq2tmIjps7gCmraNwEkULGWMEHt6dJ3nhcefGOnT1AnRSRHGJXcoFy7wd7biQOsBZusk8PYYdCpC_BLsjq7NOEJ0wRhePp79vNrHHNpZ2rpxJBNfnkODPedfGza_J543nJfV6jvcZJNEMpKa9aAWAjGHOrzivVVXIrl9L0rGdMMFoaE1dRm_dnQSJES2FLAFGN.XKQpdRMxfA9WbN7WnvhPbXe3IXB6_Ssl.yH.iJWq_qakekbY8ojk8kjxhvpFWkYGRkBSO9T.6q4tidrQGiKXtbvTh66t_hgg6n8U1xU8V2RWixbL14pxgCzELHjH4NIsUrKlb2CJ9mOeBiX3Bwde_ngYGHc4y6q4noDYaOXVWFbGy9ykGr4OdtEtZmqrPr7UAC7hXiO.BMMsyk99QeMedecwePu4WOl.aQakqx60UpcoFAuoWGWVfLF6H18.PKBvl9hcQSwm0IGlB4Z_PJt5pP9myszdKm29nDefmQ7IyoLbZlpp8VRUS02Lr.REzDrJsMHDMvudiAZl9vssFiqm2venvUaDXQzd.MQQTBbS9BwW2ZbOVY5.UuXCzDoBMo2b5XSjCS.eXcboYsmvzJIxrwRwuqW2BpsaZ3GOTX19ISAIJhTT1c4Qmy8ZQnQ4CXqUOEw_Jyt8epmwHyohc3JtQRPge3hu63xDmnBZY6ilMx6EIsfIbvpOMe89ad_7B.6KUe.Iexn9llqlhJJimJNq.d_ZMN2laNhBOu0q3_85.TZ8YA4lVeTeCcklgJ5FnZp69jp.XK"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f7dfe29843d670';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\/4708952361?__cf_chl_rt_tk=1yZUUjV1Av6_W_DdcVvL8LKC_xtgqs0FzCYJcKWgRP4-1739146209-1.0.1.1-0bc7o1lYu1VsU64Xj3wkJ9..OeNiNuucUduqhtWRxUI" + 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