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-793491426450.mit-edu.top",cType: 'managed',cRay: '9110546f2ad13b42',cH: 'zUlc1S9nU31YpHAYe1d2nqpI.arA77sy2Z.1z.rx46M-1739402641-1.2.1.1-QtjzyuktCu3LvguFuRjFcIurzSlPTmyFngdU5jkE5jZtApqZELOPA_zqt.UsAJAA',cUPMDTk: "\/post\/0291647358?__cf_chl_tk=quc6oXKWr9sPeKB_i_sDZQ4zdlVXMkCIjrOep2JRY4U-1739402641-1.0.1.1-RrlTQXJhsU5Yyfp.yktkpIRFBPAPOc_Wcfwh1BT5y5Q",cFPWv: 'b',cITimeS: '1739402641',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0291647358?__cf_chl_f_tk=quc6oXKWr9sPeKB_i_sDZQ4zdlVXMkCIjrOep2JRY4U-1739402641-1.0.1.1-RrlTQXJhsU5Yyfp.yktkpIRFBPAPOc_Wcfwh1BT5y5Q",md: "tDbTvzLEyeTGFoq7F9qZVxxoXeSQVGFJpKFHJDmWy3Y-1739402641-1.2.1.1-2CwuiswPEOexOjNTBWkjSCNezvF8SPEVsM8bJkjDNb.s3mFXCRp0AjitvsorBr8SvGWFaC6wTHo1dV2cFldR05S4akShsEQ3KSEonflDB3LiIuO38Of1lfseSv241ogTprxNmEXWXRFqgBLj3CZMBxEhYX152uVl5wXQHRVncrJhP.4MvkhprSpi4rw5x7HiqPqP2Ht53ofJu5twpC8w.jlBqjKhy4FTNO6E4lHvwfy3cJ5WtTGK7agDlbrWt3yuozal6Vok132Qr4f8uOVepNMtOefzgO5Y1qkYZdMlZ1fETJAzA7p5ZCvl3CbFKGa6ZEAMkpDUh2VPMun6HM2luFcpchBiJWdOFNZ5vew2wjTbdsR.CtfTSa0MFx00N3TzALnZkp5eHws3QUekxJeAgoRtm.8btrYB7ol8p57oxL.yrsEYO29t4AwRxGpRztLTD611JdpYA9Npn7a3uF2Ds1uDxHPdBqvuC_Dg6wwKCnfLDDMRLF_nhGkTK8N2MWCkX5q0DIRMPfvOjMHqqSc9j14_rrtsRqOCLORPZN_d2dATfPqnwmmtOOeM5ubFTL23zf4p0_8Qix3E_vjMZ8ImJGhRPrmdFO964J54GfYi4CbjqbdgjrbThDm5EyuM05sDlYR8OnOGUm8mE79RW_6Z2d6PTPx3l4ieop1Rzs03jzHwq05XmEMcAHbOOiSbMDeMWAe.mdr05ZKgtC8hqSHJQk6OMbLPfYBGzSgKDmLd179Vbpqb6TjCKgD2.vIdS7wWmMDGsIJqdNBFd4YoKq_RItCzMKGZaFaxaDHeRm_xBt5aeGWC9wn5zVTdq62Jr4daJaazzsZ2DdJosyq5.l48VhpqjsQ0xtXRRhx0u7Ddw9v2O4faOxPby_ohthl3O0bJL9JC0BH169nfW_Eg9SiHRUEmrh3Zasdx_5iJVu.l0W8WE1Yw8WiB4S7Xj4bO_w6iPSnAgMEABh23meFP8HUpKBqjnqfRsjrgYtTsTKN5mwtKMJsmFsHtx4_PctOTC03pZBnQ33ulSc_.7DxWBhDujHTNEwMF_5WJMhZ7dj5pEsfYrjVUd5_byQe6LEvugu0Yyv5OMpJ29AL88mimLnVOoM6uNQctGNCWVJ5TI1sMnoARri5.P5PFOH7cOyzWG3I._hw3mEkWD6Ip9eGrqVUpqIL9y_tOI.qJQxbiHaHz5CDI2.Jj1SjWneelyWOr8c9AYNr1MbNMlvaZPsirbUtW2CI_aY7JbXdtE7Po2dnsH3jq75avAW4ZQKiS8yLHQtB_W.IdPXAM1wFpYpJotP67eUtcdfhI7HE9TgXRxzqDBw7YGVVYWgliPHv.rIOrz0acnspKFS8rF7B3zjCZ1hqd8xdzZa6RYeAbf6BqxqPTymF7YZRDWL9RiJ4UxWZoPmIeHwTJmqELlwWMezaWAT7D1yPibiAL_6T4hp6x.WDRkjRiJP1WsIpNel8pooEUIrrwKSTBLmptfTs5xDAYBdU.tkE0UdnGE.4qOGgxbmpaxScQsN1scoVy835QAcXYGaG.fWtQW4CLSPvPTEC1VM9u.vDTm63tVaeCi6jLAT8TsTd2JRTTt0_c25bvINzpQycs1r2wO2cPNG2xwd_.3mEEQpeg9P51y8DB1K.PWY6XwaToNXpQ.g2ajIH_FR71F..5hJnxcNw3YHnq21uBVUPOtvIwXVoywDVp1C0YUeemeVr9G7YGbqvtW6MflztCbPSHYlRO5IdwhIj8fk3WeIsbka.CYU_xjzDLSqANjkNFMY93XjELGcQOhoVdcaksZQN6RIOJv7nCEgGu3qII8soL_PBUjj_zK1uW01vzmXToyPaH4XxqXiwPYokbBx7zF9ZkJRAIEYxQsDkl6fZ6HQv093_WbzlNSXrLvbzuzkW_OUfseJS4ffOThrdbdkA5H6cc3aOHOqOoc0cC7mg3H1mUqXLgbS.z5XilCtlUnFt3ye7.WQA_7lf5mpvOkErlSezY8cDhyPkUr8UmLyyA_s3eUTv8VdMh2swzuaHBGDmaQ.KU9JkfeQ9k9W6nmFKo.big9a81iLPOUdhkiyzZYZgAVPicT1XHnlXpDV0kjI6c2o1OvWUwoJRhR8ZqPZbT1kpmcDjALKqRTcz10mb9CIAXzZCFP_U4uWWbFuB8rnwnTcakMnSvpVc2py2Eb6aT4fucQZJREjM49SsAv9ulWp1t4TRSRG4ePHvdrH0ae.mYNmPkmxGMQnl_5AIuy_RigdKr",mdrd: "cM1WXsyqPwEhDs0b6kHrPP0X2uCqaSFSvGwgedRJyVY-1739402641-1.2.1.1-E_UPV3P7T6YBTDOLlZPbR.3RMpGspe_BHy.LMme4ec1mSuNby_THG2pyvpi_BnRae4XEMCzbA1nRiMn9GbOjwasSnw_xZFiXPndO8GAcUsYdzjPxublu9M0fuzIMZxg9MKYmbuWybGGxqhChQWj_OgDZYcdFNnzLEjPvge3vlQO2by3OPZfa2g_vAODbG9CpY4_ticXigSILQtTl7cKwZKeKa5coWU3lVT85kHEQxeODH5Q68e6D9l.Yk7pqoedRqtrNDRIq3UBS7dhe4R9glYoN8lMfvVEGj27C1OUdkgAXIYii6WabXAkAcpEuffGbIeeM8qA.edYDX3DrQuUjNjyZSqiKCh6Mshf5AYVrcxyLQMskucd6pSjY_JFBS0xMolpcJkpT5BTrebXicDSmZRyrf78eJQ1T8c4klRoYabdlHFkq7ACoBxxsFUIA5no1G1wkSuxESQtFzaF_GDsqw0lTXdDOHcpIqHiCyBz15pjTJAs9RT6OCYcQOg4iSFl3lWPnmFBX63A04E9w4adSnD3sQMwnjENQhWVTLxl0ur5QRrfd8iGkaMD87FbXbQWiSXqk1F40l16u5NxbwanWkOfhaZlnSLsKhd4XfWBjcjLX5aQARPnfI3GikYYh7vdX7QtgyAL01qRb8_6ZKsbeotcW4EmomGbo9RrcPFfuqh6RWUxagD2BkhBfpMvTNlGRyLKwPTRfH8qsIJG1UTzeOjSi5dVT1Aks6s.v4ID1OxwfubYuDpSDk4C4gvtHZwtdQl.ICjVF72Slaaf0m7f0MD4HSwJlXoq1LTS.hJh0r_9EYIMukwyXWyB.ZDfL3kLw1.49Ip5W7ljW.kfVsZARkxqwGNSl8pke7Ds.bvQ3DEzNE03ndpyu7pmUkPdIcahaHXu4zRi8PuiSJKXXviCPHHQmTldQocfvaUp034Rbo3Y2fPRVmg1W1o5wdwEp3MtYUWYZUzQMfZ4LuHn1GwAN1njOOvW0s2ohmVLzXViB1sGGGnAiKGxDTqlEL2mtyej5JR3cbuxZRzA0tH5apG4TDYIJ6ontk0JU8TmC6sE_0guCqTiADw8wc8WddvtSmQ0Hcz9oar6GZSRhxIjJbbY3Xh3y63efgIvELKvZJ92XcmDiDh2XXAYSbA6Pb.AZg9Qa_ILST20.5n7oDzfBktbbeEJCqHyb74XYSChlc34LRMyr7tk0vNsMIThsAArt_SAfS6AhRdezuzUFOlWyxGmoJSET5Xs41.BTS1flpts7cHAYV0DD5NQHlYhUSOMAnXG5FrX.QBh2zImc1Y3CCuAsBK65cu.RvejW7LqcRL.IDwmwUxLcJpeVdPVWBbwFqLQ88LdDB8gC305ItxBsGv7AMKlY02EyG4xxwNmzl9pLy0LVz5RFmkfsDy0vkyHnn9BTIL1y.bTvj5EjV426mgTY0NV0gTiCjin3EpoVXP8iHyr7wSYQ8yW.Dr40DiQSqtYLw0LmZJ.N8CDkLkRuJl5.Cb_DtuC_sQa1MYTrrgucPbpyEYQla1J_8mRL6gsB_hG3dTiCX8HADWshJ8ouNv74TE7Z_ANzI5fM3I3d0pd0XXhQpA4n6xsHS9c5jyDG56oI83gFTw3JfeUrVOGXkhzm3NUoIGOVkuBnbazErkFD0x.QO4YCp8t3f5KBiRvomKOXoNAkuaEQGo.QYHJd6foHZkLa2WyewhitcmAJ5NcG4a6NGTQnA9jPi77.ItkecCRPZKa8zIQDFBxiflChj00MiDqe4RFV3i9XZfJg4fl4nTD_3jCGX1Orjw7q2koc5DcWAZnt_qK6Jvgi15zIxp5YKYczKoptY2iB2JAK.uuUX0M"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110546f2ad13b42';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\/0291647358?__cf_chl_rt_tk=quc6oXKWr9sPeKB_i_sDZQ4zdlVXMkCIjrOep2JRY4U-1739402641-1.0.1.1-RrlTQXJhsU5Yyfp.yktkpIRFBPAPOc_Wcfwh1BT5y5Q" + 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
