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: "792260.mit-edu.top",cType: 'managed',cRay: '9112a80359f78009',cH: 'iN3BAmaPRsfN8dUqMLJCKgRK6Km2qcceXcabtRFOoe8-1739427036-1.2.1.1-_ipIhgmuBVp8GMCbDdIleRB4gdaYqwpDGew0Y3n3MFHcvC70_txck3emFg5A0UME',cUPMDTk: "\/post\/0513974682?__cf_chl_tk=wtISqp.EceHUVYL2x00EGBbfdo5HeDuA_.ohzU5Twis-1739427036-1.0.1.1-xTjRWPvyAqqpVbQRQukdI6v.JzaEmujM8Ye40NftfGE",cFPWv: 'b',cITimeS: '1739427036',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0513974682?__cf_chl_f_tk=wtISqp.EceHUVYL2x00EGBbfdo5HeDuA_.ohzU5Twis-1739427036-1.0.1.1-xTjRWPvyAqqpVbQRQukdI6v.JzaEmujM8Ye40NftfGE",md: "5lmTbRWYc4r44xPnWi_45v7xksiUxG5FsLpESzYPK78-1739427036-1.2.1.1-OXl1AjnL0qGnaFfj2W1LAf_c_hEze4PsolLpT2PHR_JUXj4Pylj8Z6kxwGdXuoNF5FzlDJ1_oOv3KKf6SBK5ziTz3wM02umiWhcdTMNpq4xhqyjPN1Rq5VLlp_Qk8Y9Kw5QiBENb2szgDzsBBs2V6EIRHcWcbcxikCdeMfXECNnBc1HexF3x2O1A85d4aapoeskYuAbTCLiLTv1bgvt6k9qu3qtrx1.xpbThnC8mqR7EEi5QeCiLKco5EGjluDL3penGmG_NTdrQWqwsJxSRawyKrh9ONTcyX7HjNI9ld7PR3Ym6O4WwAbvIlkJGEgn82oAygYrsHdbIcDFCpjBPAry6Md9yUPiTjDaGyvGQoAUQcYMsMhqV2_TqGV03jFRBiVtuCkV_afhIsQ.OKU995utX45QmySMkVNmeuJmNWPuPinutfaAQsSqZvJBl_.YDDWn4pMPK1iNvj7dWlLG0D4CCWYdZM2_4XMezf7GpXovYpDCvGPxOOP3FVMdwUSv8L1KhP5cL5cfk2xgXOgW9APTxCNlgb9XNyG_gvXWm5Z4AMYKaVhw5I.loazq5kCC8LkW28etmnquWNgobIHMITZgUavf.CCD9vHQhF8sYKyddpxVv7IDigE9gU8iXCYXn3Nuxo2969aAwPQ2wyIPPteH9jniUwaFeW6iZMIy6VezpaGrqTRKV3oMQiepUl_rMMnYAar5bvk3eehxGLoxN8KlgslXZRaGaf1JXOFj.JnKEJoWsbZWYB7zW5OHO3sPZ4j8k6sEuCFYt95vnLfy57HQy9XWbp89TTVHXctixR4LI6zQ_qKf_0ZP12LGfSJ3hWJV_DNBiy.whYnyaYSHzpUSOpUeW5Ur3uQ3wx1M6a2uChkW7uAGSaLQm2PaXYuDAp_yx95REonvxA1_uQ26KdnLKqPry_77ZVvA9A1elYc73FU74AomRTr7GaqN9d7h5s2SQ_05GOeoCGW9MixvwC0SLd745Q4wIuilq4Emzavb_TOXs7Xu0INcQtFejgQPkDiGbZimn3FIu4Pxl4XCE.9rDx0dWx0grpgjvqb_VWE.GOtJ7w.B0QxKjIwZe3fEcmB6raTNE589EfQTJEFnK3Gnr8A7zYHAWVioiU4HWUGbrjSFKNGqi9lgZHGOldxQxcAKgBp4cRcW0holkXudzBYuVcVqICW.BJiRZGeubnK.sIe.AyaQIV5LVcdBu_De0XnlmkEpM1yL6xdIpfabDV6iYZV_1h1PXue7RSAg9GE8XqoT8TehEz.rxs2RqXMJDYARDw5IIAfGuYxK_S33NP6ILbP.jN9U7biL06OLUZT.VGdjqqLglLBmJTVHPNHGMjieeCFRdZtOv9nugx8T6Q_SOxEywSTRgc_OJF9Xu0owS40btqpsYtxjAxt5WORCl0dtQBNj4oWV5o1dg0O2bopq_P0ZD2Lnoes1EL8kfhLdV33F9YnLW1jEOpv4cBJShTsm3lSQYVBpEOcXIxio5evhuw.GIFfJAr_2aPUepWzfqq2VY_.F9MoIXAaNZNdChJHYlhos6dlhXjV9X5ux5_LOurnRN8KiK4.sBfbjaPUxEqnXAfpXxXYCvip6WN_HOfzPpBzh8JlNGv0Q6N_g09zX41Ii0BkXNoP96VDgISidNTMs67_WYSGzyZ8n4YBHZjpggoC3ii1v6ZnNLbRSLCXWCCe.e3NqpJcUyi.uGvWvnYBVErA_lYdU1tfgfNJWSqRACizagLrlDkj1ncJGh.gcxAYleaIOuBjqSh19n3uorV_mqQsGvefXJkKMU_YVSEeBtS2USqE082Zm5hB46aBkF9w8wWcN0MdXGVP_vShgfqvKS9K0.MpNqeFJuP1ptN6XhaHoDMAAjCIEulIaTZIEIuJlkvVBwZxU2Flz95sIGps.7izZWbZP8stI93EreaiJFDgWRqPH_n2zhNsJFH1fu62h8bXQ1yzkTtHJnKQw1QdHGvrrz7XiZHdGTOF4gKdyDBb77jSR6Y5k2j4JvuNMhYTvGRol8_IZArXXkQzq.Yl4IBTi4PfcBUEfANbtwF7xOkV6EoiRsE5p_ySZI72gMfRbU5pWg6NsYswp8vKlh2Wl0XTe8lMbRCU20v8W_KWFB1gH7oOkI2xXlz9aFfeIhJqp3ncI2rGxjExxQA9k1GP3Arh7pRw_u_AUTbC1VCuuHq6mmq_7SJFMqm_xg9zJFMOoRLPIUg1vOlBNMhLA",mdrd: "RCY8kE.z66yqFNYY4.sP4wG4oaemRRJxKsX5WMAvzhQ-1739427036-1.2.1.1-P5jENkVh7.diWVBYmYk.eQsE9xlfjeErQ09uKlH2crsz6j8nbNpuyS0aMtPjGF3BvrQPaApLqSXsXFBxkiFIFgfOoHlgRGr2gifZ58V3SDOMsRjcuGsv7S7usoWKBHJHjxkhw9jBwot7tt8SGCJqOysPST3koUC0R6QDFynMlRlPDCWuOvQ_LU_bc55JZIHt41madPKENCJt6RSrpxvCCreldVjuq9V8zf1wCQuhme0g9QU9ukNX.sGEdHa6u16d525MwtgTwdij7B_hvWVCbQrhoTgrP4Yn4iGq6sfVY6fuiDMimZGc4vhZ_uCbB45NNuf85wKZB0ddjPo5cUYQlvl2CWwDKfrbqTRX_9Jj_77bv8.GnXmjf1_UCE8BimRunGeZ6CgGAVxHd4HuUbUSbOx0WbCOeOc0JJ7y.3hYCJpUsj_tfEROwIWPnXvjLOkN1vkgFpG1.GXqdHgRfO9Gxbmg5xfc1NoLwm89bdbN7A5e5LWAJk1RVZgq7G7cbzdppJQuEY2Uc342oxeYGiE3rPa2OwHgOpfiveLT7OztNkAFJ4g_ZzAaGSrk3mhNwZwaG6MjWu4.PLlSW.ubhBuwiPGTYkgyfU79Zcq1nDDaKjkq8mmTczvWr4Ru5Nyj4fJoRFrChEy9hXMq7cJVMRIutXoaIRxwzd4ZXtH2BZq6Fs5RX4Yn.9r.lwhFs32ZHwEySFS8f9dzN7ORZjGJF7nkWEW8Hj2n4XDrzD8v5ynZ6yyv89FkgUBwonYN.ahjmYrWAPzh2E8jLf3iDoIp1aeP.cgLjodBdnofzPJ3.rdhUYhWhvcQ2ZNcki1vvq5xkO8TsRZzneCJInikY3EPi7TcGiMemyMuZxAqNlCBzoaro7oU3yN_bm0GWb.9JiGLoyRgGjfJ8ZpI9HqAYmVOX75QNdL4l.ZPQHNUFUAxz4nWn4x7u5.Tk.xiVqu70YW1TFuXjpmIUTXEQTTImk1YpbYzRUawAa3DkO4JPsmfgUzku._LO6VQB0kGooH3pVa0UX1uYhF3OV9W3zU9.JiLy5U7bo7mJwi_83iYyxXcXovWd3TsRGHoeXx8bP6M1b_j4tUNyEEGTm6u.LyQ8m7QM3cCWMHGdWLG19Dy430.UDF7vDEV0uMz0_V.og_yfE55JioMbdnbXFFq8zNqS.7VuMLPtJSyNPwKjKBSon5u0dStBJo49dg.5NEK_SpC82LBMqXfwTM.dzoUx3wMwXB.7Clxh0RRsdcJYqhAN.3ttxi7H9uwvVOayL0LRSf8eHh.auNkiavZCeT24dxoIJCRctNXT0c4fsCXa2780q6Aax4CCgZFyW1SqX2fl8XnmH.Y7G1H3rwHF.KwN6JtfluM85m86tAKwdMl8JElwJ7Z4Ox.J71owMrIHQSsa9WueyN7SNQLkQxiEqwFGf1T3AzmtwnS_yK9EVs3I.Kb.IDcd7e3w7icDkTiR2kwdb8Ix2KUCbMjyD_hi8IXT4WCQpFib6d3YUIvP_WqyDLKRfpHqHs9hKLu8K_oyk3mc2HZOg6hK2L.kwXwrPWislytgMhY94467u7gclnZFXWyDirxQ7Kx8bkyl.Yy9iBLuIWtmWx5tJbKBEypvKgmQiOkZBxe5NLBhd7DQMPlyenYhE2IftS9oB2Y2tWKGBvrYJdXzDciXWBbPUb3JAyxYNLa13hV_yKgruKOekVWw0zvKhKN22GhlZ0djPrfyEYHm80tSyE0VTNeApUBbdAFFAi_BokZ.skufoMhZeh6K4JtO._G75D4wCfhOCcmAWQRf5qG6TLAMW_tQl_LsbyfSKF9XmwIi2a5lQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9112a80359f78009';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\/0513974682?__cf_chl_rt_tk=wtISqp.EceHUVYL2x00EGBbfdo5HeDuA_.ohzU5Twis-1739427036-1.0.1.1-xTjRWPvyAqqpVbQRQukdI6v.JzaEmujM8Ye40NftfGE" + 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