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: "735700.mit-edu.top",cType: 'managed',cRay: '911050448c910949',cH: 'wZlEaRUevzXyxAgOcgB_oanZpnuQrxpz7LaRpTYvHIk-1739402471-1.2.1.1-wBABQLJGInYwRPjEXIVj5xModWtOIhvhjiBWUJgZmWcqRGL7ESz5.ieGO8P3DpVq',cUPMDTk: "\/post\/1238407695?__cf_chl_tk=Nwec5AO7q5ZEi65fa0vD8jg9kxS0zVMuDhZs8JCdZRc-1739402471-1.0.1.1-fgwjaxq7PUCTqZil8qqXyzj5KV_eJgwspy.K5dGXcNc",cFPWv: 'b',cITimeS: '1739402471',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1238407695?__cf_chl_f_tk=Nwec5AO7q5ZEi65fa0vD8jg9kxS0zVMuDhZs8JCdZRc-1739402471-1.0.1.1-fgwjaxq7PUCTqZil8qqXyzj5KV_eJgwspy.K5dGXcNc",md: "mMQ7RhuHJTQB7zOKkI2rHK7slX5Hea2NuDmep43QiLU-1739402471-1.2.1.1-Hs556GDBf4jEDQHD2791cHU2vNBkynQ.TO5mYizOEdEgdgROMGQOBaMpR68j.fGBV8mn2leY4LSaG0oeNv71ps5x2_WJw5EtcdMYXHnLxgxFK5YPwCUApD_z_dYkrb9FRZF.qPC9aGcvBb_b98XzUlXErq_9SK5kVmofwTKCK7lqp4Dt9a0skrfq3F__Po_X9WC_4fa8TJS7gmLWL2TFRuq1BzniOP9UzIaixRzrx6PWgtlw32VXqFwgJ0_HUAWcWIqyeCi_QTcPzLKPerjznn2SDObWSTrGTiPUSP_h1hJCsgA0J.pruhSP6VOll7sEo3UIahx446bpNTFzexTHtPtZmzO0Su2tbTvCNF7oCnGG_WGgLPChBB8YJxwwQdcuCEPesztsPhjoYI7fwr_6pJ_bcumCupx5M4MRkhtKNEbo4gv9NwFL28dhgxaOHwNKAy_Bx.7L7HPXxtGEkY8_r9oy5kw3RPnQhoxHspE5916RCI1DW0WjZ0z4vLKHqUB7WXHT5rxZrsnM9j03tiDcrSiNpXcNY8Q59lAJNUz_VHUrBIE6vY3Tm1VZmraO7nL3HtBE69_gnsPjvSP2MjjmCWxDbCnNtRDjl1aCw1fRv47bYm1vsrLaiA43g2KOFtZmnM2K7JTtVa7RoVd01t1sxYWhuj8GcS2dLZqovz5maZ1a7CypGQgvSrRaxbVheACQ_mmiqDCAiS58nJqt._gClGwCp4z7ddhUc5ZJSJJwt4pVaoi6LclNhqG3snjvL_x7ytWXST49nZ9REhhBkZJkxexazQ7v0ShPqNOjsPUZbzEm8I8dzorOY9XPzSqPspWme1D3X627qU7HKTfS16DhXiR9g4nlIkPeiFjAI7jgUoLA2gpx.U.X2OkZnLyrfEXs3eskvEiEQVUc92U6HVNhGmRyYODoIZ8pEOLiDYHWwnOB_cBOipAzTGJkU3kn9fQBESPswJRtYO3u1g5zh7su5mZzDCQEOcZITUzpyqt6TH5g9CE2PZ8BpiYR0tJc5EUSJLlWpMkUKZmhhiCyVDV08OiVMy4HfS6C.4p4Q8qHHAWj4mUmfhXxYEifazBFgESSTAdcCr.ZkTDC_NGXmq1pHnwvlkkEM0.o0YUihF8S4ndyfdlR2iPq.UMwbsbCtAxps_GFWnes1N7DYnTYt2Ke5M0HcMhOUupQ07HfIxfJzyU1mAvQ93dLqOd7eHmijSNSbeTvVOFSb7a6dSRQASYyrzRGfq8axgLKabf06H4gQGcW5idE.3lxT5CwsMs.5wgY8Xff26RDuOQRTX2oGnnVvxgH4dRO8Q8GQZ1UgQz3zvJo2ytWaxliXcRbn2dI61b4S9tittgdK8Fi.Oo7Ilcn.S5RiympSQp27.X0SEa3h_smSLeGFswcV7XsOOWe_WxxehOXJdQ7MtKQm9gzFC6i.B_inyoDvF_ocgq_jqPyNFDRXVzDT9u3n9GoaDP1L8gVEZUje7p7Q8uD_UHsJguTm2sF_vwIdYZ2qhh__EAFf5LG8.yQbZzCNvF1JS0DmN2erKyF4H52xa7wwc8ojnvKITFgh8bOP2xtAzCelpryRqwldj_XKv90G3D7tTfbWoSiUFG6ibAdD1TLM12BztoWpzWxqCymsr.kI_9la6HKbvXA0oWAxTahCtu0h.f7B3_9YYMarz79jorng5tl0mCV8QGXtkX1P3qPbzvTr6Z7cGE.Yel5AIHFEqYzFxfCWK4huUYloq7vQPiw5k0hY1Syk3FuG3cwCuU9iwQky4hUmTkcYlfmzPLIPo6uvrLsJyXUQt_CiMWdQHV.AoM1xKJpbdSisQVPvZhjyW37VJaRmaZo88NrwZ9byjthu1lghXY96bQuq8HT9z6g1V4LbWzlQ7mZxTzll7Zl.1nR89_RGAdfsEsKEbb987qLFI_zWb6roGGAMPjujoS_ctoypebSHmtBojpBiJap5n.gN8JPU9URRQnO1q35OjnLV.RrTy0uQI.z.90J7WJaDAhir3EneaGTOeEdNUYwrbjGoTJ5ljCf.Om_1XMKSgo0zNA99wBP4km1Kv2d.Sok1abkJf2U2ksyVzGRton7MWwU0qrbafe7WU1uCFYbeF2VrATX7U.Foz4Z6z2DHJtsT6TGZG7CDRM_5J.dyDXLYjb87HoLWz2GSML3s7HUh2n416.3QQUf2K_nBdpWxohWEMHGjvz6s8.k5US6PxFQNwX8cMpIQdY",mdrd: "qYXW6esDkbRCgVKbN1Iki62j_6Puvnyivv.Z2jywUtY-1739402471-1.2.1.1-7b0FhG7kzCDaKX7B4uDXKXl5e7rqqyz3UUWF1QB5_R7hNafYDZ8Sr0kWay6jNhIKlxJ25siyDLBCzAYQcaGaxct9SFFll4hboSsJOTplUFtwW_3lM4s_79d0nIhBH48cjo0SkfXnU7_mxXZG1MEnnZo5TRjBY_SAezFFrA5TP0eAZK4q5_5WZ6wLPBI3x2CyfriqZ6mNoHeFv7PW2o10eHmiD9neCVGfJfLb50OHBI_WeDzrZEX1eD_IRPi9iB3Klo3FJyPOZaZF7xyXdqe_eK_ObDdj1FX00d0PNGNXhn3iOJv7O7_8.17LtXHmogAWSn7u3o6Y1DW3y_XGPbhYB2DEzjsYJN_zV6H_E4PNtzA83BU2q9256o1l_OX6jLhvCRbhU1YldyXR9yeFl0OAgi8VxqlsvuY8vVaVlybrJQa6_xuoopkUZuvUfmHujkj7O3ZjttXctcm80_w5z7BrLOEdW90EutdaKsgamwM0cH_LB58xlf2JSm.qS0zXvmaYvwNyimn4vW1ojBa6McDDydjvXhU7qYkMLERFH4PKOCsW.kfoaiHFg2lG4kpMPI946.VKatjj2qf10rFo96Ec0x3we1OwMApgXbvB.5W96HkXkAoe3Xl1DVq51_iDote6jRS3JRowONJjvOAwCRU96_ArYvY4NtNVM9ufyMwaKxzTZAY9mwQa2j5jKoAo1OdmtD2937eK886AijJkRZaKaRBunxWv.YGdZ4nBDIOfEzUlUT9Yfmlb4jYy3_t47.tr20ANxaGUtBWvCGnVN5_FX3AVcnMkZBegeF6jS002mPmii0bhiMMAktaxsZUYvSzinAZzKpfK0lGSKAZoGqvvrHPU0ukxd9JTTbhFSX..aypMBGCiPN1fyhTyfNnn2ev5sUDAVMPygDohZXL56.dFhpYIr1jUpPOHMqjm2bRh7nhxSUxIHvEHTE7JgQMt4krRLOaNzVVZeQAOkMuQbDRBpkkEv0dagwoEzmCreJWh0E8VUIFuJ68aY4lNB32.Gftgm_ISQE46PA8ttKxfXj3oVEIniPcUJAYWSZdaWN1tOESpw62p2xRMpoWSGgpdWVPJB9LKFOsctT_HWvtTErAc6dNfyrg.FnmbW_u5PaUHoIFEklSkhvBJJpm6AEAqY8OWemtiVrW7DYn.9ISUOBL1q86pYzBN0V7JSQ3W3unjqjJO.JhtmxbjOFFjFttTl1NWEETZBd3scqy67X9DpRXRiSaEG1xKIsu90tdeo3xZTx0A.ImfmvPoXG4K0bx4J5LZNx8eThpy1UBYVgIPMoex5sR44mUoJtreQXedgkrIEs3jmIbxU5G_R68BnUTHyCfRLMUISRjX_JMsh.JqRm4uYlluUqfr0udVBUvMslAvphL4GGuZkAxiSNMhYcejCr02lmPqagJk982jhMd7ERjQHSOG5Hbbe3VitaQLroCXI3xQfYfKz.66Fm0ZcFoJ7lsUfJ6AkfJF95RIP0EGIWQlQfAQQRdmh7PXcfWZLv2GTttXNJq0h8asEzThYq_E9q4lMoa_wFeETUjPTOrcSRd6UhDdakEKMvIjol.inRPZwT.wHsldn8ZZ5Ir2ew67kNU0eUZMiY7oApcTFqWXnOzEfIijEe1QPFEmeuaz5VfcMNK5EW64IEXZWKzMNZeeQSBn6vGymckdcPa7q3T69YSd1QCCxGAjGKFoJs.Nx_yUQin13E_3s_zXnjts7XwQpMVX9w6l0rP1Roc527T7tcxU5DwawbzpSJxBvB.jCvbb75sIyWgEmkhxlFi1FZad.44w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911050448c910949';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\/1238407695?__cf_chl_rt_tk=Nwec5AO7q5ZEi65fa0vD8jg9kxS0zVMuDhZs8JCdZRc-1739402471-1.0.1.1-fgwjaxq7PUCTqZil8qqXyzj5KV_eJgwspy.K5dGXcNc" + 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