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: "blog-172743709469.mit-edu.top",cType: 'managed',cRay: '90fb1ac87c752d0f',cH: 'U2BMh7fTLEklc4GUzaX84WuXbJjsDvZkTpK1PysqC2U-1739180079-1.2.1.1-lozOzX653SYBgHjm5FW4zKxBCxQCsQ3YESwajnRAjkWz9QnZ7x6BxSIKIHajtKMR',cUPMDTk: "\/post\/0172469853?__cf_chl_tk=wW_IMEqdclo3V2qmDQG7lK0mKFnKeCvHZzdSvYmYCNU-1739180079-1.0.1.1-jwWTXaALmgwMrz9EIQ4WMyfedONtyD3kkYPuaVvc9cg",cFPWv: 'g',cITimeS: '1739180079',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0172469853?__cf_chl_f_tk=wW_IMEqdclo3V2qmDQG7lK0mKFnKeCvHZzdSvYmYCNU-1739180079-1.0.1.1-jwWTXaALmgwMrz9EIQ4WMyfedONtyD3kkYPuaVvc9cg",md: "cib.hS_fZMtokoKzOJRSv1BfSm2KqECuMzF.RTuhtAQ-1739180079-1.2.1.1-ruGDFLsMpDZ1inij7YRgi01wJ8NX7jrvgrcf4aUIv.3stDVJkcIXirwBHUED.tk2Hyy.jna4skBkIvRibrb6f5KsVYutEYO0_sbBC6uaxkQv.KUoEkhqaC.YA57MRcu0sluGKiCfAwM4tHzR1HOU2dEEmxrOVC1fpwMhobjN09FlEYjQFZyLrlGTsyj5f126VNNPxv9xjItjWWKaDbuwvmIoVzRxzGnlKpgaj2N7tbPda1lZjdqiRrtgOBcIYZWTnI.rOuL6oUtcnlm0uYpzWwo_mpe6pv1OQppI_h88X69IyXkyg3zpKZjU9AW6gCz13kEGRo8ij0OokKg.ncjNEg7xKw7Hx2rawvjLnA.PforOOxvup3leVj4pvrCF1trmnBZ_f2f4vb0_bk67zG_ChQ7xhBK0jCuxDDy.CNUCtc1fYBRVyUY8y4vkMYokOafq64qR1kEXIZCEpEk5Aat2kLqZ2tV5EKV8jJeXq8HXfQE1KmluDG5xm9ekt7pP.PGd_RuoAynwhphtD4YlXLFSeeBu4KP7L67vTvBYiEAtCtFlmBd3ABa0jkfdk5fOicxpCC1uQDkmI54R0PggIn752YDCmIvmkgDkjBUIfOU2.W8VzgRfuWOcXCa3ncG2DHr6yRozB1A7v4lhNk.YVk6SRknafEHzu.no1l0VEse.kFoJT4IUVg3458R.NYJ3L3bs1M.qePODQW2dxCItq4TRlTLt6j5g6zATyDpyQEjKyHBH9i5QlO291mfboDYD39nZJf69.HovrNqmPlGwn6bCPKaKAooF4rc4lph5H.YsK21YhyoSxqLOgAMuWzCHV6CR1odvq02gaQDxOxY_BBGNgdSHW8N9fpZR0_5XfFvCpHTjNkVG.O9zBO4hEvu5ZkoJXZjUJoVsxgJrtUx9zXES1HLuwQzg0R.pyYH1l_.bIvMOdB.hqCDx2cmEg71dIaUkHPUXKs_jDwX6aF_xcLcIJ4zf2Eh5uvPttVcaTXAjhwBtH5EmWqoNRJR8TdB5vsoYh6lKEr6XoxzhGLEeiktsbwaqn.MnH.r7JTkdWOtOT4sHHkJo5ax8.U1QZH7T2aWvTRKEXodoZ9WBUPSOaKX0m0n7dD8AOd3Z5SBeHLp0pkY_eYj.4BwN_ptOsb6LfKjHOTGk0xOMq3vk1vMu6lp9WTzjm.sLPWP7skdp7W1IoNoaZgzId7i_X.i1ifFFMGsajYM7jT7EftACm_uI7E3.Tj24QJCiB5lR7yX6RxMcikC9kXWnFiuJjy1YRc.idai53CY5sQuMUsYtYwOy3NvQl3VQ41hSDMxcpt02bEgklvj_BMlbD3twCrCMN57iG_0gl0htyhpRrdLrCbmP1.ohO3Yt9EtQGnWQ5ydRqc9UAG79ERhMhdZ.SCurnRke9RwvlW0ZP3uamSOTeLMKVBHrltw.bTseBru9oBLS_1nSZs8UJWrmDJ_CR8TyepogJvKyCSrEwdNCAEqEEtQDmG_j6mb5eJEEIIv24REfkCUrGvN3AXVKB8OoUdSbGv.w5eDl1BnV1PMT6YlTuKH_qlLo5qO2cJ_2e6DQwaDwY6B.CRjHZ19khpY1KFKYbYiTD7_WAa41cYmwIdpT__TUnB1qZYDyh7eD8WWM6Oueyqm01CxJvB5HDCiaihsSB6Vnh0RCjCCiOajWAhlRtgfhBM3XslRWro2sg7_fQau9.29_KdDEwnEp_v7XQRsyCl9sSsw6.h7tcwfj61eHIaPdQnv7Hh8HiAj5i3jHBEwbbAjbuBenOy6W1HennS1mScmwUNuVPmTqgICS_8vgHDJMbV9xuityQks8PW8e8xvzGUWXKS3AcxIOxsIHaB2BjOZEeaS.H18H_LhRrkJowzTg8zeIsNtfXy3.9AM1ppkTfXVE65njVViIk8mW9hGPLH5mTDJ7T1v77YtGHMOLyBlK9Tq8kKiDjFHFDdXhMfE_nZRAt4JzMqv_54VGWtTXWKzbeJHOR9oNiLcv8vfMScsJ_IXpeibDtuFC1jBHZ5FDzhgbRKYjhSVxCRvZHzVIrv1FD7o3_wI5t7UQeXLvGRtQk63Hce8Fa0izBby4iI9bb61ARy7v4JD26DCX5iSE2BONXkVatO808R70rI4POxcpaxNwDCPtKSvwYOCEQ5ndm3imiASstnXrdZEXZZ.1dgNUCWqxCMVSYV_a.TUCC4.rQ50xqw9yxj5hdi3IUYWqJAuS4j_g4fL3hE9dWv2dwdCN307Y",mdrd: "QQO6zXY.lqHHXiYTuDZTLwaZTc1NYGqH.RKsUpJT6u4-1739180079-1.2.1.1-4x6NMldR0V64Qkmcc_qyadRYuI4XWwEPD4z62ID7v3uktYawHvUgwpTwPl6JhWuekhjFE_L_Dakv9wsvp.yLn27DoZC4V57qIDR_HrOUUcMNySBQ6jmQQ.ZrVv8GMRoBV6mAPCoN3_YUka7qEE1ROO0Z.gJKRxzw.GDi9euVCRulspntz7rQIJZ3KsDU_YsZ9NFJe644bI7Wm4YdhKzgAYLj5yWB3PIj7JfP9mDx_sJGF4eNr0LlrhBSdJw6Sji7VwwcdPm_MdK_0QTrFK_1zgZJG01USbEY8YHgVBkGzHj8NUnE6BGDnnqslwT4aY8a.SQQvpg_gNAbQFIJtUHm5GnzgOJTQsPVN5FzsARHAt58PzmVSoCQ8uud2qGPSgdhVFX0gNm4sFbGbsqh1j0B5BOCD9L08S71FYL4Xm1jEFk5h0C8FHF.PYrZnnlCCJSo9u82x8.yiAEbGDb165Y.7G1M6uXA2v8y7RDRVcdcCHeX5bQsS6TrnNRqmkiUm7.tyVpAlDifWWVaGJDFsdyXs6xLSU3ZVf0DPtGKR4ocxO8PNenHTRUHJlUBCfnDAGdi9UHhA7g.g71RZWS4Uk783H8oJRpmKFPZFiBXD4h3WeZwg_83q6W2GTRcSkKzfao8CuauNM66OIRYZot5RPIWgmPSdhQYJSj.viqbNJ38durRzoGk4Xnt3b1oPcncZ0.aEzTR5sAjvgNzUns.Bguazw2OGmz2VUq2eJ5gguURfWjRQfXH0ulZDy.WYBLgDKdDDuV_AOrwJ2TTzFTV3S9Nlg..5g0ULPsfsszcEcurMYVzrxCOkqurBwdMzZ9RQBrqIXJ47twqO0gJTM4R6oD_yAqDF468vznqKhVEzCtm6cOmEXnJOpHHaxlBSz__R05JXnGlDBLf2aFqHmYuSTX7zqQ9G2bM34joLGpbom0pmT1emrA.zH9y1ZnY.0sReznq33pDnuzrnsvTHEuvXfMUiNtLh5FCf_tAySj4LlIjePjpe4mFIecH6T1N_Sm4_dG.cWkAW1CYUBwFr2mbypnI5cbNpTRNRRynLeqncrcm_obYou.pPxqW0Jt1tNR6kfnZZUaFXguu2jdwyDF_v9KvcRtthzYYdrJz4EuiCFoy86iz8qZftUcVDDtmQSzzCt4Sxxucn1zgpRLx3WKgwSxh3fQynVzAIviN8l6T0SV5ccrvrUziwJHwtvxs6dk.yZFXEecp3AI2oerZQRDy5CdtHHgu4TJqz29QYpYUkPr1els4ss_AzK.JpKdCggibl4LlJ_0yTyM4ZCeX8u01h50VyDLo89J_vi48P4yHdchXlP8_S1gmytHvbvSBxHVUe_0xRtEHunjveswrMzSCmYH81Z03CtJAkoF8UMFeud8kP51dBoD6wb9hFovTqr5IPYKliq5z7XS0tyBi4_jJ2dL8lAj0iDYGVBk56uuNrlPhHQ6kAXmQhk6VU14lgWciOS3deJOagf2kOzRfBK2rwuAoRr0KtQfbKm6PUXjD2wjAKAzoJx4KfoyyEqmDmoYNb8JEDHzXi8z8_JN1Nr15KQ2agfNDpdmL.vQ1jKWUN0GnPO_yJwM9q7GfWrzeHCM0x16pwN8RcvEb3VP8SOctCDQmpVMdKyzzi5m3qHMd5gXegF6fTPcsC0YPJ1t0MC1YWm0Lm91s45ATk9rAuKHLykRmwEmsM30o5atYnnVa8D_xghhU2Aup9F_0st5rS5Mq7xN.wwE462S.xPZU4UU_DeAs3lu.HEYtST2PeiCD3Y7euwKspyI1y2ycIB5BvJzcK.mcdQjto5LGQrnnOttamCCMqgl6i8PaiRsELG_Nuwio3NE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb1ac87c752d0f';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\/0172469853?__cf_chl_rt_tk=wW_IMEqdclo3V2qmDQG7lK0mKFnKeCvHZzdSvYmYCNU-1739180079-1.0.1.1-jwWTXaALmgwMrz9EIQ4WMyfedONtyD3kkYPuaVvc9cg" + 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