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;padding-left:1.5rem;max-width:60rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{line-height:2.25rem;font-size:1.5rem;font-weight:500}@media (width <= 720px){.h2{line-height:1.5rem;font-size:1.25rem}}#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="360"></head><body><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-850512702244.mit-edu.top',cType: 'managed',cRay: '966b592d2b1517e5',cH: 'cK7FCPCxSqObsiBrr0UbPkKbkeX.5HWbdENZA3pJ.6U-1753778813-1.2.1.1-zsKGTlb9RxB6lMT_4PNjQ6aCEpm1CYy_BYR6CoIdUui96M0mrtYdcJJMwKNbXJRr',cUPMDTk:"\/post\/8976250431?__cf_chl_tk=ekisXY35TEHguYMCQRdN6mKn1L.EDf1x7UTNgEPVRkk-1753778813-1.0.1.1-k1_sBIbQrM9A94OcDhh0akDwFfePiWu3dUDt7_o7tF8",cFPWv: 'b',cITimeS: '1753778813',cTplC:0,cTplV:5,cTplB: 'cf',fa:"\/post\/8976250431?__cf_chl_f_tk=ekisXY35TEHguYMCQRdN6mKn1L.EDf1x7UTNgEPVRkk-1753778813-1.0.1.1-k1_sBIbQrM9A94OcDhh0akDwFfePiWu3dUDt7_o7tF8",md: 'ML86CRDXQIEHeJ3bCmF8Qse8H1F0xcmEWupOPN6X5VY-1753778813-1.2.1.1-s8soYqRV7dEqbeSGKWhfyGKRCXDTaCOoqoJhUs36mbfU2Pqw0QjdU121j6O_b2zBV8whVkuWDMOXjS.zRaP6EoHl13vfG8S9o.2zyMVm9NiDhCJRxNX8ct2qM1tLCGLvRH6vQool5XbUm4FvCbCwWEc8rWsKrL.RcrFykq3eZUEhVcS43txT.mW.jvhCx4_Bi_wJrI.kA6Nep1tlhV9DszZ437IQkBmMhacVRKI6cWJMa9Me6OOUIEdun6el0.1kBl9zIGyzbpBI9h9nWx0lxlEo86GbAgCuTVEJT8tBAVQ5ShyZzazbo4cTZfiRfiG8Qkfl9uag5sqb.dUr8muaclE5aIZ.3uq2DCl.XYNPjSCIBPZtgvOgDD8P3TNgPKIuNv8e17L0Z.Hg.eO7Ko1vKfXnBpUp5qIPmLQmIUJa8nGbHeBbqbgaf.tSipNO.1ppSL0M9fm7KjWv87WIC2XTLVxzr7isyNyGMOX9SHLZnBHX1C.L0eVkbhaeU8D.P7LgO0wj_qY2KPsjkBonoKpVnrHHo8fm3kdlFmaHZZ8tMYG9QHpD1V_Ln6PzLUou4cWsg1L.cR1rjpu6rU2tEdQpL4DnYMlZ65cemQMaltxgti4jO_B8CQ4ulf.SW.zuDe9IEdL5LvN5JVaYCJwAah9CCmYBKVFzgsj8kSFe5fJQCaRj44SUSVCdjXE86XoSMIp.Zzqhd1.rTrZ28MbaBNP63OmaY3y7gwASAs3QrqRygZW4J_KFOJIX.I7zDQ7k476d8wOmjJZvL3vJY.zFCW8rlasD4APNDhd1cfdtLLQXso_U2znnFQj8L7lLzPaDFMW7fl7FgIyG3RD6KRFtKjHdNQ',mdrd: '2cINtKvChe2hjJ2MVFpFoVpW8Ki4.ekbt8IFGED7_4w-1753778813-1.2.1.1-.p6o1SbszYaIKdoXZK6MQAByYiG7wOkKiDLTwCcTqX2AM26ObO1RkDQtTz4nbucBv_SaBSaZE4wMTdBmG2U1KZHA6w8UK977ZXpzRayx8Ysuni367BN13LpE3rzihSL9rn7iYLvbvXcywzP2SodJAu5vOiFikX9.gY_2j0A0InQ2aTP5hOSL7y2A0PK5HrF02YF8Ef5nxTC5cBKzOPgVsytBEDTlb3okvX5sp.XSNeISHUjdT8WVwiukOi.hqtdDic28.CvkPKKnO3_Br6Z2P9EVnJ_XJbLZYX4Ysp0bp3p5smfYMmafN7JjaGAvl_0RyzVV_DOjTUECZbWmV2qQt._03iBPupf_Zf6M_Rwcn5xx02S6oZQ9qyj8pf4rebMohJLLEFcq65AWKQ_jyquHU6dBoAm5lLJomQ66lDg5301ed9zlTC2DXL1eJslsBLQtKAQsCGHhbYRXBgB3sDgoofKUM9t8Vb1oLq1UEsXAnwjihguakOtPSgwjPUL86z3rQM8IVxeqa6LgDaEapcz.HFlRdANXs2UVKlaZlg99xuHBLd5WCZ4S5X7JQ82g32imudUXqMGIFlSPtFoo.PusMDQ5DL3XOyfdm_PaHm2PnhfdRU_S_6mNcnVjL79VTuI.RovX5c_GF5MUzyiVIBbcGug2tAjMuUxaRoaZi1ehGyTNdjb9IPNBSknxgM6ZqdZ6TMbucFvA6DQDodDcAhc6m4VGZv9AKRT2Z0XZ7T0m0o3a7S3zyZ_HIRtWwyo0egeeHf_Jfx4rDWKDWEQ5W00no0KEBSL9zmt7A4ia4j4aBTfTjtE8kQq.eE_dmfjWpPP80.FWJMvIezEXtrqjmDzsV3IZhy02LENE5VIMIMi9idslM7LQ_gND2SnG9FoN7nPmILNe5zzqqpV3B4l2OQf.kr5Oy5uOWR2ltCamPket_kqsJ200.csaGndHHLyRs.6P8lbaxhrgzGLGMqAWE9hdPdZClPOYqDdR_sEr7TvPiNBpwBgSpstQgHV4w3GjU9NYtBoX_OnM7pQVadG5V6Pt3Q8I5Ee_Myc7nVuvToEUet9LMogDW2s8kf1NMMC4JpQB7OGpQyH1SdJfqLHtgdRF6cDUw4_LafKGLxZmitfi.SPz9yisWZrS4S4ojmhImrSh0TGqJVGFWfYnurfyOKzOyqWhdYRb1pK3UST4W4spI6vLJqLJEpNwhjlO6VRLvQ1ePYwhKzMOwpVjk0ypkHWFk9RkfOXDSxKuekJzTI7o1T8u7DSzq.CncpcuaNComAEC_.9uljFH.1x1YhlXhyLzWvz1Quy8y1b9MaosEGjOnX6HqLWUnLEHc0RCA8V4a9DCLUXfuPs9CTDseY6K4SkWe2SE4JoRmsc4X0HwhdymW04z5XZiwJ3JRCDAhvv7fYgzRhKjMUJm5U2ZeXi1bI1P7r4H1BLknZt3tgD0PuIm2LTU1yPPIQUzHXraHrcm3lVToF846h3t4sDyoTaIYu5ODHXhzIA8R16XKkr7VlvtG0TBWM6OOyIAMvk5bHMNaBzyhDeEyVRvMwhp7CD8d_1Dch0emhqTLSOYFGwvaPmW4Rzlvd2dk5kvz1MlJGB78.szf3dUjhwy4NX5HXPScjSL0nLrYpcMKJ_gtE.e9QloFvE4qnN7PCqaWgaSPjFoHO6mJPhxzuMiCRsDJsHgtspu8dN6Y4J44N6qmV.qoX6bolINCvhT_6vJl2zA4B.iXe2CxX9MypnhU6aCVk7GqSdLDku1aSZP6hB6rbmrQEmWqtaGbvyqZAhx_6VDD0lingMIl.4dBxmgJqPIp68p28Y91pcSbwP6WyZcWvd_tVchC0T_INjKuzZRAX73rqLv_Do_liVNkkg7FrD.VLIgVZndFA',};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=966b592d2b1517e5';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\/8976250431?__cf_chl_rt_tk=ekisXY35TEHguYMCQRdN6mKn1L.EDf1x7UTNgEPVRkk-1753778813-1.0.1.1-k1_sBIbQrM9A94OcDhh0akDwFfePiWu3dUDt7_o7tF8"+ window._cf_chl_opt.cOgUHash);a.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(a);}());</script></body></html>
Home · About · News · Docs · Terms