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-877627376858.mit-edu.top',cType: 'managed',cRay: '966e8a716bbeb849',cH: 'LPyagrpnPKbdqMXJhDuWXu1eTa_gEMcJS_3laLDwrhs-1753812288-1.2.1.1-_6kauzdYLIXuyBetciVs.B9m3duKomUBMsb97yWtAWhJZyJnwGhIDZGF..INa.pe',cUPMDTk:"\/post\/1024865793?__cf_chl_tk=9sx9Wg2IAdXOrRpS16G.QQA1OS859m9fC7uCQqxO0_Y-1753812288-1.0.1.1-COt94bJCvpi8Eu_ohyObNocP9ftIGs2Jg_p71vkNr8c",cFPWv: 'b',cITimeS: '1753812288',cTplC:0,cTplV:5,cTplB: 'cf',fa:"\/post\/1024865793?__cf_chl_f_tk=9sx9Wg2IAdXOrRpS16G.QQA1OS859m9fC7uCQqxO0_Y-1753812288-1.0.1.1-COt94bJCvpi8Eu_ohyObNocP9ftIGs2Jg_p71vkNr8c",md: 'tDNRDo_KCrAR0f.boy3IyNRmjBrfowEGRJjZEJO83vo-1753812288-1.2.1.1-fSMlF3jecfwRrQzxUmg.cUN5vSmgwHgcI8L7lBPlzRRigrXBOfzagPvGNi58MdkXOgHhImJl3Y.mvF0KBkoegb2k68.Insj.XqgvDV1odQh9o_ez0l.tPbLeq8r7bTkzbrNsXOQqa.ivMY2S6O1eY9_AsuoIG2JAqgbShtHEkVN8XypwervbQ804i8d4tMXDT8WR.cZms5ASraJH.ohUqXlz0gHc_gtOex9xbwHEnknqGZOSciV_KDJaopGWKUUapE1raBmIC01eAMcqPLydVVdRYo8wCU3NKv8TR7ajUHzvCuQY7pfr2q6CNg7iyxEhrvQzMgPoCtoemfoK38Xu5kIjx1OSobFgTQ1UAN.38r.CezkJk1XyKBqC_j4saoQCylEkwAX85tak9ANUXuC0nGtv9YRdNg8a4irUxMnYoKo53klct_35JYZEoCybzVVZM0FnMUaEWsuKIYncEspJn1yTLdrB61IGd87LD0VU_15eF9RbcrFsWPkzGAaVYlAsKoVDbLyAPUbaGSHqqUT.ZZ27dnqN88zvZ9am.lcteWG7iHvfGA1gJc_9bwrlEvRYPMmxHlvFoXmD.J8eln3QiYVoOgUhDoiCdkA6YsSmDAX_scGCmsKtOG8rhpikKnXG62wwn5r3watmUGs_s8I7H6T.dZZugaNer2Ha2exeiSOyNXVf2.W5ZAEc9e9a3bml8Q0loEgQxoLOiTqxsJ9vU59yoRIZgZkFcwD4GBKykjXkyTFVc76U.GH0VpG9U2PwPIj1JFH3EuKTaLObljoauBMZIohr8lx7FlFFLctXxwphGwq0v6uXqV6l5355Sc4nIMYQeJn9ck2GXkWCLHd_Aw',mdrd: '2iJ98.HcVtltQptKKAlEoxJyagIA_lNKYWsxLOM3hG8-1753812288-1.2.1.1-ilFSOJ2GqzDy9.2p1yyyNnuhiXW2GAJY99.dbdSdNCcDiSSWA1awgFhrZuzovgKkCPduFQuqdw_y0J0D7G.s0sMxmXPQ3Jxu6ujug14dKBnYBgUtCuZyHOP1F7_P4qD40PMH02Pznv9UcK3zrKFcGlPoFduo7WjxxiuwzuMnaadL8ym04QewO.7xnte2_CdYyyc5g6L.PbLdU2ECe4ZjX0bDqt460B7Vo4RZXYwaWUXl5SjI4C6myNOhh1yIr3_GQGzX6s25aPOCcxvWLsgrx8WqiNamrga4XFhh1f42VNDlHd1imACseNi5cNbzTyM29Q0xmRKQUSoKO50d.XV._iKjzNm9S2gwdqagHaYMdvOzG34Wfjz7VOmIHOa7ZQS4MaPRYNFKY9fwBv1k5ri4vYYv6_EBYlkqa4mUPY2_w7Wcgbvf4tO1vyv4dbgmFZ48S5cth6WG2rDSIf_ZIOARhjvD3wWzvov_uaQsFeKa3_4jNK2SjArvDdGj54TkGIa5pDf8FGtwJYiDuGobtb.tV4puMUOa2ozuOOSXzzjiMklfSrWULjS3wRjUviSqer3fX0LkE5vaaVQrQaMi6wA_sPaMDWx2Gr05AcUQRwZkTQHHDgvnttouuu0xgScpVFgewg79d8Hiyx3RhEJhQmS0wMaR_rfYZtw7bNU4l3vEsyhYjstinth1nYdByEJ31ETcXdO1FxWf7_9A72srPMM.RmmDeyI_4a.3oDMjR6bQwZsSTTmYIB3.AHtVXVUiE29AJI9CaRDS0bJxOwaUo_CNdVpH69vfimYzv6qqdw2Y30BXN3R_h2jHhbvZm5RHEssiF.NZuMzqserw.2QLvY_fHsWfeJJ_x.x.lcUTesB8fDPBCYNRhAu.c1piEkPfd4j.PZgNJgLNquU1VyAkWlels2yagbmJqpBL49yqQSKq3zutmLFqE__COihsAWTEZghql7cEdN1PAFyZWU1JW3bmNsgJmxaTtp3Sy4KYTNxkdteVckZ7VEZrG0tA.RJ4RQd9.9dXYpYFT6jls63daQKXOmfb1fchl1_vq9YgvsF9122s.PYwYxagcwDLw8vDrz.X74llf.8ZbU2MHgARVCsQ1aG5KRLldNjEM7xInXmlAqhgHKP5LuFRm1WUzWbeRAdhiaRNQ3wcD05zz6L0uY8Lbhz7ijIouTzX3MxYrXOtiaA.2AvESi7lxKKzmMcAhLs3myuvVqsnch2fmFP1.3A6sjc.CrhNu8UNdHjWhARJ6lkY_sZ0Rhp1m1P2VyV_2HbMy9v_Kkq3KChhcExvsBBAkdl.5tMC82dRZ.khuUJfIVtAlr6Q.uz.9gnEKvIh2PE_zLOrd1XzYzmVz.u9B3yLqUookuQislFHCYL6yo0sEnQ0R5TVdXOl1XCL96LncS.zVC..u1_KaihbDO_8paeE8wcliz58hUIl8QV9a5Ql6jtU23PVPmkYZwddJpdnaZzERxeH7myAB887yassMcdgVTkbRZlYT4xUBtRVjHeNnl2WkOLouxlOFYjfRbiVkRaRkKC_USd2Q16zcqavdbVRKJJpPzVRswPpZl3hlObD88GfqTbvdzFjUHOYWUFx1p8UbF0OBzg0tJQhEEfQcXxOL.5P3Wzn6Tmn.RO2o2PrI2zeT_95YLMaUsdqENjCsAzZ4adsm.D.zMufhppBcp4tlCjOyZEWKLhVIA0X.vAE9BRrGrKExK0Cs7PhTfDgoHS7dBURH1aFSpger9KbQenpPVpG5N.4RSDWYGd04q.c_7T.gGElEp19Pw2CzBHOy5KDcU5izQfE2EVCCcDHgpSiOja8PimgescnqQy.8ePOI7TfcXnjiB1VGh6vJTqQ42W2HU968aq_2XQskTSx3I0tE.wUysPdm7wQImxdq63Pyjnal.i8lP6W2Lhjn1juMmWu',};var a = document.createElement('script');a.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=966e8a716bbeb849';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\/1024865793?__cf_chl_rt_tk=9sx9Wg2IAdXOrRpS16G.QQA1OS859m9fC7uCQqxO0_Y-1753812288-1.0.1.1-COt94bJCvpi8Eu_ohyObNocP9ftIGs2Jg_p71vkNr8c"+ 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