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-134378691425.mit-edu.top",cType: 'managed',cRay: '911054135b0b5a8d',cH: 'Escbcsyd0HgyyX0uRyLVMSw.5DpABY7RJt2ULA9ozlc-1739402627-1.2.1.1-KDDpwkYwuz_5ZruEOE83pW8kBaa04Q56wPsZ1l8tfZ0.hV5FMuGyaEC_A9m_FbKz',cUPMDTk: "\/post\/5362874190?__cf_chl_tk=2GL7mlHueDrMrSUg3QfnoqP2hB9mOBBt4937emwFfOM-1739402627-1.0.1.1-6lpD4wlRyCoDFOjT8tzyr56EpaIJ.yDOkVZlFKW9oCI",cFPWv: 'b',cITimeS: '1739402627',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5362874190?__cf_chl_f_tk=2GL7mlHueDrMrSUg3QfnoqP2hB9mOBBt4937emwFfOM-1739402627-1.0.1.1-6lpD4wlRyCoDFOjT8tzyr56EpaIJ.yDOkVZlFKW9oCI",md: "GG9pmeCULxyNVcSXMTaUlq_EtClnlM3SFAzT_i4Ir6I-1739402627-1.2.1.1-fP7egKWjGylJUyOvhuddmKCDYl8geSF11pEoCwXzPhwu8TeVs.rzFQNoSH_XqMaVSC1TY0fNmgQUBb3Eml4VpWood5mBU5RORy3Cd7tXcplANsTeLjritGEmsHeACm7K6m55pydDUaK3qzPEvyvUGuh2qyYdd5YNEPR098ox_BfEkKMtnY64hIM04h1Ia8_r05uubW8MDPA3TFDSkVPgz6nyL56wc6puwjsNo1rBsOU39a7gSGOVPe6EUa8ldXyYAZKbsYFhVSiK08szCUeNFZ6vdv3fmQDsAj1CtZID8jDGy9hR7yp0v_k.mokwc2mXI_BKVhR6QChqJa4RdYBTx_qRO2AKQ7X_9wFl1QndLxgwHkEdCvzt09nK86r9Go7tFHyiPfO5O_hy6Ma9V.SBWOGRZUayA_Gmi0J0Nz4eZtLDN2Oz6xdEBAiWa1UxAeuxGSwte_Vns3pesXr1PR7qrTay3KdAWj.AsHGQPUvlwE8wsmtNKVGDdTqSBRhav5NkB4qtRzFvyhx8hpZCammFeeEal_hCfIEHniHKIE34.aSKn4Xl.UZtynQb3Yaruw3USeflAiITstjfEArloffQbbEhLIjDttCsc13JzL7xyTpyjzRVDo8Nllbxl8S1v5G40duk8N_zU2Yte1DFtN2eQ98iCwzvL2WleCcP_iRO10iZ6n5ukOR.bJBgRjvGJlqAw2HEF6ERz.eDbObHqSN6s492qHVt3awpHePmXiHlHTua8UaNSSzI_zPmRjLh6v7tMosaFtJ0m6fwm6zbUKg5dcN1tfr1n8oqTrKe9pghBT_5aJglueDVLp.kstuer09SsdyqrkeYUyo82jb99vIinC68GFy6RZBKkyO3rNtTwPCF9mvykTysP02QTgO702ZCG38SWd7OQihHWgrW8kiEY6tvXPjuV1jpNNTjGHygLq2gKFB4M5tnGOB6PDazG7pLGlMAcojhJiPTrLdc9uEVFVp.2SlCO_nKPV8pXgfk8vGmGmXNGqYOIIJnlUnD1ZsjKcjkKAoHlBKYG9xY_5WyRU6vDCbbKJn30hySh5MxPp.3pC5CpqnSQJdBsU20BiW1TGgjigI7L4uVqc4E2kfgWz1ZyNgqjz.xoA42nyzZv4z9B.3PI0TCOC.5EMQRox6EIqhMaDweQgYNibBOLLb7WmkO2IvLAl5Ab6WUZ8X52NQ7mqPwt1KGbSOkUoMVngWQAGfHi8w6jGOLT7Mv71zE6nplEx7IgigFMKADE0v8_r7vjgCpN8g2Rt3EBRhwYezAhVMv.65TdHcwN1KOsfJAxV_vR9a7RW1EfCsxmGPxZRj2KpZOjvEwtDWWTBkUCVAvqbGV0mRwgPfEZi5oNtxYBJGcDOQ8TT.o6UG807B4ze5dg8Kj__AtBD4A9XS42Ft3Tkzuay3JjUhrByo_iDl_k9vb6vIjfJoa.4bmN1BXxu29tOsomvgojTS3AJ4Fap0Yt9iFAcQIcK73ZuHExzbrm3aETtchrx2slM9nb_ad93NITe28bxSzEINceUN3M0BYTw5X0yFBcM2bbCt374_.KWARmt5ZVHlVrokrjf8XuGh9l7VzMg9_V_uARRGCWvyjyeLSpWvlMcR4H_BaCpagPY601Dm92udW221G6fc7oMUZI_J2Cc_EPxdC0Gt6HAQSOSaIsSdWZXBNO99B0fEhgx7vuSM4cNG32EAfMKcFnukqJMpXbSLFOwYHU9kX0rfNKcaaBBW.6HSVO64xzbxYJba5mNy625DXEruvCkbXtUEd0c10jy7UbOAWYEo77prop1_yNKPBpuCccMNvI6E04VjXflPl4ieD79iwy5mAG09CHidkvlRw.gDQO8P5f_1p6kyZReUH4y831WGAntkerQS_51pKQI3E.OAtQmrox4fs1IiKHiwlwi6hKM9kCXTZe4YLqDYwgNr5DtqQJkkU8jXRMPZzUJqTiFLQ8IhDgt2M.BBYXInZFlWIVOtI3U8NSjfhqW5nd2HccQiISgJCCwwvce5J5KPL_hgDexEW2FEb9.rSqOVZPj2qOgTV6FD6qEWVG4iQmJ.Da.a5ZCTy.N93LXISj4Miy9r66qMg7WLTCutoWKrtD0OSY5cSMiMBaVPRzOr8VsrFmt5NjeOC8PKe2MQ7M2W5JxLBrbf_BXphcHi1302497BuxmveZooDVUz2AX7pN6iFzPvyDgd51mOViuzh7UN2FSb5iwUU_Ig6I6PQP70.Y0FNYnisSeSD",mdrd: "qzWOWQl950uLwK1SHMdwfjky_kEsnNPZSIl7efhpddM-1739402627-1.2.1.1-6iQRcCWyNiY6pfD6yiUxudbGhhzU1TzbVarXUaISPpvBrezbLCX4rC6hTCV.8_H2pYtpJY.Lve7p5JD13.6DoT6m53kbYxlJ2jT54j2m1A0_rSpNK_Q2uI4qT0MLcQGFIHSKI3hJW009clRo8tSVlY3vH2Utqb3NmDz6Til8CvzO_8nDwW1vyAOSSFL4rI79YUOsmMs1E3oMww4i8qLlFqHkgAqHaIiJujh0WS5zqdOgyTxNmikoSVz96yVFPnMHNuPWeIbAyPY1OK4gQKAoxci6vlFutzBDea1LteiRleFtnqUuvnsPy5ssCqon1WnWWormizMlEFtHdbgsDPlzTC9q3v874MUEnCBqk76KQ4tNne_SEXHXzw3jHkCrPRUyLTiJNSez3bKQNsgi_KCQNg5ESCD2xln6EzgTU4tAcLQQalydMQFV2hWFPFfW4lptW3VS3NHoenAn22_ZCEpUU2sdF9xW89rtQcBbu3BdIt7_oGW7kV.XliQ.w4eKB6N9D9wCj1Z9k_sKcwcm4PYHtW0n6ZgT474ewYrj8vbuA22BWVZkZlW_9JOy6FzHBIB.VFQRwFXuFGj7_ZY_6VrVqWF9YwFIq.vNZhu33L06_v2AwZOxKKGFcYuCIG6y8u03D20dTGrKMidbRPJoy_2AUEqGsl4sySQAXwEqAbQILFSp6qzwoUXuSO3dV8V1fh_hdzOF0cbcUiEfKtdtSxhfwhf0KX.YuLjv0.RalkPmZhaldCS7DJkDkzcRnmgmdZmcRf_dJpg0wnZzXfICfqhHK8m_smt3ST3vwwvq1gi2O_tIpF_vdYXDnTdXgLb49XAfSsuRjJACY39GgcbGwrbg1G.KUtOwleKVGZpyES6lRwqsy3ADn5u0JARwjJ9hyCC3vFhhSnIEyIufbDcL9S.Mc12BYrrgnEFRfgBqF2tLxSghADsqR7_ZXKNGr8b5sW7N4W77tgfvhUs0yKoYD1aBvYeuy29k25t9riBLjnP5mp60me_Mw8Z37Ea4xy7OG3tfocSad6K4tH41TcUX1m.pMoPs10DaaM77oWjDKP8GT__ntl9HiJ5FjfWLiG10M7Z045D398gGuKAb1bqYJ3KWEOVGRwvXPO1Ta2nm.9XpJLpaeKFThG5j_vTM8h1NcY7FwOrg7mvEPG4B1ADnO8NhbTVUW3StuzwiAFkPzLR38cJTx4WYwVSfnyqBEzuq9SB3nMqe1ZPBSNinUjbuKuzXj6ToZaXuQwGNodAENW7.nOKUE77guEPwD4vuwrxGVd7z4Bhr9zPiJPY6xulKkvQ1pI7MN2TmN928taCVuSKLK2.kVoQAw5rEcJb95w_wNIJP6zExwl98LY4wIFXQMUSu.ThF120AiWhEsR9hckHLvhJDRXQlDztEKMd7urgXaiGiYYAA8CjgMkFIDiPPaZI8qR9Mippe5Uv491EaZijUtL9_s_ehr7F10S.taSmFRhTm_42k1OFMJ88OISfgPU4GQC4VNHCHuyE5fou8WAp6RF55.fEs9Q981i78rmkO0vVItqyoG6bHbwJ0EMS6TJWwOjMveuaEx0yudlU.X9zAsxjiO1OIV99BZWJENv.uAcIeiknPSinU5xAA7bI26en5z2CzJk8mMCcl4I60AV0Fcx_UHq.anCWsL5Zkvq87o_ZPcTGcjn3JBQJUfoOwaHEfuwvqp0CH2HE0rg.kG5aGRpDT6J_K_3Iqt1eRfeAYoa6qDKDcMNKVy5qk2AVfI0Od5k6JQ81yvrbPPdR8AbkuniwgSNRJ2omSZ6MMQ_CHzW6uFiQgjGdymAFyidIYEDZeLQsplrYQgzq5.PrWoA6YV_M"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=911054135b0b5a8d';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\/5362874190?__cf_chl_rt_tk=2GL7mlHueDrMrSUg3QfnoqP2hB9mOBBt4937emwFfOM-1739402627-1.0.1.1-6lpD4wlRyCoDFOjT8tzyr56EpaIJ.yDOkVZlFKW9oCI" + 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