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-439673516676.mit-edu.top",cType: 'managed',cRay: '910e17643aed18f2',cH: 'Ab43c5IYNQfAtuTDD8kkZ2fMY.WOLXZII.0QZ3HIdRs-1739379169-1.2.1.1-YNPlP6SQieUu7RtHwBo_LW1fwM06ZUFRk29AczhHL8nclWnEJJ3vEMrRLbWv4Jxe',cUPMDTk: "\/post\/5490728316?__cf_chl_tk=DPlXQGqyBxO08IKQ8BC5sPil4pJncSTgmz5J0UuHmkw-1739379169-1.0.1.1-NG0ewE6X9E0mQEVmUaAjpc.IKhcMAvhHAawSgD9v0kg",cFPWv: 'g',cITimeS: '1739379169',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/5490728316?__cf_chl_f_tk=DPlXQGqyBxO08IKQ8BC5sPil4pJncSTgmz5J0UuHmkw-1739379169-1.0.1.1-NG0ewE6X9E0mQEVmUaAjpc.IKhcMAvhHAawSgD9v0kg",md: "lSOSjSPJyf.2JOWQrSbJdZWqwt8RD9nSYtDi4A.ZO7I-1739379169-1.2.1.1-be1RUCMgjclq0Rn4z.hwg834Dr3VkGhX4r5hVMf_jk8PmyjegGfN6CPFE16hpz4PSdDXef9JZbZabNyMmWHKfj9MKc3KE8TI6OcQ0NnoGXCpRQWg0dcAKYUZVcuXEVLvqq0HJCDvq0QM4Eokxrs_N4a_rhUnSziRZgg_ixUqnW5MWfnU9fScypQdDivugkOLvsG4SGydYOWs4DtgINhNKlcIokpOtpXdmoZyNICDvzajcsoQtbAPDtLljgZKWzt_CIdf30DfioQcrZIfomHiCztW99xLKz69zKo3PPG3Nrm5j_arzRroME4kK.7fDa6nHzi5FQuo3Dkrdwxvfk.Cpto1A_2af.or1pwxFHghgBf.p2I.HYuAEo1zJHnWjapMIByaX1GmrhhwpTToonuaAK8vJmOF_pT2qI6mioCx4RQJ0cPsLRpGqnayFi0uiWjIbAmneb2Uam36ejyax2HA4A7W.0Ea.svbrqxu6trXKq1dTe3AF9XtKDttoXnh.SdhgfCt6X_SUFmWL1m0q2ijiAGMKZSQVhna6FPZG0GPlGJ6NyGwzZVsu6E0OtUf6arnsrrI7O.nO6PSv5q48UmyTzjI13EItzKr.cq2gbitvJB7gGPpPk6cQOJElw59HESbm74c2WkVZFaUyyoIiElry7gr.IMlAQBCddatllz2ani6GkHrrLZl0dfRJmjDsiwYDxfyaUhppu3RUkU8YHC2Aeaq1CkQU0UxvbVqcmOhqhjyC8i5uRMfedOx5rw30fqxUmX8gTjS9d.YbXBE22CQwtxvT8NFpXZK3mLMMLtdAyWZMU64cD7OsEKlD1ko7ncOy1ZXRKKpr1HKBLpA_2ZudL7lfouVno.iwvWYxtkR3fpA7oRNQ5r39.xYCLop46JXIDCEgT5kGEDlgA00UdF9EQRixvpfnURt.l0k5.AvrigYzWAD6OP0XjJdUBAKA97HeLwk8O.P9pKK5IzCWwyLFoJPIzJzv4u.iNOPc8vizrFhbHHX3UxhHwajyU_goeg4G8KUhsy94wwl1c7pZIUaysbOcAZ4sN8JIbTaJTgFzXjOt2ttY1Xe89T7ZfC0cBW5fNlh_.FaX9T6bSEtO_xNA5WnV4LfJe5oaID.9WRWzdowpOYGaiXswN9ijrzVRuV_RlgnQYoRxte_PzTuw2K6W5C2SM4ZkEk278DBCVK.PqeX.dnhNXd1X3ATxuHLYIEwxUR4k7hDXI46qwuOMk3WzabrdMVVFMym4aAmYQfm9A04zYkTh2x06v0Y1Y0zuNhjwfBMOUguZSL2eQQcm4DS.vRvHu.SL_X8EmHoxicmOrmc.KVP05kDTHkuKBgd.ogS3s_hFsYZVz1p4RxE0W9VBGeryDZSYSpadkn4Aiz221kZvv9kBRP0QJ_jbmEOXQYApnAohaQaw7uTNWBk6qQWWs2X6HXxdL26k807soa3kWzsG_GlbkeZOwLhPRfmSV0Fsgaok9uUAS7wbIVoPqi1qoryr1TyW9p7jkYt_I87EjmhQAAe4XVLOKS8RpstNqe6nwXmwbns1t.A3OFpek0TagxxfjimhiOBb6KdQu8LsiioQZBw.0_zScDbXsE.CCP8vx.wcVwIFPnJgqD7R2tnicne4aqskQubykfhpWNaU6Z2nZ4vv7rcZ7XW_Niaawqu2b3CaJewBNrMOQQ9ZSmx_ATiY7NYILd12R3DW0.tO78W8O_cfHaXb6vW_EYNZY9YXfY80b0wZjZ0ybLj0ik.PITtVys3I83K7wUAslGKOZV37SohTUr9EtQ0oND6_msfEtYnaZyXNxhn.sVz7sGbbcnb8UlpuR0sgh8dloU3XrbMwAc00qx6ubpVeV0afZzjkQ4wkHh.t3FzZP8_f1TEfj2SIn8LO87iC4QzWbEstLi4.SXR.3Qy0O1lCVDEw4amUXSEQQd_wSOQKeMWdzEKEbZ7TEIsSSng0i1nY5w6AwpMF2IQ.oTbscijVeKXji996RZI1kQ1rcuvVFCMN4tukTYz1rs3AkrcF27QOlynl.cyG6GlXxqJNgNfW83OHbiCllENURxI8Rf4fNqUQCFVu9y9jjZsvgGpSjS9dU2UPvKl5xDTaqaAjwvayZcF1a2zK9JRvhx6XfaOKzR4Uq_kjj9g8shVdseCW6mOKsFN_oWGmGhHcd.YZeDVR3tTYqzswnaLW2Gz_qv1WMZCPkqw3LTXIp8bhBu_zCKdV_gynS_ifscfR6utGeq6PPYMjRGJ",mdrd: "n6QpgjcRiNvA5alqs.7dvfpS2szh5CdHmmZG_f.wpCE-1739379169-1.2.1.1-xI8FRdaevgk_gCFQ4.VRKN_SYsAwMjKaUm7gN7HgLjW7SAUfE._OYQxAK7Lmffhws72gXnRkoFzn5W_4x6oqeSb0fhSyObTy3Ni5BpedsauTxDkcSD2Sq9N9Nfr0qD2_Po8OZQVvifCxiSpPYDE6k2AuMOLYaIpectAzN_jJ.6dkCeIpbH7Eh1t_KlA_pknzvoAPli79Css41jw0OI9_eN1DNWJt8aTopMjk.FV9_z1cL0yNMPbBMTV6mZe3oqZDUXVmSsWh9m6eKC89P_rDWzaJW4vsIost2QRJaMffSpEUV3aEdsT0jRQ3PKpDjVSZHd8zX_2g8k45fV_ECdgIxVRtdCxYe3PS55llPtf3txSNndfHSTBtHvtAFbFbZuP0Vn8w4SOsICmGMYw1sSzNdfD.o4xESNxi5L.vdAXbTvkAbI7.OMsW7Wp6sVBzpQYPtwneZKXNxYW8D0hTTyBn2RXPDC9tlMKbkDhVq5ObXfKzO_q7rZyriCbeKMyYe6h0RdzlGLI4ASLQenSf8AlBbv7WBdjLK82.WwKB.rYNcIGvuymDcVAlkPW4yYs_l63J5HrWKuIr53_5b9qeHhYaUeaNpJfoDSOqUctQ1LmSB9TzC0dlFK4Xd7IkTSGGvPR8Gem4UL6ZfoCKpM2DW_tYC1VJkwxdEK21gNEJ5097N6tKjXFpWQbMsBz0oz5FAqYUrZPZ4tSXY3wRaXAGoYuYKuL7CaqKsaIMex6tgyGuyLwmKXNbqe21BwroR_9UmaV7fbpwFtPpWZDIEi443lIrlx.UaKytCtCaWMk0NfSFWNunn2i6O9bs4EcLXiShPfdJG1F6TL3ny2l5nKEhzcZarruVJTC_PvLK301ltd9942B9gjWIKfb1NwadPcwgFvVTKTs625o_w8Z73CQLep66LPh14xBNuUPLsbPb5Q9clD.QZ1d7GV2FY8ZJOU5.E0zCMH9Rj4MNYX_Px7F2JKz0cDdG7kvy7xwDS7pSFKIL1YGj2HXydm5ISjmi5Qi55IcSaEjEqI6CaLA5JQfZPiZ4_khxZyxx8vlwXk_pcuCNSBQoGMR2uM8y8ne70UC6a3OzAe1kzOKhWWhKFsB3yXsWo6ZddBf2cq.eskxvj6NxjTUHF5DQ335c49SmSGW2MELfrbIE4OPmtVO8eioViniv848bzidZ_K8lpztqHUcJ79LmlwbM61jRNYwGL99N5Ia.MQdP6V.5F.CWTVriIaM8tHoDvHIoaF7JKhtVtIthM40Fn9DAL4.dRkiPWdg.Hv0CXqvhfiyJ_.7fFzxS3.715_.mB4IV4ddDvnT8tUBklBmaABlZCcr1Jh9mC9flCn7MF9pprv1Azu.RR1qeFk4AQ1eSHLfepxhlOqWuxvgiE8atg0wUo5O9_q_eDOd2ZaLDbZ7u1bZxcrE4Vbzlny0nibR3m4vYiJ9IUFddd18in2eLeBBRjeyEivGt0OKAwskDWdhH3BmwPm2xn4m5DRb4zHaQ8UpoiIPE9Pw0j.2kjWW0.YF5zQKSdA3Qwf2ZsKo.0Ioiv7r_hVKowmdw85QDldwPclRoPjNVlPXKiOCLg7LhErWTRYG.1rXCqtFQRwYcThDxfeD2_BERUiwP919j2qoA3klO3U4EX8XRqd5vKznxU5z15ieGy_DWnEqjNgjKGOqJj2ss6hsjfGqi1jjXaRJQ8K81gH1GudiBiyMQlT3voNfZ26RVvAEZnpJ7uFb5piHA.Nqj1NDlSQvxJpKH60rHEr.pBAgTYc.j1sSJaaS43yyiwqdCkzLXPhNS.p76ErBNj.wx2TiEkVGD1yuIKQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=910e17643aed18f2';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\/5490728316?__cf_chl_rt_tk=DPlXQGqyBxO08IKQ8BC5sPil4pJncSTgmz5J0UuHmkw-1739379169-1.0.1.1-NG0ewE6X9E0mQEVmUaAjpc.IKhcMAvhHAawSgD9v0kg" + 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