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-354110733797.mit-edu.top",cType: 'managed',cRay: '91105581eda30790',cH: 'LqKt7uo0AOYlmC0dsoigCtxuSZzgIHmB_41yQXQN4EI-1739402685-1.2.1.1-VCd3WcGqZg7VAxQBYnpB.FvbrWq22sUm4d46U3TBM6_xllSLq5guBrCXU7h0E7cv',cUPMDTk: "\/post\/1297653840?__cf_chl_tk=thiuEpbtCEtMoU.IrmoTuA_oCdXCgz04BliAnmVEerc-1739402685-1.0.1.1-sZcf42RIEPBhCiGIqiUFgQpLwN4DjPVQCjwqSIRERw4",cFPWv: 'b',cITimeS: '1739402685',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1297653840?__cf_chl_f_tk=thiuEpbtCEtMoU.IrmoTuA_oCdXCgz04BliAnmVEerc-1739402685-1.0.1.1-sZcf42RIEPBhCiGIqiUFgQpLwN4DjPVQCjwqSIRERw4",md: "BcG_KsiYv.jwGE6p3PyJOdXUFwdC6z9UpeT_bG7yMfo-1739402685-1.2.1.1-KXuQ1mDxDKEE9iwNrmjnA7.xGBV5P7aoo8I73zPoAo6KVp8v3Z5U0s5WfRni63CtPUdj_Fa1YMPuWrgDH3sQePgbZAqcrEFULGHivseChkpLiqJB6P0dG9svzZbq7KgMjqxYB0wzccEpe_asBIXiz5jG.aygHn22KQ_J28Dv27GE4bWfP6hj9oTdl_deV5Np477ElRZGs0.QGeBz3y0bnA172Xt21Nh.O.GIpH_tvlsruGxasLWP1AHr6rrd2VWYBbwOJpbtO1efLqPQArL3k.rhOhI13JPtLi6rZ7lWWnmOJo.A65e1tWO7JjZlMBBUhgN9l3y4PCVxh3vDywQsdqtJPNsWVm6iwapYaSBVibEqmqe4eQfCUeG7DZY2hpNVorHOsDuAT3WZLP.mIT12kkBAs6915PAaJ.ZFP9qlR.oQ8WaprKVm98oDyLeEgR4ZT8DzfoMbDHvJnykRcL.8oakce7QMypbCsIsvtlYQnpiV5HC3zQwsgr4eVvj1UlTM3RWfr.MBspcwVaKilxXzMSHFSEd6ilHN_7vPXOJvPlVlBxZkqDOwdrXReYeicUk6tx2QFlBvUHpRZTW585pkryGHUJQYAiWTZXJPLqmInB3260y0VvxAL_IZFVR9srMHO.vo9YtC.AmhV3MVdLqEEyBK7zAZrA9uR7DbBP3wv8j7PuezKvKPK9gPXnPufG16RrxPi65rNSTKraD0Eqy0AKazza7I0.aXigA5ExC.BFPUpR1B9DLpD1pNCVPIOB5vvZmGM31H2mgaWEM6e3.e7bpMZiGgYNHAD3UTTFcvEU1GefvAqiPP._6i2ZvSZbXXm2es4r6ClBBnYuKGYRxWKjKyWFUXDGNrDo3px.ghjKMrohC3C0EUnHDzWboVWuN_BM9pZNKyWkbgbNHeppPpDaCHe_OiZHnEDkFXMkiwzeHWOC36Cj3kkrn4aFdsQp1rQWF2PXnKhRM92LbiQLd5sFU1FBYOf4a78alKBMDaQ.ZIq4ztoxW6tGNy_o13vqQAf99hRB8Vr21Jc5.REKgy6IbuZS1WgS3OtSQhXXJWoudE6fUXjJHPkovZZOHhSnJ_inInYQvW80GogbcElCSYfMq51BiDecw2IJteZxBJju08dpvhqzEM.N.CBmaoHrokdyZJWr2MZoN5waB9eM0IAY.dwchf0XhjySKIWEMRXQWVAzoVJryCQODNjvWf1q4dqUw3eWD6U7yreW9raxXZb3Fqt1pvtuX2A4uj4X_zlsCtjeNx5X2L5DmKsTKOXFK3NGfFM4fZlGQRzx8v_P5wFKL9zcPCvc5zI6z7BunF8mwRRCVJ8iv7WybLKGBZ_QisObL.FI3DmjJu6J_c5AgSjALX4Cbq2k2GwsAnvTN9omqboOx5IRPhosNhQwbVPwv5H3Pv6bpVSggWwa4Q9Rlez1cROI9sUSJSpCSSc8AaQdn_a4LGH0C.Qrb2T4C4t1nPAXoU4GAu8RPOtQpgQ9NzzQVZ892BCbl1h3vmLE_4Fa4nRfF6N.adITAATsTMLvKiQnDsa1NZ.N8Q.Y79uOPiPweRQb5W7Slcy6cfaoTSZN9KuqxvdTcjbKEt8vQgBNHTqbuc9JbRGvX3emtSR59bfhYJB32Irbt6laYhUcFkOH7wgl6JknenFVw.9uJudRgH_asWYZ3UM1rQFlNgpyJZ_JSJHuAWT70lOm3_xAeuY3DhOpdLp2kJf1QGnlgNpGPI4YNW2hr985wUil8RL5Vt1bSzeylUvO3S5r8gHsutCrar1zmN.DpAQjwNDpybg2r6C3BFByaHuQ4dBMkSKPy5DqonmGuaKw9rkFrAkeID2jGnyqlsYsYHjJMxXEDsog1zmB.2pOBXIyI0PV8KIlPJEx_sv30ouvV6ca98zB_AUQQQGfEf_P1d5Co1ZVVwq_bpoIsrhujSV.J.z5bXqNFsOSQnM8bGxCBzzXR2bb4Pu0sMs4.a72AUuq1yfa9aAfTEqC_2eT.lpN1BS8tgyk5CYowZv_gKfSYRMopPSWDGH0Osn0lfMnoojvFSf2PaoIbFRxPWLn1PIwTdJKcgsCvSJ7j2Mu7wVKdRx6S4ysr_UJvMy9ygkKBbzogn9vgAEDqvbFw_mr8GIz4bPgBsjcJLlQ_RnBsc6IYL6fZvSE6PIUQgTHsyjB2JAC_8Nt8pLUTq_l1yKbcvYP5TVMJDXkvSXO5rOz2U_1S2c3HOxuDrjAYRo6QerFe7c.w141C1UzHu",mdrd: "CzfYwc779GMRDiAYgTqeTR.ey.dhR5wF5j2jZAPlF3A-1739402685-1.2.1.1-HEeB9.I8XHFNiRDtrFXyDm7y.wgKoivnrHSmDLcGuBmaRza7Lj6Z7EFmxUKX5MQkAHk_vbclQ.0ak8qho.s7QpAHaBjRZC09CJre1uIIWG.97LLg76Pyr.HJRxxgIdNw8fFVjTczRVK7HVjJCzf_XEdNWw7vjEI6cGEMAket4fEB8ZD3GyEwZtr7iKmr9TSKyfRyEtAnVLHjNnwpcHb8gxqpjDA2pL5WTIctuUxTMYjq9v8lxr0qZ0qC7f8opCeXTR_euE1FM3KR.872lEB5hZMLamGbbbyrfbTH891TJrFwgdxLV77rvxg6G2Jm0b8SQMYd2EeXhHDC088J.fDKkq0BaiDONrfvtUjRe2WRH72uWYPfsDSCkC6yFLejXgos5tOZieI2r6bnjaKECUAdHnQta6X_DFT0j_st5jYAPfBkYE_5LvyvBqrfJs6FdymXjFygQycOtOI0mt2aKvky4V2jyXBO2Zej02i9t0sgG9zsStMEaiTlUaPdc0ktsIYiAAc9Y.pNK7iiNICqu1R.Gx5qJo0WwVs6D8tGr1lv5z7rxt5oAyzQd5bZlgwLkYJDfmx2_JZcVegXXxrq3ReryJBDUF3Z7Ug4hY5SLQoUYWJhfGTiay06M4Kx8iWP8Wi4iCGbMf_UnPnjui0d4FDjiNUGYkErx4VxH13R0HaImfaKVISh3ZPh9pufa.13RDgDEN9.TrYDsDEHWueX6KvIVKenXOx2JGX5Ja6uBC4Q3mlEfwkcUML4dnOnX9cfPS.xdWP0GBll3aHYTJymF8t1TX5RGN2pqYsLNhekPtmByG4SpgMIVz2Xq.vU656IJj2QDR1esjlhzZQTkaUEqFDg6kZW0U_DPuisTH9_r7BSuO.qcelxM0FycE4pKr_.TRx.V6n_QUM8hK0tAk3b7iNHfMoKYM9bVoYJMZhQVFBMrM2_YyeCpQ6abBfioKP48qA9EMyPo4IY6sVCrfVMExw9ig9T8ouuDJJMbfe1hdKx3BAXWRaDIqIFpX9ynJmcvX9a1xJw6t6vjicKAlZI6a8A2WwXMMaDYQZbq0O76NqeiRC_RnnioEncHDYYzQQLWtnkCXMlHvFiHtYqkZFoAorzhzFTS2GcLUguNXQ0N9ogz01X.b8oaJ.ZgAs_CsbzMdpuDxVm3YVtQR5wriyKk8kNgbB0wlkqbdBfgLr5uCWKOdJ.tTymYzM96KBo52pBhUn4pxYsyYInFsYu7qoaUrgyjATX55krnG6Bq9jkO8G9FLjGrmQmYe3jdBRI1OnIcvwdqqJo9NKVkveFyhQH28o8L18iuusN283QK2Xaoe.oOO1VinO8Ot.ZUOsOtLDSImn8Splx2Qr9D0jvuG9cMJUvrH89rIpusKJO7QvdvkZZi5lEstYmXTo9RxHUceKuHfsh7UfUsR5TNx_dWWbBMdWXJ2yJ2be0dDlOEM_S_4NrVqbFB0SCIT.dhinfm1R_BGofiBrGuvWs6IU7Iv5H.rPrm3K6gSC3zsgzGF6PRCGz3a5UW88Qg1i_hIqX4BEGdEO5YDofqvvbluU9OAjleoY5LpOZro3ja0la7Q2lIhfqH43_3C8Og9Qi7sE1BlKHmnWcI0B3nBccrAF1KM2egsJGTJ3YIfXZII5rcmq0Qhv7yKEQedHZFijOFBTQteu1di1ASkvbImOP8UaI4k53hn8esrjnX._wQIzGWzxbU1HoUZWgsmQZ.Da7Kf0IyuLUnjKqwpBOiwBFWoXEm4wJrVlriWC5JCyV.2jYwEblkuwLi1Bo9sxDXzW2823xOTojk6Onp1lK3LNpwYJc6_BxBN7P9w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91105581eda30790';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\/1297653840?__cf_chl_rt_tk=thiuEpbtCEtMoU.IrmoTuA_oCdXCgz04BliAnmVEerc-1739402685-1.0.1.1-sZcf42RIEPBhCiGIqiUFgQpLwN4DjPVQCjwqSIRERw4" + 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