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-aff4ipgl4.mit-edu.top",cType: 'managed',cRay: '90f36e740e573943',cH: 'IcyBUiZHMrhtAjTaf6lzBcuczU_OQ_vYJ5D.Kdc68ag-1739099620-1.2.1.1-9gOMg71Hgv0k9S6toa84Rd9aBrlGP5fEM8kvd8_KGHiS2VH5lwCKSbBGDKhb_L1f',cUPMDTk: "\/post\/0683429571?__cf_chl_tk=n.ZMyIPaqqUZOmRKNTdNGFZHmADN.PJtsZ1OsONTTM8-1739099620-1.0.1.1-rAJ4Q21GQ1beWER.FCGmkbpcarWt09s6oKdPVnl2xQQ",cFPWv: 'g',cITimeS: '1739099620',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0683429571?__cf_chl_f_tk=n.ZMyIPaqqUZOmRKNTdNGFZHmADN.PJtsZ1OsONTTM8-1739099620-1.0.1.1-rAJ4Q21GQ1beWER.FCGmkbpcarWt09s6oKdPVnl2xQQ",md: "64ARyqzNyVjzmC4UIAfuBTW__pOKLYLlnuVf.By5xLo-1739099620-1.2.1.1-T1jUxk.r6mGymrTeVZaJm1lmimiiQht.tg02MevD7AlxQv7JDjT0lDbODZVs9dwcVaXl8MjrnA8PpofNiBSqnBO_oMxpJbvsXJ.F_knUwrfLoai8_zSfOGiT8rBvEGxqQ7XLJ881ge4bM6EFilYiVVeN5flcju4xL4qMzuJUZS6kQMIU.y84F0TSOIJZ_UkmyjtQtsUaVBRVihumCG9icpz5iBfz3MgeBzG4tFJDEX_V_y4AzayhEghP8vUFvDXiv1EUD3V2eEawHzbl__i.11Yj_nZHxjHsFOXqCONBkJuhKeOyW.u983Rwn_05r83HqcBgs1RoLDxB2G6NhStl7ajJOpvifj0yFJ9tzHkxeB4I9NkB92f_qW0Wz6d5LmmPlvqHlQYJ.k7bQ56LWbuGYjaQdOGN7vQ4QsoUJcS1vlhZPW1xScy27rL6eQq5W2N8lhY5j7F7wRJen_Wn9GSSpS3HWrzr46KsM94z.s3EJT1faUVohl61fYF0oyxWORQGYGQJYQMNZLlzCwLSFGwV5B4w1I96_RW5PZ9I3pKFTPhwI2BIrz8Q0MHr7xHtBKjTEWlGx2pQrd2T7eyUM5borec..rkDAfA3LvD5IMeHD7gA4gcIiZXZm_wyuacrQbhP8jIx7jqURFs_2JtFek7gnDiAlaakWGufwC86MvBPDHyKwETSlM8SawR3Qrl2t4VZdg7PGLMsBxo.mJYWNg4YBZim7dv44cL7Sfz4.JA0.PjU11v9iyu212VeNBpfcc9IZki2HpfL8NRQD90rV7rHx9EkN4eFAOc.fC4HhivH61EUB9lgiLb6fDn30Q5EuBwiEldSp6G7l_MHKdRkSVKfzkD9SmV20lpi9aX_ijmN9Y8Npy8zwszomw8XJKMUy5dyMLPiqaxREr0dejjuYmCWyh21.ek3QSK1TnWCC7Iy3POU59Sk_JpKxp.4KFtAmPKdUOlgQe9PBWy6MsZIKZE_of1CRl0Khe2LJVFBXk5bACvrQm.FXLuEaICJtGC8M4f7_ylCHMPu3jJCYuY1fXWKPCdJGNI2HfEn8voRVkZo4jULlvmDC.xZKb2F6L.kvd48YyDxbu2TKl6GsNsx29SjN0GytrB6a6hlT56ROZwnOl_YlN_OeyqENVoxFo7SffgO7FQYhIYuTcXxEldZxj.ZNAs31bqPtfVqG2D7s_BaQ2GC5ouGM39lmhrs6l4z0QuDgE3XT0HfrF3VYkFXJeJQbr3w9iS02P7gJXmYO3Rb_Drn3lpKbOJb3YLYasFh2CFvW4iN5pxoASVij3rDzH.m64SJDuQNby.FaNhexNJakw0gXhwfN5UEo0eowrqhPvTtgSDIu0JdpLjqoFCcLrErjb8tQu9btUEILLNv0ivNGLecVC1jVRNhzfB62He.kUcgAp3ZThhaOWT74FN7EzE5essZngUecNi9BkFqxl9EzDrKSSIsaP5DGPebH9MXgS8HIfYg8E.MYFonh9mgW29HwzsneybGNWnbZedJKEocDxwbPhvmbEmyFeo_7bxRBylm1HJLViDwxdMHLXO1AXJAXTl1yVsqwd.cEiZoS2kKd5ZAGcETkSAwxsCVOzFoe_8EoJFl4FOv1H9Ck70EiZ2OOuaPZBpkUKppRcZ4nvl_NKTs7aCpl.fZiuGxIjz_9DN0wSA8sEzW1RVE3jwu1G.dopN32NqSmNrXa.K5DK34AmNWlL6qt6GN8Hgw._sWJPP8IQC.4NbZvhbhP9DQX4mJl.FoRtKV0qTM_hiRo8NYmrQD5tXKpoWHq7.iJ.hnncW3LIOT0Dl4dlFFh6YWUs2E.LwI6eBwtiH2WIgIlOBnc9kWN5tlWiKDefi7NlaZpkIwnJ2a2saS29p3xt8Jg1YwLfT78viB5kdb_I48fwBSdyrZswP4veFBFlXQDpo4_cwqSR58AtXK1VDimhxdjObEXKKb5G1zOBTnf7IKboiod9_D5n1gRL0KT05UtDnp8_cByX9TGMKT_V42RhtGjfG.22aHumpVkJyEcR7VlHpunMxrR9NQ8YkFEd6jHYLUZwPDpRVv8mUoLTQR6L4p2H8_wR84d3C990CAIp1rISnZ5S58A_NRSJjR8FLiAbK59bK6k24a4nby60uWYmeffT2xwEc8y0aM49ZCTOCCeB_a.sjVnGKVNPTPe9nenMD_c6ACkzD8IsL50Nn9vobFWYAtchQmeJencHrRyLT.omtHm8PQENlw9F076OCv8h5.oROh",mdrd: "NQ3293SVr9g3f._P0dyERAt5NCpva7N.gudIsftBI1U-1739099620-1.2.1.1-PkOk6MEInNum36vfS2Sy.82Le39grBtM9GN0iQLkqeAtNfQBccgZbhVCioPxwVMtwt2xALoKprhbf89vCDccZgueahD1n5t.s6eW.stcIoALNqoRrv4f8bKX3TMzIWj05NlU5jgPRVtIiMXAxRruBYbAl2aMK7SUikF7o1DTt0q.DWFF7CL.6UvjlfD.3GutBr5R.k.j8vcUm9HZywt.fRFpbNC2fJ.8raIE_qwytXww.iIl1hmXFRkdYCWALxPY9WnLbUNTv5AZs1ocmhI4J5NfV8S8zYTohJ8zrtnQEMNcbq5JOyg_ePQaem_IqHtlNC7g9wMXFpMrdBkCYVhXQEdetkjSTF1CIbkF0SY2MMb5Jopi8UWHOIZwXfkihO0fetMN85OiMsf39elgV4qvjzFgyDxFpFb9wZvFNpZvr_pNuE96oAm7s6SIcjqO7eAw8Oj7.Gt5fFAMofRDPjUzKIasu8dXoT5D5VOriVvzMAXIeY2JtSwbFBKyytJOnAzUUvozUE.NldakSTV7H1uxCuOjeF6VTDmA1nxcR28bwfikV.QM_3ur166dRWIcL8bhyPPc32V5qX1hQOBIHd6ta1mbhB1m5xCvlnk7ure3.cNwvf8y6DozDvL_I_Th6Oa_Qqe5u8Rt1JoITsfhGRtV.3IEl8kP3uFJ8Xs0dsq3eHJ5InlaUts2HsB0yA622BFjU4Dt6hiqcPrM80O4Bo07SSN_5Su39gwyr4kAqs8TT8O06xxraLic0SnQO0v8FFF5WsEpGr56KaCKUYmxkJ7mxXLRHI20Nv.KIBcDVd0DOhfv3jd1HES_8LEPto.FUjaflFOnuumrtENPFQBNWeHpnNsu01c3s_e_OO7O_zFZ5YE1dgz2Pwg0qQshus4ODM589JYDGfulCjcpss4GelXhhK76siRYqA3iHTHxtBdepGMKiVF5xtK8BRZQf5YnBCm_OG854RUcoFNuHgFjKosA2UPHKdM.5_0j2teKTP8JfIwVTdCuUNqD7to_OK6YsO4oBZwRky1Wmr3XOEfxoJYRJm3_XgPdSK1PnQhHsyA7ZGGvlvPPEgXFCBJ2jnDzzTi_VbTsIMGpauFUkVe9Za.yDS5t7X0.rAM0cHdXTvbFERGJGfeKwwRqOZf55zh5VD2aNpgpn80KfbPoOsrQQzPcAmUdYzSIADLzKdX22j7Zryi6zUPd6NOT_McwGMBaEr2pFw0tlswGb_jQACLDgc5ZqAUVmckEi1zlNa5zOV75qqwqw.UY6B8_PEfjJApouD9ymwvue3hz_3DAQoCtvPRz1Fi0t0ibE.nePeb1HbX05Zq8h6yyiAaXwGnVA1t0wHzb6Bp_MLB8i.KZ9zHJ6gqelWo5a6H28MEonlPt9HPY_By1MIDsXkabZT9ETpydG544tKVn3YsMWpe4.LNYTEYBi87fpAezUcZu7U4lt3nYeyyaepU8hRbhDO4cSyk5P7z59VMHo6R8hr6YNuTDmORkbFw.p1yVsml3Jpoa9XVgsTo0ZsNf8K7sBrzAFf1ZuFz_2rsIZ1gw3oUJcTS2kPOURkxpY5EUa6hz2Hl2Icin637Dxr10UpWTg3VUMA8cw_vo7rwXkTvsaDiGywY7YSkyJX7NAadJxsAw6q980AXkpl4R.tWAGoXn4KbQuIHMteuBekHbbNSPxPEzQdq4Z2P5czwqlBDMqpTLxNkTu2PcYwoQywqSDEc9tpXhj8JVtnZY7L0xhXOWhjxn1suZ46nUvtZ7zI.kpsL_vpHivkbA.h7r5UlR98c28dsQJWAQpnpnlHK.b48UN2tZH_miU5IxE87kdEgzy3R.h_E6FsOth7g"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f36e740e573943';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\/0683429571?__cf_chl_rt_tk=n.ZMyIPaqqUZOmRKNTdNGFZHmADN.PJtsZ1OsONTTM8-1739099620-1.0.1.1-rAJ4Q21GQ1beWER.FCGmkbpcarWt09s6oKdPVnl2xQQ" + 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