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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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-907403851511.mit-edu.top",cType: 'managed',cRay: '91105a18dc4ed69b',cH: 'GAN9ZsOEl9YcFUbvh3W_v2p3ULagxeMH_dIXg9qCHm4-1739402873-1.2.1.1-XXP05hxhWhTANeeb18DiWErXyjUI_aLtPNaoyMvsz2meqqBFrnRw.xozKEn21Eo.',cUPMDTk: "\/post\/4638109725?__cf_chl_tk=_Ys5jqkDLnHajWdxe0FQuH9R42mxm28bHOPbwGYuzko-1739402873-1.0.1.1-zpClPu8FHL4Eho.Y7eCsA_qJXDNNWIy6_BMeSvzYPu0",cFPWv: 'b',cITimeS: '1739402873',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/4638109725?__cf_chl_f_tk=_Ys5jqkDLnHajWdxe0FQuH9R42mxm28bHOPbwGYuzko-1739402873-1.0.1.1-zpClPu8FHL4Eho.Y7eCsA_qJXDNNWIy6_BMeSvzYPu0",md: "1sQgVMnS.wZWmmL1ttjemEiSxWeXB_njvlamHUXbtes-1739402873-1.2.1.1-ysdqln.V0tarF6cVJzHiFwBFS2A30omGHMDpXZeFAdYyPwhySi_kY5MjZlWyZaRIDyKXPgbR2FRTWRiGjOTHbnD4oGWBU9Pv9cPDE15k5vewVtMScRIkjcLxfIFNFW3eI2IQIe62HwlFbKgaBZaRD6hAeWgQ9WiMILz0mtOi1aXZHd73ajJXaYH9xYzctGbupWjvYdiNhWnJgD0Vy8iBX3b695Jejokhptdj0VmUX5N5lA9zFG4b6GHpMrAzJP5DZtIl5Zbplu9VgxpLZTNr7aHEyecrA2m0ir6M0AwNxJOKeAaVSPVpYd5bM4SOEz0LDBVUtGaQ1rkXw0PfUEiHoh2hqX5BMHju.wULTux_ehRpBygSDpAPSka4jY7tY5MhlxFnsIadEo9T6klYaDnLuzSkQcO_ovaqK8ACNHZQkKrkUJ43YYIRw8pPGs8_AmThZzv3bib_yZTdOkiiO0L0XHsCwXbcS.ZLz0dQZ3HBgibJCb067UgNWjNP1G_ZYqadjHzqw6KCm1CR9hosx3CXTHwvJ1WQPbi6zACq92IXqb7NXJBjqBWw_ytfdhdXk4CTgQ3dKWmc9fcHrpSPqdqvf9x.rrD6MaxvvBMu9pHFMJZKM93VFOvIj7Aegw5.LyEaqlYjDHJwERb8Qp5_TLetlsyzWPB4bgvMxRRfafv5Omjm8qvd8p.7dB9x7FQIzYXwYxMyMHADhX4xApPaZkjBq72sc8obSO1VoW_uaeSZZcaQ.1dL4bgbCpR.B7zrBQN76YTJy1rYNEM515T35i2naaFLksJqHXPJ5vDLavPUf0t8_vt6b8Rrk.BaYrASAbhnunyzo26UuwHcBtUEDKd0aRd9s0UyON95PGI36tudf0KEtv_EJqEbDIBpXQD1szqVhdgonFqOMDuHoMjqrKtDHlF3bXOzszOk2xYxTOqaLFwHG0Dmb__ZExXfc12ScXrMMg2yB9A8h1tC6zas18P8t0AhqeZeItyih8JabdY72kiypVU8OZq7s6wobAMvwu09t0S8ZR84V3WOkv6VuU8_Zfqwo1FqttujmMN4TvFCdW4cYoUYJoW1HuuTthtDZphq384eHCphS995NQKJkmv1U_FWWaAbVXB7n8mToPvp0BRqhm2fE3.UK.XKdxTqFdiwzUTK_F7kN4WPtoVfelafZmFET4AgwmeeWz4Tj0hsf7bDFi_5na5jX4Rq7FXihUYxnI7Xtgm.xqECBpvgyYdCQZyHJBzrujeL0Qe6hHH4cXedAhQznwjcf7AdJ0ftn9ZUpIqzxdiELufY9iXL4nG2GTzl7B.0xhcSzuTr8eMpNoKG4T7LktL1BTVJ8elOc0aZ1v8MGdYcaUXjYgzr9RH_WIqQrrif7lhbBbUU4cxzoRvuGSRuHf4aPtpjZYGKKGsndRGnXfaEJWuRIk1TbVvVT0rWxogJK9vuLjWpiGrA1xa_jDecVhSpxpyhYg3RF1ph_zrrZUf1S5g7kSZ7C0rf0ePwZTz2EdXh7z45lg1eks5mRUdKacG18RqodonNDtAyHUt5dQJnv5YfTV..64DLj7DjLbQk76zc7tMNNHlrDRCxda7JRAnAHdZ1MzTukyv7xiCzaz_B87a6VkiG4jNSNbuNm4PXTodxkXKU34Na.lzlOR3T5yFEFJ5lhjYhk_0LPBt9OdyL7mJuMkuSRC.bBrKpTHJ9gsrqVCVgddYVeB9TeaNwPqS.aI7P7PeYzWGZJSLmm1N.zzrvF1vFb2EBAEKtMuXdULw0h7bm_tIAJZyyEB1giQHTcaNuMNi7mBYB1xXNpRh6l26hunTccH9WdsPGIzC9Xre2PvKqiTQz2wyMpEHVrn7WJPDDU7kct1N.sAfVvrJ0jAN9A3wOKWc3yzrcs7reqxlBz_.0KHb2qUf7ErzATldM1LpDhDvxxSHvzmOVD0Z4COmd82fpI3jQGCF0faiOApgot0Ujmwm68JBgAhNMhx5GzLD3091tZoph.c1OWwo0bTjCl1cXEs.8g5VlgFzUyNav.sMZwPHqBb9V.eGgjXXsbs.bVovQXUAcP2z7JSjmKHzQkpyuqKvWl8ua3CGHYm2.cICJ8MlvzNFdcst2VB3oW6UnojWN19gxxi1itlrMw_f02N2GZ6TVVN4vr.t0g5I1XGlL34ifAUXt8OPde1Eiu398DRrP4DTNvQhz_0AWTHLyJAHziimHGrTFuhEI4ZQG2tlwZFsCHUx.T95aMsartmm9fAR5fkAH",mdrd: "7PqbOU9U5fqRrA7gSeKl1esQvqyo5U_t2ThE5CCajeQ-1739402873-1.2.1.1-Ik6SlMh4PeYFsLuXoEWndxdyZQYtrVEuSkXox3_4CNQL6jxSzErP2Bp6CmoUzStiFVWxJZ69eqGSYqjTaMnsC6J4qo7uPHQgtjuqpDGfp8lXjeovkHgD30QdU0M62r7mS5NJduiSNGXzQ5VND.tQCQn5P2xf4jtcKrqqhTjbKyyHvWzNYhnYQDxUoZRX9L3Kawyvx6.ZUD475_hdrfRQbdgmnTB1S8BtC.G6iJu22ofKqW4qPbxKsjUGZaksqo__anbTyU8pGQ3IKN5oYNQAMlyUtMvsCvLILYqCFHehp7TrCGH0FF4E6RP_Kmii..dAgvYDmCP5kW_NGqJSJ3i4m2TUikZOOddekrXqgvuMPrkz_RkvSvrnKU9ty1mUTO6tzzPKrgu4eVyY.4u0KeAvKXbQUGvIm04z2A9B7ZcciZIxw32_RKLjhd.vLnBCYVWBOfKEos7GW_iZHdgudWDzi2VoLjQWmG03GYyp2Kf67FXHvkc7U9ShJhxX0lIKIIYDB0GQI6GHirX8vJmnl5E9b_O5tuSv4oabblvAiE.iq9VJjJb0ZDH0MccK5p5q5ukHbrbb5vPHaqiG.rNVtnf54GI9drXcflRnusFIp.Ck6oT9EipKMhiAZ8hnsPf39jtOuFDUFxTRE.ZuwLAMaVMO.xyAO9AOOB8qyUh6KWkmkio_VBec.jpmW43WvA8wA3iLRdD0gcXek9zJbZ0SET2suA58EDsUKuWx9agePnlsHsV71ifqtpZDkvzgwOJbOQBKsH90Kv9WEhzpVaFIggQ4ZeXgy.bS8BTB0S1qVi3.wTOS.Nl9BwV_I1H1zzETUOKtRazDTZeTb2gmORlJh_09GtCgYhEPrNAoiSFn1jqGkTBgrtAhrFIxKNUMDRfobMVILvzWUWwkWCGdS0vMLLgA5KVM4h1RlVk5vcmCCjw5PTgd3OmSbYStHK1M0VMcLzXKHvYNIpjUXQWgzkVtUrijopOogK4T2.WlUrCghH3dFIBwIKr81BFoYXyYAv9obFuTJizyn3kYKjyMY8bKyiJAmXRVlVa7Yr1QwvKurpKQbd7848tbvMuc3Kyp8Hd.WP_wComysgx_y1NnEhOaAOYmWOc6NnZ8CvHiGAT_y8f1XdcnezISN8GTS0vaZqKdrcop.7Ly0k0lFADSbafynZ93EtwkCknarMmls2TORTpsHAcCG1TuEo9dGRSWAWKPBymt5nIeaNu5HEcdtojh353H2oz0vxKhtxt1mP.9bemdRdZfm5WznF5qEQOeRCvesdcOyJYdvETQIhoqDxCVwhSlzdje.h921LfeSjqIz702FJNyYp.ciPuTrzzKr_MppLaNVN_5G77XhaojpvuPbmnZBQ4WRK1a7i1_URG0U2WWQaWisdUsT3CAgNoWClw2XKBE2zEUm1Mq8_hx_1M1Jhp7sKmRUYElm70jBniTnTIyvKeLulqsXHqGQI2ssAda.HpInLmV3w45sfbJR0neKHwk5qbZNhq1hk24Rtg.blki0w0VjcYOXLDdeGzgxfAWba9_mXShyjq_VFIFl5trP4zEHuWFmAapHRVVwCajT50wreAHrmrjeNkq.RHjuyQ9901AdUilSz2q8PZUbsquZmHRimM1e5w6lno92SUKU3c6FYxf9Xy8Cjm4NibpsFRRwc4FdHhdqeC_CWSQbIApJ.wb2QTxh.l1voe5CZ1_OXwNYffa9sh4C_l1ry29rFDIUES.6MY5nhVTs299dNDozTY4QKmI4kZZeVjo7MWccdiec3JorAHBkrq_ybmaROU8b820E68GJq5O4oqhCZ3VlwxuMQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91105a18dc4ed69b';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\/4638109725?__cf_chl_rt_tk=_Ys5jqkDLnHajWdxe0FQuH9R42mxm28bHOPbwGYuzko-1739402873-1.0.1.1-zpClPu8FHL4Eho.Y7eCsA_qJXDNNWIy6_BMeSvzYPu0" + 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
