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-aff1jzcnq.mit-edu.top",cType: 'managed',cRay: '90f374849ab11743',cH: '.oXDc1nH85bAtsLorCzrWNjhArh2y2bOSmB8Px3rQqo-1739099868-1.2.1.1-34obf4A3wjL6eoedaCLncN9GvdyfniHM9xdihazGVD51JyQ1ilubw_lxOdUKa5In',cUPMDTk: "\/post\/1205638974?__cf_chl_tk=Ru0Yupla6U3TK70_.zq8njjQXUn8r7vhaZTj4vYpTT0-1739099868-1.0.1.1-CRbSKbSdpUafiGQ3W2SIoPvqucGmo0Y38M6USbQj0pc",cFPWv: 'g',cITimeS: '1739099868',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/1205638974?__cf_chl_f_tk=Ru0Yupla6U3TK70_.zq8njjQXUn8r7vhaZTj4vYpTT0-1739099868-1.0.1.1-CRbSKbSdpUafiGQ3W2SIoPvqucGmo0Y38M6USbQj0pc",md: "9eZBf1Mw7szLPFOJnwli55vNHFJ8GuNuNXbJPNVHvw0-1739099868-1.2.1.1-pdwxsleCHLJDJVeyYiZ1_ygCCnP6Hr11DPUrGlNCK07mDXdl7.JGS6PBtutKmWE3qV.29.6OTZG7_cQAFkNkiHO8xW1qKnFRVWNuRfJPXS8RcSuUVMc6t7yqtvboaldNWvCtyLcu.ENtNsCQEj9YEhc1ndoDDrHLhaSQa1fLrfUh8nGYNJ6Ib3nzXlIhfg29xsePNh9t4HflnClNfMMRyyiJzP1RXA0fzR3rV7e3g1Vyrl4pX3OFd1zI22mf1eTt_XHXgXoQ3rp7yNoNg6oaLIJnnWh6Kv4BlKDnTDVblADlUxBBqcyzpv0ep7rRlMOw8UokgJ9P3H6uMkEYnfKu9TT4pOVhiHoWXJLNCl3yh9gMwVBVGTFS9saDjnEG40APPY0rwLr6NYdB3L6_GefvtU5_4RH2Wgb1rYJrL6VXn4Tt2mpt_CG45UP0H_k785Elaj4T4Yx5jVhkB5vh8SALyQ5.59NU9mqkuU6MQUEoRogiJ3rA_MNOX1kfn5idt2V4YawgOgNwJuNcGzwfCNCsQaJNWDkrvb.GF.VP9GSd5rHPdBqn0ZZXsb5_SN_6UOXWcde6tZhC_T.wKjcltmjLdJhB96W54CynjeEndQ.4HlUURCs3Ml8S1BACwOWHCA1IwywzFCa5fNx.hBSmqUEK09bn7AwKP5Mo47IJWA_YSTWYO_ECjeCvstNfopDECQB8C9yTMxe_X5T5UUUd8kPb08Fm.w9MQg22lIa4bWy1ElK6u1Jpfusynl.NR2Wnsb.82ZqDTbIWD44R9eRetqM5wfP3hNlXOpNH9dYLrv4ztyFq3Jt0NsuvNx4oX56SUFIuS4ohPZ5bzet0RYqeTQ.bNsG1vSAiguMbgfddTlFRLbiRW_nv6tjgLHmQKUKt6BaqchcE.IxUeUwJOxffOdZzNP_l8SjhdYdWWtc5MTNyCA7IPYsQCvI6N6XeI6rXe9bTAhb.d2XBxj1FtNKGWvfzQA4uEl0Z3IMXvaJNyz7JekwpnxPQNGsQy5Ln460e9uuZvUCW44kS9TeHLWZ8nlckH1rg75UTNpCP5oiIDdPe8k.F0.EgH791o3Tk8cuJtjuSAfM00nV3u2bqmM3uTrm5MtLh_a.ZdtZvRfxAQmx6qsu.w9B6wxnhum7RRsWP1VIKlNsmx09zQh9wn8PKN0ZJqDONPmNHMvnou07thKQ8YoDyZdi_t0Q_obiiWXUkNAt_1LIIBxX9fF4o6PhiZRnHf4FpjEgXJSODnqx2S7x4KaNTx2NCHngGEGtxMk_2dYpqmwphayw3DLRp_67oxvxaUxS6mZSBITAqg.v9o5r_RFuP6Sx2KXuE6COCXGeVJqduTWnA.KfJlUcYRcKaO7CpaKAVPQ9Mqz5vp5SbbvMk5XKMeXkUH2SDgzBUwVmUr3I0_HH97uxoJLW51JY9VhmQnWBzWv0mxyb_F_TIadCqtQEm2.zYqjRHeu4z8_O0_1ZF_altfB8cywfCH7l9xgtD2TMkYh4zL67XfP.MsGwBmgBuRBqI9hhaLctG3HrGIwdNu9iXcAB4kI0UTuCH1kej.vPGlZa6JhDxXeZF8NczKMiQce4U_pQE_Wzk7svUXHZTIyHJdWW2Ky_feSaoGmhbVc6_2TsLWPQBGfUEg1H8TGpRuq9kFdME7atZZGiBsigfVJcJ665IpSyZ08vR2WtFabCE0DfPE1WzEZ6psrrTLSLeishe5o3WKgimNDMhd4qa6EbgTjCkXRAdAgNflX.ML8_BrEWzmdCWoYjtUWCKyUzYL1YctaB3rl19JbfSKTfGXdIU3MtJgNBed8P7RWdqK10jDwq4y2XtVQN8BbF7.lCzA30GDnytBy12kn1txn4BR8l_e_cvih1AE4ZWpteF.Op8Xw5kqZfu40v966oqaynDpk1eEwTMtdna5MukP5aWp2ZdVG3Z_hTmtU_iJfx2FL8ac_io1k_RVYWAZlHLNYXy20GUw5a9B0otSMjlwBNPXCY4Y5JvffA0DjEg1bWJ6XWaMwGSJzxUtNaPv_UwVtbTXrG09pMvj7xOucAkqsu8Wx6YCTB4ZUu_OI6fAWA_jXamstxb9RXHZVzt1I8fnv8f6hRRXO5aZ4yDm_pDB3bw6gCs9nEGKT5UXtzdAXJwa4_g92E3i7oD3C0mYLsRFbhPWP9iKXCVqFIcKqUo94f2EfAm2npuIfaGtLEGmnHHLZG03bmkuvpd2RfX_JtlM6R55f1tJfClw.j.9iWkNJWt",mdrd: "QEvl4b87UlExIfbDAzJMfhiEDLcKND5etAKwvtLadGU-1739099868-1.2.1.1-drVsSbrdtnHE49sd7ZZbA8IoBxRdlTY9CD9Mllpogvj81dD.tcuPWxSCFXWpQeHbfIqDjnRUuTr06syOy9Qza3OpR_QC0m4hps2eSaxKTR3po9TaZVUjkfIkCvdzJpdByjOqTA8E5n3gQO4PBJYylsy5MCF7YazAywQu41mnm6Ksugxzh7ddwlOD1pGcMRGRBMhIaFTdqVyjliQKH5Iss31G9FvgiMFDwgfcXn7Ukvzx62sauaFDdKI5UeruU.oOZvmgB3rihQnargufYxJB6JckaEtgdYDEkT6SDHYIMQXvepoQKBQhtwMthfTxhkiBDfmNL0fDW8_45TQ8u9mndqxrc8dP6Ymt9M256Kovj5UJ9Zhx1C5hNTCYTAICStfIIMYNyDTHpXp6kyggMpXjYAJY3DdHhAXvosNKl__x38riYUSCfaBHWEK2UeTcMc4hCDmguhn1RLlNpEw_zqDWCFLD7Ed5lTyvbePKUklW9GhzbSFylFTFljKA1JRmxJT7v58BvNJluVA8XiejCoFN7NchJMWOpS45x4pDV7ymDDkss.x2LGi4UCUYRaR4kmroGasauV7aS0quug4MycxPtteUnC9LLNWqF1zVSq4YMCyBUoxq0CiOAFD90p5knycq2Bhn8iuBvs2cQqogOnt_t6nSAlVU5zZmaRst.K_SE0e.ImP706cYbMKwt04SWfwYpqpoNjEalE0.3pdlNOh.L34ThG7rapvKGdWRAuGQ8xVHm8HdD56ythvLM0F0x4JG3TY70vwGOKJlPwNUW3G4ySupj7k7qc4WqmHTlXW9PxcnBWb8uH_vk7lqDC6xNe2HNOlqyTYr0lX3_QC3A7Zj9HMyYj53h3tATwbnpYMqQLoyK3GzARHRvzuaSoCQqsws2MFFyRnXx_vZijarjVv2arrvd2moEZq9Zi5jS8VvXspL06G6Qec86GKSfyL3R4DCnI0DRGVNeWxHlGZ3pw6bj._wK0ZN.H6tNVr8qHYjeKlN6XM4ZA.9ZqS4BoIbPWVCAFeKQsuWQXoqK7mFp7fJIHAekoo8UL1xJrz2HduEmPFMPpzfKeqBUswz7pxqYJxDn1ct10m8K62WvuUbIqDSCG0BkPAfxInYpkroJwZn7J12ddAsI4Tv9KzXCbdWCipC.I3Dny2HjW4wI3.Mco99JoLBZS_BwSRv67AmMA0rT900FJ6KE0f8LeslmcUYim3KQUijHAtJ1l1ht6IudDco5sKkhGXKnzh0r45RA.RhfrK3JCxObKGiEQ2fDxe35umTZGrtJL1tjerpDfisxEMH1hB2L3347G55qbPLIpd4BcBnbVgccypwUERCC1MifT54LmZVh0YQgMN.ws3kjoFEMrhj5fkieCqOxYAo8hFEzZxds1gvULnoyKnpiuFHL8h6fTTsFvV_f0zIiJCW6JfU7QCKk_vFLBV_Vhbf2YJGM66VwQ5DBmIPpMQ1fw8BRuhtkJMz6RdeOmk6mSgTIuHSfc.LvvL0VZd6VZBX4WwpkNUtuh7RGLGO8r0TMA0pb_M5GToTRYS0QW1h10iBuQpFOl_yanqOSvTbxIl2iuZZe9fyQxu2Yt2izTDdeNw00gtuZu4IpYZ9lBbIkVFAoMMW8scH_Zyv7ueMUHflMYhDhP2ws0S49duqbyTtjEqaxHBZQxGh6haQL1OsrOWnnk2IdnaV2f_qptL9KKH2PMhPfKESIDJIRzWno_FK6auIlEanyUDCy1FH9CyQSTeoeWb51fTUYOGnji7aNT1vvoYMbIBn37NV7DYxY841hb1HMdcZBahNR6s3gq6hSXfKRIXQAw"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f374849ab11743';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\/1205638974?__cf_chl_rt_tk=Ru0Yupla6U3TK70_.zq8njjQXUn8r7vhaZTj4vYpTT0-1739099868-1.0.1.1-CRbSKbSdpUafiGQ3W2SIoPvqucGmo0Y38M6USbQj0pc" + 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