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: "131930.mit-edu.top",cType: 'managed',cRay: '90fce17fae84d6e1',cH: 'qQExxAmiiJP.oShcyDjDEJRPas_t2IzQl29qKyG_bHw-1739198704-1.2.1.1-0OiR9ZgNXOEcwl0KxHKhI0rVtAcH_WCNOGfT.HEZ619zIcDMWhjnif0JZrJNGQUm',cUPMDTk: "\/post\/9475230618?__cf_chl_tk=Cdha2g5kcmeMoGF89UWE4FHPVfnmEwK6Qpl7uGGjOF4-1739198704-1.0.1.1-KngZ8Ldwav7lfvxyKYcAMorZ3bdCt72Q8WtCE_UzHnI",cFPWv: 'g',cITimeS: '1739198704',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9475230618?__cf_chl_f_tk=Cdha2g5kcmeMoGF89UWE4FHPVfnmEwK6Qpl7uGGjOF4-1739198704-1.0.1.1-KngZ8Ldwav7lfvxyKYcAMorZ3bdCt72Q8WtCE_UzHnI",md: "kUzqPhCu7cYndPgoC64TLwRfeIEXK3zkJuBvijggI1o-1739198704-1.2.1.1-p3.1Tc.welQ84xkLKg34HMpS1dZx9U26lnCzSrKzU.7fuSz2gm6JtutBh5XY4ATKVPIDhgoxOGfp1pwAIbxiIwMmiuv_Kt.kLP5lQHH3a6vIUKcpVcyG1Fj5t2bHMapgWPrj4yMVoJpMmHkWGVBANUMJaTjmtUUW9Z552HUGRXR8PIzzmNbePEB5b6npbW9FiBH0OOryXf7gnjOvh6lFvCHqjUikKRHqTtPVkwJHqrd0ArIE2Q7d8qrHOAF8FSmf8AhxICVIFt7t0lNRXOsa_9Wjqq85cElw5WpQ7pEzKeaOqSID_4EPH2ognsz22zigbTYDXMvaEJ70mqqA6Z4gaEW1kVMTnqHGvy5crE5xtwg.OEGdoXDIWhKDBKrXgaW4owRjMb.1S4gn8qGZH0K2iv2cETRf1vOxvbgoKOI7.4hj0sO9XHM98O5b.9LMgEDcXA4KawPnMqlojgvLxKr_nZ.kEqNvzelqAkF2V2463AIyFK5ghRX4zmG76cPBhsCBbr_pGT9EHxcNtlozGmREK4M5JuGeKlhvaSN42jedNDNY.Tlvdx53AObfMH3h6_3eyhE3jGlurLMEnnbJkEZJY1Rge5vlH000rZWLs4XQSWl2nOGiJFEGoRNNb0AZf_36AOGK_vvdWR7HmqDFfjkzVQj48j75yqmrY_ERrDo58.0fx51BQ5pBQJylWOVyE.Hlon7DHfMgHlb70e28XCbpWIbngLJ9eVGTRcf3NTb4pOLtRJXznyCEQVRjDIeeCGa8JX6DSREc8S9_mYD1Piy37sNiJxQxNMWI5KAUOLq5HJThrC8CW8_vsxzHCv2FtCdhAqWVPxqeEaomq0jH_6P20ZrwFUTKF93zmhq2VIbuPiu1bjJi.Av_J6WyC4pCNB2PKvlWgHrVGaBcHhuWzZCHj4U20OGyJQ5nFn5N7c03GmDZiwv05iEXDAqkDSHmMHi6Kzy9T9JG.8NYYEawQNM2o6RHmqIR.Qz3YoV5EuxNjyXA0OaZB_afQK7cTYz_uX_kNb6ibD4eEbOH0hjl0hmL4zv0j1RS9B6OuV2ZtNQHcwrNmP0U6RzyNPnaNOZEdpFG6k0Cw8xu8LUh41EcI5V4gOrsnbZ9mb_d8LB4T8FIwBt2gz7bIBB5ETXcdN9sf1IgpYxn7pRM9h4JO73aLmeGOucag0.UqjTLY4j4WJA1bXY6nPcDdBhOQ3cYRa8M8V1rTd46r_19CBwiwDdAWjIJFWwwfcqv3YrSH9iGSuXy3NROvF0kk1jqpYOYe7.ViOKB4FclptvUNMbyPGkHiUsG0E50PErwD9rfOcL9PA3EFHAiOVuiBej0tePJC71a.3K9ATcuuxPX41lv.yC.eF9dDMxSraMIDbWLYUR.fBhd7FIOQh.l1.WzrbRDXCG_XdkbYwmWy8sIt3HNossDljWUmStf45nE72JRcjvDvQiKexVGYEOkyU01dWcqav3l.CZxXIYeHS1WQBYVXjniS_c8lCMSR9gB.1XWid1vAQPjzsdv.YMgv5V_oDTCCVaBnY3YDRRTlZmchg5tP_Ihhx.iUvuZfJlxyUk91hnqgafKAiRVcnEFhYPM0jucQgDX6gLhtjgi9BsvwUZgsiQdd76hvbq3pohlCElJZDpav.nXYiWlKbr0LHZabtqtJT02LtoAU4OakbAH1EW8q2SSI9j1Jf_IYJjR.SHT0H86Ube3fHQQva_n7j0p0Rgye2DIYGCKaqvx4X2D7r7q316.Y3ma7NY4FOOxmUO2FqVwcyS19QplhuHThBjx76..hF_saxfXSH_nTIKq7041XDYKemNI9c87GnjrR25b5PNr1zW2CgBTIoYSBmzvgPFQHN0ghgAFs7NNgIfmwvr7IJftS4eZgLs5GOil2xg9S1CeDANBpHmJJAFtzJV5OScO4wrduxLofBSnGzSwL8bII4aGTJmwiWNvQWI3CqeBkfWLZLsBazOJyhZHyLp9TDuxbxaLSh0tocSRdI_YJrvIGUcWLu1JLtSmNaiLDgJgcicMnvG7Z.vdDlFL6abZMe7YgbVi11GkhOO4abugIYBmDNc7bugMLoioJNN5V6zyFcbveZlKGtB8RzjJb7Y3lzIvlvOXB7JOp4BVp9Od01_woCg7r0rlcdsCzmKq8xDjC_3P5WqpBMxi8mrAbMOyp6ZhHC3qvi16PLHxgHHbeWu_RuBg6_3J4fhjJOxdpo3ExpOydou.JLE",mdrd: "7g7GGWN25elfZyFcQwIcIx8OEfWWWzhY_LEBfziev_I-1739198704-1.2.1.1-ClJDYceU7sLIcnke28iM0w.zb949te5R.eHSd34zGd5TrJpYG0JAMnnUwk_R5omUfvQc4eHdoBbnxHHyRqHw4ALzeCLpbKAkjEghM0Y6k2WxQus0TiLBSP9dUMgS5gbewfbJ11hWsFoAJBSs9GrpneKfEQOSRGuqhe4Y.K0doVWLs6MAa7MtVYfyxsKJt3w6_XAwGaAebfYhsLs_zQYriu4CGunwY9xy3wEmF1Gfd.3RRmmjDa5NI1mUivHfuiXkGd13UWX2G514g4tYJJpRCv4nkQbSvMGXGKCChVML84Zzrsi.5o2W6bBnieMSmNlmTxlB3bah4hFRoGFJPlVZO0QLow7722MIYExs7.L2Y.vinAx639hpb40qWTKGB0hk640ZNlD2dBn6.mwLtRhziseVxG1pDVJqi4mBQz4bqLLh9x7D2_QlWLtg.z7vyrkWBoCGpU7fRvkyfm7x.6V8Sjd2yVgusZFcm0dHW3q5gnCG7uOvNDvQlIeRYU8CQKrDf6iEl0RQsD.U0NQ4.d6_frrgRUgSekHKW_ifcy1MdiL7CfQL9JMCPsyaWz6MwmdVNsHc1fkhf2tFei_TSY5_3LjlWmeHUih3GRNltKdM0BPHusL5XQTR1mfHzwrvRZGV46OTo1cmguE57CI5dj41E8RoNOsPvSLw7YphsrKyiidXoEfC_0yBxUZC0U5gUTQbuCGK56Ny8sGCgelymzU5EkjAlhUMRWDeAr3XK0dVL_qvlEBcObmRjeKizQx.OnMIt10Hrj1RhTvUa5CONfvrKSNY.vzY9eEZZ66EDdECN7.wp1sg41XqP6T0IU94Kkjb.ird.Sef2lHHdRhnu9eiJS0EJVILPFi13mj4vxIlu71YWkMRHyknENZ2ugoJ1IAwp.utg2H2JpmBJc_ghciRuU.AtNyKTAXeMnu4nxb_tlntsD4bmjm4jlsa2Jwb9K8UC_ksiZep3zPtQ2ktyC.YBe18h6nz.E8owZNCEM1eh4DOL6BIf9OZs12QIXkqaVeTThXgYf9g_Wnob8Xrsxu8AG_N8fuM17_SpcpkrDyuIhC_qLJMl7mGUCJ_ElgaSmNcsELivGZ5sfrlcS.riuC0_x7JUpMS7nwMJxl1YHoKvIQqT0jPOTDG0WtdTjoY2i2HULUMHOZRXpIAXiF7aAibpgZEGmzJ3uOzDoyh_Y4sLE7wYJxzMAmuXkiRCJn2Mor4v_w5PYWXKrRDnA_WvCLkA38P3wXJ4JIstlp3BhB0BdvRkiWBfHlh0sHLnpL41UJbthU8gJityN7Ire0xEu11.ejL90PgaAjIrPDRPOl1OubGRN56ppxoaivrpSxlrzj0HK9vKKhHw8TFFAOObLf1KTxChL_3L8NpRiM23X7co.dnJ7kDNOa7qbMPBNIATSBW3RxM7uEmuPU0lZI1kHg8DOh_msYtRybWunkNS7Pt_kip_rgdC6dkymhOUEF4f.a5V4j.1KxMh_YUxxSPbFdyQi9.eJC_EOk8B9bLBoCtKuabo6UobDVx7iAgQ.9qx7YJOO_wFwculR.Ca2fyGtHYvEbUiC8k34xalIrWrdw8URoSO01qoKigxtSRQya_3ztDdWo56ka80CNWJUuaTozwtjhQ0Z7gQRekXNr8McYdgNqf8LWOwDURIkA5Dl5CTuqQBCjOZ.sw2z5X3zAmHHfmt1m7NNApjlYs_Y7WBjOBw.zOR1zypbBoKajey8C2P.Hik4tr4U6C7AYyBbQhS.buLhj5ohD4WEXk2dbbzT647.PfuvxZn7FgHYlHsdW4nnNi"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fce17fae84d6e1';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\/9475230618?__cf_chl_rt_tk=Cdha2g5kcmeMoGF89UWE4FHPVfnmEwK6Qpl7uGGjOF4-1739198704-1.0.1.1-KngZ8Ldwav7lfvxyKYcAMorZ3bdCt72Q8WtCE_UzHnI" + 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