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-229710740522.mit-edu.top",cType: 'managed',cRay: '9110531b092107dd',cH: '8aowf6co2EBvzgI1aeSrlhLKUN4UpiZi_kEw4HvGOvE-1739402587-1.2.1.1-IEDA4PSO.cJeyI4_Kkfsdt9qz14E0XsDL8CccaBM1k9zKFaP6YHHizhPJ8oSk3E.',cUPMDTk: "\/post\/9261573804?__cf_chl_tk=FPkODqrNPKjwsp.VXFHEW6HNPOGRIvKzHzfaCR82h98-1739402587-1.0.1.1-gnjyX6MRyBM23_9UMSTQOZav017fdFOtQzI3ihHKvRE",cFPWv: 'b',cITimeS: '1739402587',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9261573804?__cf_chl_f_tk=FPkODqrNPKjwsp.VXFHEW6HNPOGRIvKzHzfaCR82h98-1739402587-1.0.1.1-gnjyX6MRyBM23_9UMSTQOZav017fdFOtQzI3ihHKvRE",md: "bZZkviaDxxtZX6nRNkG9midjUu0Nlf9D37R5puOrfOc-1739402587-1.2.1.1-xvPaH3CY.gwxIE0kHnfvXMXSJX.eBtmoQkJXcRxqCrVjKzcSOA5bTd3zulkXReqOvgR5WmDss6Ye_eTMyqNmojFndNdZJj.bZyDJrIequTH3ovjuewwPxZuBClqRmU2SMRlD8kMouF22xvpO96NWalpqvfNz7Mwv.4_XIFd3SEgsot4yNHG4D1sUZRSSpsG4Gqp.qrT2_LzEOdVqknplIxbkqKwobP_yP_HxJnNRzyGLzUftCv7jISvBWyzwXxUMeWWquzs7Rit3Eq2TIJ_7Yph.5HJ6p9qxrbiUipWCgaRpQSmvRiIRyBxIv2658u_MGvx8eDGYeuZ60iipNa9QpRas1slH65cqar.xhj6y9Zi1GvBqmeo.GFZ2TJc9LRrHoCKk7DS8PhSEzW7qPVU9.TFzG45oqgSQggC8sAp4FnSQmNnDBCw31wzdtmES68_ArPAkLlFNa0HPKqlaE.m2MR_p.leZwMDJqllzxe1692oONKKue9SrjLebOSSR8PB4x92sRQts5o5ivcOmeKiuWzCFTH2qSfjitJVDA4.GfBhnHwa0iY5byYChNjZPn.xwZ.DzUO.1VeHi3qE7QQtusGXVYmDWIv25EkzhsyF3C4VGm_RC64FF_.G7rfUyqJy_EHsvyHTLcir38Vp3kjsfbl5kWgNAC2eJJOmCMQzZuujGIBKzWUPRbfo4jadgoi3aEE39O_8dbDBjuKeUMiJspb5xR4QEkN_1j_MK7FW3R_hDQwJZBnXVYUeqhr7G7o3WAgk0etf7j4MAg1hmUDgHc5Ew1ecFw9jjDg5HTe23Z8StONMNE0_11LQzHB915n8h2rDV9g8CbNaw9_6Y7IcZnajOuHSTl4GcGZtSSiaZ5Vl0ETAbSTxDEmBOk6QFT6A9044twycAei8ItJvnWSBDba8YAWfyGvJ3OAVnjnpLk0lxN6Dw.krJ1FjVsPL9eReXISwEiofgvxshkP.WceVp3cv8fVRDv8tGwEagoPfU2MwPUokptsHPGWU2o5gRFNxWs7.Vl58ptw_xDJE9E6lUNmntTEaewvZZihypQGPcGD.OwdTDXawHo9DgpIMPo_kHEMKYQPcHOp1.SmcFs1b0HkfAO9N_MSbTS1o7ab9.Ognvb1f1Yww5E1RF6thX0FLW68auV4cig3jliuy8uMK8zzt_OZP2KkRlYP_Rr0dWGhNrXAR32yrTwE.LlAipEVMnPWh1LAI6HALJTTZFzCR46FipjOViRjrkdzN_x6UIprk28MShCwM5ZHFS5r1H1Q6_OZfoZqMuTg39_8_vCZ.aDDbXhELj4R9jOiGJRGaxXG8I42yN3pE7MsM6jz.xsf8bl9Al6.J1tfsGt51wEwHnxSveu9L0eVUBtiPuR_DnDi9Qe7iev7z9ra62iO.Tt7IqhwgdYhUH9eR_7724RAQJ6dL0qCz3Pk8rZLBL7AWooIqJexauxDSKQolLkFCJ.oig37EoTFVae4oY618vuTLMoEwYiUseWGjTFiUjJBbEAhOFC2gwI7n5trr4GrqmyeHmptJznc12W_hsXANYbENem6Bpt7UCB0sk1OjVxPcJOiM90JQVGB_AxlmbpdnNMf5a1veEyFMFuPtysZswsv46K19N8ddL0QJ79MgNC246uS4kMrVOEGXtRsmYgSmpZ8GbR_X7zpAU4fCos0SvbB2.v4hZR_f4_qhS7PRSi8eYBw0jsx8xYnO3CTMB8tTlFW3x.dTRgBtGrzuUFDBKjRV4YBuUM1ULiJtepL32DtkxBVJ1Re..0NvhlwEcyd96bUu2QC66NgWaIeZXB2F5n.kTa7qI9NCGH95cuYnVTngVK5PfTt84_1Y5W5BM_KU5TTCo8azvtEiLoHphMvNV_pWs7qkIpInnH7lmRQncUoN.j6DtmseXAlp2vYQaGt.8aKI9Kq9byrd_EWz1iUKIJD2WVC4zACGBk1PfoENTAMEm3B4baPiF6gnppGxkiKf.kptt6j8.7Ai4ywaPWYZuiGGWZVp4I9lsg_jeoxRytA1ayCXVv9bKfKD8kOyODnNIvkQzChdzQSVvddgTY3VoNrDL7Y7Ea1RF6SKwuaX1PM4r_jXE8d30MpU4BekqjLcuo7YFep_zmqzOoxFOYcEIzaew0GWcKoZvT29bprkbxUGGXWzQJioruIiWQBS7i8USh7cUvqyAFQJ_61.eF4OSBPMzkzEMqDN_M4boV2t9fNpCEVzt_GJMaVOA3cx2CoTkEAx6",mdrd: "QuDuxYBUKnEczYnrz6jdlyAdD9t.eER5qnCiyXvMQQk-1739402587-1.2.1.1-uzFjALyNnmjdCrA_cxKqW0Zw5qmWSnXOZFQdUYmPokYKxa4qp1A2o53gLBx2FoJ93oOM.JcwGMjHQAoko7DJfNKrSeRVoOVHAGDYNjnN2Qijbc43UpyQYHfUTO2R8rXnkqaFACGXDyB4hP3Ys_TdqWHEqPPjWVghqnXnbTly8EOyzglbVQo2he_lgjjX2bzwwBZXkcbjeoLMuCegcZknsFUR7s3JpEch2zIVJqVjR8XChVKgrhy3.6QCbD5dd7zsX1xHeMnaADQdW4D82OTaWx8zMb0_hr4ZTlQK1QdMLs5MpwQS5ALPv5kC8wwJnIJfhRPQ0G_m1FSIccKwdyDtrwVHPW81hYhsug6evtY967UIBzPj5x.1SqVZN6He37qwVls9GbxkvCoQA0D6yAXvtXps_GVPyeUO3b36aYqON9BOMSOnM.Yg5d5LknoOHl.G6Qljg2ebBNIEPw4xI3OHWpujGyRzm0Lc701NbmSItdfA5JRUpueuR7Rlw.r8jIoDXhkJkbskreJu8SUjuPT9w_Bi87CwPEpWgTW14khs4CAWDU8qXFpx3nuk.gr7cxFBzTJVD64S2fWiaYNDRpMzVvScJKJcUTVbBzMUljboMFF3UnB0JJn5uYSknIvbYoCjcTWFVr7tPGBtloGl2fhUvloNu0tQz.yuvH69NQaxM49y9NLcjsskG2gCqBa5QCTYnalk9NLEGx2G8OjkebkRL9TNfE3BmdvmvhxeBFJnbix59MfAlBBqTg0YpT9n.KeD0N65LqaqD8PHHMtIIan5zHlDJTLhnbhTrSMkh7c255ocW4x.lvHix.5Aepvg7v6Nc6QY0_odcGUtNl1W30yzcNepzMTniPCp5rEOtqikDdqb79kzziW23z.5H5aEqQEsctMnrCCb_BwU2CZtNMcgR.H5AHq7SU1v6aBdwu8XQ_jQrRcKdhdcRHCWvgr5sFYIL65WTljGJB4ACQ_O4X7DgEl777bgnTHKw0rmJUjq2BnUa3GcC_g0LwDLGGOKUjMF76rh0aBX1JJq.Mt.sik31a_wFKIa.mWf5ytNXEy89YzynnHH3yQ0yD2oXo74cKkvopfjS002VGO0co38ql4XuDvJaWTmsIvHvgv6O12cEw1FZ0yX3slXd35js8OvhNoMLPe_qdEYeNfoVHq7hyV8_oe9XRXi_vRbyVwofrzNJEHMASBwq_02Fo8sjB7elh4VPVyVudFtDqDjGBTY_svz2IQlBqMfMzXasJd0IMWiWk9L8Fna0p8ZaZHUevw1qsv.d7i1ni02YqCTZTghug.8pkRXCgh.wnpA0iiIZ4bWej0ipEfkUGecms99G2NKrlA2yEvqy04jO2NU9HxkEb4OcwxPdzSLPesgfrQBDjEGbBQhdFeISb89YJsiYi32bT_ozv2Ie2QboU7GoxYCJ9mftZotsnUZdWillpSB323QxjhfbDJm2McpYvAOA9Gw.kNoWDSblY4CxSr2emiY4uq7tXnjzQH51uOhPbzD5wGZn__ni4yUfyyixbEdCfEaEkKbwisr6wbiiCWgb_Oy4CPyfEwjkQYnmnFxdZjKog5vpHT.eWsBrkGRS7d2PhLtw5YkzAWLfxqyIIOYoXYlc7QMCPvZ16pmakagnCGw8QG_r0pGvJKjkNcLSer5vevSj46O.O4nn1K5pyn3EciNpbKiYHUcKSO.36f.Kke4rk_ofkpRzX23QWY9SUIMhV9vHcGK64Ex8xWB4oTyVY5YgsQ3jjzU4qwmyPwRYPj19CjeGsZquB4U3SUmC1BNCv4ttYftYPfGmEYC6XH1vzV4U._EErYwUkgGPkPHlRlCkkpZ4W0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9110531b092107dd';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\/9261573804?__cf_chl_rt_tk=FPkODqrNPKjwsp.VXFHEW6HNPOGRIvKzHzfaCR82h98-1739402587-1.0.1.1-gnjyX6MRyBM23_9UMSTQOZav017fdFOtQzI3ihHKvRE" + 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
