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="360"></head><body><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-309853815080.mit-edu.top",cType: 'managed',cRay: '94ae227b387b3b7d',cH: 'PItUiDph1qkGaPp9_f7DGH1G37ICUU_E9oFo56JuYGM-1749110409-1.2.1.1-qdlpwRAf9dGMuGO7eucCNH_g5IRSb6.uJ4_t8H4OjnMak4xyRgjQ6msPk0VIxt5e',cUPMDTk: "\/post\/1307926485?__cf_chl_tk=hu.c2BIFvlbqLc8_hPs6GsFvDRuttthlonZmNvcr0ng-1749110409-1.0.1.1-B1MXzZx36mtF4oQbV2yGrah9ChSaoPut4yvw35BmLFw",cFPWv: 'b',cITimeS: '1749110409',cTplC: 0,cTplV: 5,cTplB: 'cf',fa: "\/post\/1307926485?__cf_chl_f_tk=hu.c2BIFvlbqLc8_hPs6GsFvDRuttthlonZmNvcr0ng-1749110409-1.0.1.1-B1MXzZx36mtF4oQbV2yGrah9ChSaoPut4yvw35BmLFw",md: "EFrP9oI9062FLftKLsgO2ZaNvXdzta02.AWU6Lh1OHE-1749110409-1.2.1.1-OqSofNHLuNImsSCEueJj9Erprm73ibLo3kC.wCbWj6QmRFth.ZXm5j_TLoBmCiXd9INShx3k.Qu0RBrv3legXcgPgkYAA4DFMI1yst1GGxPinRUkxs6lMcmmrcR4h310E0KaRzonJqLw9bu5Ohx7dumUQ.9QT9fUYrL2BDxD0vMmMz9n3t.G0nGaWHMPQY_YKqVrXpOQw_Hu2FSGgcKXXX54XyatGtc7gwy76A8EfT.N74jEQAHtTzfBErazTMFc8BM8iOliDIhUcrF1rbCoKR8s4WtfOXWjdQkpAKTUFEcfYGdxy_VbWxr.71BkEGglxE.otFn65oUiMVHe1AWMxtK_VhbC4TRZS3OpVZk.JaFaN4kb9oyGL2jFt4ScWbyaOi2RfmsiXGTs23_IzQ5cry1VL3t_g8u9L9GDyPx3N_pJuybtjfdPXasZ7AfzTvTJsPKrcWYsNtkawoLALBJPrWyCIVfCe9kjXnYNYlzfdTqwb6yv3aNkUV3f_fv5LMwIweEa8Dsg0Z9a2rV8OBKsrjr9iO.up06CQN17437f5i8SXknW1Sz9T_SoM_25QtPmvD2RVrNZyP94nRqYwfWkpTH1P0HvHTrbbPXM5_2SL9AI6FLLxse9yX845IHuSxpaugly3HMo3v2T2RRKda1KXrT3L7GOfcxEt3DMjeQplfPs.uzeYsUW7yqdh9AeQAJ3MhiuO7NYcfNFTn6sMwoARKsVBNPapHJCqS4wM3adGxVHnHEyhtB2mLGuCu5JUWwLBTzkSLieMPot2.7sBbO5CSiwpXUuPbJyNC1Fff8KFKMNVaRN0wlFOFjA5AnKXYX5Zz40K7tgc6p.PP5OAy9zeQ",mdrd: "Ec5M9gvXJV8rMfMBajWUCwAwWgVvioB.hAJ7LxaEUEQ-1749110409-1.2.1.1-XCk9y_z5mGSGzjLDwxXIRJpp0POchgQOXZ3B0I5JXqqaRbt1iYAam9b_Yv8HDXCe3l15JeL6VSQUb5HlBDJ5FSioxIS6a1atMhnhEVzs60yNITc3L.vDsOHQy.eUGA31Q1KRY8ywIeYHB3FcTmQwSeaX2ddaFDe_MCS7s5TNgbFbBTWTyxkihkS9dBpy84tAF0k81nx9nTWpex_iOvs3S4ngSLZdftssUIdyy5HjIRODwjuesWpGN76iWSMb6AjkdNcMN9fttsAVQhcANNzldlckqid5XfwjAQ8_F7i6mL9xt6TtGHe3j7aqvMVM5p1Dkm9jzAhPizPolErVT0LKqdN6dGq54Z6n90s9v8NToBjAqBxO9ISHN_Btv_GH_CVRse3j_.INy6O40niiPa4Y0.wvQ32D6pbnvDigHf29IJzVmo2OImcM_WnSsQgz7k6ysscGhp3h7yLS8OG2D8E02fSqjuh6I5f4_r9rVXlzKHInDkIi7Nb9dLX9u7ptzbta2o74rQfVHkRuxwk2jhbAChwr9uy8cC9894avZd5XpMuStuDh8Rs_Nu4kS7HqATWKNZ_EP8TFidIzzs4Dv0LCnKY8WV1bqr5RO6EO2MIaE76NkJcHneGWSNd3fxEHwpVYKir8vh5Kai7RdBpHTTysAzSf0BSa17ZuTUG69NlHBP8C2xoDmg30G.DrVXFblVTW2ZcV.OgsRNfgJu5pfOK5MRa5WILtL1U_1U2z_5z3caP1tWGLi18CpJOsDIvd5QwtGZnNtMMPHxfauB7X_L59CEzn0od2KATCMyZOY8L5vuWJ5Zrr9jBQpsv4g_kl2xCdAxPAk1.NtEfTfpH3BrzFcfA91u0qIBM830f2WAoVumLFYr8Vpugp3f_HEaTLOZZeb3R7AQQuKs7utWWlatxszv_3RdvEI8bSKg16hI6MZ97COLLrizW_CHXE1OXv.tR87TR7lWbr4NHLlSp5sGsw6wA0lw9im54WVvSz.fIp_Qvbym2_dMOPOy3rqaHBYzCmIcOESW.MHwWyNJvbhkMF.G38fGf7ZHpuJ.bOkBaDytra0lYdpq93nD8HrcLiRXDR3I_XJ7kgwzhaM78by.3Hxnf7MWh_1RRidf6E7bo0AHWjakX9x31Q6RkATZxnMRyRoAoBzLPKjxpJE3VotaFB29d1eqoeUtMD0eiCYnqeJ8PtkeniinkS9anopxaOdC.AwVaOJ9ZJFdrHB4XvUZ0Y4sCu7SI7V4C5z0.IngrQWKp8VNJxSLLzdrw2RxV1.5UEl6a1SiTTzoYTtHgTpjelLjDY6Z2Vn6MhGoAXwciVjYbBLBf1kxq2t3XIeLnZvHMZPmjUyID69djeXKGkCPsGe0YULdNKgssuyacKVr0Yf9CoSBJlzpSOTd4.U.HTZDPU40J8bSZq8BvVLtTLLxp4BA_WwNtfFEz9rEnZ0dhy0sRFpAOEzwppatF0uG2BTj5h4aQy2wekx4kvfQ8HzEJXv.4N5hJRJON.M1dpGpDqQLtq68_XWSCXiQBT2mFOpuxNJkEdpJbW4PXtt6bBfkWqo5dHy.5QF2WMmwJudeOg9CWwbdmWoXad6ukdImAIzUB2GjxOf2QrVcuv88JBVSgphoDbWth_EDssMULT1SkKRUlcJPU8MUKjA_WJ3RX1StAycTtVrSJ6rFLm3EOhDTebLOrJ3Io.kOXu827qJtz4n24Cwsu7mSUorCQlY.zJEeqvlDm6omLNoIE0UlMuCrtAdEFNq9hy_j0UNzYncSB32XszXVkHhddnFXn0.2tjh36.qZwoAsC7fs5YQlBY0RbR1V3sv8Uo9KYLfllLnd3h8TibR4OAM1oKYRqJpsvL93dRSK3h25AWnH2e38kKqP61v9he0aRvKBGUqjQjWE9qmJHZzq7F81qmQv2AUWEmSATB"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=94ae227b387b3b7d';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\/1307926485?__cf_chl_rt_tk=hu.c2BIFvlbqLc8_hPs6GsFvDRuttthlonZmNvcr0ng-1749110409-1.0.1.1-B1MXzZx36mtF4oQbV2yGrah9ChSaoPut4yvw35BmLFw" + 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