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-161393088766.mit-edu.top",cType: 'managed',cRay: '90fce7237eb8c987',cH: '4H._Y9C3nIamJjQXDm6RGKZ2RNT_b37C0IaTgfSoNZw-1739198935-1.2.1.1-zUEK8VeKGoDauqUFC5tN_FbreE9oXnUsZr1KbiAN6MgA1t7swEFarqfVq1pl4rY6',cUPMDTk: "\/post\/9764320158?__cf_chl_tk=SG3pBA_bxwOsSZmLwnCwyGqtckRnH7iNGknRr82zJ.E-1739198935-1.0.1.1-F6C_BYzOXkkHeGiBsIQgNO65CYq3JTULRhURPKfEeSI",cFPWv: 'g',cITimeS: '1739198935',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/9764320158?__cf_chl_f_tk=SG3pBA_bxwOsSZmLwnCwyGqtckRnH7iNGknRr82zJ.E-1739198935-1.0.1.1-F6C_BYzOXkkHeGiBsIQgNO65CYq3JTULRhURPKfEeSI",md: "lio1LnrYyHd1poTypFKfLnrXoD91V34ihg2ZsBXRoOI-1739198935-1.2.1.1-17Z.8wCwQQguv_md.m5k13LoJ_nXZkUHPDfQS2enCm4q6bVBX6dirRURORLVtn53tPJZQGY0Z4tcjJ9sRJcZJ6szI0zeo6T0l.gK9HgIsv6L1n2KmmKZk2vH5sTwBrfuuK8tpav0cQDhRQcfMAoJRgQP9ki9Wnfg9ub8oac1lsphyiaJzcnfyb_9UcpNHvCTMKHsLYqL3Mz7S6n30wSejZw3gyRWyR2CUS6qymQuRyqt.T64rudHpoR0u223HPnxIhJgzjZp1QVEJjD0VkQz2doexsS8l3ri84bsA8pDoKsb3gwobC2Zw2WCI4VadXtdY6wysckEfs1W3OgHo6GFKCr75pKMZyde_PIuRWmG39xWznA_17DFU20W_lzqofskfbQFDXaHLRO10YAkJ1ouZQDATs9oBV_3nxrkXBYXYyeE7zkE4tBfu_fg4ScNTejkApmnAy_A2kaZe2Ym3Ij0IKeWGHH7dB_Ydb05aTMttLev2RSpCEj.P6ptFxv8ih2pks9TG.2IFlJWKMRnwt.p0BJm9Y14D9lDu4jrWF8xij.CH20qS8_K93v3raoFcLTiX93FzN1GMwTy3.5Nrru_AVKZpeeNV53Mum6kO_5aaiCZ56tQjw2oLFxvSLxhJnT6ca8pM4gcwnkLS_p6n0oW3lWd90Lac09AzXaEDkLIHctml.pUWA.nH.N4YgCflqGvQUclxOvYrbnbOGsUaMSn2xV5Fgu4pcedw.la.cwnojHkY_Zq7D7Vqr1KUJBug.msr5XLB63kI75EBUawA21lbriMaGb3oHJ.cNjiDgr60gkPEX5lOesAcPiA21HdbTSzZ8aBxmQJ9HH7LQ0XMx5Mmy8xJu3W27vZZ.mSELWkY4oH5jyjgIzQbNcPtC88hq1TxcNmjAAjiYKaGh.YTnvFDjRXccqLOhCdaPJhrLiDYtVv9Oehsr2EpRu1.znj_nn3WlMJ5X2BWvY4Zqf4getGuNRjC_Hj7vphq_p6wtiAEASWvXKKALAQkW3zoYr9KvCFukcnKcalE4YD2VLXWVqyI_t10ItRa8w0RadV6Bq_45GRrdTIhx3HxKWpuWP.arJOuj3cpNnIoyzMc9ddIn6XeX453KiU8p0wDRVQPnnsskQNmAzcmZWd.O.vp9Vu4qLPNb4p6K_pksaVgKAVXBvKBFe65ViVGXiXaTjN3sfPrhrd9LHZ5rRAcrozhKlx0iTOyp5AhOoZg4RYoP3aXmb4tNPYPe30k7PQ0cXsztgsH3AVSxvPovc6tT4sfIWcwW5oaT5NqtASftg0QEeYLxWxU5i.b.PyR4XXLQ2bnf05DHM9LboVhStOZu4i8hyxBGdg_5xVcokGQm.ZPeVuVHxnXzMI4wc3nLhduV17WcFUl_mJ6xiuFoWBnbvbCMsK2L5cPCdkT3RiGkkxXASIC3jlHTSeaIRL17oKHP0mjYYzJKiFtuj1hYy3e3ZW__0V800e0koYP34v4JAfz81O89UUE5tfV94lGQEqn8nYc1l7JPy83YsaaY919Qf2AMkmlOiulFzWwPMgjPt8LzC4k1cwGFAGvG88ILkQiAK8psCQVCwsQLRECftLa3nd_bYwN_HH3k_IeeoqgX5hUeJ2nLZjnjeMMaZiEjBeiqVTirc2G8jpCn2eGLq7JtNrgHayNJH2hFKX6x7SZnRpt9Hsvf.0UKevpXZs3f01n3Izs6H9X_DrYxVIWvZiIRePMPJa1pyg91cvy9kpBOOJ4_F.mXEqJYLlnMT1A3nne6riI2G7hvcfPFzGpQU5O6WxpT9PFxJ3_arGqSikEB8GepYN4iGAlH5UsWP1h.cEuPsdH2gJxCWvXidLknD8Xk6Vf_fHMnpRxywJiXTlEVYjatGR18UqliSXl3hOF2yZIjcl3q9m6hr5FyrsOpknld2KXjnBuszO56gIJRhMNRSz5Cw1cmJGmT8SKu7k0SJoJvNUShunQnEoBXtt3yH1HpMRw.xgo6V3wN5WeCdNwUiF_yU.jIRj6Zqwpbs5gV3bOHX8RPupkWTBMv.2NlTOuyiQHnDVbqmNwU_l_vLZAXZNAxAZuoVTCvMZ9yD339gqt73.fTXAQOv7OFz_e5A6P6293z_JQepS.Fo5pkcAvvU_iFyovcPcSj7Y7zXEC.B6v_cd._xd89Lup6eV3UDqADSDQnRcbc.eRdw8MwRgG1ENroef7rbxV.8jxzC3llqfI.ZQd89x4D_Ys.5oDWQV8UpWhnmfyefA",mdrd: "6EuJeJklsI18DCIwH_XbKKTzKNI4Qghz9p6zgLESnTE-1739198935-1.2.1.1-dhb50IA.eNEBl8ND.xoZtMfWeM3O.EBw6STbQGVMyF4AdkrmUG0zk9VFre3NUz1Vdo4PMftZvQhk_RJEXACdORMTJKDuusYNzCqSMGAtkn3pdOimhZeP350uK1zwITOrIawdmj7bcW7Y41LjQOGj4alcHfUhPTDvvc4TqDbCPVmu2u1EokY1YjuT30HbjhiS3pzoINxWKkQj6TkoZHWge.FHPPvdHsQvzzx_OqDC5I_Om6nFF7NOE6nbrCjFT5ZY_6YPhdhQn.dO6XWzT_F7GVWqZz4x1x6IiJ22F9AeKGIltHsvd.a1C8b3gHBFKfGrGU757hOChQ4IxBrMDBP7qOhDvDy1DVVuZSBcnpyoeFd84QNw5LA2jgvKQWxnIIW5cyjYha6LVqU3FziWly.bVAuX1r4I3wBfSHM08m2VGn_afAfJvLC4U_IULOkTCERIUNCx2Y4e4zZ7F7ynGAfk79M2IBeIn4SDoL5GGcnemRS0xIIKbv7rQVCnwQPVIb1smMBeRAvgF3E3SSnya9wqI.lFmDedL79rsXmPHmn6DPrgbDMTvCjci5qCWO5vS2CsIeowgrxspOL4Bm4EMFdOJ3kPTW82sCtUs9AVSpY.NxtExRZ2OLKdQyi8hKtMit2A_hJ1sozT5eKOOHI6krLtaqAhhkLH2foUOKFMfJxg1b8PMAM14jkkI7QOu_dmWsuETEooA0XJN18QJGXyFQG2OD79h7xXTNnBZOI9wbrXM7dijM6i_c1NCNGB.drw2WV_qOWh3NintqZWN.o7Jdxc6Yv.jsd26Ne6zJq.FsQmzwpE.GPdBif8mCnFQO2tFjxFoZWe4pxzBf8T0BAXuY4SqX4YyWssc1OgpLo7zDiPDSLOFPO4nCunr6Jl1ClpDtnHTNY9PWmUruNqiJCQiR5hb_bHkK.NF_ubskyWDo0L52MNbRqVCZUewL61MuDPI7Vvm7eNQO6fT5kafQuHxRangfPAkzzs66wyHPd_L8VB5Q3i_Zo0rLFl8_EpNuyDRYiS4JfhPw6Qv1JotW.9qdPdOwm7e7ChXQMpwLNcZKm6mklbKDUfgAGl342V0.PFNJWNdO.uAT9DCm_T5hdo4flt_7ec4qX1TOKDMjvVzuIGDWfkK2aegge6bq_jpeRqM7a2JnDksdrzFZ2mhA3JNgUiHsPld34KNZLMmi7OOCGXf429g_WS0Ctuf7e4y.eukV0d_qVeznjLkBAVU6agBom_2Jhy3Sx1sxlnvnAtI04mZOW35P7yL14eMOIsIyQv45_5SK.k.ukHswM9VLPso8N1EzNbVLeWn0dEj8HJkuHWuz.JqUNm.TtN7v1ZmMWxaR05k7As5i6Q7wqu.MJfpPm2S6WKvUj5IW8EVdWYe_EREw9ZxeuhTfvvcbkD4AhtU4KSynxV7n.DGgHXpCZf7zX9.qkOvDXjebNg8tQi5j3_UD87X1YL_Eu5OUuF_r12NFNY_LEnB6aertcymtWqI05Bv27.dh4_1v4jhPg2SZYw.zr8_DJ4G6uKAU_dAD3CuX7DvL3xRbBSWduTjypq3f.zCNtDixE_6VZeJxkhV_fsOuhLY53ff.k0XiPT8_kBQipvJ2s1crGoA5F5uOadwAGZv7TOSRGX5qfq_1k613vgHkEOdLQyaOd4sQx91sEh3THlPcPNxmF_xYsPFs8kRLPnIw2dBPOhepaywJwn9EE_sj3gyVfLHZoXjaGSqlVrt8UEobRyq0LgQ.X2yfpuKVemsrMbQluvajr.Z48MvdUKoU3H0MdZ5NrFx1zGx4OQxWaLVgbQUPFvBj9446Ig04XrPOvASwdu3YIPVdbK_zwXm_0"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fce7237eb8c987';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\/9764320158?__cf_chl_rt_tk=SG3pBA_bxwOsSZmLwnCwyGqtckRnH7iNGknRr82zJ.E-1739198935-1.0.1.1-F6C_BYzOXkkHeGiBsIQgNO65CYq3JTULRhURPKfEeSI" + 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